diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/mtd/maps | |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/mtd/maps')
66 files changed, 14515 insertions, 0 deletions
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig new file mode 100644 index 00000000000..8480057eadb --- /dev/null +++ b/drivers/mtd/maps/Kconfig @@ -0,0 +1,663 @@ +# drivers/mtd/maps/Kconfig +# $Id: Kconfig,v 1.42 2005/01/05 16:59:50 dwmw2 Exp $ + +menu "Mapping drivers for chip access" + depends on MTD!=n + +config MTD_COMPLEX_MAPPINGS + bool "Support non-linear mappings of flash chips" + depends on MTD + help + This causes the chip drivers to allow for complicated + paged mappings of flash chips. + +config MTD_PHYSMAP + tristate "CFI Flash device in physical memory map" + depends on MTD_CFI + help + This provides a 'mapping' driver which allows the CFI probe and + command set driver code to communicate with flash chips which + are mapped physically into the CPU's memory. You will need to + configure the physical address and size of the flash chips on + your particular board as well as the bus width, either statically + with config options or at run-time. + +config MTD_PHYSMAP_START + hex "Physical start address of flash mapping" + depends on MTD_PHYSMAP + default "0x8000000" + help + This is the physical memory location at which the flash chips + are mapped on your particular target board. Refer to the + memory map which should hopefully be in the documentation for + your board. + Ignore this option if you use run-time physmap configuration + (i.e., run-time calling physmap_configure()). + +config MTD_PHYSMAP_LEN + hex "Physical length of flash mapping" + depends on MTD_PHYSMAP + default "0x4000000" + help + This is the total length of the mapping of the flash chips on + your particular board. If there is space, or aliases, in the + physical memory map between the chips, this could be larger + than the total amount of flash present. Refer to the memory + map which should hopefully be in the documentation for your + board. + Ignore this option if you use run-time physmap configuration + (i.e., run-time calling physmap_configure()). + +config MTD_PHYSMAP_BANKWIDTH + int "Bank width in octets" + depends on MTD_PHYSMAP + default "2" + help + This is the total width of the data bus of the flash devices + in octets. For example, if you have a data bus width of 32 + bits, you would set the bus width octect value to 4. This is + used internally by the CFI drivers. + Ignore this option if you use run-time physmap configuration + (i.e., run-time calling physmap_configure()). + +config MTD_SUN_UFLASH + tristate "Sun Microsystems userflash support" + depends on (SPARC32 || SPARC64) && MTD_CFI + help + This provides a 'mapping' driver which supports the way in + which user-programmable flash chips are connected on various + Sun Microsystems boardsets. This driver will require CFI support + in the kernel, so if you did not enable CFI previously, do that now. + +config MTD_PNC2000 + tristate "CFI Flash device mapped on Photron PNC-2000" + depends on X86 && MTD_CFI && MTD_PARTITIONS + help + PNC-2000 is the name of Network Camera product from PHOTRON + Ltd. in Japan. It uses CFI-compliant flash. + +config MTD_SC520CDP + tristate "CFI Flash device mapped on AMD SC520 CDP" + depends on X86 && MTD_CFI + help + The SC520 CDP board has two banks of CFI-compliant chips and one + Dual-in-line JEDEC chip. This 'mapping' driver supports that + arrangement, implementing three MTD devices. + +config MTD_NETSC520 + tristate "CFI Flash device mapped on AMD NetSc520" + depends on X86 && MTD_CFI && MTD_PARTITIONS + help + This enables access routines for the flash chips on the AMD NetSc520 + demonstration board. If you have one of these boards and would like + to use the flash chips on it, say 'Y'. + +config MTD_TS5500 + tristate "JEDEC Flash device mapped on Technologic Systems TS-5500" + depends on X86 && MTD_JEDECPROBE && MTD_PARTITIONS + help + This provides a driver for the on-board flash of the Technologic + System's TS-5500 board. The flash is split into 3 partitions + which are accessed as separate MTD devices. + + mtd0 and mtd2 are the two BIOS drives. Unfortunately the BIOS + uses a proprietary flash translation layer from General Software, + which is not supported (the drives cannot be mounted). You can + create your own file system (jffs for example), but the BIOS + won't be able to boot from it. + + mtd1 allows you to reprogram your BIOS. BE VERY CAREFUL. + + Note that jumper 3 ("Write Enable Drive A") must be set + otherwise detection won't succeeed. + +config MTD_SBC_GXX + tristate "CFI Flash device mapped on Arcom SBC-GXx boards" + depends on X86 && MTD_CFI_INTELEXT && MTD_PARTITIONS && MTD_COMPLEX_MAPPINGS + help + This provides a driver for the on-board flash of Arcom Control + Systems' SBC-GXn family of boards, formerly known as SBC-MediaGX. + By default the flash is split into 3 partitions which are accessed + as separate MTD devices. This board utilizes Intel StrataFlash. + More info at + <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>. + +config MTD_ELAN_104NC + tristate "CFI Flash device mapped on Arcom ELAN-104NC" + depends on X86 && MTD_CFI_INTELEXT && MTD_PARTITIONS && MTD_COMPLEX_MAPPINGS + help + This provides a driver for the on-board flash of the Arcom Control + System's ELAN-104NC development board. By default the flash + is split into 3 partitions which are accessed as separate MTD + devices. This board utilizes Intel StrataFlash. More info at + <http://www.arcomcontrols.com/products/icp/pc104/processors/ELAN104NC.htm>. + +config MTD_LUBBOCK + tristate "CFI Flash device mapped on Intel Lubbock XScale eval board" + depends on ARCH_LUBBOCK && MTD_CFI_INTELEXT && MTD_PARTITIONS + help + This provides a driver for the on-board flash of the Intel + 'Lubbock' XScale evaluation board. + +config MTD_OCTAGON + tristate "JEDEC Flash device mapped on Octagon 5066 SBC" + depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS + help + This provides a 'mapping' driver which supports the way in which + the flash chips are connected in the Octagon-5066 Single Board + Computer. More information on the board is available at + <http://www.octagonsystems.com/CPUpages/5066.html>. + +config MTD_VMAX + tristate "JEDEC Flash device mapped on Tempustech VMAX SBC301" + depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS + help + This provides a 'mapping' driver which supports the way in which + the flash chips are connected in the Tempustech VMAX SBC301 Single + Board Computer. More information on the board is available at + <http://www.tempustech.com/>. + +config MTD_SCx200_DOCFLASH + tristate "Flash device mapped with DOCCS on NatSemi SCx200" + depends on SCx200 && MTD_CFI && MTD_PARTITIONS + help + Enable support for a flash chip mapped using the DOCCS signal on a + National Semiconductor SCx200 processor. + + If you don't know what to do here, say N. + + If compiled as a module, it will be called scx200_docflash. + +config MTD_AMD76XROM + tristate "BIOS flash chip on AMD76x southbridge" + depends on X86 && MTD_JEDECPROBE + help + Support for treating the BIOS flash chip on AMD76x motherboards + as an MTD device - with this you can reprogram your BIOS. + + BE VERY CAREFUL. + +config MTD_ICHXROM + tristate "BIOS flash chip on Intel Controller Hub 2/3/4/5" + depends on X86 && MTD_JEDECPROBE + help + Support for treating the BIOS flash chip on ICHX motherboards + as an MTD device - with this you can reprogram your BIOS. + + BE VERY CAREFUL. + +config MTD_SCB2_FLASH + tristate "BIOS flash chip on Intel SCB2 boards" + depends on X86 && MTD_JEDECPROBE + help + Support for treating the BIOS flash chip on Intel SCB2 boards + as an MTD device - with this you can reprogram your BIOS. + + BE VERY CAREFUL. + +config MTD_TSUNAMI + tristate "Flash chips on Tsunami TIG bus" + depends on ALPHA_TSUNAMI && MTD_COMPLEX_MAPPINGS + help + Support for the flash chip on Tsunami TIG bus. + +config MTD_LASAT + tristate "Flash chips on LASAT board" + depends on LASAT + help + Support for the flash chips on the Lasat 100 and 200 boards. + +config MTD_NETtel + tristate "CFI flash device on SnapGear/SecureEdge" + depends on X86 && MTD_PARTITIONS && MTD_JEDECPROBE + help + Support for flash chips on NETtel/SecureEdge/SnapGear boards. + +config MTD_PB1XXX + tristate "Flash devices on Alchemy PB1xxx boards" + depends on MIPS && ( MIPS_PB1000 || MIPS_PB1100 || MIPS_PB1500 ) + help + Flash memory access on Alchemy Pb1000/Pb1100/Pb1500 boards + +config MTD_PB1XXX_BOOT + bool "PB1x00 boot flash device" + depends on MTD_PB1XXX && ( MIPS_PB1100 || MIPS_PB1500 ) + help + Use the first of the two 32MiB flash banks on Pb1100/Pb1500 board. + You can say 'Y' to both this and 'MTD_PB1XXX_USER' below, to use + both banks. + +config MTD_PB1XXX_USER + bool "PB1x00 user flash device" + depends on MTD_PB1XXX && ( MIPS_PB1100 || MIPS_PB1500 ) + default y if MTD_PB1XX_BOOT = n + help + Use the second of the two 32MiB flash banks on Pb1100/Pb1500 board. + You can say 'Y' to both this and 'MTD_PB1XXX_BOOT' above, to use + both banks. + +config MTD_PB1550 + tristate "Flash devices on Alchemy PB1550 board" + depends on MIPS && MIPS_PB1550 + help + Flash memory access on Alchemy Pb1550 board + +config MTD_PB1550_BOOT + bool "PB1550 boot flash device" + depends on MTD_PB1550 + help + Use the first of the two 64MiB flash banks on Pb1550 board. + You can say 'Y' to both this and 'MTD_PB1550_USER' below, to use + both banks. + +config MTD_PB1550_USER + bool "PB1550 user flash device" + depends on MTD_PB1550 + default y if MTD_PB1550_BOOT = n + help + Use the second of the two 64MiB flash banks on Pb1550 board. + You can say 'Y' to both this and 'MTD_PB1550_BOOT' above, to use + both banks. + +config MTD_DB1550 + tristate "Flash devices on Alchemy DB1550 board" + depends on MIPS && MIPS_DB1550 + help + Flash memory access on Alchemy Db1550 board + +config MTD_DB1550_BOOT + bool "DB1550 boot flash device" + depends on MTD_DB1550 + help + Use the first of the two 64MiB flash banks on Db1550 board. + You can say 'Y' to both this and 'MTD_DB1550_USER' below, to use + both banks. + +config MTD_DB1550_USER + bool "DB1550 user flash device" + depends on MTD_DB1550 + default y if MTD_DB1550_BOOT = n + help + Use the second of the two 64MiB flash banks on Db1550 board. + You can say 'Y' to both this and 'MTD_DB1550_BOOT' above, to use + both banks. + +config MTD_DILNETPC + tristate "CFI Flash device mapped on DIL/Net PC" + depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT + help + MTD map driver for SSV DIL/Net PC Boards "DNP" and "ADNP". + For details, see <http://www.ssv-embedded.de/ssv/pc104/p169.htm> + and <http://www.ssv-embedded.de/ssv/pc104/p170.htm> + +config MTD_DILNETPC_BOOTSIZE + hex "Size of DIL/Net PC flash boot partition" + depends on MTD_DILNETPC + default "0x80000" + help + The amount of space taken up by the kernel or Etherboot + on the DIL/Net PC flash chips. + +config MTD_L440GX + tristate "BIOS flash chip on Intel L440GX boards" + depends on X86 && MTD_JEDECPROBE + help + Support for treating the BIOS flash chip on Intel L440GX motherboards + as an MTD device - with this you can reprogram your BIOS. + + BE VERY CAREFUL. + +config MTD_SBC8240 + tristate "Flash device on SBC8240" + depends on PPC32 && MTD_JEDECPROBE && 6xx && 8260 + help + Flash access on the SBC8240 board from Wind River. See + <http://www.windriver.com/products/sbc8240/> + +config MTD_TQM8XXL + tristate "CFI Flash device mapped on TQM8XXL" + depends on MTD_CFI && PPC32 && 8xx && TQM8xxL + help + The TQM8xxL PowerPC board has up to two banks of CFI-compliant + chips, currently uses AMD one. This 'mapping' driver supports + that arrangement, allowing the CFI probe and command set driver + code to communicate with the chips on the TQM8xxL board. More at + <http://www.denx.de/embedded-ppc-en.html>. + +config MTD_RPXLITE + tristate "CFI Flash device mapped on RPX Lite or CLLF" + depends on MTD_CFI && PPC32 && 8xx && (RPXCLASSIC || RPXLITE) + help + The RPXLite PowerPC board has CFI-compliant chips mapped in + a strange sparse mapping. This 'mapping' driver supports that + arrangement, allowing the CFI probe and command set driver code + to communicate with the chips on the RPXLite board. More at + <http://www.embeddedplanet.com/>. + +config MTD_MBX860 + tristate "System flash on MBX860 board" + depends on MTD_CFI && PPC32 && 8xx && MBX + help + This enables access routines for the flash chips on the Motorola + MBX860 board. If you have one of these boards and would like + to use the flash chips on it, say 'Y'. + +config MTD_DBOX2 + tristate "CFI Flash device mapped on D-Box2" + depends on PPC32 && 8xx && DBOX2 && MTD_CFI_INTELSTD && MTD_CFI_INTELEXT && MTD_CFI_AMDSTD + help + This enables access routines for the flash chips on the Nokia/Sagem + D-Box 2 board. If you have one of these boards and would like to use + the flash chips on it, say 'Y'. + +config MTD_CFI_FLAGADM + tristate "CFI Flash device mapping on FlagaDM" + depends on PPC32 && 8xx && MTD_CFI + help + Mapping for the Flaga digital module. If you don't have one, ignore + this setting. + +config MTD_BEECH + tristate "CFI Flash device mapped on IBM 405LP Beech" + depends on MTD_CFI && PPC32 && 40x && BEECH + help + This enables access routines for the flash chips on the IBM + 405LP Beech board. If you have one of these boards and would like + to use the flash chips on it, say 'Y'. + +config MTD_ARCTIC + tristate "CFI Flash device mapped on IBM 405LP Arctic" + depends on MTD_CFI && PPC32 && 40x && ARCTIC2 + help + This enables access routines for the flash chips on the IBM 405LP + Arctic board. If you have one of these boards and would like to + use the flash chips on it, say 'Y'. + +config MTD_WALNUT + tristate "Flash device mapped on IBM 405GP Walnut" + depends on MTD_JEDECPROBE && PPC32 && 40x && WALNUT + help + This enables access routines for the flash chips on the IBM 405GP + Walnut board. If you have one of these boards and would like to + use the flash chips on it, say 'Y'. + +config MTD_EBONY + tristate "Flash devices mapped on IBM 440GP Ebony" + depends on MTD_JEDECPROBE && PPC32 && 44x && EBONY + help + This enables access routines for the flash chips on the IBM 440GP + Ebony board. If you have one of these boards and would like to + use the flash chips on it, say 'Y'. + +config MTD_OCOTEA + tristate "Flash devices mapped on IBM 440GX Ocotea" + depends on MTD_CFI && PPC32 && 44x && OCOTEA + help + This enables access routines for the flash chips on the IBM 440GX + Ocotea board. If you have one of these boards and would like to + use the flash chips on it, say 'Y'. + +config MTD_REDWOOD + tristate "CFI Flash devices mapped on IBM Redwood" + depends on MTD_CFI && PPC32 && 4xx && 40x && ( REDWOOD_4 || REDWOOD_5 || REDWOOD_6 ) + help + This enables access routines for the flash chips on the IBM + Redwood board. If you have one of these boards and would like to + use the flash chips on it, say 'Y'. + +config MTD_CSTM_MIPS_IXX + tristate "Flash chip mapping on ITE QED-4N-S01B, Globespan IVR or custom board" + depends on MIPS && MTD_CFI && MTD_JEDECPROBE && MTD_PARTITIONS + help + This provides a mapping driver for the Integrated Technology + Express, Inc (ITE) QED-4N-S01B eval board and the Globespan IVR + Reference Board. It provides the necessary addressing, length, + buswidth, vpp code and addition setup of the flash device for + these boards. In addition, this mapping driver can be used for + other boards via setting of the CONFIG_MTD_CSTM_MIPS_IXX_START/ + LEN/BUSWIDTH parameters. This mapping will provide one mtd device + using one partition. The start address can be offset from the + beginning of flash and the len can be less than the total flash + device size to allow a window into the flash. Both CFI and JEDEC + probes are called. + +config MTD_CSTM_MIPS_IXX_START + hex "Physical start address of flash mapping" + depends on MTD_CSTM_MIPS_IXX + default "0x8000000" + help + This is the physical memory location that the MTD driver will + use for the flash chips on your particular target board. + Refer to the memory map which should hopefully be in the + documentation for your board. + +config MTD_CSTM_MIPS_IXX_LEN + hex "Physical length of flash mapping" + depends on MTD_CSTM_MIPS_IXX + default "0x4000000" + help + This is the total length that the MTD driver will use for the + flash chips on your particular board. Refer to the memory + map which should hopefully be in the documentation for your + board. + +config MTD_CSTM_MIPS_IXX_BUSWIDTH + int "Bus width in octets" + depends on MTD_CSTM_MIPS_IXX + default "2" + help + This is the total bus width of the mapping of the flash chips + on your particular board. + +config MTD_OCELOT + tristate "Momenco Ocelot boot flash device" + depends on MIPS && MOMENCO_OCELOT + help + This enables access routines for the boot flash device and for the + NVRAM on the Momenco Ocelot board. If you have one of these boards + and would like access to either of these, say 'Y'. + +config MTD_SOLUTIONENGINE + tristate "CFI Flash device mapped on Hitachi SolutionEngine" + depends on SUPERH && MTD_CFI && MTD_REDBOOT_PARTS + help + This enables access to the flash chips on the Hitachi SolutionEngine and + similar boards. Say 'Y' if you are building a kernel for such a board. + +config MTD_ARM_INTEGRATOR + tristate "CFI Flash device mapped on ARM Integrator/P720T" + depends on ARM && MTD_CFI + +config MTD_CDB89712 + tristate "Cirrus CDB89712 evaluation board mappings" + depends on ARM && MTD_CFI && ARCH_CDB89712 + help + This enables access to the flash or ROM chips on the CDB89712 board. + If you have such a board, say 'Y'. + +config MTD_SA1100 + tristate "CFI Flash device mapped on StrongARM SA11x0" + depends on ARM && MTD_CFI && ARCH_SA1100 && MTD_PARTITIONS + help + This enables access to the flash chips on most platforms based on + the SA1100 and SA1110, including the Assabet and the Compaq iPAQ. + If you have such a board, say 'Y'. + +config MTD_IPAQ + tristate "CFI Flash device mapped on Compaq/HP iPAQ" + depends on ARM && IPAQ_HANDHELD && MTD_CFI + help + This provides a driver for the on-board flash of the iPAQ. + +config MTD_DC21285 + tristate "CFI Flash device mapped on DC21285 Footbridge" + depends on ARM && MTD_CFI && ARCH_FOOTBRIDGE && MTD_COMPLEX_MAPPINGS + help + This provides a driver for the flash accessed using Intel's + 21285 bridge used with Intel's StrongARM processors. More info at + <http://www.intel.com/design/bridge/docs/21285_documentation.htm>. + +config MTD_IQ80310 + tristate "CFI Flash device mapped on the XScale IQ80310 board" + depends on ARM && MTD_CFI && ARCH_IQ80310 + help + This enables access routines for the flash chips on the Intel XScale + IQ80310 evaluation board. If you have one of these boards and would + like to use the flash chips on it, say 'Y'. + +config MTD_IXP4XX + tristate "CFI Flash device mapped on Intel IXP4xx based systems" + depends on ARM && MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX + help + This enables MTD access to flash devices on platforms based + on Intel's IXP4xx family of network processors such as the + IXDP425 and Coyote. If you have an IXP4xx based board and + would like to use the flash chips on it, say 'Y'. + +config MTD_IXP2000 + tristate "CFI Flash device mapped on Intel IXP2000 based systems" + depends on ARM && MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP2000 + help + This enables MTD access to flash devices on platforms based + on Intel's IXP2000 family of network processors such as the + IXDP425 and Coyote. If you have an IXP2000 based board and + would like to use the flash chips on it, say 'Y'. + +config MTD_EPXA10DB + tristate "CFI Flash device mapped on Epxa10db" + depends on ARM && MTD_CFI && MTD_PARTITIONS && ARCH_CAMELOT + help + This enables support for the flash devices on the Altera + Excalibur XA10 Development Board. If you are building a kernel + for on of these boards then you should say 'Y' otherwise say 'N'. + +config MTD_FORTUNET + tristate "CFI Flash device mapped on the FortuNet board" + depends on ARM && MTD_CFI && MTD_PARTITIONS && SA1100_FORTUNET + help + This enables access to the Flash on the FortuNet board. If you + have such a board, say 'Y'. + +config MTD_AUTCPU12 + tristate "NV-RAM mapping AUTCPU12 board" + depends on ARM && ARCH_AUTCPU12 + help + This enables access to the NV-RAM on autronix autcpu12 board. + If you have such a board, say 'Y'. + +config MTD_EDB7312 + tristate "CFI Flash device mapped on EDB7312" + depends on ARM && MTD_CFI + help + This enables access to the CFI Flash on the Cogent EDB7312 board. + If you have such a board, say 'Y' here. + +config MTD_IMPA7 + tristate "JEDEC Flash device mapped on impA7" + depends on ARM && MTD_JEDECPROBE + help + This enables access to the NOR Flash on the impA7 board of + implementa GmbH. If you have such a board, say 'Y' here. + +config MTD_CEIVA + tristate "JEDEC Flash device mapped on Ceiva/Polaroid PhotoMax Digital Picture Frame" + depends on ARM && MTD_JEDECPROBE && ARCH_CEIVA + help + This enables access to the flash chips on the Ceiva/Polaroid + PhotoMax Digital Picture Frame. + If you have such a device, say 'Y'. + +config MTD_NOR_TOTO + tristate "NOR Flash device on TOTO board" + depends on ARM && ARCH_OMAP && OMAP_TOTO + help + This enables access to the NOR flash on the Texas Instruments + TOTO board. + +config MTD_H720X + tristate "Hynix evaluation board mappings" + depends on ARM && MTD_CFI && ( ARCH_H7201 || ARCH_H7202 ) + help + This enables access to the flash chips on the Hynix evaluation boards. + If you have such a board, say 'Y'. + +config MTD_MPC1211 + tristate "CFI Flash device mapped on Interface MPC-1211" + depends on SUPERH && SH_MPC1211 && MTD_CFI + help + This enables access to the flash chips on the Interface MPC-1211(CTP/PCI/MPC-SH02). + If you have such a board, say 'Y'. + +# This needs CFI or JEDEC, depending on the cards found. +config MTD_PCI + tristate "PCI MTD driver" + depends on MTD && PCI && MTD_COMPLEX_MAPPINGS + help + Mapping for accessing flash devices on add-in cards like the Intel XScale + IQ80310 card, and the Intel EBSA285 card in blank ROM programming mode + (please see the manual for the link settings). + + If you are not sure, say N. + +config MTD_PCMCIA + tristate "PCMCIA MTD driver" + depends on MTD && PCMCIA && MTD_COMPLEX_MAPPINGS && BROKEN + help + Map driver for accessing PCMCIA linear flash memory cards. These + cards are usually around 4-16MiB in size. This does not include + Compact Flash cards which are treated as IDE devices. + +config MTD_UCLINUX + tristate "Generic uClinux RAM/ROM filesystem support" + depends on MTD_PARTITIONS && !MMU + help + Map driver to support image based filesystems for uClinux. + +config MTD_WRSBC8260 + tristate "Map driver for WindRiver PowerQUICC II MPC82xx board" + depends on (SBC82xx || SBC8560) + select MTD_PARTITIONS + select MTD_MAP_BANK_WIDTH_4 + select MTD_MAP_BANK_WIDTH_1 + select MTD_CFI_I1 + select MTD_CFI_I4 + help + Map driver for WindRiver PowerQUICC II MPC82xx board. Drives + all three flash regions on CS0, CS1 and CS6 if they are configured + correctly by the boot loader. + +config MTD_DMV182 + tristate "Map driver for Dy-4 SVME/DMV-182 board." + depends on DMV182 + select MTD_PARTITIONS + select MTD_MAP_BANK_WIDTH_32 + select MTD_CFI_I8 + select MTD_CFI_AMDSTD + help + Map driver for Dy-4 SVME/DMV-182 board. + +config MTD_BAST + tristate "Map driver for Simtec BAST (EB2410ITX)" + depends on ARCH_BAST + select MTD_PARTITIONS + select MTD_MAP_BANK_WIDTH_16 + select MTD_JEDECPROBE + help + Map driver for NOR flash on the Simtec BAST (EB2410ITX). + + Note, this driver *cannot* over-ride the WP link on the + board, or currently detect the state of the link. + +config MTD_BAST_MAXSIZE + int "Maximum size for BAST flash area (MiB)" + depends on MTD_BAST + default "4" + +config MTD_SHARP_SL + bool "ROM maped on Sharp SL Series" + depends on MTD && ARCH_PXA + help + This enables access to the flash chip on the Sharp SL Series of PDAs. + +endmenu + diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile new file mode 100644 index 00000000000..7ffe02b8530 --- /dev/null +++ b/drivers/mtd/maps/Makefile @@ -0,0 +1,73 @@ +# +# linux/drivers/maps/Makefile +# +# $Id: Makefile.common,v 1.23 2005/01/05 17:06:36 dwmw2 Exp $ + +ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y) +obj-$(CONFIG_MTD) += map_funcs.o +endif + +# Chip mappings +obj-$(CONFIG_MTD_CDB89712) += cdb89712.o +obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o +obj-$(CONFIG_MTD_BAST) += bast-flash.o +obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o +obj-$(CONFIG_MTD_CSTM_MIPS_IXX) += cstm_mips_ixx.o +obj-$(CONFIG_MTD_DC21285) += dc21285.o +obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o +obj-$(CONFIG_MTD_ELAN_104NC) += elan-104nc.o +obj-$(CONFIG_MTD_EPXA10DB) += epxa10db-flash.o +obj-$(CONFIG_MTD_IQ80310) += iq80310.o +obj-$(CONFIG_MTD_L440GX) += l440gx.o +obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o +obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o +obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o +obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o +obj-$(CONFIG_MTD_MBX860) += mbx860.o +obj-$(CONFIG_MTD_CEIVA) += ceiva.o +obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o +obj-$(CONFIG_MTD_PHYSMAP) += physmap.o +obj-$(CONFIG_MTD_PNC2000) += pnc2000.o +obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o +obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o +obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o +obj-$(CONFIG_MTD_SA1100) += sa1100-flash.o +obj-$(CONFIG_MTD_IPAQ) += ipaq-flash.o +obj-$(CONFIG_MTD_SBC_GXX) += sbc_gxx.o +obj-$(CONFIG_MTD_SC520CDP) += sc520cdp.o +obj-$(CONFIG_MTD_NETSC520) += netsc520.o +obj-$(CONFIG_MTD_TS5500) += ts5500_flash.o +obj-$(CONFIG_MTD_SUN_UFLASH) += sun_uflash.o +obj-$(CONFIG_MTD_VMAX) += vmax301.o +obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o +obj-$(CONFIG_MTD_DBOX2) += dbox2-flash.o +obj-$(CONFIG_MTD_OCELOT) += ocelot.o +obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o +obj-$(CONFIG_MTD_PCI) += pci.o +obj-$(CONFIG_MTD_PB1XXX) += pb1xxx-flash.o +obj-$(CONFIG_MTD_DB1X00) += db1x00-flash.o +obj-$(CONFIG_MTD_PB1550) += pb1550-flash.o +obj-$(CONFIG_MTD_DB1550) += db1550-flash.o +obj-$(CONFIG_MTD_LASAT) += lasat.o +obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o +obj-$(CONFIG_MTD_EDB7312) += edb7312.o +obj-$(CONFIG_MTD_IMPA7) += impa7.o +obj-$(CONFIG_MTD_FORTUNET) += fortunet.o +obj-$(CONFIG_MTD_REDWOOD) += redwood.o +obj-$(CONFIG_MTD_UCLINUX) += uclinux.o +obj-$(CONFIG_MTD_NETtel) += nettel.o +obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o +obj-$(CONFIG_MTD_EBONY) += ebony.o +obj-$(CONFIG_MTD_OCOTEA) += ocotea.o +obj-$(CONFIG_MTD_BEECH) += beech-mtd.o +obj-$(CONFIG_MTD_ARCTIC) += arctic-mtd.o +obj-$(CONFIG_MTD_WALNUT) += walnut.o +obj-$(CONFIG_MTD_H720X) += h720x-flash.o +obj-$(CONFIG_MTD_SBC8240) += sbc8240.o +obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o +obj-$(CONFIG_MTD_MPC1211) += mpc1211.o +obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o +obj-$(CONFIG_MTD_IXP2000) += ixp2000.o +obj-$(CONFIG_MTD_WRSBC8260) += wr_sbc82xx_flash.o +obj-$(CONFIG_MTD_DMV182) += dmv182.o +obj-$(CONFIG_MTD_SHARP_SL) += sharpsl-flash.o diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c new file mode 100644 index 00000000000..51e97b05304 --- /dev/null +++ b/drivers/mtd/maps/amd76xrom.c @@ -0,0 +1,332 @@ +/* + * amd76xrom.c + * + * Normal mappings of chips in physical memory + * $Id: amd76xrom.c,v 1.19 2004/11/28 09:40:39 dwmw2 Exp $ + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/cfi.h> +#include <linux/mtd/flashchip.h> +#include <linux/config.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/list.h> + + +#define xstr(s) str(s) +#define str(s) #s +#define MOD_NAME xstr(KBUILD_BASENAME) + +#define ADDRESS_NAME_LEN 18 + +#define ROM_PROBE_STEP_SIZE (64*1024) /* 64KiB */ + +struct amd76xrom_window { + void __iomem *virt; + unsigned long phys; + unsigned long size; + struct list_head maps; + struct resource rsrc; + struct pci_dev *pdev; +}; + +struct amd76xrom_map_info { + struct list_head list; + struct map_info map; + struct mtd_info *mtd; + struct resource rsrc; + char map_name[sizeof(MOD_NAME) + 2 + ADDRESS_NAME_LEN]; +}; + +static struct amd76xrom_window amd76xrom_window = { + .maps = LIST_HEAD_INIT(amd76xrom_window.maps), +}; + +static void amd76xrom_cleanup(struct amd76xrom_window *window) +{ + struct amd76xrom_map_info *map, *scratch; + u8 byte; + + if (window->pdev) { + /* Disable writes through the rom window */ + pci_read_config_byte(window->pdev, 0x40, &byte); + pci_write_config_byte(window->pdev, 0x40, byte & ~1); + } + + /* Free all of the mtd devices */ + list_for_each_entry_safe(map, scratch, &window->maps, list) { + if (map->rsrc.parent) { + release_resource(&map->rsrc); + } + del_mtd_device(map->mtd); + map_destroy(map->mtd); + list_del(&map->list); + kfree(map); + } + if (window->rsrc.parent) + release_resource(&window->rsrc); + + if (window->virt) { + iounmap(window->virt); + window->virt = NULL; + window->phys = 0; + window->size = 0; + window->pdev = NULL; + } +} + + +static int __devinit amd76xrom_init_one (struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; + u8 byte; + struct amd76xrom_window *window = &amd76xrom_window; + struct amd76xrom_map_info *map = NULL; + unsigned long map_top; + + /* Remember the pci dev I find the window in */ + window->pdev = pdev; + + /* Assume the rom window is properly setup, and find it's size */ + pci_read_config_byte(pdev, 0x43, &byte); + if ((byte & ((1<<7)|(1<<6))) == ((1<<7)|(1<<6))) { + window->phys = 0xffb00000; /* 5MiB */ + } + else if ((byte & (1<<7)) == (1<<7)) { + window->phys = 0xffc00000; /* 4MiB */ + } + else { + window->phys = 0xffff0000; /* 64KiB */ + } + window->size = 0xffffffffUL - window->phys + 1UL; + + /* + * Try to reserve the window mem region. If this fails then + * it is likely due to a fragment of the window being + * "reseved" by the BIOS. In the case that the + * request_mem_region() fails then once the rom size is + * discovered we will try to reserve the unreserved fragment. + */ + window->rsrc.name = MOD_NAME; + window->rsrc.start = window->phys; + window->rsrc.end = window->phys + window->size - 1; + window->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY; + if (request_resource(&iomem_resource, &window->rsrc)) { + window->rsrc.parent = NULL; + printk(KERN_ERR MOD_NAME + " %s(): Unable to register resource" + " 0x%.08lx-0x%.08lx - kernel bug?\n", + __func__, + window->rsrc.start, window->rsrc.end); + } + +#if 0 + + /* Enable the selected rom window */ + pci_read_config_byte(pdev, 0x43, &byte); + pci_write_config_byte(pdev, 0x43, byte | rwindow->segen_bits); +#endif + + /* Enable writes through the rom window */ + pci_read_config_byte(pdev, 0x40, &byte); + pci_write_config_byte(pdev, 0x40, byte | 1); + + /* FIXME handle registers 0x80 - 0x8C the bios region locks */ + + /* For write accesses caches are useless */ + window->virt = ioremap_nocache(window->phys, window->size); + if (!window->virt) { + printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n", + window->phys, window->size); + goto out; + } + + /* Get the first address to look for an rom chip at */ + map_top = window->phys; +#if 1 + /* The probe sequence run over the firmware hub lock + * registers sets them to 0x7 (no access). + * Probe at most the last 4M of the address space. + */ + if (map_top < 0xffc00000) { + map_top = 0xffc00000; + } +#endif + /* Loop through and look for rom chips */ + while((map_top - 1) < 0xffffffffUL) { + struct cfi_private *cfi; + unsigned long offset; + int i; + + if (!map) { + map = kmalloc(sizeof(*map), GFP_KERNEL); + } + if (!map) { + printk(KERN_ERR MOD_NAME ": kmalloc failed"); + goto out; + } + memset(map, 0, sizeof(*map)); + INIT_LIST_HEAD(&map->list); + map->map.name = map->map_name; + map->map.phys = map_top; + offset = map_top - window->phys; + map->map.virt = (void __iomem *) + (((unsigned long)(window->virt)) + offset); + map->map.size = 0xffffffffUL - map_top + 1UL; + /* Set the name of the map to the address I am trying */ + sprintf(map->map_name, "%s @%08lx", + MOD_NAME, map->map.phys); + + /* There is no generic VPP support */ + for(map->map.bankwidth = 32; map->map.bankwidth; + map->map.bankwidth >>= 1) + { + char **probe_type; + /* Skip bankwidths that are not supported */ + if (!map_bankwidth_supported(map->map.bankwidth)) + continue; + + /* Setup the map methods */ + simple_map_init(&map->map); + + /* Try all of the probe methods */ + probe_type = rom_probe_types; + for(; *probe_type; probe_type++) { + map->mtd = do_map_probe(*probe_type, &map->map); + if (map->mtd) + goto found; + } + } + map_top += ROM_PROBE_STEP_SIZE; + continue; + found: + /* Trim the size if we are larger than the map */ + if (map->mtd->size > map->map.size) { + printk(KERN_WARNING MOD_NAME + " rom(%u) larger than window(%lu). fixing...\n", + map->mtd->size, map->map.size); + map->mtd->size = map->map.size; + } + if (window->rsrc.parent) { + /* + * Registering the MTD device in iomem may not be possible + * if there is a BIOS "reserved" and BUSY range. If this + * fails then continue anyway. + */ + map->rsrc.name = map->map_name; + map->rsrc.start = map->map.phys; + map->rsrc.end = map->map.phys + map->mtd->size - 1; + map->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY; + if (request_resource(&window->rsrc, &map->rsrc)) { + printk(KERN_ERR MOD_NAME + ": cannot reserve MTD resource\n"); + map->rsrc.parent = NULL; + } + } + + /* Make the whole region visible in the map */ + map->map.virt = window->virt; + map->map.phys = window->phys; + cfi = map->map.fldrv_priv; + for(i = 0; i < cfi->numchips; i++) { + cfi->chips[i].start += offset; + } + + /* Now that the mtd devices is complete claim and export it */ + map->mtd->owner = THIS_MODULE; + if (add_mtd_device(map->mtd)) { + map_destroy(map->mtd); + map->mtd = NULL; + goto out; + } + + + /* Calculate the new value of map_top */ + map_top += map->mtd->size; + + /* File away the map structure */ + list_add(&map->list, &window->maps); + map = NULL; + } + + out: + /* Free any left over map structures */ + if (map) { + kfree(map); + } + /* See if I have any map structures */ + if (list_empty(&window->maps)) { + amd76xrom_cleanup(window); + return -ENODEV; + } + return 0; +} + + +static void __devexit amd76xrom_remove_one (struct pci_dev *pdev) +{ + struct amd76xrom_window *window = &amd76xrom_window; + + amd76xrom_cleanup(window); +} + +static struct pci_device_id amd76xrom_pci_tbl[] = { + { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, + PCI_ANY_ID, PCI_ANY_ID, }, + { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7440, + PCI_ANY_ID, PCI_ANY_ID, }, + { PCI_VENDOR_ID_AMD, 0x7468 }, /* amd8111 support */ + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, amd76xrom_pci_tbl); + +#if 0 +static struct pci_driver amd76xrom_driver = { + .name = MOD_NAME, + .id_table = amd76xrom_pci_tbl, + .probe = amd76xrom_init_one, + .remove = amd76xrom_remove_one, +}; +#endif + +static int __init init_amd76xrom(void) +{ + struct pci_dev *pdev; + struct pci_device_id *id; + pdev = NULL; + for(id = amd76xrom_pci_tbl; id->vendor; id++) { + pdev = pci_find_device(id->vendor, id->device, NULL); + if (pdev) { + break; + } + } + if (pdev) { + return amd76xrom_init_one(pdev, &amd76xrom_pci_tbl[0]); + } + return -ENXIO; +#if 0 + return pci_module_init(&amd76xrom_driver); +#endif +} + +static void __exit cleanup_amd76xrom(void) +{ + amd76xrom_remove_one(amd76xrom_window.pdev); +} + +module_init(init_amd76xrom); +module_exit(cleanup_amd76xrom); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Eric Biederman <ebiederman@lnxi.com>"); +MODULE_DESCRIPTION("MTD map driver for BIOS chips on the AMD76X southbridge"); + diff --git a/drivers/mtd/maps/arctic-mtd.c b/drivers/mtd/maps/arctic-mtd.c new file mode 100644 index 00000000000..777276fd0e1 --- /dev/null +++ b/drivers/mtd/maps/arctic-mtd.c @@ -0,0 +1,135 @@ +/* + * $Id: arctic-mtd.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $ + * + * drivers/mtd/maps/arctic-mtd.c MTD mappings and partition tables for + * IBM 405LP Arctic boards. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (C) 2002, International Business Machines Corporation + * All Rights Reserved. + * + * Bishop Brock + * IBM Research, Austin Center for Low-Power Computing + * bcbrock@us.ibm.com + * March 2002 + * + * modified for Arctic by, + * David Gibson + * IBM OzLabs, Canberra, Australia + * <arctic@gibson.dropbear.id.au> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> +#include <asm/ibm4xx.h> + +/* + * 0 : 0xFE00 0000 - 0xFEFF FFFF : Filesystem 1 (16MiB) + * 1 : 0xFF00 0000 - 0xFF4F FFFF : kernel (5.12MiB) + * 2 : 0xFF50 0000 - 0xFFF5 FFFF : Filesystem 2 (10.624MiB) (if non-XIP) + * 3 : 0xFFF6 0000 - 0xFFFF FFFF : PIBS Firmware (640KiB) + */ + +#define FFS1_SIZE 0x01000000 /* 16MiB */ +#define KERNEL_SIZE 0x00500000 /* 5.12MiB */ +#define FFS2_SIZE 0x00a60000 /* 10.624MiB */ +#define FIRMWARE_SIZE 0x000a0000 /* 640KiB */ + + +#define NAME "Arctic Linux Flash" +#define PADDR SUBZERO_BOOTFLASH_PADDR +#define BUSWIDTH 2 +#define SIZE SUBZERO_BOOTFLASH_SIZE +#define PARTITIONS 4 + +/* Flash memories on these boards are memory resources, accessed big-endian. */ + +{ + /* do nothing for now */ +} + +static struct map_info arctic_mtd_map = { + .name = NAME, + .size = SIZE, + .bankwidth = BUSWIDTH, + .phys = PADDR, +}; + +static struct mtd_info *arctic_mtd; + +static struct mtd_partition arctic_partitions[PARTITIONS] = { + { .name = "Filesystem", + .size = FFS1_SIZE, + .offset = 0,}, + { .name = "Kernel", + .size = KERNEL_SIZE, + .offset = FFS1_SIZE,}, + { .name = "Filesystem", + .size = FFS2_SIZE, + .offset = FFS1_SIZE + KERNEL_SIZE,}, + { .name = "Firmware", + .size = FIRMWARE_SIZE, + .offset = SUBZERO_BOOTFLASH_SIZE - FIRMWARE_SIZE,}, +}; + +static int __init +init_arctic_mtd(void) +{ + printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); + + arctic_mtd_map.virt = ioremap(PADDR, SIZE); + + if (!arctic_mtd_map.virt) { + printk("%s: failed to ioremap 0x%x\n", NAME, PADDR); + return -EIO; + } + simple_map_init(&arctic_mtd_map); + + printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); + arctic_mtd = do_map_probe("cfi_probe", &arctic_mtd_map); + + if (!arctic_mtd) + return -ENXIO; + + arctic_mtd->owner = THIS_MODULE; + + return add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS); +} + +static void __exit +cleanup_arctic_mtd(void) +{ + if (arctic_mtd) { + del_mtd_partitions(arctic_mtd); + map_destroy(arctic_mtd); + iounmap((void *) arctic_mtd_map.virt); + } +} + +module_init(init_arctic_mtd); +module_exit(cleanup_arctic_mtd); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Gibson <arctic@gibson.dropbear.id.au>"); +MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Arctic boards"); diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c new file mode 100644 index 00000000000..cf362ccc3c8 --- /dev/null +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -0,0 +1,127 @@ +/* + * NV-RAM memory access on autcpu12 + * (C) 2002 Thomas Gleixner (gleixner@autronix.de) + * + * $Id: autcpu12-nvram.c,v 1.8 2004/11/04 13:24:14 gleixner Exp $ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <asm/io.h> +#include <asm/sizes.h> +#include <asm/hardware.h> +#include <asm/arch/autcpu12.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + +static struct mtd_info *sram_mtd; + +struct map_info autcpu12_sram_map = { + .name = "SRAM", + .size = 32768, + .bankwidth = 4, + .phys = 0x12000000, +}; + +static int __init init_autcpu12_sram (void) +{ + int err, save0, save1; + + autcpu12_sram_map.virt = ioremap(0x12000000, SZ_128K); + if (!autcpu12_sram_map.virt) { + printk("Failed to ioremap autcpu12 NV-RAM space\n"); + err = -EIO; + goto out; + } + simple_map_init(&autcpu_sram_map); + + /* + * Check for 32K/128K + * read ofs 0 + * read ofs 0x10000 + * Write complement to ofs 0x100000 + * Read and check result on ofs 0x0 + * Restore contents + */ + save0 = map_read32(&autcpu12_sram_map,0); + save1 = map_read32(&autcpu12_sram_map,0x10000); + map_write32(&autcpu12_sram_map,~save0,0x10000); + /* if we find this pattern on 0x0, we have 32K size + * restore contents and exit + */ + if ( map_read32(&autcpu12_sram_map,0) != save0) { + map_write32(&autcpu12_sram_map,save0,0x0); + goto map; + } + /* We have a 128K found, restore 0x10000 and set size + * to 128K + */ + map_write32(&autcpu12_sram_map,save1,0x10000); + autcpu12_sram_map.size = SZ_128K; + +map: + sram_mtd = do_map_probe("map_ram", &autcpu12_sram_map); + if (!sram_mtd) { + printk("NV-RAM probe failed\n"); + err = -ENXIO; + goto out_ioremap; + } + + sram_mtd->owner = THIS_MODULE; + sram_mtd->erasesize = 16; + + if (add_mtd_device(sram_mtd)) { + printk("NV-RAM device addition failed\n"); + err = -ENOMEM; + goto out_probe; + } + + printk("NV-RAM device size %ldKiB registered on AUTCPU12\n",autcpu12_sram_map.size/SZ_1K); + + return 0; + +out_probe: + map_destroy(sram_mtd); + sram_mtd = 0; + +out_ioremap: + iounmap((void *)autcpu12_sram_map.virt); +out: + return err; +} + +static void __exit cleanup_autcpu12_maps(void) +{ + if (sram_mtd) { + del_mtd_device(sram_mtd); + map_destroy(sram_mtd); + iounmap((void *)autcpu12_sram_map.virt); + } +} + +module_init(init_autcpu12_sram); +module_exit(cleanup_autcpu12_maps); + +MODULE_AUTHOR("Thomas Gleixner"); +MODULE_DESCRIPTION("autcpu12 NV-RAM map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c new file mode 100644 index 00000000000..44de3a81b27 --- /dev/null +++ b/drivers/mtd/maps/bast-flash.c @@ -0,0 +1,227 @@ +/* linux/drivers/mtd/maps/bast_flash.c + * + * Copyright (c) 2004 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Simtec Bast (EB2410ITX) NOR MTD Mapping driver + * + * Changelog: + * 20-Sep-2004 BJD Initial version + * + * $Id: bast-flash.c,v 1.1 2004/09/21 14:29:04 bjd Exp $ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/device.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> +#include <asm/mach-types.h> +#include <asm/mach/flash.h> + +#include <asm/arch/map.h> +#include <asm/arch/bast-map.h> +#include <asm/arch/bast-cpld.h> + +#ifdef CONFIG_MTD_BAST_MAXSIZE +#define AREA_MAXSIZE (CONFIG_MTD_BAST_MAXSIZE * (1024*1024)) +#else +#define AREA_MAXSIZE (32*1024*1024) +#endif + +#define PFX "bast-flash: " + +struct bast_flash_info { + struct mtd_info *mtd; + struct map_info map; + struct mtd_partition *partitions; + struct resource *area; +}; + +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + +static struct bast_flash_info *to_bast_info(struct device *dev) +{ + return (struct bast_flash_info *)dev_get_drvdata(dev); +} + +static void bast_flash_setrw(int to) +{ + unsigned int val; + unsigned long flags; + + local_irq_save(flags); + val = __raw_readb(BAST_VA_CTRL3); + + if (to) + val |= BAST_CPLD_CTRL3_ROMWEN; + else + val &= ~BAST_CPLD_CTRL3_ROMWEN; + + pr_debug("new cpld ctrl3=%02x\n", val); + + __raw_writeb(val, BAST_VA_CTRL3); + local_irq_restore(flags); +} + +static int bast_flash_remove(struct device *dev) +{ + struct bast_flash_info *info = to_bast_info(dev); + + dev_set_drvdata(dev, NULL); + + if (info == NULL) + return 0; + + if (info->map.virt != NULL) + iounmap(info->map.virt); + + if (info->mtd) { + del_mtd_partitions(info->mtd); + map_destroy(info->mtd); + } + + if (info->partitions) + kfree(info->partitions); + + if (info->area) { + release_resource(info->area); + kfree(info->area); + } + + kfree(info); + + return 0; +} + +static int bast_flash_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct bast_flash_info *info; + struct resource *res; + int err = 0; + + info = kmalloc(sizeof(*info), GFP_KERNEL); + if (info == NULL) { + printk(KERN_ERR PFX "no memory for flash info\n"); + err = -ENOMEM; + goto exit_error; + } + + memzero(info, sizeof(*info)); + dev_set_drvdata(dev, info); + + res = pdev->resource; /* assume that the flash has one resource */ + + info->map.phys = res->start; + info->map.size = res->end - res->start + 1; + info->map.name = dev->bus_id; + info->map.bankwidth = 2; + + if (info->map.size > AREA_MAXSIZE) + info->map.size = AREA_MAXSIZE; + + pr_debug("%s: area %08lx, size %ld\n", __FUNCTION__, + info->map.phys, info->map.size); + + info->area = request_mem_region(res->start, info->map.size, + pdev->name); + if (info->area == NULL) { + printk(KERN_ERR PFX "cannot reserve flash memory region\n"); + err = -ENOENT; + goto exit_error; + } + + info->map.virt = ioremap(res->start, info->map.size); + pr_debug("%s: virt at %08x\n", __FUNCTION__, (int)info->map.virt); + + if (info->map.virt == 0) { + printk(KERN_ERR PFX "failed to ioremap() region\n"); + err = -EIO; + goto exit_error; + } + + simple_map_init(&info->map); + + /* enable the write to the flash area */ + + bast_flash_setrw(1); + + /* probe for the device(s) */ + + info->mtd = do_map_probe("jedec_probe", &info->map); + if (info->mtd == NULL) + info->mtd = do_map_probe("cfi_probe", &info->map); + + if (info->mtd == NULL) { + printk(KERN_ERR PFX "map_probe() failed\n"); + err = -ENXIO; + goto exit_error; + } + + /* mark ourselves as the owner */ + info->mtd->owner = THIS_MODULE; + + err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); + if (err > 0) { + err = add_mtd_partitions(info->mtd, info->partitions, err); + if (err) + printk(KERN_ERR PFX "cannot add/parse partitions\n"); + } + + if (err == 0) + return 0; + + /* fall through to exit error */ + + exit_error: + bast_flash_remove(dev); + return err; +} + +static struct device_driver bast_flash_driver = { + .name = "bast-nor", + .bus = &platform_bus_type, + .probe = bast_flash_probe, + .remove = bast_flash_remove, +}; + +static int __init bast_flash_init(void) +{ + printk("BAST NOR-Flash Driver, (c) 2004 Simtec Electronics\n"); + return driver_register(&bast_flash_driver); +} + +static void __exit bast_flash_exit(void) +{ + driver_unregister(&bast_flash_driver); +} + +module_init(bast_flash_init); +module_exit(bast_flash_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); +MODULE_DESCRIPTION("BAST MTD Map driver"); diff --git a/drivers/mtd/maps/beech-mtd.c b/drivers/mtd/maps/beech-mtd.c new file mode 100644 index 00000000000..5e79c9d5da2 --- /dev/null +++ b/drivers/mtd/maps/beech-mtd.c @@ -0,0 +1,112 @@ +/* + * $Id: beech-mtd.c,v 1.10 2004/11/04 13:24:14 gleixner Exp $ + * + * drivers/mtd/maps/beech-mtd.c MTD mappings and partition tables for + * IBM 405LP Beech boards. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (C) 2002, International Business Machines Corporation + * All Rights Reserved. + * + * Bishop Brock + * IBM Research, Austin Center for Low-Power Computing + * bcbrock@us.ibm.com + * March 2002 + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> +#include <asm/ibm4xx.h> + +#define NAME "Beech Linux Flash" +#define PADDR BEECH_BIGFLASH_PADDR +#define SIZE BEECH_BIGFLASH_SIZE +#define BUSWIDTH 1 + +/* Flash memories on these boards are memory resources, accessed big-endian. */ + + +static struct map_info beech_mtd_map = { + .name = NAME, + .size = SIZE, + .bankwidth = BUSWIDTH, + .phys = PADDR +}; + +static struct mtd_info *beech_mtd; + +static struct mtd_partition beech_partitions[2] = { + { + .name = "Linux Kernel", + .size = BEECH_KERNEL_SIZE, + .offset = BEECH_KERNEL_OFFSET + }, { + .name = "Free Area", + .size = BEECH_FREE_AREA_SIZE, + .offset = BEECH_FREE_AREA_OFFSET + } +}; + +static int __init +init_beech_mtd(void) +{ + printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); + + beech_mtd_map.virt = ioremap(PADDR, SIZE); + + if (!beech_mtd_map.virt) { + printk("%s: failed to ioremap 0x%x\n", NAME, PADDR); + return -EIO; + } + + simple_map_init(&beech_mtd_map); + + printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); + beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map); + + if (!beech_mtd) + return -ENXIO; + + beech_mtd->owner = THIS_MODULE; + + return add_mtd_partitions(beech_mtd, beech_partitions, 2); +} + +static void __exit +cleanup_beech_mtd(void) +{ + if (beech_mtd) { + del_mtd_partitions(beech_mtd); + map_destroy(beech_mtd); + iounmap((void *) beech_mtd_map.virt); + } +} + +module_init(init_beech_mtd); +module_exit(cleanup_beech_mtd); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Bishop Brock <bcbrock@us.ibm.com>"); +MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Beech boards"); diff --git a/drivers/mtd/maps/cdb89712.c b/drivers/mtd/maps/cdb89712.c new file mode 100644 index 00000000000..ab15dac2f93 --- /dev/null +++ b/drivers/mtd/maps/cdb89712.c @@ -0,0 +1,268 @@ +/* + * Flash on Cirrus CDB89712 + * + * $Id: cdb89712.c,v 1.10 2004/11/04 13:24:14 gleixner Exp $ + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + + + +static struct mtd_info *flash_mtd; + +struct map_info cdb89712_flash_map = { + .name = "flash", + .size = FLASH_SIZE, + .bankwidth = FLASH_WIDTH, + .phys = FLASH_START, +}; + +struct resource cdb89712_flash_resource = { + .name = "Flash", + .start = FLASH_START, + .end = FLASH_START + FLASH_SIZE - 1, + .flags = IORESOURCE_IO | IORESOURCE_BUSY, +}; + +static int __init init_cdb89712_flash (void) +{ + int err; + + if (request_resource (&ioport_resource, &cdb89712_flash_resource)) { + printk(KERN_NOTICE "Failed to reserve Cdb89712 FLASH space\n"); + err = -EBUSY; + goto out; + } + + cdb89712_flash_map.virt = ioremap(FLASH_START, FLASH_SIZE); + if (!cdb89712_flash_map.virt) { + printk(KERN_NOTICE "Failed to ioremap Cdb89712 FLASH space\n"); + err = -EIO; + goto out_resource; + } + simple_map_init(&cdb89712_flash_map); + flash_mtd = do_map_probe("cfi_probe", &cdb89712_flash_map); + if (!flash_mtd) { + flash_mtd = do_map_probe("map_rom", &cdb89712_flash_map); + if (flash_mtd) + flash_mtd->erasesize = 0x10000; + } + if (!flash_mtd) { + printk("FLASH probe failed\n"); + err = -ENXIO; + goto out_ioremap; + } + + flash_mtd->owner = THIS_MODULE; + + if (add_mtd_device(flash_mtd)) { + printk("FLASH device addition failed\n"); + err = -ENOMEM; + goto out_probe; + } + + return 0; + +out_probe: + map_destroy(flash_mtd); + flash_mtd = 0; +out_ioremap: + iounmap((void *)cdb89712_flash_map.virt); +out_resource: + release_resource (&cdb89712_flash_resource); +out: + return err; +} + + + + + +static struct mtd_info *sram_mtd; + +struct map_info cdb89712_sram_map = { + .name = "SRAM", + .size = SRAM_SIZE, + .bankwidth = SRAM_WIDTH, + .phys = SRAM_START, +}; + +struct resource cdb89712_sram_resource = { + .name = "SRAM", + .start = SRAM_START, + .end = SRAM_START + SRAM_SIZE - 1, + .flags = IORESOURCE_IO | IORESOURCE_BUSY, +}; + +static int __init init_cdb89712_sram (void) +{ + int err; + + if (request_resource (&ioport_resource, &cdb89712_sram_resource)) { + printk(KERN_NOTICE "Failed to reserve Cdb89712 SRAM space\n"); + err = -EBUSY; + goto out; + } + + cdb89712_sram_map.virt = ioremap(SRAM_START, SRAM_SIZE); + if (!cdb89712_sram_map.virt) { + printk(KERN_NOTICE "Failed to ioremap Cdb89712 SRAM space\n"); + err = -EIO; + goto out_resource; + } + simple_map_init(&cdb89712_sram_map); + sram_mtd = do_map_probe("map_ram", &cdb89712_sram_map); + if (!sram_mtd) { + printk("SRAM probe failed\n"); + err = -ENXIO; + goto out_ioremap; + } + + sram_mtd->owner = THIS_MODULE; + sram_mtd->erasesize = 16; + + if (add_mtd_device(sram_mtd)) { + printk("SRAM device addition failed\n"); + err = -ENOMEM; + goto out_probe; + } + + return 0; + +out_probe: + map_destroy(sram_mtd); + sram_mtd = 0; +out_ioremap: + iounmap((void *)cdb89712_sram_map.virt); +out_resource: + release_resource (&cdb89712_sram_resource); +out: + return err; +} + + + + + + + +static struct mtd_info *bootrom_mtd; + +struct map_info cdb89712_bootrom_map = { + .name = "BootROM", + .size = BOOTROM_SIZE, + .bankwidth = BOOTROM_WIDTH, + .phys = BOOTROM_START, +}; + +struct resource cdb89712_bootrom_resource = { + .name = "BootROM", + .start = BOOTROM_START, + .end = BOOTROM_START + BOOTROM_SIZE - 1, + .flags = IORESOURCE_IO | IORESOURCE_BUSY, +}; + +static int __init init_cdb89712_bootrom (void) +{ + int err; + + if (request_resource (&ioport_resource, &cdb89712_bootrom_resource)) { + printk(KERN_NOTICE "Failed to reserve Cdb89712 BOOTROM space\n"); + err = -EBUSY; + goto out; + } + + cdb89712_bootrom_map.virt = ioremap(BOOTROM_START, BOOTROM_SIZE); + if (!cdb89712_bootrom_map.virt) { + printk(KERN_NOTICE "Failed to ioremap Cdb89712 BootROM space\n"); + err = -EIO; + goto out_resource; + } + simple_map_init(&cdb89712_bootrom_map); + bootrom_mtd = do_map_probe("map_rom", &cdb89712_bootrom_map); + if (!bootrom_mtd) { + printk("BootROM probe failed\n"); + err = -ENXIO; + goto out_ioremap; + } + + bootrom_mtd->owner = THIS_MODULE; + bootrom_mtd->erasesize = 0x10000; + + if (add_mtd_device(bootrom_mtd)) { + printk("BootROM device addition failed\n"); + err = -ENOMEM; + goto out_probe; + } + + return 0; + +out_probe: + map_destroy(bootrom_mtd); + bootrom_mtd = 0; +out_ioremap: + iounmap((void *)cdb89712_bootrom_map.virt); +out_resource: + release_resource (&cdb89712_bootrom_resource); +out: + return err; +} + + + + + +static int __init init_cdb89712_maps(void) +{ + + printk(KERN_INFO "Cirrus CDB89712 MTD mappings:\n Flash 0x%x at 0x%x\n SRAM 0x%x at 0x%x\n BootROM 0x%x at 0x%x\n", + FLASH_SIZE, FLASH_START, SRAM_SIZE, SRAM_START, BOOTROM_SIZE, BOOTROM_START); + + init_cdb89712_flash(); + init_cdb89712_sram(); + init_cdb89712_bootrom(); + + return 0; +} + + +static void __exit cleanup_cdb89712_maps(void) +{ + if (sram_mtd) { + del_mtd_device(sram_mtd); + map_destroy(sram_mtd); + iounmap((void *)cdb89712_sram_map.virt); + release_resource (&cdb89712_sram_resource); + } + + if (flash_mtd) { + del_mtd_device(flash_mtd); + map_destroy(flash_mtd); + iounmap((void *)cdb89712_flash_map.virt); + release_resource (&cdb89712_flash_resource); + } + + if (bootrom_mtd) { + del_mtd_device(bootrom_mtd); + map_destroy(bootrom_mtd); + iounmap((void *)cdb89712_bootrom_map.virt); + release_resource (&cdb89712_bootrom_resource); + } +} + +module_init(init_cdb89712_maps); +module_exit(cleanup_cdb89712_maps); + +MODULE_AUTHOR("Ray L"); +MODULE_DESCRIPTION("ARM CDB89712 map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c new file mode 100644 index 00000000000..da8584a662f --- /dev/null +++ b/drivers/mtd/maps/ceiva.c @@ -0,0 +1,350 @@ +/* + * Ceiva flash memory driver. + * Copyright (C) 2002 Rob Scott <rscott@mtrob.fdns.net> + * + * Note: this driver supports jedec compatible devices. Modification + * for CFI compatible devices should be straight forward: change + * jedec_probe to cfi_probe. + * + * Based on: sa1100-flash.c, which has the following copyright: + * Flash memory access on SA11x0 based devices + * + * (C) 2000 Nicolas Pitre <nico@cam.org> + * + * $Id: ceiva.c,v 1.11 2004/09/16 23:27:12 gleixner Exp $ + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/ioport.h> +#include <linux/kernel.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/concat.h> + +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/io.h> +#include <asm/sizes.h> + +/* + * This isn't complete yet, so... + */ +#define CONFIG_MTD_CEIVA_STATICMAP + +#ifdef CONFIG_MTD_CEIVA_STATICMAP +/* + * See include/linux/mtd/partitions.h for definition of the mtd_partition + * structure. + * + * Please note: + * 1. The flash size given should be the largest flash size that can + * be accomodated. + * + * 2. The bus width must defined in clps_setup_flash. + * + * The MTD layer will detect flash chip aliasing and reduce the size of + * the map accordingly. + * + */ + +#ifdef CONFIG_ARCH_CEIVA +/* Flash / Partition sizing */ +/* For the 28F8003, we use the block mapping to calcuate the sizes */ +#define MAX_SIZE_KiB (16 + 8 + 8 + 96 + (7*128)) +#define BOOT_PARTITION_SIZE_KiB (16) +#define PARAMS_PARTITION_SIZE_KiB (8) +#define KERNEL_PARTITION_SIZE_KiB (4*128) +/* Use both remaing portion of first flash, and all of second flash */ +#define ROOT_PARTITION_SIZE_KiB (3*128) + (8*128) + +static struct mtd_partition ceiva_partitions[] = { + { + .name = "Ceiva BOOT partition", + .size = BOOT_PARTITION_SIZE_KiB*1024, + .offset = 0, + + },{ + .name = "Ceiva parameters partition", + .size = PARAMS_PARTITION_SIZE_KiB*1024, + .offset = (16 + 8) * 1024, + },{ + .name = "Ceiva kernel partition", + .size = (KERNEL_PARTITION_SIZE_KiB)*1024, + .offset = 0x20000, + + },{ + .name = "Ceiva root filesystem partition", + .offset = MTDPART_OFS_APPEND, + .size = (ROOT_PARTITION_SIZE_KiB)*1024, + } +}; +#endif + +static int __init clps_static_partitions(struct mtd_partition **parts) +{ + int nb_parts = 0; + +#ifdef CONFIG_ARCH_CEIVA + if (machine_is_ceiva()) { + *parts = ceiva_partitions; + nb_parts = ARRAY_SIZE(ceiva_partitions); + } +#endif + return nb_parts; +} +#endif + +struct clps_info { + unsigned long base; + unsigned long size; + int width; + void *vbase; + struct map_info *map; + struct mtd_info *mtd; + struct resource *res; +}; + +#define NR_SUBMTD 4 + +static struct clps_info info[NR_SUBMTD]; + +static int __init clps_setup_mtd(struct clps_info *clps, int nr, struct mtd_info **rmtd) +{ + struct mtd_info *subdev[nr]; + struct map_info *maps; + int i, found = 0, ret = 0; + + /* + * Allocate the map_info structs in one go. + */ + maps = kmalloc(sizeof(struct map_info) * nr, GFP_KERNEL); + if (!maps) + return -ENOMEM; + memset(maps, 0, sizeof(struct map_info) * nr); + /* + * Claim and then map the memory regions. + */ + for (i = 0; i < nr; i++) { + if (clps[i].base == (unsigned long)-1) + break; + + clps[i].res = request_mem_region(clps[i].base, clps[i].size, "clps flash"); + if (!clps[i].res) { + ret = -EBUSY; + break; + } + + clps[i].map = maps + i; + + clps[i].map->name = "clps flash"; + clps[i].map->phys = clps[i].base; + + clps[i].vbase = ioremap(clps[i].base, clps[i].size); + if (!clps[i].vbase) { + ret = -ENOMEM; + break; + } + + clps[i].map->virt = (void __iomem *)clps[i].vbase; + clps[i].map->bankwidth = clps[i].width; + clps[i].map->size = clps[i].size; + + simple_map_init(&clps[i].map); + + clps[i].mtd = do_map_probe("jedec_probe", clps[i].map); + if (clps[i].mtd == NULL) { + ret = -ENXIO; + break; + } + clps[i].mtd->owner = THIS_MODULE; + subdev[i] = clps[i].mtd; + + printk(KERN_INFO "clps flash: JEDEC device at 0x%08lx, %dMiB, " + "%d-bit\n", clps[i].base, clps[i].mtd->size >> 20, + clps[i].width * 8); + found += 1; + } + + /* + * ENXIO is special. It means we didn't find a chip when + * we probed. We need to tear down the mapping, free the + * resource and mark it as such. + */ + if (ret == -ENXIO) { + iounmap(clps[i].vbase); + clps[i].vbase = NULL; + release_resource(clps[i].res); + clps[i].res = NULL; + } + + /* + * If we found one device, don't bother with concat support. + * If we found multiple devices, use concat if we have it + * available, otherwise fail. + */ + if (ret == 0 || ret == -ENXIO) { + if (found == 1) { + *rmtd = subdev[0]; + ret = 0; + } else if (found > 1) { + /* + * We detected multiple devices. Concatenate + * them together. + */ +#ifdef CONFIG_MTD_CONCAT + *rmtd = mtd_concat_create(subdev, found, + "clps flash"); + if (*rmtd == NULL) + ret = -ENXIO; +#else + printk(KERN_ERR "clps flash: multiple devices " + "found but MTD concat support disabled.\n"); + ret = -ENXIO; +#endif + } + } + + /* + * If we failed, clean up. + */ + if (ret) { + do { + if (clps[i].mtd) + map_destroy(clps[i].mtd); + if (clps[i].vbase) + iounmap(clps[i].vbase); + if (clps[i].res) + release_resource(clps[i].res); + } while (i--); + + kfree(maps); + } + + return ret; +} + +static void __exit clps_destroy_mtd(struct clps_info *clps, struct mtd_info *mtd) +{ + int i; + + del_mtd_partitions(mtd); + + if (mtd != clps[0].mtd) + mtd_concat_destroy(mtd); + + for (i = NR_SUBMTD; i >= 0; i--) { + if (clps[i].mtd) + map_destroy(clps[i].mtd); + if (clps[i].vbase) + iounmap(clps[i].vbase); + if (clps[i].res) + release_resource(clps[i].res); + } + kfree(clps[0].map); +} + +/* + * We define the memory space, size, and width for the flash memory + * space here. + */ + +static int __init clps_setup_flash(void) +{ + int nr; + +#ifdef CONFIG_ARCH_CEIVA + if (machine_is_ceiva()) { + info[0].base = CS0_PHYS_BASE; + info[0].size = SZ_32M; + info[0].width = CEIVA_FLASH_WIDTH; + info[1].base = CS1_PHYS_BASE; + info[1].size = SZ_32M; + info[1].width = CEIVA_FLASH_WIDTH; + nr = 2; + } +#endif + return nr; +} + +static struct mtd_partition *parsed_parts; +static const char *probes[] = { "cmdlinepart", "RedBoot", NULL }; + +static void __init clps_locate_partitions(struct mtd_info *mtd) +{ + const char *part_type = NULL; + int nr_parts = 0; + do { + /* + * Partition selection stuff. + */ + nr_parts = parse_mtd_partitions(mtd, probes, &parsed_parts, 0); + if (nr_parts > 0) { + part_type = "command line"; + break; + } +#ifdef CONFIG_MTD_CEIVA_STATICMAP + nr_parts = clps_static_partitions(&parsed_parts); + if (nr_parts > 0) { + part_type = "static"; + break; + } + printk("found: %d partitions\n", nr_parts); +#endif + } while (0); + + if (nr_parts == 0) { + printk(KERN_NOTICE "clps flash: no partition info " + "available, registering whole flash\n"); + add_mtd_device(mtd); + } else { + printk(KERN_NOTICE "clps flash: using %s partition " + "definition\n", part_type); + add_mtd_partitions(mtd, parsed_parts, nr_parts); + } + + /* Always succeeds. */ +} + +static void __exit clps_destroy_partitions(void) +{ + if (parsed_parts) + kfree(parsed_parts); +} + +static struct mtd_info *mymtd; + +static int __init clps_mtd_init(void) +{ + int ret; + int nr; + + nr = clps_setup_flash(); + if (nr < 0) + return nr; + + ret = clps_setup_mtd(info, nr, &mymtd); + if (ret) + return ret; + + clps_locate_partitions(mymtd); + + return 0; +} + +static void __exit clps_mtd_cleanup(void) +{ + clps_destroy_mtd(info, mymtd); + clps_destroy_partitions(); +} + +module_init(clps_mtd_init); +module_exit(clps_mtd_cleanup); + +MODULE_AUTHOR("Rob Scott"); +MODULE_DESCRIPTION("Cirrus Logic JEDEC map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/cfi_flagadm.c b/drivers/mtd/maps/cfi_flagadm.c new file mode 100644 index 00000000000..f72e4f894b3 --- /dev/null +++ b/drivers/mtd/maps/cfi_flagadm.c @@ -0,0 +1,139 @@ +/* + * Copyright © 2001 Flaga hf. Medical Devices, Kári Davíðsson <kd@flaga.is> + * + * $Id: cfi_flagadm.c,v 1.14 2004/11/04 13:24:14 gleixner Exp $ + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + +/* We split the flash chip up into four parts. + * 1: bootloader firts 128k (0x00000000 - 0x0001FFFF) size 0x020000 + * 2: kernel 640k (0x00020000 - 0x000BFFFF) size 0x0A0000 + * 3: compressed 1536k root ramdisk (0x000C0000 - 0x0023FFFF) size 0x180000 + * 4: writeable diskpartition (jffs)(0x00240000 - 0x003FFFFF) size 0x1C0000 + */ + +#define FLASH_PHYS_ADDR 0x40000000 +#define FLASH_SIZE 0x400000 + +#define FLASH_PARTITION0_ADDR 0x00000000 +#define FLASH_PARTITION0_SIZE 0x00020000 + +#define FLASH_PARTITION1_ADDR 0x00020000 +#define FLASH_PARTITION1_SIZE 0x000A0000 + +#define FLASH_PARTITION2_ADDR 0x000C0000 +#define FLASH_PARTITION2_SIZE 0x00180000 + +#define FLASH_PARTITION3_ADDR 0x00240000 +#define FLASH_PARTITION3_SIZE 0x001C0000 + + +struct map_info flagadm_map = { + .name = "FlagaDM flash device", + .size = FLASH_SIZE, + .bankwidth = 2, +}; + +struct mtd_partition flagadm_parts[] = { + { + .name = "Bootloader", + .offset = FLASH_PARTITION0_ADDR, + .size = FLASH_PARTITION0_SIZE + }, + { + .name = "Kernel image", + .offset = FLASH_PARTITION1_ADDR, + .size = FLASH_PARTITION1_SIZE + }, + { + .name = "Initial ramdisk image", + .offset = FLASH_PARTITION2_ADDR, + .size = FLASH_PARTITION2_SIZE + }, + { + .name = "Persistant storage", + .offset = FLASH_PARTITION3_ADDR, + .size = FLASH_PARTITION3_SIZE + } +}; + +#define PARTITION_COUNT (sizeof(flagadm_parts)/sizeof(struct mtd_partition)) + +static struct mtd_info *mymtd; + +int __init init_flagadm(void) +{ + printk(KERN_NOTICE "FlagaDM flash device: %x at %x\n", + FLASH_SIZE, FLASH_PHYS_ADDR); + + flagadm_map.phys = FLASH_PHYS_ADDR; + flagadm_map.virt = ioremap(FLASH_PHYS_ADDR, + FLASH_SIZE); + + if (!flagadm_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + + simple_map_init(&flagadm_map); + + mymtd = do_map_probe("cfi_probe", &flagadm_map); + if (mymtd) { + mymtd->owner = THIS_MODULE; + add_mtd_partitions(mymtd, flagadm_parts, PARTITION_COUNT); + printk(KERN_NOTICE "FlagaDM flash device initialized\n"); + return 0; + } + + iounmap((void *)flagadm_map.virt); + return -ENXIO; +} + +static void __exit cleanup_flagadm(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + if (flagadm_map.virt) { + iounmap((void *)flagadm_map.virt); + flagadm_map.virt = 0; + } +} + +module_init(init_flagadm); +module_exit(cleanup_flagadm); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>"); +MODULE_DESCRIPTION("MTD map driver for Flaga digital module"); diff --git a/drivers/mtd/maps/cstm_mips_ixx.c b/drivers/mtd/maps/cstm_mips_ixx.c new file mode 100644 index 00000000000..ae9252fbf17 --- /dev/null +++ b/drivers/mtd/maps/cstm_mips_ixx.c @@ -0,0 +1,270 @@ +/* + * $Id: cstm_mips_ixx.c,v 1.12 2004/11/04 13:24:14 gleixner Exp $ + * + * Mapping of a custom board with both AMD CFI and JEDEC flash in partitions. + * Config with both CFI and JEDEC device support. + * + * Basically physmap.c with the addition of partitions and + * an array of mapping info to accomodate more than one flash type per board. + * + * Copyright 2000 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <linux/delay.h> + +#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) +#define CC_GCR 0xB4013818 +#define CC_GPBCR 0xB401380A +#define CC_GPBDR 0xB4013808 +#define CC_M68K_DEVICE 1 +#define CC_M68K_FUNCTION 6 +#define CC_CONFADDR 0xB8004000 +#define CC_CONFDATA 0xB8004004 +#define CC_FC_FCR 0xB8002004 +#define CC_FC_DCR 0xB8002008 +#define CC_GPACR 0xB4013802 +#define CC_GPAICR 0xB4013804 +#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ + +#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) +void cstm_mips_ixx_set_vpp(struct map_info *map,int vpp) +{ + static DEFINE_SPINLOCK(vpp_lock); + static int vpp_count = 0; + unsigned long flags; + + spin_lock_irqsave(&vpp_lock, flags); + + if (vpp) { + if (!vpp_count++) { + __u16 data; + __u8 data1; + static u8 first = 1; + + // Set GPIO port B pin3 to high + data = *(__u16 *)(CC_GPBCR); + data = (data & 0xff0f) | 0x0040; + *(__u16 *)CC_GPBCR = data; + *(__u8 *)CC_GPBDR = (*(__u8*)CC_GPBDR) | 0x08; + if (first) { + first = 0; + /* need to have this delay for first + enabling vpp after powerup */ + udelay(40); + } + } + } else { + if (!--vpp_count) { + __u16 data; + + // Set GPIO port B pin3 to high + data = *(__u16 *)(CC_GPBCR); + data = (data & 0xff3f) | 0x0040; + *(__u16 *)CC_GPBCR = data; + *(__u8 *)CC_GPBDR = (*(__u8*)CC_GPBDR) & 0xf7; + } + } + spin_unlock_irqrestore(&vpp_lock, flags); +} +#endif + +/* board and partition description */ + +#define MAX_PHYSMAP_PARTITIONS 8 +struct cstm_mips_ixx_info { + char *name; + unsigned long window_addr; + unsigned long window_size; + int bankwidth; + int num_partitions; +}; + +#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) +#define PHYSMAP_NUMBER 1 // number of board desc structs needed, one per contiguous flash type +const struct cstm_mips_ixx_info cstm_mips_ixx_board_desc[PHYSMAP_NUMBER] = +{ + { // 28F128J3A in 2x16 configuration + "big flash", // name + 0x08000000, // window_addr + 0x02000000, // window_size + 4, // bankwidth + 1, // num_partitions + } + +}; +static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = { +{ // 28F128J3A in 2x16 configuration + { + .name = "main partition ", + .size = 0x02000000, // 128 x 2 x 128k byte sectors + .offset = 0, + }, +}, +}; +#else /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ +#define PHYSMAP_NUMBER 1 // number of board desc structs needed, one per contiguous flash type +const struct cstm_mips_ixx_info cstm_mips_ixx_board_desc[PHYSMAP_NUMBER] = +{ + { + "MTD flash", // name + CONFIG_MTD_CSTM_MIPS_IXX_START, // window_addr + CONFIG_MTD_CSTM_MIPS_IXX_LEN, // window_size + CONFIG_MTD_CSTM_MIPS_IXX_BUSWIDTH, // bankwidth + 1, // num_partitions + }, + +}; +static struct mtd_partition cstm_mips_ixx_partitions[PHYSMAP_NUMBER][MAX_PHYSMAP_PARTITIONS] = { +{ + { + .name = "main partition", + .size = CONFIG_MTD_CSTM_MIPS_IXX_LEN, + .offset = 0, + }, +}, +}; +#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ + +struct map_info cstm_mips_ixx_map[PHYSMAP_NUMBER]; + +int __init init_cstm_mips_ixx(void) +{ + int i; + int jedec; + struct mtd_info *mymtd; + struct mtd_partition *parts; + + /* Initialize mapping */ + for (i=0;i<PHYSMAP_NUMBER;i++) { + printk(KERN_NOTICE "cstm_mips_ixx flash device: 0x%lx at 0x%lx\n", + cstm_mips_ixx_board_desc[i].window_size, cstm_mips_ixx_board_desc[i].window_addr); + + + cstm_mips_ixx_map[i].phys = cstm_mips_ixx_board_desc[i].window_addr; + cstm_mips_ixx_map[i].virt = ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size); + if (!cstm_mips_ixx_map[i].virt) { + printk(KERN_WARNING "Failed to ioremap\n"); + return -EIO; + } + cstm_mips_ixx_map[i].name = cstm_mips_ixx_board_desc[i].name; + cstm_mips_ixx_map[i].size = cstm_mips_ixx_board_desc[i].window_size; + cstm_mips_ixx_map[i].bankwidth = cstm_mips_ixx_board_desc[i].bankwidth; +#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) + cstm_mips_ixx_map[i].set_vpp = cstm_mips_ixx_set_vpp; +#endif + simple_map_init(&cstm_mips_ixx_map[i]); + //printk(KERN_NOTICE "cstm_mips_ixx: ioremap is %x\n",(unsigned int)(cstm_mips_ixx_map[i].virt)); + } + +#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) + setup_ITE_IVR_flash(); +#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ + + for (i=0;i<PHYSMAP_NUMBER;i++) { + parts = &cstm_mips_ixx_partitions[i][0]; + jedec = 0; + mymtd = (struct mtd_info *)do_map_probe("cfi_probe", &cstm_mips_ixx_map[i]); + //printk(KERN_NOTICE "phymap %d cfi_probe: mymtd is %x\n",i,(unsigned int)mymtd); + if (!mymtd) { + jedec = 1; + mymtd = (struct mtd_info *)do_map_probe("jedec", &cstm_mips_ixx_map[i]); + printk(KERN_NOTICE "cstm_mips_ixx %d jedec: mymtd is %x\n",i,(unsigned int)mymtd); + } + if (mymtd) { + mymtd->owner = THIS_MODULE; + + cstm_mips_ixx_map[i].map_priv_2 = (unsigned long)mymtd; + add_mtd_partitions(mymtd, parts, cstm_mips_ixx_board_desc[i].num_partitions); + } + else + return -ENXIO; + } + return 0; +} + +static void __exit cleanup_cstm_mips_ixx(void) +{ + int i; + struct mtd_info *mymtd; + + for (i=0;i<PHYSMAP_NUMBER;i++) { + mymtd = (struct mtd_info *)cstm_mips_ixx_map[i].map_priv_2; + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + if (cstm_mips_ixx_map[i].virt) { + iounmap((void *)cstm_mips_ixx_map[i].virt); + cstm_mips_ixx_map[i].virt = 0; + } + } +} +#if defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) +void PCISetULongByOffset(__u32 DevNumber, __u32 FuncNumber, __u32 Offset, __u32 data) +{ + __u32 offset; + + offset = ( unsigned long )( 0x80000000 | ( DevNumber << 11 ) + ( FuncNumber << 8 ) + Offset) ; + + *(__u32 *)CC_CONFADDR = offset; + *(__u32 *)CC_CONFDATA = data; +} +void setup_ITE_IVR_flash() +{ + __u32 size, base; + + size = 0x0e000000; // 32MiB + base = (0x08000000) >> 8 >>1; // Bug: we must shift one more bit + + /* need to set ITE flash to 32 bits instead of default 8 */ +#ifdef CONFIG_MIPS_IVR + *(__u32 *)CC_FC_FCR = 0x55; + *(__u32 *)CC_GPACR = 0xfffc; +#else + *(__u32 *)CC_FC_FCR = 0x77; +#endif + /* turn bursting off */ + *(__u32 *)CC_FC_DCR = 0x0; + + /* setup for one chip 4 byte PCI access */ + PCISetULongByOffset(CC_M68K_DEVICE, CC_M68K_FUNCTION, 0x60, size | base); + PCISetULongByOffset(CC_M68K_DEVICE, CC_M68K_FUNCTION, 0x64, 0x02); +} +#endif /* defined(CONFIG_MIPS_ITE8172) || defined(CONFIG_MIPS_IVR) */ + +module_init(init_cstm_mips_ixx); +module_exit(cleanup_cstm_mips_ixx); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>"); +MODULE_DESCRIPTION("MTD map driver for ITE 8172G and Globespan IVR boards"); diff --git a/drivers/mtd/maps/db1550-flash.c b/drivers/mtd/maps/db1550-flash.c new file mode 100644 index 00000000000..d213888462a --- /dev/null +++ b/drivers/mtd/maps/db1550-flash.c @@ -0,0 +1,187 @@ +/* + * Flash memory access on Alchemy Db1550 board + * + * $Id: db1550-flash.c,v 1.7 2004/11/04 13:24:14 gleixner Exp $ + * + * (C) 2004 Embedded Edge, LLC, based on db1550-flash.c: + * (C) 2003, 2004 Pete Popov <ppopov@embeddedalley.com> + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> + +#ifdef DEBUG_RW +#define DBG(x...) printk(x) +#else +#define DBG(x...) +#endif + +static unsigned long window_addr; +static unsigned long window_size; + + +static struct map_info db1550_map = { + .name = "Db1550 flash", +}; + +static unsigned char flash_bankwidth = 4; + +/* + * Support only 64MB NOR Flash parts + */ + +#if defined(CONFIG_MTD_DB1550_BOOT) && defined(CONFIG_MTD_DB1550_USER) +#define DB1550_BOTH_BANKS +#elif defined(CONFIG_MTD_DB1550_BOOT) && !defined(CONFIG_MTD_DB1550_USER) +#define DB1550_BOOT_ONLY +#elif !defined(CONFIG_MTD_DB1550_BOOT) && defined(CONFIG_MTD_DB1550_USER) +#define DB1550_USER_ONLY +#endif + +#ifdef DB1550_BOTH_BANKS +/* both banks will be used. Combine the first bank and the first + * part of the second bank together into a single jffs/jffs2 + * partition. + */ +static struct mtd_partition db1550_partitions[] = { + /* assume boot[2:0]:swap is '0000' or '1000', which translates to: + * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash + * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash + */ + { + .name = "User FS", + .size = (0x1FC00000 - 0x18000000), + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = (0x300000 - 0x40000), /* last 256KB is yamon env */ + .offset = MTDPART_OFS_APPEND, + } +}; +#elif defined(DB1550_BOOT_ONLY) +static struct mtd_partition db1550_partitions[] = { + /* assume boot[2:0]:swap is '0000' or '1000', which translates to: + * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash + */ + { + .name = "User FS", + .size = 0x03c00000, + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = (0x300000-0x40000), /* last 256KB is yamon env */ + .offset = MTDPART_OFS_APPEND, + } +}; +#elif defined(DB1550_USER_ONLY) +static struct mtd_partition db1550_partitions[] = { + /* assume boot[2:0]:swap is '0000' or '1000', which translates to: + * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash + */ + { + .name = "User FS", + .size = (0x4000000 - 0x200000), /* reserve 2MB for raw kernel */ + .offset = 0x0000000 + },{ + .name = "raw kernel", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; +#else +#error MTD_DB1550 define combo error /* should never happen */ +#endif + +#define NB_OF(x) (sizeof(x)/sizeof(x[0])) + +static struct mtd_info *mymtd; + +/* + * Probe the flash density and setup window address and size + * based on user CONFIG options. There are times when we don't + * want the MTD driver to be probing the boot or user flash, + * so having the option to enable only one bank is important. + */ +int setup_flash_params(void) +{ +#if defined(DB1550_BOTH_BANKS) + window_addr = 0x18000000; + window_size = 0x8000000; +#elif defined(DB1550_BOOT_ONLY) + window_addr = 0x1C000000; + window_size = 0x4000000; +#else /* USER ONLY */ + window_addr = 0x18000000; + window_size = 0x4000000; +#endif + return 0; +} + +int __init db1550_mtd_init(void) +{ + struct mtd_partition *parts; + int nb_parts = 0; + + /* Default flash bankwidth */ + db1550_map.bankwidth = flash_bankwidth; + + if (setup_flash_params()) + return -ENXIO; + + /* + * Static partition definition selection + */ + parts = db1550_partitions; + nb_parts = NB_OF(db1550_partitions); + db1550_map.size = window_size; + + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + printk(KERN_NOTICE "Db1550 flash: probing %d-bit flash bus\n", + db1550_map.bankwidth*8); + db1550_map.virt = ioremap(window_addr, window_size); + mymtd = do_map_probe("cfi_probe", &db1550_map); + if (!mymtd) return -ENXIO; + mymtd->owner = THIS_MODULE; + + add_mtd_partitions(mymtd, parts, nb_parts); + return 0; +} + +static void __exit db1550_mtd_cleanup(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + iounmap((void *) db1550_map.virt); + } +} + +module_init(db1550_mtd_init); +module_exit(db1550_mtd_cleanup); + +MODULE_AUTHOR("Embedded Edge, LLC"); +MODULE_DESCRIPTION("Db1550 mtd map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/db1x00-flash.c b/drivers/mtd/maps/db1x00-flash.c new file mode 100644 index 00000000000..faa68ec5690 --- /dev/null +++ b/drivers/mtd/maps/db1x00-flash.c @@ -0,0 +1,226 @@ +/* + * Flash memory access on Alchemy Db1xxx boards + * + * $Id: db1x00-flash.c,v 1.6 2004/11/04 13:24:14 gleixner Exp $ + * + * (C) 2003 Pete Popov <ppopov@embeddedalley.com> + * + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> + +#ifdef DEBUG_RW +#define DBG(x...) printk(x) +#else +#define DBG(x...) +#endif + +/* MTD CONFIG OPTIONS */ +#if defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER) +#define DB1X00_BOTH_BANKS +#elif defined(CONFIG_MTD_DB1X00_BOOT) && !defined(CONFIG_MTD_DB1X00_USER) +#define DB1X00_BOOT_ONLY +#elif !defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER) +#define DB1X00_USER_ONLY +#endif + +static unsigned long window_addr; +static unsigned long window_size; +static unsigned long flash_size; + +static unsigned short *bcsr = (unsigned short *)0xAE000000; +static unsigned char flash_bankwidth = 4; + +/* + * The Db1x boards support different flash densities. We setup + * the mtd_partition structures below for default of 64Mbit + * flash densities, and override the partitions sizes, if + * necessary, after we check the board status register. + */ + +#ifdef DB1X00_BOTH_BANKS +/* both banks will be used. Combine the first bank and the first + * part of the second bank together into a single jffs/jffs2 + * partition. + */ +static struct mtd_partition db1x00_partitions[] = { + { + .name = "User FS", + .size = 0x1c00000, + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = (0x300000-0x40000), /* last 256KB is env */ + .offset = MTDPART_OFS_APPEND, + } +}; +#elif defined(DB1X00_BOOT_ONLY) +static struct mtd_partition db1x00_partitions[] = { + { + .name = "User FS", + .size = 0x00c00000, + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = (0x300000-0x40000), /* last 256KB is env */ + .offset = MTDPART_OFS_APPEND, + } +}; +#elif defined(DB1X00_USER_ONLY) +static struct mtd_partition db1x00_partitions[] = { + { + .name = "User FS", + .size = 0x0e00000, + .offset = 0x0000000 + },{ + .name = "raw kernel", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; +#else +#error MTD_DB1X00 define combo error /* should never happen */ +#endif +#define NB_OF(x) (sizeof(x)/sizeof(x[0])) + +#define NAME "Db1x00 Linux Flash" + +static struct map_info db1xxx_mtd_map = { + .name = NAME, +}; + +static struct mtd_partition *parsed_parts; +static struct mtd_info *db1xxx_mtd; + +/* + * Probe the flash density and setup window address and size + * based on user CONFIG options. There are times when we don't + * want the MTD driver to be probing the boot or user flash, + * so having the option to enable only one bank is important. + */ +int setup_flash_params(void) +{ + switch ((bcsr[2] >> 14) & 0x3) { + case 0: /* 64Mbit devices */ + flash_size = 0x800000; /* 8MB per part */ +#if defined(DB1X00_BOTH_BANKS) + window_addr = 0x1E000000; + window_size = 0x2000000; +#elif defined(DB1X00_BOOT_ONLY) + window_addr = 0x1F000000; + window_size = 0x1000000; +#else /* USER ONLY */ + window_addr = 0x1E000000; + window_size = 0x1000000; +#endif + break; + case 1: + /* 128 Mbit devices */ + flash_size = 0x1000000; /* 16MB per part */ +#if defined(DB1X00_BOTH_BANKS) + window_addr = 0x1C000000; + window_size = 0x4000000; + /* USERFS from 0x1C00 0000 to 0x1FC0 0000 */ + db1x00_partitions[0].size = 0x3C00000; +#elif defined(DB1X00_BOOT_ONLY) + window_addr = 0x1E000000; + window_size = 0x2000000; + /* USERFS from 0x1E00 0000 to 0x1FC0 0000 */ + db1x00_partitions[0].size = 0x1C00000; +#else /* USER ONLY */ + window_addr = 0x1C000000; + window_size = 0x2000000; + /* USERFS from 0x1C00 0000 to 0x1DE00000 */ + db1x00_partitions[0].size = 0x1DE0000; +#endif + break; + case 2: + /* 256 Mbit devices */ + flash_size = 0x4000000; /* 64MB per part */ +#if defined(DB1X00_BOTH_BANKS) + return 1; +#elif defined(DB1X00_BOOT_ONLY) + /* Boot ROM flash bank only; no user bank */ + window_addr = 0x1C000000; + window_size = 0x4000000; + /* USERFS from 0x1C00 0000 to 0x1FC00000 */ + db1x00_partitions[0].size = 0x3C00000; +#else /* USER ONLY */ + return 1; +#endif + break; + default: + return 1; + } + db1xxx_mtd_map.size = window_size; + db1xxx_mtd_map.bankwidth = flash_bankwidth; + db1xxx_mtd_map.phys = window_addr; + db1xxx_mtd_map.bankwidth = flash_bankwidth; + return 0; +} + +int __init db1x00_mtd_init(void) +{ + struct mtd_partition *parts; + int nb_parts = 0; + + if (setup_flash_params()) + return -ENXIO; + + /* + * Static partition definition selection + */ + parts = db1x00_partitions; + nb_parts = NB_OF(db1x00_partitions); + + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + printk(KERN_NOTICE "Db1xxx flash: probing %d-bit flash bus\n", + db1xxx_mtd_map.bankwidth*8); + db1xxx_mtd_map.virt = ioremap(window_addr, window_size); + db1xxx_mtd = do_map_probe("cfi_probe", &db1xxx_mtd_map); + if (!db1xxx_mtd) return -ENXIO; + db1xxx_mtd->owner = THIS_MODULE; + + add_mtd_partitions(db1xxx_mtd, parts, nb_parts); + return 0; +} + +static void __exit db1x00_mtd_cleanup(void) +{ + if (db1xxx_mtd) { + del_mtd_partitions(db1xxx_mtd); + map_destroy(db1xxx_mtd); + if (parsed_parts) + kfree(parsed_parts); + } +} + +module_init(db1x00_mtd_init); +module_exit(db1x00_mtd_cleanup); + +MODULE_AUTHOR("Pete Popov"); +MODULE_DESCRIPTION("Db1x00 mtd map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c new file mode 100644 index 00000000000..d850a27a4b5 --- /dev/null +++ b/drivers/mtd/maps/dbox2-flash.c @@ -0,0 +1,126 @@ +/* + * $Id: dbox2-flash.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $ + * + * D-Box 2 flash driver + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <linux/errno.h> + +/* partition_info gives details on the logical partitions that the split the + * single flash device into. If the size if zero we use up to the end of the + * device. */ +static struct mtd_partition partition_info[]= { + { + .name = "BR bootloader", + .size = 128 * 1024, + .offset = 0, + .mask_flags = MTD_WRITEABLE + }, + { + .name = "FLFS (U-Boot)", + .size = 128 * 1024, + .offset = MTDPART_OFS_APPEND, + .mask_flags = 0 + }, + { + .name = "Root (SquashFS)", + .size = 7040 * 1024, + .offset = MTDPART_OFS_APPEND, + .mask_flags = 0 + }, + { + .name = "var (JFFS2)", + .size = 896 * 1024, + .offset = MTDPART_OFS_APPEND, + .mask_flags = 0 + }, + { + .name = "Flash without bootloader", + .size = MTDPART_SIZ_FULL, + .offset = 128 * 1024, + .mask_flags = 0 + }, + { + .name = "Complete Flash", + .size = MTDPART_SIZ_FULL, + .offset = 0, + .mask_flags = MTD_WRITEABLE + } +}; + +#define NUM_PARTITIONS (sizeof(partition_info) / sizeof(partition_info[0])) + +#define WINDOW_ADDR 0x10000000 +#define WINDOW_SIZE 0x800000 + +static struct mtd_info *mymtd; + + +struct map_info dbox2_flash_map = { + .name = "D-Box 2 flash memory", + .size = WINDOW_SIZE, + .bankwidth = 4, + .phys = WINDOW_ADDR, +}; + +int __init init_dbox2_flash(void) +{ + printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR); + dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); + + if (!dbox2_flash_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + simple_map_init(&dbox2_flash_map); + + // Probe for dual Intel 28F320 or dual AMD + mymtd = do_map_probe("cfi_probe", &dbox2_flash_map); + if (!mymtd) { + // Probe for single Intel 28F640 + dbox2_flash_map.bankwidth = 2; + + mymtd = do_map_probe("cfi_probe", &dbox2_flash_map); + } + + if (mymtd) { + mymtd->owner = THIS_MODULE; + + /* Create MTD devices for each partition. */ + add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); + + return 0; + } + + iounmap((void *)dbox2_flash_map.virt); + return -ENXIO; +} + +static void __exit cleanup_dbox2_flash(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + if (dbox2_flash_map.virt) { + iounmap((void *)dbox2_flash_map.virt); + dbox2_flash_map.virt = 0; + } +} + +module_init(init_dbox2_flash); +module_exit(cleanup_dbox2_flash); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Kári Davíðsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>"); +MODULE_DESCRIPTION("MTD map driver for D-Box 2 board"); diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c new file mode 100644 index 00000000000..938c41f2f05 --- /dev/null +++ b/drivers/mtd/maps/dc21285.c @@ -0,0 +1,253 @@ +/* + * MTD map driver for flash on the DC21285 (the StrongARM-110 companion chip) + * + * (C) 2000 Nicolas Pitre <nico@cam.org> + * + * This code is GPL + * + * $Id: dc21285.c,v 1.22 2004/11/01 13:39:21 rmk Exp $ + */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> +#include <asm/hardware/dec21285.h> +#include <asm/mach-types.h> + + +static struct mtd_info *dc21285_mtd; + +#ifdef CONFIG_ARCH_NETWINDER +/* + * This is really ugly, but it seams to be the only + * realiable way to do it, as the cpld state machine + * is unpredictible. So we have a 25us penalty per + * write access. + */ +static void nw_en_write(void) +{ + extern spinlock_t gpio_lock; + unsigned long flags; + + /* + * we want to write a bit pattern XXX1 to Xilinx to enable + * the write gate, which will be open for about the next 2ms. + */ + spin_lock_irqsave(&gpio_lock, flags); + cpld_modify(1, 1); + spin_unlock_irqrestore(&gpio_lock, flags); + + /* + * let the ISA bus to catch on... + */ + udelay(25); +} +#else +#define nw_en_write() do { } while (0) +#endif + +static map_word dc21285_read8(struct map_info *map, unsigned long ofs) +{ + map_word val; + val.x[0] = *(uint8_t*)(map->virt + ofs); + return val; +} + +static map_word dc21285_read16(struct map_info *map, unsigned long ofs) +{ + map_word val; + val.x[0] = *(uint16_t*)(map->virt + ofs); + return val; +} + +static map_word dc21285_read32(struct map_info *map, unsigned long ofs) +{ + map_word val; + val.x[0] = *(uint32_t*)(map->virt + ofs); + return val; +} + +static void dc21285_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + memcpy(to, (void*)(map->virt + from), len); +} + +static void dc21285_write8(struct map_info *map, const map_word d, unsigned long adr) +{ + if (machine_is_netwinder()) + nw_en_write(); + *CSR_ROMWRITEREG = adr & 3; + adr &= ~3; + *(uint8_t*)(map->virt + adr) = d.x[0]; +} + +static void dc21285_write16(struct map_info *map, const map_word d, unsigned long adr) +{ + if (machine_is_netwinder()) + nw_en_write(); + *CSR_ROMWRITEREG = adr & 3; + adr &= ~3; + *(uint16_t*)(map->virt + adr) = d.x[0]; +} + +static void dc21285_write32(struct map_info *map, const map_word d, unsigned long adr) +{ + if (machine_is_netwinder()) + nw_en_write(); + *(uint32_t*)(map->virt + adr) = d.x[0]; +} + +static void dc21285_copy_to_32(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + while (len > 0) { + map_word d; + d.x[0] = *((uint32_t*)from)++; + dc21285_write32(map, d, to); + to += 4; + len -= 4; + } +} + +static void dc21285_copy_to_16(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + while (len > 0) { + map_word d; + d.x[0] = *((uint16_t*)from)++; + dc21285_write16(map, d, to); + to += 2; + len -= 2; + } +} + +static void dc21285_copy_to_8(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + map_word d; + d.x[0] = *((uint8_t*)from)++; + dc21285_write8(map, d, to); + to++; + len--; +} + +static struct map_info dc21285_map = { + .name = "DC21285 flash", + .phys = NO_XIP, + .size = 16*1024*1024, + .copy_from = dc21285_copy_from, +}; + + +/* Partition stuff */ +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition *dc21285_parts; +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; +#endif + +static int __init init_dc21285(void) +{ + +#ifdef CONFIG_MTD_PARTITIONS + int nrparts; +#endif + + /* Determine bankwidth */ + switch (*CSR_SA110_CNTL & (3<<14)) { + case SA110_CNTL_ROMWIDTH_8: + dc21285_map.bankwidth = 1; + dc21285_map.read = dc21285_read8; + dc21285_map.write = dc21285_write8; + dc21285_map.copy_to = dc21285_copy_to_8; + break; + case SA110_CNTL_ROMWIDTH_16: + dc21285_map.bankwidth = 2; + dc21285_map.read = dc21285_read16; + dc21285_map.write = dc21285_write16; + dc21285_map.copy_to = dc21285_copy_to_16; + break; + case SA110_CNTL_ROMWIDTH_32: + dc21285_map.bankwidth = 4; + dc21285_map.read = dc21285_read32; + dc21285_map.write = dc21285_write32; + dc21285_map.copy_to = dc21285_copy_to_32; + break; + default: + printk (KERN_ERR "DC21285 flash: undefined bankwidth\n"); + return -ENXIO; + } + printk (KERN_NOTICE "DC21285 flash support (%d-bit bankwidth)\n", + dc21285_map.bankwidth*8); + + /* Let's map the flash area */ + dc21285_map.virt = ioremap(DC21285_FLASH, 16*1024*1024); + if (!dc21285_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + + if (machine_is_ebsa285()) { + dc21285_mtd = do_map_probe("cfi_probe", &dc21285_map); + } else { + dc21285_mtd = do_map_probe("jedec_probe", &dc21285_map); + } + + if (!dc21285_mtd) { + iounmap(dc21285_map.virt); + return -ENXIO; + } + + dc21285_mtd->owner = THIS_MODULE; + +#ifdef CONFIG_MTD_PARTITIONS + nrparts = parse_mtd_partitions(dc21285_mtd, probes, &dc21285_parts, 0); + if (nrparts > 0) + add_mtd_partitions(dc21285_mtd, dc21285_parts, nrparts); + else +#endif + add_mtd_device(dc21285_mtd); + + if(machine_is_ebsa285()) { + /* + * Flash timing is determined with bits 19-16 of the + * CSR_SA110_CNTL. The value is the number of wait cycles, or + * 0 for 16 cycles (the default). Cycles are 20 ns. + * Here we use 7 for 140 ns flash chips. + */ + /* access time */ + *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x000f0000) | (7 << 16)); + /* burst time */ + *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x00f00000) | (7 << 20)); + /* tristate time */ + *CSR_SA110_CNTL = ((*CSR_SA110_CNTL & ~0x0f000000) | (7 << 24)); + } + + return 0; +} + +static void __exit cleanup_dc21285(void) +{ +#ifdef CONFIG_MTD_PARTITIONS + if (dc21285_parts) { + del_mtd_partitions(dc21285_mtd); + kfree(dc21285_parts); + } else +#endif + del_mtd_device(dc21285_mtd); + + map_destroy(dc21285_mtd); + iounmap(dc21285_map.virt); +} + +module_init(init_dc21285); +module_exit(cleanup_dc21285); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>"); +MODULE_DESCRIPTION("MTD map driver for DC21285 boards"); diff --git a/drivers/mtd/maps/dilnetpc.c b/drivers/mtd/maps/dilnetpc.c new file mode 100644 index 00000000000..0bc79c93a58 --- /dev/null +++ b/drivers/mtd/maps/dilnetpc.c @@ -0,0 +1,495 @@ +/* dilnetpc.c -- MTD map driver for SSV DIL/Net PC Boards "DNP" and "ADNP" + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * $Id: dilnetpc.c,v 1.17 2004/11/28 09:40:39 dwmw2 Exp $ + * + * The DIL/Net PC is a tiny embedded PC board made by SSV Embedded Systems + * featuring the AMD Elan SC410 processor. There are two variants of this + * board: DNP/1486 and ADNP/1486. The DNP version has 2 megs of flash + * ROM (Intel 28F016S3) and 8 megs of DRAM, the ADNP version has 4 megs + * flash and 16 megs of RAM. + * For details, see http://www.ssv-embedded.de/ssv/pc104/p169.htm + * and http://www.ssv-embedded.de/ssv/pc104/p170.htm + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/concat.h> + +/* +** The DIL/NetPC keeps its BIOS in two distinct flash blocks. +** Destroying any of these blocks transforms the DNPC into +** a paperweight (albeit not a very useful one, considering +** it only weighs a few grams). +** +** Therefore, the BIOS blocks must never be erased or written to +** except by people who know exactly what they are doing (e.g. +** to install a BIOS update). These partitions are marked read-only +** by default, but can be made read/write by undefining +** DNPC_BIOS_BLOCKS_WRITEPROTECTED: +*/ +#define DNPC_BIOS_BLOCKS_WRITEPROTECTED + +/* +** The ID string (in ROM) is checked to determine whether we +** are running on a DNP/1486 or ADNP/1486 +*/ +#define BIOSID_BASE 0x000fe100 + +#define ID_DNPC "DNP1486" +#define ID_ADNP "ADNP1486" + +/* +** Address where the flash should appear in CPU space +*/ +#define FLASH_BASE 0x2000000 + +/* +** Chip Setup and Control (CSC) indexed register space +*/ +#define CSC_INDEX 0x22 +#define CSC_DATA 0x23 + +#define CSC_MMSWAR 0x30 /* MMS window C-F attributes register */ +#define CSC_MMSWDSR 0x31 /* MMS window C-F device select register */ + +#define CSC_RBWR 0xa7 /* GPIO Read-Back/Write Register B */ + +#define CSC_CR 0xd0 /* internal I/O device disable/Echo */ + /* Z-bus/configuration register */ + +#define CSC_PCCMDCR 0xf1 /* PC card mode and DMA control register */ + + +/* +** PC Card indexed register space: +*/ + +#define PCC_INDEX 0x3e0 +#define PCC_DATA 0x3e1 + +#define PCC_AWER_B 0x46 /* Socket B Address Window enable register */ +#define PCC_MWSAR_1_Lo 0x58 /* memory window 1 start address low register */ +#define PCC_MWSAR_1_Hi 0x59 /* memory window 1 start address high register */ +#define PCC_MWEAR_1_Lo 0x5A /* memory window 1 stop address low register */ +#define PCC_MWEAR_1_Hi 0x5B /* memory window 1 stop address high register */ +#define PCC_MWAOR_1_Lo 0x5C /* memory window 1 address offset low register */ +#define PCC_MWAOR_1_Hi 0x5D /* memory window 1 address offset high register */ + + +/* +** Access to SC4x0's Chip Setup and Control (CSC) +** and PC Card (PCC) indexed registers: +*/ +static inline void setcsc(int reg, unsigned char data) +{ + outb(reg, CSC_INDEX); + outb(data, CSC_DATA); +} + +static inline unsigned char getcsc(int reg) +{ + outb(reg, CSC_INDEX); + return(inb(CSC_DATA)); +} + +static inline void setpcc(int reg, unsigned char data) +{ + outb(reg, PCC_INDEX); + outb(data, PCC_DATA); +} + +static inline unsigned char getpcc(int reg) +{ + outb(reg, PCC_INDEX); + return(inb(PCC_DATA)); +} + + +/* +************************************************************ +** Enable access to DIL/NetPC's flash by mapping it into +** the SC4x0's MMS Window C. +************************************************************ +*/ +static void dnpc_map_flash(unsigned long flash_base, unsigned long flash_size) +{ + unsigned long flash_end = flash_base + flash_size - 1; + + /* + ** enable setup of MMS windows C-F: + */ + /* - enable PC Card indexed register space */ + setcsc(CSC_CR, getcsc(CSC_CR) | 0x2); + /* - set PC Card controller to operate in standard mode */ + setcsc(CSC_PCCMDCR, getcsc(CSC_PCCMDCR) & ~1); + + /* + ** Program base address and end address of window + ** where the flash ROM should appear in CPU address space + */ + setpcc(PCC_MWSAR_1_Lo, (flash_base >> 12) & 0xff); + setpcc(PCC_MWSAR_1_Hi, (flash_base >> 20) & 0x3f); + setpcc(PCC_MWEAR_1_Lo, (flash_end >> 12) & 0xff); + setpcc(PCC_MWEAR_1_Hi, (flash_end >> 20) & 0x3f); + + /* program offset of first flash location to appear in this window (0) */ + setpcc(PCC_MWAOR_1_Lo, ((0 - flash_base) >> 12) & 0xff); + setpcc(PCC_MWAOR_1_Hi, ((0 - flash_base)>> 20) & 0x3f); + + /* set attributes for MMS window C: non-cacheable, write-enabled */ + setcsc(CSC_MMSWAR, getcsc(CSC_MMSWAR) & ~0x11); + + /* select physical device ROMCS0 (i.e. flash) for MMS Window C */ + setcsc(CSC_MMSWDSR, getcsc(CSC_MMSWDSR) & ~0x03); + + /* enable memory window 1 */ + setpcc(PCC_AWER_B, getpcc(PCC_AWER_B) | 0x02); + + /* now disable PC Card indexed register space again */ + setcsc(CSC_CR, getcsc(CSC_CR) & ~0x2); +} + + +/* +************************************************************ +** Disable access to DIL/NetPC's flash by mapping it into +** the SC4x0's MMS Window C. +************************************************************ +*/ +static void dnpc_unmap_flash(void) +{ + /* - enable PC Card indexed register space */ + setcsc(CSC_CR, getcsc(CSC_CR) | 0x2); + + /* disable memory window 1 */ + setpcc(PCC_AWER_B, getpcc(PCC_AWER_B) & ~0x02); + + /* now disable PC Card indexed register space again */ + setcsc(CSC_CR, getcsc(CSC_CR) & ~0x2); +} + + + +/* +************************************************************ +** Enable/Disable VPP to write to flash +************************************************************ +*/ + +static DEFINE_SPINLOCK(dnpc_spin); +static int vpp_counter = 0; +/* +** This is what has to be done for the DNP board .. +*/ +static void dnp_set_vpp(struct map_info *not_used, int on) +{ + spin_lock_irq(&dnpc_spin); + + if (on) + { + if(++vpp_counter == 1) + setcsc(CSC_RBWR, getcsc(CSC_RBWR) & ~0x4); + } + else + { + if(--vpp_counter == 0) + setcsc(CSC_RBWR, getcsc(CSC_RBWR) | 0x4); + else if(vpp_counter < 0) + BUG(); + } + spin_unlock_irq(&dnpc_spin); +} + +/* +** .. and this the ADNP version: +*/ +static void adnp_set_vpp(struct map_info *not_used, int on) +{ + spin_lock_irq(&dnpc_spin); + + if (on) + { + if(++vpp_counter == 1) + setcsc(CSC_RBWR, getcsc(CSC_RBWR) & ~0x8); + } + else + { + if(--vpp_counter == 0) + setcsc(CSC_RBWR, getcsc(CSC_RBWR) | 0x8); + else if(vpp_counter < 0) + BUG(); + } + spin_unlock_irq(&dnpc_spin); +} + + + +#define DNP_WINDOW_SIZE 0x00200000 /* DNP flash size is 2MiB */ +#define ADNP_WINDOW_SIZE 0x00400000 /* ADNP flash size is 4MiB */ +#define WINDOW_ADDR FLASH_BASE + +static struct map_info dnpc_map = { + .name = "ADNP Flash Bank", + .size = ADNP_WINDOW_SIZE, + .bankwidth = 1, + .set_vpp = adnp_set_vpp, + .phys = WINDOW_ADDR +}; + +/* +** The layout of the flash is somewhat "strange": +** +** 1. 960 KiB (15 blocks) : Space for ROM Bootloader and user data +** 2. 64 KiB (1 block) : System BIOS +** 3. 960 KiB (15 blocks) : User Data (DNP model) or +** 3. 3008 KiB (47 blocks) : User Data (ADNP model) +** 4. 64 KiB (1 block) : System BIOS Entry +*/ + +static struct mtd_partition partition_info[]= +{ + { + .name = "ADNP boot", + .offset = 0, + .size = 0xf0000, + }, + { + .name = "ADNP system BIOS", + .offset = MTDPART_OFS_NXTBLK, + .size = 0x10000, +#ifdef DNPC_BIOS_BLOCKS_WRITEPROTECTED + .mask_flags = MTD_WRITEABLE, +#endif + }, + { + .name = "ADNP file system", + .offset = MTDPART_OFS_NXTBLK, + .size = 0x2f0000, + }, + { + .name = "ADNP system BIOS entry", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL, +#ifdef DNPC_BIOS_BLOCKS_WRITEPROTECTED + .mask_flags = MTD_WRITEABLE, +#endif + }, +}; + +#define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0])) + +static struct mtd_info *mymtd; +static struct mtd_info *lowlvl_parts[NUM_PARTITIONS]; +static struct mtd_info *merged_mtd; + +/* +** "Highlevel" partition info: +** +** Using the MTD concat layer, we can re-arrange partitions to our +** liking: we construct a virtual MTD device by concatenating the +** partitions, specifying the sequence such that the boot block +** is immediately followed by the filesystem block (i.e. the stupid +** system BIOS block is mapped to a different place). When re-partitioning +** this concatenated MTD device, we can set the boot block size to +** an arbitrary (though erase block aligned) value i.e. not one that +** is dictated by the flash's physical layout. We can thus set the +** boot block to be e.g. 64 KB (which is fully sufficient if we want +** to boot an etherboot image) or to -say- 1.5 MB if we want to boot +** a large kernel image. In all cases, the remainder of the flash +** is available as file system space. +*/ + +static struct mtd_partition higlvl_partition_info[]= +{ + { + .name = "ADNP boot block", + .offset = 0, + .size = CONFIG_MTD_DILNETPC_BOOTSIZE, + }, + { + .name = "ADNP file system space", + .offset = MTDPART_OFS_NXTBLK, + .size = ADNP_WINDOW_SIZE-CONFIG_MTD_DILNETPC_BOOTSIZE-0x20000, + }, + { + .name = "ADNP system BIOS + BIOS Entry", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL, +#ifdef DNPC_BIOS_BLOCKS_WRITEPROTECTED + .mask_flags = MTD_WRITEABLE, +#endif + }, +}; + +#define NUM_HIGHLVL_PARTITIONS (sizeof(higlvl_partition_info)/sizeof(partition_info[0])) + + +static int dnp_adnp_probe(void) +{ + char *biosid, rc = -1; + + biosid = (char*)ioremap(BIOSID_BASE, 16); + if(biosid) + { + if(!strcmp(biosid, ID_DNPC)) + rc = 1; /* this is a DNPC */ + else if(!strcmp(biosid, ID_ADNP)) + rc = 0; /* this is a ADNPC */ + } + iounmap((void *)biosid); + return(rc); +} + + +static int __init init_dnpc(void) +{ + int is_dnp; + + /* + ** determine hardware (DNP/ADNP/invalid) + */ + if((is_dnp = dnp_adnp_probe()) < 0) + return -ENXIO; + + /* + ** Things are set up for ADNP by default + ** -> modify all that needs to be different for DNP + */ + if(is_dnp) + { /* + ** Adjust window size, select correct set_vpp function. + ** The partitioning scheme is identical on both DNP + ** and ADNP except for the size of the third partition. + */ + int i; + dnpc_map.size = DNP_WINDOW_SIZE; + dnpc_map.set_vpp = dnp_set_vpp; + partition_info[2].size = 0xf0000; + + /* + ** increment all string pointers so the leading 'A' gets skipped, + ** thus turning all occurrences of "ADNP ..." into "DNP ..." + */ + ++dnpc_map.name; + for(i = 0; i < NUM_PARTITIONS; i++) + ++partition_info[i].name; + higlvl_partition_info[1].size = DNP_WINDOW_SIZE - + CONFIG_MTD_DILNETPC_BOOTSIZE - 0x20000; + for(i = 0; i < NUM_HIGHLVL_PARTITIONS; i++) + ++higlvl_partition_info[i].name; + } + + printk(KERN_NOTICE "DIL/Net %s flash: 0x%lx at 0x%lx\n", + is_dnp ? "DNPC" : "ADNP", dnpc_map.size, dnpc_map.phys); + + dnpc_map.virt = ioremap_nocache(dnpc_map.phys, dnpc_map.size); + + dnpc_map_flash(dnpc_map.phys, dnpc_map.size); + + if (!dnpc_map.virt) { + printk("Failed to ioremap_nocache\n"); + return -EIO; + } + simple_map_init(&dnpc_map); + + printk("FLASH virtual address: 0x%p\n", dnpc_map.virt); + + mymtd = do_map_probe("jedec_probe", &dnpc_map); + + if (!mymtd) + mymtd = do_map_probe("cfi_probe", &dnpc_map); + + /* + ** If flash probes fail, try to make flashes accessible + ** at least as ROM. Ajust erasesize in this case since + ** the default one (128M) will break our partitioning + */ + if (!mymtd) + if((mymtd = do_map_probe("map_rom", &dnpc_map))) + mymtd->erasesize = 0x10000; + + if (!mymtd) { + iounmap(dnpc_map.virt); + return -ENXIO; + } + + mymtd->owner = THIS_MODULE; + + /* + ** Supply pointers to lowlvl_parts[] array to add_mtd_partitions() + ** -> add_mtd_partitions() will _not_ register MTD devices for + ** the partitions, but will instead store pointers to the MTD + ** objects it creates into our lowlvl_parts[] array. + ** NOTE: we arrange the pointers such that the sequence of the + ** partitions gets re-arranged: partition #2 follows + ** partition #0. + */ + partition_info[0].mtdp = &lowlvl_parts[0]; + partition_info[1].mtdp = &lowlvl_parts[2]; + partition_info[2].mtdp = &lowlvl_parts[1]; + partition_info[3].mtdp = &lowlvl_parts[3]; + + add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); + + /* + ** now create a virtual MTD device by concatenating the for partitions + ** (in the sequence given by the lowlvl_parts[] array. + */ + merged_mtd = mtd_concat_create(lowlvl_parts, NUM_PARTITIONS, "(A)DNP Flash Concatenated"); + if(merged_mtd) + { /* + ** now partition the new device the way we want it. This time, + ** we do not supply mtd pointers in higlvl_partition_info, so + ** add_mtd_partitions() will register the devices. + */ + add_mtd_partitions(merged_mtd, higlvl_partition_info, NUM_HIGHLVL_PARTITIONS); + } + + return 0; +} + +static void __exit cleanup_dnpc(void) +{ + if(merged_mtd) { + del_mtd_partitions(merged_mtd); + mtd_concat_destroy(merged_mtd); + } + + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + if (dnpc_map.virt) { + iounmap(dnpc_map.virt); + dnpc_unmap_flash(); + dnpc_map.virt = NULL; + } +} + +module_init(init_dnpc); +module_exit(cleanup_dnpc); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sysgo Real-Time Solutions GmbH"); +MODULE_DESCRIPTION("MTD map driver for SSV DIL/NetPC DNP & ADNP"); diff --git a/drivers/mtd/maps/dmv182.c b/drivers/mtd/maps/dmv182.c new file mode 100644 index 00000000000..b9bc63503e2 --- /dev/null +++ b/drivers/mtd/maps/dmv182.c @@ -0,0 +1,149 @@ + +/* + * drivers/mtd/maps/svme182.c + * + * Flash map driver for the Dy4 SVME182 board + * + * $Id: dmv182.c,v 1.5 2004/11/04 13:24:14 gleixner Exp $ + * + * Copyright 2003-2004, TimeSys Corporation + * + * Based on the SVME181 flash map, by Tom Nelson, Dot4, Inc. for TimeSys Corp. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/errno.h> + +/* + * This driver currently handles only the 16MiB user flash bank 1 on the + * board. It does not provide access to bank 0 (contains the Dy4 FFW), bank 2 + * (VxWorks boot), or the optional 48MiB expansion flash. + * + * scott.wood@timesys.com: On the newer boards with 128MiB flash, it + * now supports the first 96MiB (the boot flash bank containing FFW + * is excluded). The VxWorks loader is in partition 1. + */ + +#define FLASH_BASE_ADDR 0xf0000000 +#define FLASH_BANK_SIZE (128*1024*1024) + +MODULE_AUTHOR("Scott Wood, TimeSys Corporation <scott.wood@timesys.com>"); +MODULE_DESCRIPTION("User-programmable flash device on the Dy4 SVME182 board"); +MODULE_LICENSE("GPL"); + +static struct map_info svme182_map = { + .name = "Dy4 SVME182", + .bankwidth = 32, + .size = 128 * 1024 * 1024 +}; + +#define BOOTIMAGE_PART_SIZE ((6*1024*1024)-RESERVED_PART_SIZE) + +// Allow 6MiB for the kernel +#define NEW_BOOTIMAGE_PART_SIZE (6 * 1024 * 1024) +// Allow 1MiB for the bootloader +#define NEW_BOOTLOADER_PART_SIZE (1024 * 1024) +// Use the remaining 9MiB at the end of flash for the RFS +#define NEW_RFS_PART_SIZE (0x01000000 - NEW_BOOTLOADER_PART_SIZE - \ + NEW_BOOTIMAGE_PART_SIZE) + +static struct mtd_partition svme182_partitions[] = { + // The Lower PABS is only 128KiB, but the partition code doesn't + // like partitions that don't end on the largest erase block + // size of the device, even if all of the erase blocks in the + // partition are small ones. The hardware should prevent + // writes to the actual PABS areas. + { + name: "Lower PABS and CPU 0 bootloader or kernel", + size: 6*1024*1024, + offset: 0, + }, + { + name: "Root Filesystem", + size: 10*1024*1024, + offset: MTDPART_OFS_NXTBLK + }, + { + name: "CPU1 Bootloader", + size: 1024*1024, + offset: MTDPART_OFS_NXTBLK, + }, + { + name: "Extra", + size: 110*1024*1024, + offset: MTDPART_OFS_NXTBLK + }, + { + name: "Foundation Firmware and Upper PABS", + size: 1024*1024, + offset: MTDPART_OFS_NXTBLK, + mask_flags: MTD_WRITEABLE // read-only + } +}; + +static struct mtd_info *this_mtd; + +static int __init init_svme182(void) +{ + struct mtd_partition *partitions; + int num_parts = sizeof(svme182_partitions) / sizeof(struct mtd_partition); + + partitions = svme182_partitions; + + svme182_map.virt = ioremap(FLASH_BASE_ADDR, svme182_map.size); + + if (svme182_map.virt == 0) { + printk("Failed to ioremap FLASH memory area.\n"); + return -EIO; + } + + simple_map_init(&svme182_map); + + this_mtd = do_map_probe("cfi_probe", &svme182_map); + if (!this_mtd) + { + iounmap((void *)svme182_map.virt); + return -ENXIO; + } + + printk(KERN_NOTICE "SVME182 flash device: %dMiB at 0x%08x\n", + this_mtd->size >> 20, FLASH_BASE_ADDR); + + this_mtd->owner = THIS_MODULE; + add_mtd_partitions(this_mtd, partitions, num_parts); + + return 0; +} + +static void __exit cleanup_svme182(void) +{ + if (this_mtd) + { + del_mtd_partitions(this_mtd); + map_destroy(this_mtd); + } + + if (svme182_map.virt) + { + iounmap((void *)svme182_map.virt); + svme182_map.virt = 0; + } + + return; +} + +module_init(init_svme182); +module_exit(cleanup_svme182); diff --git a/drivers/mtd/maps/ebony.c b/drivers/mtd/maps/ebony.c new file mode 100644 index 00000000000..b9d9cf4854b --- /dev/null +++ b/drivers/mtd/maps/ebony.c @@ -0,0 +1,163 @@ +/* + * $Id: ebony.c,v 1.15 2004/12/09 18:39:54 holindho Exp $ + * + * Mapping for Ebony user flash + * + * Matt Porter <mporter@kernel.crashing.org> + * + * Copyright 2002-2004 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <linux/version.h> +#include <asm/io.h> +#include <asm/ibm44x.h> +#include <platforms/4xx/ebony.h> + +static struct mtd_info *flash; + +static struct map_info ebony_small_map = { + .name = "Ebony small flash", + .size = EBONY_SMALL_FLASH_SIZE, + .bankwidth = 1, +}; + +static struct map_info ebony_large_map = { + .name = "Ebony large flash", + .size = EBONY_LARGE_FLASH_SIZE, + .bankwidth = 1, +}; + +static struct mtd_partition ebony_small_partitions[] = { + { + .name = "OpenBIOS", + .offset = 0x0, + .size = 0x80000, + } +}; + +static struct mtd_partition ebony_large_partitions[] = { + { + .name = "fs", + .offset = 0, + .size = 0x380000, + }, + { + .name = "firmware", + .offset = 0x380000, + .size = 0x80000, + } +}; + +int __init init_ebony(void) +{ + u8 fpga0_reg; + u8 __iomem *fpga0_adr; + unsigned long long small_flash_base, large_flash_base; + + fpga0_adr = ioremap64(EBONY_FPGA_ADDR, 16); + if (!fpga0_adr) + return -ENOMEM; + + fpga0_reg = readb(fpga0_adr); + iounmap(fpga0_adr); + + if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) && + !EBONY_FLASH_SEL(fpga0_reg)) + small_flash_base = EBONY_SMALL_FLASH_HIGH2; + else if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) && + EBONY_FLASH_SEL(fpga0_reg)) + small_flash_base = EBONY_SMALL_FLASH_HIGH1; + else if (!EBONY_BOOT_SMALL_FLASH(fpga0_reg) && + !EBONY_FLASH_SEL(fpga0_reg)) + small_flash_base = EBONY_SMALL_FLASH_LOW2; + else + small_flash_base = EBONY_SMALL_FLASH_LOW1; + + if (EBONY_BOOT_SMALL_FLASH(fpga0_reg) && + !EBONY_ONBRD_FLASH_EN(fpga0_reg)) + large_flash_base = EBONY_LARGE_FLASH_LOW; + else + large_flash_base = EBONY_LARGE_FLASH_HIGH; + + ebony_small_map.phys = small_flash_base; + ebony_small_map.virt = ioremap64(small_flash_base, + ebony_small_map.size); + + if (!ebony_small_map.virt) { + printk("Failed to ioremap flash\n"); + return -EIO; + } + + simple_map_init(&ebony_small_map); + + flash = do_map_probe("jedec_probe", &ebony_small_map); + if (flash) { + flash->owner = THIS_MODULE; + add_mtd_partitions(flash, ebony_small_partitions, + ARRAY_SIZE(ebony_small_partitions)); + } else { + printk("map probe failed for flash\n"); + return -ENXIO; + } + + ebony_large_map.phys = large_flash_base; + ebony_large_map.virt = ioremap64(large_flash_base, + ebony_large_map.size); + + if (!ebony_large_map.virt) { + printk("Failed to ioremap flash\n"); + return -EIO; + } + + simple_map_init(&ebony_large_map); + + flash = do_map_probe("jedec_probe", &ebony_large_map); + if (flash) { + flash->owner = THIS_MODULE; + add_mtd_partitions(flash, ebony_large_partitions, + ARRAY_SIZE(ebony_large_partitions)); + } else { + printk("map probe failed for flash\n"); + return -ENXIO; + } + + return 0; +} + +static void __exit cleanup_ebony(void) +{ + if (flash) { + del_mtd_partitions(flash); + map_destroy(flash); + } + + if (ebony_small_map.virt) { + iounmap(ebony_small_map.virt); + ebony_small_map.virt = NULL; + } + + if (ebony_large_map.virt) { + iounmap(ebony_large_map.virt); + ebony_large_map.virt = NULL; + } +} + +module_init(init_ebony); +module_exit(cleanup_ebony); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Matt Porter <mporter@kernel.crashing.org>"); +MODULE_DESCRIPTION("MTD map and partitions for IBM 440GP Ebony boards"); diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c new file mode 100644 index 00000000000..8b0da394f3f --- /dev/null +++ b/drivers/mtd/maps/edb7312.c @@ -0,0 +1,147 @@ +/* + * $Id: edb7312.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $ + * + * Handle mapping of the NOR flash on Cogent EDB7312 boards + * + * Copyright 2002 SYSGO Real-Time Solutions GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/config.h> + +#ifdef CONFIG_MTD_PARTITIONS +#include <linux/mtd/partitions.h> +#endif + +#define WINDOW_ADDR 0x00000000 /* physical properties of flash */ +#define WINDOW_SIZE 0x01000000 +#define BUSWIDTH 2 +#define FLASH_BLOCKSIZE_MAIN 0x20000 +#define FLASH_NUMBLOCKS_MAIN 128 +/* can be "cfi_probe", "jedec_probe", "map_rom", NULL }; */ +#define PROBETYPES { "cfi_probe", NULL } + +#define MSG_PREFIX "EDB7312-NOR:" /* prefix for our printk()'s */ +#define MTDID "edb7312-nor" /* for mtdparts= partitioning */ + +static struct mtd_info *mymtd; + +struct map_info edb7312nor_map = { + .name = "NOR flash on EDB7312", + .size = WINDOW_SIZE, + .bankwidth = BUSWIDTH, + .phys = WINDOW_ADDR, +}; + +#ifdef CONFIG_MTD_PARTITIONS + +/* + * MTD partitioning stuff + */ +static struct mtd_partition static_partitions[3] = +{ + { + .name = "ARMboot", + .size = 0x40000, + .offset = 0 + }, + { + .name = "Kernel", + .size = 0x200000, + .offset = 0x40000 + }, + { + .name = "RootFS", + .size = 0xDC0000, + .offset = 0x240000 + }, +}; + +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + +#endif + +static int mtd_parts_nb = 0; +static struct mtd_partition *mtd_parts = 0; + +int __init init_edb7312nor(void) +{ + static const char *rom_probe_types[] = PROBETYPES; + const char **type; + const char *part_type = 0; + + printk(KERN_NOTICE MSG_PREFIX "0x%08x at 0x%08x\n", + WINDOW_SIZE, WINDOW_ADDR); + edb7312nor_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); + + if (!edb7312nor_map.virt) { + printk(MSG_PREFIX "failed to ioremap\n"); + return -EIO; + } + + simple_map_init(&edb7312nor_map); + + mymtd = 0; + type = rom_probe_types; + for(; !mymtd && *type; type++) { + mymtd = do_map_probe(*type, &edb7312nor_map); + } + if (mymtd) { + mymtd->owner = THIS_MODULE; + +#ifdef CONFIG_MTD_PARTITIONS + mtd_parts_nb = parse_mtd_partitions(mymtd, probes, &mtd_parts, MTDID); + if (mtd_parts_nb > 0) + part_type = "detected"; + + if (mtd_parts_nb == 0) + { + mtd_parts = static_partitions; + mtd_parts_nb = ARRAY_SIZE(static_partitions); + part_type = "static"; + } +#endif + add_mtd_device(mymtd); + if (mtd_parts_nb == 0) + printk(KERN_NOTICE MSG_PREFIX "no partition info available\n"); + else + { + printk(KERN_NOTICE MSG_PREFIX + "using %s partition definition\n", part_type); + add_mtd_partitions(mymtd, mtd_parts, mtd_parts_nb); + } + return 0; + } + + iounmap((void *)edb7312nor_map.virt); + return -ENXIO; +} + +static void __exit cleanup_edb7312nor(void) +{ + if (mymtd) { + del_mtd_device(mymtd); + map_destroy(mymtd); + } + if (edb7312nor_map.virt) { + iounmap((void *)edb7312nor_map.virt); + edb7312nor_map.virt = 0; + } +} + +module_init(init_edb7312nor); +module_exit(cleanup_edb7312nor); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Marius Groeger <mag@sysgo.de>"); +MODULE_DESCRIPTION("Generic configurable MTD map driver"); diff --git a/drivers/mtd/maps/elan-104nc.c b/drivers/mtd/maps/elan-104nc.c new file mode 100644 index 00000000000..e9465f5c069 --- /dev/null +++ b/drivers/mtd/maps/elan-104nc.c @@ -0,0 +1,228 @@ +/* elan-104nc.c -- MTD map driver for Arcom Control Systems ELAN-104NC + + Copyright (C) 2000 Arcom Control System Ltd + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + + $Id: elan-104nc.c,v 1.25 2004/11/28 09:40:39 dwmw2 Exp $ + +The ELAN-104NC has up to 8 Mibyte of Intel StrataFlash (28F320/28F640) in x16 +mode. This drivers uses the CFI probe and Intel Extended Command Set drivers. + +The flash is accessed as follows: + + 32 kbyte memory window at 0xb0000-0xb7fff + + 16 bit I/O port (0x22) for some sort of paging. + +The single flash device is divided into 3 partition which appear as separate +MTD devices. + +Linux thinks that the I/O port is used by the PIC and hence check_region() will +always fail. So we don't do it. I just hope it doesn't break anything. +*/ +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <asm/io.h> + +#include <linux/mtd/map.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> + +#define WINDOW_START 0xb0000 +/* Number of bits in offset. */ +#define WINDOW_SHIFT 15 +#define WINDOW_LENGTH (1 << WINDOW_SHIFT) +/* The bits for the offset into the window. */ +#define WINDOW_MASK (WINDOW_LENGTH-1) +#define PAGE_IO 0x22 +#define PAGE_IO_SIZE 2 + +static volatile int page_in_window = -1; // Current page in window. +static void __iomem *iomapadr; +static DEFINE_SPINLOCK(elan_104nc_spin); + +/* partition_info gives details on the logical partitions that the split the + * single flash device into. If the size if zero we use up to the end of the + * device. */ +static struct mtd_partition partition_info[]={ + { .name = "ELAN-104NC flash boot partition", + .offset = 0, + .size = 640*1024 }, + { .name = "ELAN-104NC flash partition 1", + .offset = 640*1024, + .size = 896*1024 }, + { .name = "ELAN-104NC flash partition 2", + .offset = (640+896)*1024 } +}; +#define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0])) + +/* + * If no idea what is going on here. This is taken from the FlashFX stuff. + */ +#define ROMCS 1 + +static inline void elan_104nc_setup(void) +{ + u16 t; + + outw( 0x0023 + ROMCS*2, PAGE_IO ); + t=inb( PAGE_IO+1 ); + + t=(t & 0xf9) | 0x04; + + outw( ((0x0023 + ROMCS*2) | (t << 8)), PAGE_IO ); +} + +static inline void elan_104nc_page(struct map_info *map, unsigned long ofs) +{ + unsigned long page = ofs >> WINDOW_SHIFT; + + if( page!=page_in_window ) { + int cmd1; + int cmd2; + + cmd1=(page & 0x700) + 0x0833 + ROMCS*0x4000; + cmd2=((page & 0xff) << 8) + 0x0032; + + outw( cmd1, PAGE_IO ); + outw( cmd2, PAGE_IO ); + + page_in_window = page; + } +} + + +static map_word elan_104nc_read16(struct map_info *map, unsigned long ofs) +{ + map_word ret; + spin_lock(&elan_104nc_spin); + elan_104nc_page(map, ofs); + ret.x[0] = readw(iomapadr + (ofs & WINDOW_MASK)); + spin_unlock(&elan_104nc_spin); + return ret; +} + +static void elan_104nc_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + while (len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (from & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(from & WINDOW_MASK); + + spin_lock(&elan_104nc_spin); + elan_104nc_page(map, from); + memcpy_fromio(to, iomapadr + (from & WINDOW_MASK), thislen); + spin_unlock(&elan_104nc_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static void elan_104nc_write16(struct map_info *map, map_word d, unsigned long adr) +{ + spin_lock(&elan_104nc_spin); + elan_104nc_page(map, adr); + writew(d.x[0], iomapadr + (adr & WINDOW_MASK)); + spin_unlock(&elan_104nc_spin); +} + +static void elan_104nc_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (to & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(to & WINDOW_MASK); + + spin_lock(&elan_104nc_spin); + elan_104nc_page(map, to); + memcpy_toio(iomapadr + (to & WINDOW_MASK), from, thislen); + spin_unlock(&elan_104nc_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static struct map_info elan_104nc_map = { + .name = "ELAN-104NC flash", + .phys = NO_XIP, + .size = 8*1024*1024, /* this must be set to a maximum possible amount + of flash so the cfi probe routines find all + the chips */ + .bankwidth = 2, + .read = elan_104nc_read16, + .copy_from = elan_104nc_copy_from, + .write = elan_104nc_write16, + .copy_to = elan_104nc_copy_to +}; + +/* MTD device for all of the flash. */ +static struct mtd_info *all_mtd; + +static void cleanup_elan_104nc(void) +{ + if( all_mtd ) { + del_mtd_partitions( all_mtd ); + map_destroy( all_mtd ); + } + + iounmap(iomapadr); +} + +static int __init init_elan_104nc(void) +{ + /* Urg! We use I/O port 0x22 without request_region()ing it, + because it's already allocated to the PIC. */ + + iomapadr = ioremap(WINDOW_START, WINDOW_LENGTH); + if (!iomapadr) { + printk( KERN_ERR"%s: failed to ioremap memory region\n", + elan_104nc_map.name ); + return -EIO; + } + + printk( KERN_INFO"%s: IO:0x%x-0x%x MEM:0x%x-0x%x\n", + elan_104nc_map.name, + PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1, + WINDOW_START, WINDOW_START+WINDOW_LENGTH-1 ); + + elan_104nc_setup(); + + /* Probe for chip. */ + all_mtd = do_map_probe("cfi_probe", &elan_104nc_map ); + if( !all_mtd ) { + cleanup_elan_104nc(); + return -ENXIO; + } + + all_mtd->owner = THIS_MODULE; + + /* Create MTD devices for each partition. */ + add_mtd_partitions( all_mtd, partition_info, NUM_PARTITIONS ); + + return 0; +} + +module_init(init_elan_104nc); +module_exit(cleanup_elan_104nc); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Arcom Control Systems Ltd."); +MODULE_DESCRIPTION("MTD map driver for Arcom Control Systems ELAN-104NC"); diff --git a/drivers/mtd/maps/epxa10db-flash.c b/drivers/mtd/maps/epxa10db-flash.c new file mode 100644 index 00000000000..ab6dbe2b8cc --- /dev/null +++ b/drivers/mtd/maps/epxa10db-flash.c @@ -0,0 +1,176 @@ +/* + * Flash memory access on EPXA based devices + * + * (C) 2000 Nicolas Pitre <nico@cam.org> + * Copyright (C) 2001 Altera Corporation + * Copyright (C) 2001 Red Hat, Inc. + * + * $Id: epxa10db-flash.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/hardware.h> +#ifdef CONFIG_EPXA10DB +#define BOARD_NAME "EPXA10DB" +#else +#define BOARD_NAME "EPXA1DB" +#endif + +static int nr_parts = 0; +static struct mtd_partition *parts; + +static struct mtd_info *mymtd; + +static int epxa_default_partitions(struct mtd_info *master, struct mtd_partition **pparts); + + +static struct map_info epxa_map = { + .name = "EPXA flash", + .size = FLASH_SIZE, + .bankwidth = 2, + .phys = FLASH_START, +}; + +static const char *probes[] = { "RedBoot", "afs", NULL }; + +static int __init epxa_mtd_init(void) +{ + int i; + + printk(KERN_NOTICE "%s flash device: 0x%x at 0x%x\n", BOARD_NAME, FLASH_SIZE, FLASH_START); + + epxa_map.virt = ioremap(FLASH_START, FLASH_SIZE); + if (!epxa_map.virt) { + printk("Failed to ioremap %s flash\n",BOARD_NAME); + return -EIO; + } + simple_map_init(&epxa_map); + + mymtd = do_map_probe("cfi_probe", &epxa_map); + if (!mymtd) { + iounmap((void *)epxa_map.virt); + return -ENXIO; + } + + mymtd->owner = THIS_MODULE; + + /* Unlock the flash device. */ + if(mymtd->unlock){ + for (i=0; i<mymtd->numeraseregions;i++){ + int j; + for(j=0;j<mymtd->eraseregions[i].numblocks;j++){ + mymtd->unlock(mymtd,mymtd->eraseregions[i].offset + j * mymtd->eraseregions[i].erasesize,mymtd->eraseregions[i].erasesize); + } + } + } + +#ifdef CONFIG_MTD_PARTITIONS + nr_parts = parse_mtd_partitions(mymtd, probes, &parts, 0); + + if (nr_parts > 0) { + add_mtd_partitions(mymtd, parts, nr_parts); + return 0; + } +#endif + /* No recognised partitioning schemes found - use defaults */ + nr_parts = epxa_default_partitions(mymtd, &parts); + if (nr_parts > 0) { + add_mtd_partitions(mymtd, parts, nr_parts); + return 0; + } + + /* If all else fails... */ + add_mtd_device(mymtd); + return 0; +} + +static void __exit epxa_mtd_cleanup(void) +{ + if (mymtd) { + if (nr_parts) + del_mtd_partitions(mymtd); + else + del_mtd_device(mymtd); + map_destroy(mymtd); + } + if (epxa_map.virt) { + iounmap((void *)epxa_map.virt); + epxa_map.virt = 0; + } +} + + +/* + * This will do for now, once we decide which bootldr we're finally + * going to use then we'll remove this function and do it properly + * + * Partions are currently (as offsets from base of flash): + * 0x00000000 - 0x003FFFFF - bootloader (!) + * 0x00400000 - 0x00FFFFFF - Flashdisk + */ + +static int __init epxa_default_partitions(struct mtd_info *master, struct mtd_partition **pparts) +{ + struct mtd_partition *parts; + int ret, i; + int npartitions = 0; + char *names; + const char *name = "jffs"; + + printk("Using default partitions for %s\n",BOARD_NAME); + npartitions=1; + parts = kmalloc(npartitions*sizeof(*parts)+strlen(name), GFP_KERNEL); + memzero(parts,npartitions*sizeof(*parts)+strlen(name)); + if (!parts) { + ret = -ENOMEM; + goto out; + } + i=0; + names = (char *)&parts[npartitions]; + parts[i].name = names; + names += strlen(name) + 1; + strcpy(parts[i].name, name); + +#ifdef CONFIG_EPXA10DB + parts[i].size = FLASH_SIZE-0x00400000; + parts[i].offset = 0x00400000; +#else + parts[i].size = FLASH_SIZE-0x00180000; + parts[i].offset = 0x00180000; +#endif + + out: + *pparts = parts; + return npartitions; +} + + +module_init(epxa_mtd_init); +module_exit(epxa_mtd_cleanup); + +MODULE_AUTHOR("Clive Davies"); +MODULE_DESCRIPTION("Altera epxa mtd flash map"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c new file mode 100644 index 00000000000..068bb6a5452 --- /dev/null +++ b/drivers/mtd/maps/fortunet.c @@ -0,0 +1,271 @@ +/* fortunet.c memory map + * + * $Id: fortunet.c,v 1.9 2004/11/04 13:24:14 gleixner Exp $ + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#define MAX_NUM_REGIONS 4 +#define MAX_NUM_PARTITIONS 8 + +#define DEF_WINDOW_ADDR_PHY 0x00000000 +#define DEF_WINDOW_SIZE 0x00800000 // 8 Mega Bytes + +#define MTD_FORTUNET_PK "MTD FortuNet: " + +#define MAX_NAME_SIZE 128 + +struct map_region +{ + int window_addr_physical; + int altbankwidth; + struct map_info map_info; + struct mtd_info *mymtd; + struct mtd_partition parts[MAX_NUM_PARTITIONS]; + char map_name[MAX_NAME_SIZE]; + char parts_name[MAX_NUM_PARTITIONS][MAX_NAME_SIZE]; +}; + +static struct map_region map_regions[MAX_NUM_REGIONS]; +static int map_regions_set[MAX_NUM_REGIONS] = {0,0,0,0}; +static int map_regions_parts[MAX_NUM_REGIONS] = {0,0,0,0}; + + + +struct map_info default_map = { + .size = DEF_WINDOW_SIZE, + .bankwidth = 4, +}; + +static char * __init get_string_option(char *dest,int dest_size,char *sor) +{ + if(!dest_size) + return sor; + dest_size--; + while(*sor) + { + if(*sor==',') + { + sor++; + break; + } + else if(*sor=='\"') + { + sor++; + while(*sor) + { + if(*sor=='\"') + { + sor++; + break; + } + *dest = *sor; + dest++; + sor++; + dest_size--; + if(!dest_size) + { + *dest = 0; + return sor; + } + } + } + else + { + *dest = *sor; + dest++; + sor++; + dest_size--; + if(!dest_size) + { + *dest = 0; + return sor; + } + } + } + *dest = 0; + return sor; +} + +static int __init MTD_New_Region(char *line) +{ + char string[MAX_NAME_SIZE]; + int params[6]; + get_options (get_string_option(string,sizeof(string),line),6,params); + if(params[0]<1) + { + printk(MTD_FORTUNET_PK "Bad parameters for MTD Region " + " name,region-number[,base,size,bankwidth,altbankwidth]\n"); + return 1; + } + if((params[1]<0)||(params[1]>=MAX_NUM_REGIONS)) + { + printk(MTD_FORTUNET_PK "Bad region index of %d only have 0..%u regions\n", + params[1],MAX_NUM_REGIONS-1); + return 1; + } + memset(&map_regions[params[1]],0,sizeof(map_regions[params[1]])); + memcpy(&map_regions[params[1]].map_info, + &default_map,sizeof(map_regions[params[1]].map_info)); + map_regions_set[params[1]] = 1; + map_regions[params[1]].window_addr_physical = DEF_WINDOW_ADDR_PHY; + map_regions[params[1]].altbankwidth = 2; + map_regions[params[1]].mymtd = NULL; + map_regions[params[1]].map_info.name = map_regions[params[1]].map_name; + strcpy(map_regions[params[1]].map_info.name,string); + if(params[0]>1) + { + map_regions[params[1]].window_addr_physical = params[2]; + } + if(params[0]>2) + { + map_regions[params[1]].map_info.size = params[3]; + } + if(params[0]>3) + { + map_regions[params[1]].map_info.bankwidth = params[4]; + } + if(params[0]>4) + { + map_regions[params[1]].altbankwidth = params[5]; + } + return 1; +} + +static int __init MTD_New_Partition(char *line) +{ + char string[MAX_NAME_SIZE]; + int params[4]; + get_options (get_string_option(string,sizeof(string),line),4,params); + if(params[0]<3) + { + printk(MTD_FORTUNET_PK "Bad parameters for MTD Partition " + " name,region-number,size,offset\n"); + return 1; + } + if((params[1]<0)||(params[1]>=MAX_NUM_REGIONS)) + { + printk(MTD_FORTUNET_PK "Bad region index of %d only have 0..%u regions\n", + params[1],MAX_NUM_REGIONS-1); + return 1; + } + if(map_regions_parts[params[1]]>=MAX_NUM_PARTITIONS) + { + printk(MTD_FORTUNET_PK "Out of space for partition in this region\n"); + return 1; + } + map_regions[params[1]].parts[map_regions_parts[params[1]]].name = + map_regions[params[1]]. parts_name[map_regions_parts[params[1]]]; + strcpy(map_regions[params[1]].parts[map_regions_parts[params[1]]].name,string); + map_regions[params[1]].parts[map_regions_parts[params[1]]].size = + params[2]; + map_regions[params[1]].parts[map_regions_parts[params[1]]].offset = + params[3]; + map_regions[params[1]].parts[map_regions_parts[params[1]]].mask_flags = 0; + map_regions_parts[params[1]]++; + return 1; +} + +__setup("MTD_Region=", MTD_New_Region); +__setup("MTD_Partition=", MTD_New_Partition); + +/* Backwards-spelling-compatibility */ +__setup("MTD_Partion=", MTD_New_Partition); + +int __init init_fortunet(void) +{ + int ix,iy; + for(iy=ix=0;ix<MAX_NUM_REGIONS;ix++) + { + if(map_regions_parts[ix]&&(!map_regions_set[ix])) + { + printk(MTD_FORTUNET_PK "Region %d is not setup (Setting to default)\n", + ix); + memset(&map_regions[ix],0,sizeof(map_regions[ix])); + memcpy(&map_regions[ix].map_info,&default_map, + sizeof(map_regions[ix].map_info)); + map_regions_set[ix] = 1; + map_regions[ix].window_addr_physical = DEF_WINDOW_ADDR_PHY; + map_regions[ix].altbankwidth = 2; + map_regions[ix].mymtd = NULL; + map_regions[ix].map_info.name = map_regions[ix].map_name; + strcpy(map_regions[ix].map_info.name,"FORTUNET"); + } + if(map_regions_set[ix]) + { + iy++; + printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash device at physically " + " address %x size %x\n", + map_regions[ix].map_info.name, + map_regions[ix].window_addr_physical, + map_regions[ix].map_info.size); + + map_regions[ix].map_info.phys = map_regions[ix].window_addr_physical, + + map_regions[ix].map_info.virt = + ioremap_nocache( + map_regions[ix].window_addr_physical, + map_regions[ix].map_info.size); + if(!map_regions[ix].map_info.virt) + { + printk(MTD_FORTUNET_PK "%s flash failed to ioremap!\n", + map_regions[ix].map_info.name); + return -ENXIO; + } + simple_map_init(&map_regions[ix].map_info); + + printk(KERN_NOTICE MTD_FORTUNET_PK "%s flash is virtually at: %x\n", + map_regions[ix].map_info.name, + map_regions[ix].map_info.virt); + map_regions[ix].mymtd = do_map_probe("cfi_probe", + &map_regions[ix].map_info); + if((!map_regions[ix].mymtd)&&( + map_regions[ix].altbankwidth!=map_regions[ix].map_info.bankwidth)) + { + printk(KERN_NOTICE MTD_FORTUNET_PK "Trying alternate bankwidth " + "for %s flash.\n", + map_regions[ix].map_info.name); + map_regions[ix].map_info.bankwidth = + map_regions[ix].altbankwidth; + map_regions[ix].mymtd = do_map_probe("cfi_probe", + &map_regions[ix].map_info); + } + map_regions[ix].mymtd->owner = THIS_MODULE; + add_mtd_partitions(map_regions[ix].mymtd, + map_regions[ix].parts,map_regions_parts[ix]); + } + } + if(iy) + return 0; + return -ENXIO; +} + +static void __exit cleanup_fortunet(void) +{ + int ix; + for(ix=0;ix<MAX_NUM_REGIONS;ix++) + { + if(map_regions_set[ix]) + { + if( map_regions[ix].mymtd ) + { + del_mtd_partitions( map_regions[ix].mymtd ); + map_destroy( map_regions[ix].mymtd ); + } + iounmap((void *)map_regions[ix].map_info.virt); + } + } +} + +module_init(init_fortunet); +module_exit(cleanup_fortunet); + +MODULE_AUTHOR("FortuNet, Inc."); +MODULE_DESCRIPTION("MTD map driver for FortuNet boards"); diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c new file mode 100644 index 00000000000..c73828171d9 --- /dev/null +++ b/drivers/mtd/maps/h720x-flash.c @@ -0,0 +1,144 @@ +/* + * Flash memory access on Hynix GMS30C7201/HMS30C7202 based + * evaluation boards + * + * $Id: h720x-flash.c,v 1.11 2004/11/04 13:24:14 gleixner Exp $ + * + * (C) 2002 Jungjun Kim <jungjun.kim@hynix.com> + * 2003 Thomas Gleixner <tglx@linutronix.de> + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/slab.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <asm/hardware.h> +#include <asm/io.h> + +static struct mtd_info *mymtd; + +static struct map_info h720x_map = { + .name = "H720X", + .bankwidth = 4, + .size = FLASH_SIZE, + .phys = FLASH_PHYS, +}; + +static struct mtd_partition h720x_partitions[] = { + { + .name = "ArMon", + .size = 0x00080000, + .offset = 0, + .mask_flags = MTD_WRITEABLE + },{ + .name = "Env", + .size = 0x00040000, + .offset = 0x00080000, + .mask_flags = MTD_WRITEABLE + },{ + .name = "Kernel", + .size = 0x00180000, + .offset = 0x000c0000, + .mask_flags = MTD_WRITEABLE + },{ + .name = "Ramdisk", + .size = 0x00400000, + .offset = 0x00240000, + .mask_flags = MTD_WRITEABLE + },{ + .name = "jffs2", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND + } +}; + +#define NUM_PARTITIONS (sizeof(h720x_partitions)/sizeof(h720x_partitions[0])) + +static int nr_mtd_parts; +static struct mtd_partition *mtd_parts; +static const char *probes[] = { "cmdlinepart", NULL }; + +/* + * Initialize FLASH support + */ +int __init h720x_mtd_init(void) +{ + + char *part_type = NULL; + + h720x_map.virt = ioremap(FLASH_PHYS, FLASH_SIZE); + + if (!h720x_map.virt) { + printk(KERN_ERR "H720x-MTD: ioremap failed\n"); + return -EIO; + } + + simple_map_init(&h720x_map); + + // Probe for flash bankwidth 4 + printk (KERN_INFO "H720x-MTD probing 32bit FLASH\n"); + mymtd = do_map_probe("cfi_probe", &h720x_map); + if (!mymtd) { + printk (KERN_INFO "H720x-MTD probing 16bit FLASH\n"); + // Probe for bankwidth 2 + h720x_map.bankwidth = 2; + mymtd = do_map_probe("cfi_probe", &h720x_map); + } + + if (mymtd) { + mymtd->owner = THIS_MODULE; + +#ifdef CONFIG_MTD_PARTITIONS + nr_mtd_parts = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0); + if (nr_mtd_parts > 0) + part_type = "command line"; +#endif + if (nr_mtd_parts <= 0) { + mtd_parts = h720x_partitions; + nr_mtd_parts = NUM_PARTITIONS; + part_type = "builtin"; + } + printk(KERN_INFO "Using %s partition table\n", part_type); + add_mtd_partitions(mymtd, mtd_parts, nr_mtd_parts); + return 0; + } + + iounmap((void *)h720x_map.virt); + return -ENXIO; +} + +/* + * Cleanup + */ +static void __exit h720x_mtd_cleanup(void) +{ + + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + + /* Free partition info, if commandline partition was used */ + if (mtd_parts && (mtd_parts != h720x_partitions)) + kfree (mtd_parts); + + if (h720x_map.virt) { + iounmap((void *)h720x_map.virt); + h720x_map.virt = 0; + } +} + + +module_init(h720x_mtd_init); +module_exit(h720x_mtd_cleanup); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>"); +MODULE_DESCRIPTION("MTD map driver for Hynix evaluation boards"); diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c new file mode 100644 index 00000000000..29d1cc1bb42 --- /dev/null +++ b/drivers/mtd/maps/ichxrom.c @@ -0,0 +1,383 @@ +/* + * ichxrom.c + * + * Normal mappings of chips in physical memory + * $Id: ichxrom.c,v 1.16 2004/11/28 09:40:39 dwmw2 Exp $ + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/cfi.h> +#include <linux/mtd/flashchip.h> +#include <linux/config.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/list.h> + +#define xstr(s) str(s) +#define str(s) #s +#define MOD_NAME xstr(KBUILD_BASENAME) + +#define ADDRESS_NAME_LEN 18 + +#define ROM_PROBE_STEP_SIZE (64*1024) /* 64KiB */ + +#define BIOS_CNTL 0x4e +#define FWH_DEC_EN1 0xE3 +#define FWH_DEC_EN2 0xF0 +#define FWH_SEL1 0xE8 +#define FWH_SEL2 0xEE + +struct ichxrom_window { + void __iomem* virt; + unsigned long phys; + unsigned long size; + struct list_head maps; + struct resource rsrc; + struct pci_dev *pdev; +}; + +struct ichxrom_map_info { + struct list_head list; + struct map_info map; + struct mtd_info *mtd; + struct resource rsrc; + char map_name[sizeof(MOD_NAME) + 2 + ADDRESS_NAME_LEN]; +}; + +static struct ichxrom_window ichxrom_window = { + .maps = LIST_HEAD_INIT(ichxrom_window.maps), +}; + +static void ichxrom_cleanup(struct ichxrom_window *window) +{ + struct ichxrom_map_info *map, *scratch; + u16 word; + + /* Disable writes through the rom window */ + pci_read_config_word(window->pdev, BIOS_CNTL, &word); + pci_write_config_word(window->pdev, BIOS_CNTL, word & ~1); + + /* Free all of the mtd devices */ + list_for_each_entry_safe(map, scratch, &window->maps, list) { + if (map->rsrc.parent) + release_resource(&map->rsrc); + del_mtd_device(map->mtd); + map_destroy(map->mtd); + list_del(&map->list); + kfree(map); + } + if (window->rsrc.parent) + release_resource(&window->rsrc); + if (window->virt) { + iounmap(window->virt); + window->virt = NULL; + window->phys = 0; + window->size = 0; + window->pdev = NULL; + } +} + + +static int __devinit ichxrom_init_one (struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; + struct ichxrom_window *window = &ichxrom_window; + struct ichxrom_map_info *map = NULL; + unsigned long map_top; + u8 byte; + u16 word; + + /* For now I just handle the ichx and I assume there + * are not a lot of resources up at the top of the address + * space. It is possible to handle other devices in the + * top 16MB but it is very painful. Also since + * you can only really attach a FWH to an ICHX there + * a number of simplifications you can make. + * + * Also you can page firmware hubs if an 8MB window isn't enough + * but don't currently handle that case either. + */ + window->pdev = pdev; + + /* Find a region continuous to the end of the ROM window */ + window->phys = 0; + pci_read_config_byte(pdev, FWH_DEC_EN1, &byte); + if (byte == 0xff) { + window->phys = 0xffc00000; + pci_read_config_byte(pdev, FWH_DEC_EN2, &byte); + if ((byte & 0x0f) == 0x0f) { + window->phys = 0xff400000; + } + else if ((byte & 0x0e) == 0x0e) { + window->phys = 0xff500000; + } + else if ((byte & 0x0c) == 0x0c) { + window->phys = 0xff600000; + } + else if ((byte & 0x08) == 0x08) { + window->phys = 0xff700000; + } + } + else if ((byte & 0xfe) == 0xfe) { + window->phys = 0xffc80000; + } + else if ((byte & 0xfc) == 0xfc) { + window->phys = 0xffd00000; + } + else if ((byte & 0xf8) == 0xf8) { + window->phys = 0xffd80000; + } + else if ((byte & 0xf0) == 0xf0) { + window->phys = 0xffe00000; + } + else if ((byte & 0xe0) == 0xe0) { + window->phys = 0xffe80000; + } + else if ((byte & 0xc0) == 0xc0) { + window->phys = 0xfff00000; + } + else if ((byte & 0x80) == 0x80) { + window->phys = 0xfff80000; + } + + if (window->phys == 0) { + printk(KERN_ERR MOD_NAME ": Rom window is closed\n"); + goto out; + } + window->phys -= 0x400000UL; + window->size = (0xffffffffUL - window->phys) + 1UL; + + /* Enable writes through the rom window */ + pci_read_config_word(pdev, BIOS_CNTL, &word); + if (!(word & 1) && (word & (1<<1))) { + /* The BIOS will generate an error if I enable + * this device, so don't even try. + */ + printk(KERN_ERR MOD_NAME ": firmware access control, I can't enable writes\n"); + goto out; + } + pci_write_config_word(pdev, BIOS_CNTL, word | 1); + + /* + * Try to reserve the window mem region. If this fails then + * it is likely due to the window being "reseved" by the BIOS. + */ + window->rsrc.name = MOD_NAME; + window->rsrc.start = window->phys; + window->rsrc.end = window->phys + window->size - 1; + window->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY; + if (request_resource(&iomem_resource, &window->rsrc)) { + window->rsrc.parent = NULL; + printk(KERN_DEBUG MOD_NAME + ": %s(): Unable to register resource" + " 0x%.08lx-0x%.08lx - kernel bug?\n", + __func__, + window->rsrc.start, window->rsrc.end); + } + + /* Map the firmware hub into my address space. */ + window->virt = ioremap_nocache(window->phys, window->size); + if (!window->virt) { + printk(KERN_ERR MOD_NAME ": ioremap(%08lx, %08lx) failed\n", + window->phys, window->size); + goto out; + } + + /* Get the first address to look for an rom chip at */ + map_top = window->phys; + if ((window->phys & 0x3fffff) != 0) { + map_top = window->phys + 0x400000; + } +#if 1 + /* The probe sequence run over the firmware hub lock + * registers sets them to 0x7 (no access). + * Probe at most the last 4M of the address space. + */ + if (map_top < 0xffc00000) { + map_top = 0xffc00000; + } +#endif + /* Loop through and look for rom chips */ + while((map_top - 1) < 0xffffffffUL) { + struct cfi_private *cfi; + unsigned long offset; + int i; + + if (!map) { + map = kmalloc(sizeof(*map), GFP_KERNEL); + } + if (!map) { + printk(KERN_ERR MOD_NAME ": kmalloc failed"); + goto out; + } + memset(map, 0, sizeof(*map)); + INIT_LIST_HEAD(&map->list); + map->map.name = map->map_name; + map->map.phys = map_top; + offset = map_top - window->phys; + map->map.virt = (void __iomem *) + (((unsigned long)(window->virt)) + offset); + map->map.size = 0xffffffffUL - map_top + 1UL; + /* Set the name of the map to the address I am trying */ + sprintf(map->map_name, "%s @%08lx", + MOD_NAME, map->map.phys); + + /* Firmware hubs only use vpp when being programmed + * in a factory setting. So in-place programming + * needs to use a different method. + */ + for(map->map.bankwidth = 32; map->map.bankwidth; + map->map.bankwidth >>= 1) + { + char **probe_type; + /* Skip bankwidths that are not supported */ + if (!map_bankwidth_supported(map->map.bankwidth)) + continue; + + /* Setup the map methods */ + simple_map_init(&map->map); + + /* Try all of the probe methods */ + probe_type = rom_probe_types; + for(; *probe_type; probe_type++) { + map->mtd = do_map_probe(*probe_type, &map->map); + if (map->mtd) + goto found; + } + } + map_top += ROM_PROBE_STEP_SIZE; + continue; + found: + /* Trim the size if we are larger than the map */ + if (map->mtd->size > map->map.size) { + printk(KERN_WARNING MOD_NAME + " rom(%u) larger than window(%lu). fixing...\n", + map->mtd->size, map->map.size); + map->mtd->size = map->map.size; + } + if (window->rsrc.parent) { + /* + * Registering the MTD device in iomem may not be possible + * if there is a BIOS "reserved" and BUSY range. If this + * fails then continue anyway. + */ + map->rsrc.name = map->map_name; + map->rsrc.start = map->map.phys; + map->rsrc.end = map->map.phys + map->mtd->size - 1; + map->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY; + if (request_resource(&window->rsrc, &map->rsrc)) { + printk(KERN_ERR MOD_NAME + ": cannot reserve MTD resource\n"); + map->rsrc.parent = NULL; + } + } + + /* Make the whole region visible in the map */ + map->map.virt = window->virt; + map->map.phys = window->phys; + cfi = map->map.fldrv_priv; + for(i = 0; i < cfi->numchips; i++) { + cfi->chips[i].start += offset; + } + + /* Now that the mtd devices is complete claim and export it */ + map->mtd->owner = THIS_MODULE; + if (add_mtd_device(map->mtd)) { + map_destroy(map->mtd); + map->mtd = NULL; + goto out; + } + + + /* Calculate the new value of map_top */ + map_top += map->mtd->size; + + /* File away the map structure */ + list_add(&map->list, &window->maps); + map = NULL; + } + + out: + /* Free any left over map structures */ + if (map) { + kfree(map); + } + /* See if I have any map structures */ + if (list_empty(&window->maps)) { + ichxrom_cleanup(window); + return -ENODEV; + } + return 0; +} + + +static void __devexit ichxrom_remove_one (struct pci_dev *pdev) +{ + struct ichxrom_window *window = &ichxrom_window; + ichxrom_cleanup(window); +} + +static struct pci_device_id ichxrom_pci_tbl[] __devinitdata = { + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, + PCI_ANY_ID, PCI_ANY_ID, }, + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, + PCI_ANY_ID, PCI_ANY_ID, }, + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, + PCI_ANY_ID, PCI_ANY_ID, }, + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, + PCI_ANY_ID, PCI_ANY_ID, }, + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, + PCI_ANY_ID, PCI_ANY_ID, }, + { 0, }, +}; + +MODULE_DEVICE_TABLE(pci, ichxrom_pci_tbl); + +#if 0 +static struct pci_driver ichxrom_driver = { + .name = MOD_NAME, + .id_table = ichxrom_pci_tbl, + .probe = ichxrom_init_one, + .remove = ichxrom_remove_one, +}; +#endif + +static int __init init_ichxrom(void) +{ + struct pci_dev *pdev; + struct pci_device_id *id; + + pdev = NULL; + for (id = ichxrom_pci_tbl; id->vendor; id++) { + pdev = pci_find_device(id->vendor, id->device, NULL); + if (pdev) { + break; + } + } + if (pdev) { + return ichxrom_init_one(pdev, &ichxrom_pci_tbl[0]); + } + return -ENXIO; +#if 0 + return pci_module_init(&ichxrom_driver); +#endif +} + +static void __exit cleanup_ichxrom(void) +{ + ichxrom_remove_one(ichxrom_window.pdev); +} + +module_init(init_ichxrom); +module_exit(cleanup_ichxrom); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Eric Biederman <ebiederman@lnxi.com>"); +MODULE_DESCRIPTION("MTD map driver for BIOS chips on the ICHX southbridge"); diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c new file mode 100644 index 00000000000..cb39172c81d --- /dev/null +++ b/drivers/mtd/maps/impa7.c @@ -0,0 +1,161 @@ +/* + * $Id: impa7.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $ + * + * Handle mapping of the NOR flash on implementa A7 boards + * + * Copyright 2002 SYSGO Real-Time Solutions GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/config.h> + +#ifdef CONFIG_MTD_PARTITIONS +#include <linux/mtd/partitions.h> +#endif + +#define WINDOW_ADDR0 0x00000000 /* physical properties of flash */ +#define WINDOW_SIZE0 0x00800000 +#define WINDOW_ADDR1 0x10000000 /* physical properties of flash */ +#define WINDOW_SIZE1 0x00800000 +#define NUM_FLASHBANKS 2 +#define BUSWIDTH 4 + +/* can be { "cfi_probe", "jedec_probe", "map_rom", NULL } */ +#define PROBETYPES { "jedec_probe", NULL } + +#define MSG_PREFIX "impA7:" /* prefix for our printk()'s */ +#define MTDID "impa7-%d" /* for mtdparts= partitioning */ + +static struct mtd_info *impa7_mtd[NUM_FLASHBANKS]; + + +static struct map_info impa7_map[NUM_FLASHBANKS] = { + { + .name = "impA7 NOR Flash Bank #0", + .size = WINDOW_SIZE0, + .bankwidth = BUSWIDTH, + }, + { + .name = "impA7 NOR Flash Bank #1", + .size = WINDOW_SIZE1, + .bankwidth = BUSWIDTH, + }, +}; + +#ifdef CONFIG_MTD_PARTITIONS + +/* + * MTD partitioning stuff + */ +static struct mtd_partition static_partitions[] = +{ + { + .name = "FileSystem", + .size = 0x800000, + .offset = 0x00000000 + }, +}; + +static int mtd_parts_nb[NUM_FLASHBANKS]; +static struct mtd_partition *mtd_parts[NUM_FLASHBANKS]; + +#endif + +static const char *probes[] = { "cmdlinepart", NULL }; + +int __init init_impa7(void) +{ + static const char *rom_probe_types[] = PROBETYPES; + const char **type; + const char *part_type = 0; + int i; + static struct { u_long addr; u_long size; } pt[NUM_FLASHBANKS] = { + { WINDOW_ADDR0, WINDOW_SIZE0 }, + { WINDOW_ADDR1, WINDOW_SIZE1 }, + }; + int devicesfound = 0; + + for(i=0; i<NUM_FLASHBANKS; i++) + { + printk(KERN_NOTICE MSG_PREFIX "probing 0x%08lx at 0x%08lx\n", + pt[i].size, pt[i].addr); + + impa7_map[i].phys = pt[i].addr; + impa7_map[i].virt = ioremap(pt[i].addr, pt[i].size); + if (!impa7_map[i].virt) { + printk(MSG_PREFIX "failed to ioremap\n"); + return -EIO; + } + simple_map_init(&impa7_map[i]); + + impa7_mtd[i] = 0; + type = rom_probe_types; + for(; !impa7_mtd[i] && *type; type++) { + impa7_mtd[i] = do_map_probe(*type, &impa7_map[i]); + } + + if (impa7_mtd[i]) { + impa7_mtd[i]->owner = THIS_MODULE; + devicesfound++; +#ifdef CONFIG_MTD_PARTITIONS + mtd_parts_nb[i] = parse_mtd_partitions(impa7_mtd[i], + probes, + &mtd_parts[i], + 0); + if (mtd_parts_nb[i] > 0) { + part_type = "command line"; + } else { + mtd_parts[i] = static_partitions; + mtd_parts_nb[i] = ARRAY_SIZE(static_partitions); + part_type = "static"; + } + + printk(KERN_NOTICE MSG_PREFIX + "using %s partition definition\n", + part_type); + add_mtd_partitions(impa7_mtd[i], + mtd_parts[i], mtd_parts_nb[i]); +#else + add_mtd_device(impa7_mtd[i]); + +#endif + } + else + iounmap((void *)impa7_map[i].virt); + } + return devicesfound == 0 ? -ENXIO : 0; +} + +static void __exit cleanup_impa7(void) +{ + int i; + for (i=0; i<NUM_FLASHBANKS; i++) { + if (impa7_mtd[i]) { +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(impa7_mtd[i]); +#else + del_mtd_device(impa7_mtd[i]); +#endif + map_destroy(impa7_mtd[i]); + iounmap((void *)impa7_map[i].virt); + impa7_map[i].virt = 0; + } + } +} + +module_init(init_impa7); +module_exit(cleanup_impa7); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Pavel Bartusek <pba@sysgo.de>"); +MODULE_DESCRIPTION("MTD map driver for implementa impA7"); diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c new file mode 100644 index 00000000000..e39a98a0171 --- /dev/null +++ b/drivers/mtd/maps/integrator-flash.c @@ -0,0 +1,217 @@ +/*====================================================================== + + drivers/mtd/maps/integrator-flash.c: ARM Integrator flash map driver + + Copyright (C) 2000 ARM Limited + Copyright (C) 2003 Deep Blue Solutions Ltd. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + This is access code for flashes using ARM's flash partitioning + standards. + + $Id: integrator-flash.c,v 1.18 2004/11/01 13:26:15 rmk Exp $ + +======================================================================*/ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/device.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/mach/flash.h> +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/system.h> + +#ifdef CONFIG_ARCH_P720T +#define FLASH_BASE (0x04000000) +#define FLASH_SIZE (64*1024*1024) +#endif + +struct armflash_info { + struct flash_platform_data *plat; + struct resource *res; + struct mtd_partition *parts; + struct mtd_info *mtd; + struct map_info map; +}; + +static void armflash_set_vpp(struct map_info *map, int on) +{ + struct armflash_info *info = container_of(map, struct armflash_info, map); + + if (info->plat && info->plat->set_vpp) + info->plat->set_vpp(on); +} + +static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL }; + +static int armflash_probe(struct device *_dev) +{ + struct platform_device *dev = to_platform_device(_dev); + struct flash_platform_data *plat = dev->dev.platform_data; + struct resource *res = dev->resource; + unsigned int size = res->end - res->start + 1; + struct armflash_info *info; + int err; + void __iomem *base; + + info = kmalloc(sizeof(struct armflash_info), GFP_KERNEL); + if (!info) { + err = -ENOMEM; + goto out; + } + + memset(info, 0, sizeof(struct armflash_info)); + + info->plat = plat; + if (plat && plat->init) { + err = plat->init(); + if (err) + goto no_resource; + } + + info->res = request_mem_region(res->start, size, "armflash"); + if (!info->res) { + err = -EBUSY; + goto no_resource; + } + + base = ioremap(res->start, size); + if (!base) { + err = -ENOMEM; + goto no_mem; + } + + /* + * look for CFI based flash parts fitted to this board + */ + info->map.size = size; + info->map.bankwidth = plat->width; + info->map.phys = res->start; + info->map.virt = base; + info->map.name = dev->dev.bus_id; + info->map.set_vpp = armflash_set_vpp; + + simple_map_init(&info->map); + + /* + * Also, the CFI layer automatically works out what size + * of chips we have, and does the necessary identification + * for us automatically. + */ + info->mtd = do_map_probe(plat->map_name, &info->map); + if (!info->mtd) { + err = -ENXIO; + goto no_device; + } + + info->mtd->owner = THIS_MODULE; + + err = parse_mtd_partitions(info->mtd, probes, &info->parts, 0); + if (err > 0) { + err = add_mtd_partitions(info->mtd, info->parts, err); + if (err) + printk(KERN_ERR + "mtd partition registration failed: %d\n", err); + } + + if (err == 0) + dev_set_drvdata(&dev->dev, info); + + /* + * If we got an error, free all resources. + */ + if (err < 0) { + if (info->mtd) { + del_mtd_partitions(info->mtd); + map_destroy(info->mtd); + } + if (info->parts) + kfree(info->parts); + + no_device: + iounmap(base); + no_mem: + release_mem_region(res->start, size); + no_resource: + if (plat && plat->exit) + plat->exit(); + kfree(info); + } + out: + return err; +} + +static int armflash_remove(struct device *_dev) +{ + struct platform_device *dev = to_platform_device(_dev); + struct armflash_info *info = dev_get_drvdata(&dev->dev); + + dev_set_drvdata(&dev->dev, NULL); + + if (info) { + if (info->mtd) { + del_mtd_partitions(info->mtd); + map_destroy(info->mtd); + } + if (info->parts) + kfree(info->parts); + + iounmap(info->map.virt); + release_resource(info->res); + kfree(info->res); + + if (info->plat && info->plat->exit) + info->plat->exit(); + + kfree(info); + } + + return 0; +} + +static struct device_driver armflash_driver = { + .name = "armflash", + .bus = &platform_bus_type, + .probe = armflash_probe, + .remove = armflash_remove, +}; + +static int __init armflash_init(void) +{ + return driver_register(&armflash_driver); +} + +static void __exit armflash_exit(void) +{ + driver_unregister(&armflash_driver); +} + +module_init(armflash_init); +module_exit(armflash_exit); + +MODULE_AUTHOR("ARM Ltd"); +MODULE_DESCRIPTION("ARM Integrator CFI map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c new file mode 100644 index 00000000000..71240181084 --- /dev/null +++ b/drivers/mtd/maps/ipaq-flash.c @@ -0,0 +1,464 @@ +/* + * Flash memory access on iPAQ Handhelds (either SA1100 or PXA250 based) + * + * (C) 2000 Nicolas Pitre <nico@cam.org> + * (C) 2002 Hewlett-Packard Company <jamey.hicks@hp.com> + * (C) 2003 Christian Pellegrin <chri@ascensit.com>, <chri@infis.univ.ts.it>: concatenation of multiple flashes + * + * $Id: ipaq-flash.c,v 1.3 2004/11/04 13:24:15 gleixner Exp $ + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <asm/page.h> +#include <asm/mach-types.h> +#include <asm/system.h> +#include <asm/errno.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#ifdef CONFIG_MTD_CONCAT +#include <linux/mtd/concat.h> +#endif + +#include <asm/hardware.h> +#include <asm/arch-sa1100/h3600.h> +#include <asm/io.h> + + +#ifndef CONFIG_IPAQ_HANDHELD +#error This is for iPAQ Handhelds only +#endif +#ifdef CONFIG_SA1100_JORNADA56X + +static void jornada56x_set_vpp(struct map_info *map, int vpp) +{ + if (vpp) + GPSR = GPIO_GPIO26; + else + GPCR = GPIO_GPIO26; + GPDR |= GPIO_GPIO26; +} + +#endif + +#ifdef CONFIG_SA1100_JORNADA720 + +static void jornada720_set_vpp(struct map_info *map, int vpp) +{ + if (vpp) + PPSR |= 0x80; + else + PPSR &= ~0x80; + PPDR |= 0x80; +} + +#endif + +#define MAX_IPAQ_CS 2 /* Number of CS we are going to test */ + +#define IPAQ_MAP_INIT(X) \ + { \ + name: "IPAQ flash " X, \ + } + + +static struct map_info ipaq_map[MAX_IPAQ_CS] = { + IPAQ_MAP_INIT("bank 1"), + IPAQ_MAP_INIT("bank 2") +}; + +static struct mtd_info *my_sub_mtd[MAX_IPAQ_CS] = { + NULL, + NULL +}; + +/* + * Here are partition information for all known IPAQ-based devices. + * See include/linux/mtd/partitions.h for definition of the mtd_partition + * structure. + * + * The *_max_flash_size is the maximum possible mapped flash size which + * is not necessarily the actual flash size. It must be no more than + * the value specified in the "struct map_desc *_io_desc" mapping + * definition for the corresponding machine. + * + * Please keep these in alphabetical order, and formatted as per existing + * entries. Thanks. + */ + +#ifdef CONFIG_IPAQ_HANDHELD +static unsigned long h3xxx_max_flash_size = 0x04000000; +static struct mtd_partition h3xxx_partitions[] = { + { + name: "H3XXX boot firmware", +#ifndef CONFIG_LAB + size: 0x00040000, +#else + size: 0x00080000, +#endif + offset: 0, +#ifndef CONFIG_LAB + mask_flags: MTD_WRITEABLE, /* force read-only */ +#endif + }, + { + name: "H3XXX root jffs2", +#ifndef CONFIG_LAB + size: 0x2000000 - 2*0x40000, /* Warning, this is fixed later */ + offset: 0x00040000, +#else + size: 0x2000000 - 0x40000 - 0x80000, /* Warning, this is fixed later */ + offset: 0x00080000, +#endif + }, + { + name: "asset", + size: 0x40000, + offset: 0x2000000 - 0x40000, /* Warning, this is fixed later */ + mask_flags: MTD_WRITEABLE, /* force read-only */ + } +}; + +#ifndef CONFIG_MTD_CONCAT +static struct mtd_partition h3xxx_partitions_bank2[] = { + /* this is used only on 2 CS machines when concat is not present */ + { + name: "second H3XXX root jffs2", + size: 0x1000000 - 0x40000, /* Warning, this is fixed later */ + offset: 0x00000000, + }, + { + name: "second asset", + size: 0x40000, + offset: 0x1000000 - 0x40000, /* Warning, this is fixed later */ + mask_flags: MTD_WRITEABLE, /* force read-only */ + } +}; +#endif + +static DEFINE_SPINLOCK(ipaq_vpp_lock); + +static void h3xxx_set_vpp(struct map_info *map, int vpp) +{ + static int nest = 0; + + spin_lock(&ipaq_vpp_lock); + if (vpp) + nest++; + else + nest--; + if (nest) + assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, 1); + else + assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, 0); + spin_unlock(&ipaq_vpp_lock); +} + +#endif + +#if defined(CONFIG_SA1100_JORNADA56X) || defined(CONFIG_SA1100_JORNADA720) +static unsigned long jornada_max_flash_size = 0x02000000; +static struct mtd_partition jornada_partitions[] = { + { + name: "Jornada boot firmware", + size: 0x00040000, + offset: 0, + mask_flags: MTD_WRITEABLE, /* force read-only */ + }, { + name: "Jornada root jffs2", + size: MTDPART_SIZ_FULL, + offset: 0x00040000, + } +}; +#endif + + +static struct mtd_partition *parsed_parts; +static struct mtd_info *mymtd; + +static unsigned long cs_phys[] = { +#ifdef CONFIG_ARCH_SA1100 + SA1100_CS0_PHYS, + SA1100_CS1_PHYS, + SA1100_CS2_PHYS, + SA1100_CS3_PHYS, + SA1100_CS4_PHYS, + SA1100_CS5_PHYS, +#else + PXA_CS0_PHYS, + PXA_CS1_PHYS, + PXA_CS2_PHYS, + PXA_CS3_PHYS, + PXA_CS4_PHYS, + PXA_CS5_PHYS, +#endif +}; + +static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; + +static int __init h1900_special_case(void); + +int __init ipaq_mtd_init(void) +{ + struct mtd_partition *parts = NULL; + int nb_parts = 0; + int parsed_nr_parts = 0; + const char *part_type; + int i; /* used when we have >1 flash chips */ + unsigned long tot_flashsize = 0; /* used when we have >1 flash chips */ + + /* Default flash bankwidth */ + // ipaq_map.bankwidth = (MSC0 & MSC_RBW) ? 2 : 4; + + if (machine_is_h1900()) + { + /* For our intents, the h1900 is not a real iPAQ, so we special-case it. */ + return h1900_special_case(); + } + + if (machine_is_h3100() || machine_is_h1900()) + for(i=0; i<MAX_IPAQ_CS; i++) + ipaq_map[i].bankwidth = 2; + else + for(i=0; i<MAX_IPAQ_CS; i++) + ipaq_map[i].bankwidth = 4; + + /* + * Static partition definition selection + */ + part_type = "static"; + + simple_map_init(&ipaq_map[0]); + simple_map_init(&ipaq_map[1]); + +#ifdef CONFIG_IPAQ_HANDHELD + if (machine_is_ipaq()) { + parts = h3xxx_partitions; + nb_parts = ARRAY_SIZE(h3xxx_partitions); + for(i=0; i<MAX_IPAQ_CS; i++) { + ipaq_map[i].size = h3xxx_max_flash_size; + ipaq_map[i].set_vpp = h3xxx_set_vpp; + ipaq_map[i].phys = cs_phys[i]; + ipaq_map[i].virt = __ioremap(cs_phys[i], 0x04000000, 0, 1); + if (machine_is_h3100 () || machine_is_h1900()) + ipaq_map[i].bankwidth = 2; + } + if (machine_is_h3600()) { + /* No asset partition here */ + h3xxx_partitions[1].size += 0x40000; + nb_parts--; + } + } +#endif +#ifdef CONFIG_ARCH_H5400 + if (machine_is_h5400()) { + ipaq_map[0].size = 0x02000000; + ipaq_map[1].size = 0x02000000; + ipaq_map[1].phys = 0x02000000; + ipaq_map[1].virt = ipaq_map[0].virt + 0x02000000; + } +#endif +#ifdef CONFIG_ARCH_H1900 + if (machine_is_h1900()) { + ipaq_map[0].size = 0x00400000; + ipaq_map[1].size = 0x02000000; + ipaq_map[1].phys = 0x00080000; + ipaq_map[1].virt = ipaq_map[0].virt + 0x00080000; + } +#endif + +#ifdef CONFIG_SA1100_JORNADA56X + if (machine_is_jornada56x()) { + parts = jornada_partitions; + nb_parts = ARRAY_SIZE(jornada_partitions); + ipaq_map[0].size = jornada_max_flash_size; + ipaq_map[0].set_vpp = jornada56x_set_vpp; + ipaq_map[0].virt = (__u32)__ioremap(0x0, 0x04000000, 0, 1); + } +#endif +#ifdef CONFIG_SA1100_JORNADA720 + if (machine_is_jornada720()) { + parts = jornada_partitions; + nb_parts = ARRAY_SIZE(jornada_partitions); + ipaq_map[0].size = jornada_max_flash_size; + ipaq_map[0].set_vpp = jornada720_set_vpp; + } +#endif + + + if (machine_is_ipaq()) { /* for iPAQs only */ + for(i=0; i<MAX_IPAQ_CS; i++) { + printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with CFI.\n", ipaq_map[i].bankwidth*8, ipaq_map[i].virt); + my_sub_mtd[i] = do_map_probe("cfi_probe", &ipaq_map[i]); + if (!my_sub_mtd[i]) { + printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with JEDEC.\n", ipaq_map[i].bankwidth*8, ipaq_map[i].virt); + my_sub_mtd[i] = do_map_probe("jedec_probe", &ipaq_map[i]); + } + if (!my_sub_mtd[i]) { + printk(KERN_NOTICE "iPAQ flash: failed to find flash.\n"); + if (i) + break; + else + return -ENXIO; + } else + printk(KERN_NOTICE "iPAQ flash: found %d bytes\n", my_sub_mtd[i]->size); + + /* do we really need this debugging? --joshua 20030703 */ + // printk("my_sub_mtd[%d]=%p\n", i, my_sub_mtd[i]); + my_sub_mtd[i]->owner = THIS_MODULE; + tot_flashsize += my_sub_mtd[i]->size; + } +#ifdef CONFIG_MTD_CONCAT + /* fix the asset location */ +# ifdef CONFIG_LAB + h3xxx_partitions[1].size = tot_flashsize - 0x40000 - 0x80000 /* extra big boot block */; +# else + h3xxx_partitions[1].size = tot_flashsize - 2 * 0x40000; +# endif + h3xxx_partitions[2].offset = tot_flashsize - 0x40000; + /* and concat the devices */ + mymtd = mtd_concat_create(&my_sub_mtd[0], i, + "ipaq"); + if (!mymtd) { + printk("Cannot create iPAQ concat device\n"); + return -ENXIO; + } +#else + mymtd = my_sub_mtd[0]; + + /* + *In the very near future, command line partition parsing + * will use the device name as 'mtd-id' instead of a value + * passed to the parse_cmdline_partitions() routine. Since + * the bootldr says 'ipaq', make sure it continues to work. + */ + mymtd->name = "ipaq"; + + if ((machine_is_h3600())) { +# ifdef CONFIG_LAB + h3xxx_partitions[1].size = my_sub_mtd[0]->size - 0x80000; +# else + h3xxx_partitions[1].size = my_sub_mtd[0]->size - 0x40000; +# endif + nb_parts = 2; + } else { +# ifdef CONFIG_LAB + h3xxx_partitions[1].size = my_sub_mtd[0]->size - 0x40000 - 0x80000; /* extra big boot block */ +# else + h3xxx_partitions[1].size = my_sub_mtd[0]->size - 2*0x40000; +# endif + h3xxx_partitions[2].offset = my_sub_mtd[0]->size - 0x40000; + } + + if (my_sub_mtd[1]) { +# ifdef CONFIG_LAB + h3xxx_partitions_bank2[0].size = my_sub_mtd[1]->size - 0x80000; +# else + h3xxx_partitions_bank2[0].size = my_sub_mtd[1]->size - 0x40000; +# endif + h3xxx_partitions_bank2[1].offset = my_sub_mtd[1]->size - 0x40000; + } +#endif + } + else { + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + printk(KERN_NOTICE "IPAQ flash: probing %d-bit flash bus, window=%lx\n", ipaq_map[0].bankwidth*8, ipaq_map[0].virt); + mymtd = do_map_probe("cfi_probe", &ipaq_map[0]); + if (!mymtd) + return -ENXIO; + mymtd->owner = THIS_MODULE; + } + + + /* + * Dynamic partition selection stuff (might override the static ones) + */ + + i = parse_mtd_partitions(mymtd, part_probes, &parsed_parts, 0); + + if (i > 0) { + nb_parts = parsed_nr_parts = i; + parts = parsed_parts; + part_type = "dynamic"; + } + + if (!parts) { + printk(KERN_NOTICE "IPAQ flash: no partition info available, registering whole flash at once\n"); + add_mtd_device(mymtd); +#ifndef CONFIG_MTD_CONCAT + if (my_sub_mtd[1]) + add_mtd_device(my_sub_mtd[1]); +#endif + } else { + printk(KERN_NOTICE "Using %s partition definition\n", part_type); + add_mtd_partitions(mymtd, parts, nb_parts); +#ifndef CONFIG_MTD_CONCAT + if (my_sub_mtd[1]) + add_mtd_partitions(my_sub_mtd[1], h3xxx_partitions_bank2, ARRAY_SIZE(h3xxx_partitions_bank2)); +#endif + } + + return 0; +} + +static void __exit ipaq_mtd_cleanup(void) +{ + int i; + + if (mymtd) { + del_mtd_partitions(mymtd); +#ifndef CONFIG_MTD_CONCAT + if (my_sub_mtd[1]) + del_mtd_partitions(my_sub_mtd[1]); +#endif + map_destroy(mymtd); +#ifdef CONFIG_MTD_CONCAT + for(i=0; i<MAX_IPAQ_CS; i++) +#else + for(i=1; i<MAX_IPAQ_CS; i++) +#endif + { + if (my_sub_mtd[i]) + map_destroy(my_sub_mtd[i]); + } + if (parsed_parts) + kfree(parsed_parts); + } +} + +static int __init h1900_special_case(void) +{ + /* The iPAQ h1900 is a special case - it has weird ROM. */ + simple_map_init(&ipaq_map[0]); + ipaq_map[0].size = 0x80000; + ipaq_map[0].set_vpp = h3xxx_set_vpp; + ipaq_map[0].phys = 0x0; + ipaq_map[0].virt = __ioremap(0x0, 0x04000000, 0, 1); + ipaq_map[0].bankwidth = 2; + + printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with JEDEC.\n", ipaq_map[0].bankwidth*8, ipaq_map[0].virt); + mymtd = do_map_probe("jedec_probe", &ipaq_map[0]); + if (!mymtd) + return -ENODEV; + add_mtd_device(mymtd); + printk(KERN_NOTICE "iPAQ flash: registered h1910 flash\n"); + + return 0; +} + +module_init(ipaq_mtd_init); +module_exit(ipaq_mtd_cleanup); + +MODULE_AUTHOR("Jamey Hicks"); +MODULE_DESCRIPTION("IPAQ CFI map driver"); +MODULE_LICENSE("MIT"); diff --git a/drivers/mtd/maps/iq80310.c b/drivers/mtd/maps/iq80310.c new file mode 100644 index 00000000000..558d014e7ac --- /dev/null +++ b/drivers/mtd/maps/iq80310.c @@ -0,0 +1,119 @@ +/* + * $Id: iq80310.c,v 1.20 2004/11/04 13:24:15 gleixner Exp $ + * + * Mapping for the Intel XScale IQ80310 evaluation board + * + * Author: Nicolas Pitre + * Copyright: (C) 2001 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + +#define WINDOW_ADDR 0 +#define WINDOW_SIZE 8*1024*1024 +#define BUSWIDTH 1 + +static struct mtd_info *mymtd; + +static struct map_info iq80310_map = { + .name = "IQ80310 flash", + .size = WINDOW_SIZE, + .bankwidth = BUSWIDTH, + .phys = WINDOW_ADDR +}; + +static struct mtd_partition iq80310_partitions[4] = { + { + .name = "Firmware", + .size = 0x00080000, + .offset = 0, + .mask_flags = MTD_WRITEABLE /* force read-only */ + },{ + .name = "Kernel", + .size = 0x000a0000, + .offset = 0x00080000, + },{ + .name = "Filesystem", + .size = 0x00600000, + .offset = 0x00120000 + },{ + .name = "RedBoot", + .size = 0x000e0000, + .offset = 0x00720000, + .mask_flags = MTD_WRITEABLE + } +}; + +static struct mtd_info *mymtd; +static struct mtd_partition *parsed_parts; +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + +static int __init init_iq80310(void) +{ + struct mtd_partition *parts; + int nb_parts = 0; + int parsed_nr_parts = 0; + int ret; + + iq80310_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); + if (!iq80310_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + simple_map_init(&iq80310_map); + + mymtd = do_map_probe("cfi_probe", &iq80310_map); + if (!mymtd) { + iounmap((void *)iq80310_map.virt); + return -ENXIO; + } + mymtd->owner = THIS_MODULE; + + ret = parse_mtd_partitions(mymtd, probes, &parsed_parts, 0); + + if (ret > 0) + parsed_nr_parts = ret; + + if (parsed_nr_parts > 0) { + parts = parsed_parts; + nb_parts = parsed_nr_parts; + } else { + parts = iq80310_partitions; + nb_parts = ARRAY_SIZE(iq80310_partitions); + } + add_mtd_partitions(mymtd, parts, nb_parts); + return 0; +} + +static void __exit cleanup_iq80310(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + if (parsed_parts) + kfree(parsed_parts); + } + if (iq80310_map.virt) + iounmap((void *)iq80310_map.virt); +} + +module_init(init_iq80310); +module_exit(cleanup_iq80310); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>"); +MODULE_DESCRIPTION("MTD map driver for Intel XScale IQ80310 evaluation board"); diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c new file mode 100644 index 00000000000..c5b5f447e34 --- /dev/null +++ b/drivers/mtd/maps/ixp2000.c @@ -0,0 +1,280 @@ +/* + * $Id: ixp2000.c,v 1.5 2004/11/16 17:15:48 dsaxena Exp $ + * + * drivers/mtd/maps/ixp2000.c + * + * Mapping for the Intel XScale IXP2000 based systems + * + * Copyright (C) 2002 Intel Corp. + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com> + * Maintainer: Deepak Saxena <dsaxena@plexity.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/ioport.h> +#include <linux/device.h> + +#include <asm/io.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/flash.h> + +#include <linux/reboot.h> + +struct ixp2000_flash_info { + struct mtd_info *mtd; + struct map_info map; + struct mtd_partition *partitions; + struct resource *res; + int nr_banks; +}; + +static inline unsigned long flash_bank_setup(struct map_info *map, unsigned long ofs) +{ + unsigned long (*set_bank)(unsigned long) = + (unsigned long(*)(unsigned long))map->map_priv_2; + + return (set_bank ? set_bank(ofs) : ofs); +} + +#ifdef __ARMEB__ +/* + * Rev A0 and A1 of IXP2400 silicon have a broken addressing unit which + * causes the lower address bits to be XORed with 0x11 on 8 bit accesses + * and XORed with 0x10 on 16 bit accesses. See the spec update, erratum 44. + */ +static int erratum44_workaround = 0; + +static inline unsigned long address_fix8_write(unsigned long addr) +{ + if (erratum44_workaround) { + return (addr ^ 3); + } + return addr; +} +#else + +#define address_fix8_write(x) (x) +#endif + +static map_word ixp2000_flash_read8(struct map_info *map, unsigned long ofs) +{ + map_word val; + + val.x[0] = *((u8 *)(map->map_priv_1 + flash_bank_setup(map, ofs))); + return val; +} + +/* + * We can't use the standard memcpy due to the broken SlowPort + * address translation on rev A0 and A1 silicon and the fact that + * we have banked flash. + */ +static void ixp2000_flash_copy_from(struct map_info *map, void *to, + unsigned long from, ssize_t len) +{ + from = flash_bank_setup(map, from); + while(len--) + *(__u8 *) to++ = *(__u8 *)(map->map_priv_1 + from++); +} + +static void ixp2000_flash_write8(struct map_info *map, map_word d, unsigned long ofs) +{ + *(__u8 *) (address_fix8_write(map->map_priv_1 + + flash_bank_setup(map, ofs))) = d.x[0]; +} + +static void ixp2000_flash_copy_to(struct map_info *map, unsigned long to, + const void *from, ssize_t len) +{ + to = flash_bank_setup(map, to); + while(len--) { + unsigned long tmp = address_fix8_write(map->map_priv_1 + to++); + *(__u8 *)(tmp) = *(__u8 *)(from++); + } +} + + +static int ixp2000_flash_remove(struct device *_dev) +{ + struct platform_device *dev = to_platform_device(_dev); + struct flash_platform_data *plat = dev->dev.platform_data; + struct ixp2000_flash_info *info = dev_get_drvdata(&dev->dev); + + dev_set_drvdata(&dev->dev, NULL); + + if(!info) + return 0; + + if (info->mtd) { + del_mtd_partitions(info->mtd); + map_destroy(info->mtd); + } + if (info->map.map_priv_1) + iounmap((void *) info->map.map_priv_1); + + if (info->partitions) { + kfree(info->partitions); } + + if (info->res) { + release_resource(info->res); + kfree(info->res); + } + + if (plat->exit) + plat->exit(); + + return 0; +} + + +static int ixp2000_flash_probe(struct device *_dev) +{ + static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + struct platform_device *dev = to_platform_device(_dev); + struct ixp2000_flash_data *ixp_data = dev->dev.platform_data; + struct flash_platform_data *plat; + struct ixp2000_flash_info *info; + unsigned long window_size; + int err = -1; + + if (!ixp_data) + return -ENODEV; + + plat = ixp_data->platform_data; + if (!plat) + return -ENODEV; + + window_size = dev->resource->end - dev->resource->start + 1; + dev_info(_dev, "Probe of IXP2000 flash(%d banks x %dMiB)\n", + ixp_data->nr_banks, ((u32)window_size >> 20)); + + if (plat->width != 1) { + dev_err(_dev, "IXP2000 MTD map only supports 8-bit mode, asking for %d\n", + plat->width * 8); + return -EIO; + } + + info = kmalloc(sizeof(struct ixp2000_flash_info), GFP_KERNEL); + if(!info) { + err = -ENOMEM; + goto Error; + } + memzero(info, sizeof(struct ixp2000_flash_info)); + + dev_set_drvdata(&dev->dev, info); + + /* + * Tell the MTD layer we're not 1:1 mapped so that it does + * not attempt to do a direct access on us. + */ + info->map.phys = NO_XIP; + + info->nr_banks = ixp_data->nr_banks; + info->map.size = ixp_data->nr_banks * window_size; + info->map.bankwidth = 1; + + /* + * map_priv_2 is used to store a ptr to to the bank_setup routine + */ + info->map.map_priv_2 = (void __iomem *) ixp_data->bank_setup; + + info->map.name = dev->dev.bus_id; + info->map.read = ixp2000_flash_read8; + info->map.write = ixp2000_flash_write8; + info->map.copy_from = ixp2000_flash_copy_from; + info->map.copy_to = ixp2000_flash_copy_to; + + info->res = request_mem_region(dev->resource->start, + dev->resource->end - dev->resource->start + 1, + dev->dev.bus_id); + if (!info->res) { + dev_err(_dev, "Could not reserve memory region\n"); + err = -ENOMEM; + goto Error; + } + + info->map.map_priv_1 = ioremap(dev->resource->start, + dev->resource->end - dev->resource->start + 1); + if (!info->map.map_priv_1) { + dev_err(_dev, "Failed to ioremap flash region\n"); + err = -EIO; + goto Error; + } + + /* + * Setup read mode for FLASH + */ + *IXP2000_SLOWPORT_FRM = 1; + +#if defined(__ARMEB__) + /* + * Enable erratum 44 workaround for NPUs with broken slowport + */ + + erratum44_workaround = ixp2000_has_broken_slowport(); + dev_info(_dev, "Erratum 44 workaround %s\n", + erratum44_workaround ? "enabled" : "disabled"); +#endif + + info->mtd = do_map_probe(plat->map_name, &info->map); + if (!info->mtd) { + dev_err(_dev, "map_probe failed\n"); + err = -ENXIO; + goto Error; + } + info->mtd->owner = THIS_MODULE; + + err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); + if (err > 0) { + err = add_mtd_partitions(info->mtd, info->partitions, err); + if(err) + dev_err(_dev, "Could not parse partitions\n"); + } + + if (err) + goto Error; + + return 0; + +Error: + ixp2000_flash_remove(_dev); + return err; +} + +static struct device_driver ixp2000_flash_driver = { + .name = "IXP2000-Flash", + .bus = &platform_bus_type, + .probe = &ixp2000_flash_probe, + .remove = &ixp2000_flash_remove +}; + +static int __init ixp2000_flash_init(void) +{ + return driver_register(&ixp2000_flash_driver); +} + +static void __exit ixp2000_flash_exit(void) +{ + driver_unregister(&ixp2000_flash_driver); +} + +module_init(ixp2000_flash_init); +module_exit(ixp2000_flash_exit); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>"); + diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c new file mode 100644 index 00000000000..5afe660aa2c --- /dev/null +++ b/drivers/mtd/maps/ixp4xx.c @@ -0,0 +1,259 @@ +/* + * $Id: ixp4xx.c,v 1.7 2004/11/04 13:24:15 gleixner Exp $ + * + * drivers/mtd/maps/ixp4xx.c + * + * MTD Map file for IXP4XX based systems. Please do not make per-board + * changes in here. If your board needs special setup, do it in your + * platform level code in arch/arm/mach-ixp4xx/board-setup.c + * + * Original Author: Intel Corporation + * Maintainer: Deepak Saxena <dsaxena@mvista.com> + * + * Copyright (C) 2002 Intel Corporation + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/ioport.h> +#include <linux/device.h> +#include <asm/io.h> +#include <asm/mach-types.h> +#include <asm/mach/flash.h> + +#include <linux/reboot.h> + +#ifndef __ARMEB__ +#define BYTE0(h) ((h) & 0xFF) +#define BYTE1(h) (((h) >> 8) & 0xFF) +#else +#define BYTE0(h) (((h) >> 8) & 0xFF) +#define BYTE1(h) ((h) & 0xFF) +#endif + +static map_word ixp4xx_read16(struct map_info *map, unsigned long ofs) +{ + map_word val; + val.x[0] = *(__u16 *) (map->map_priv_1 + ofs); + return val; +} + +/* + * The IXP4xx expansion bus only allows 16-bit wide acceses + * when attached to a 16-bit wide device (such as the 28F128J3A), + * so we can't just memcpy_fromio(). + */ +static void ixp4xx_copy_from(struct map_info *map, void *to, + unsigned long from, ssize_t len) +{ + int i; + u8 *dest = (u8 *) to; + u16 *src = (u16 *) (map->map_priv_1 + from); + u16 data; + + for (i = 0; i < (len / 2); i++) { + data = src[i]; + dest[i * 2] = BYTE0(data); + dest[i * 2 + 1] = BYTE1(data); + } + + if (len & 1) + dest[len - 1] = BYTE0(src[i]); +} + +/* + * Unaligned writes are ignored, causing the 8-bit + * probe to fail and proceed to the 16-bit probe (which succeeds). + */ +static void ixp4xx_probe_write16(struct map_info *map, map_word d, unsigned long adr) +{ + if (!(adr & 1)) + *(__u16 *) (map->map_priv_1 + adr) = d.x[0]; +} + +/* + * Fast write16 function without the probing check above + */ +static void ixp4xx_write16(struct map_info *map, map_word d, unsigned long adr) +{ + *(__u16 *) (map->map_priv_1 + adr) = d.x[0]; +} + +struct ixp4xx_flash_info { + struct mtd_info *mtd; + struct map_info map; + struct mtd_partition *partitions; + struct resource *res; +}; + +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + +static int ixp4xx_flash_remove(struct device *_dev) +{ + struct platform_device *dev = to_platform_device(_dev); + struct flash_platform_data *plat = dev->dev.platform_data; + struct ixp4xx_flash_info *info = dev_get_drvdata(&dev->dev); + map_word d; + + dev_set_drvdata(&dev->dev, NULL); + + if(!info) + return 0; + + /* + * This is required for a soft reboot to work. + */ + d.x[0] = 0xff; + ixp4xx_write16(&info->map, d, 0x55 * 0x2); + + if (info->mtd) { + del_mtd_partitions(info->mtd); + map_destroy(info->mtd); + } + if (info->map.map_priv_1) + iounmap((void *) info->map.map_priv_1); + + if (info->partitions) + kfree(info->partitions); + + if (info->res) { + release_resource(info->res); + kfree(info->res); + } + + if (plat->exit) + plat->exit(); + + /* Disable flash write */ + *IXP4XX_EXP_CS0 &= ~IXP4XX_FLASH_WRITABLE; + + return 0; +} + +static int ixp4xx_flash_probe(struct device *_dev) +{ + struct platform_device *dev = to_platform_device(_dev); + struct flash_platform_data *plat = dev->dev.platform_data; + struct ixp4xx_flash_info *info; + int err = -1; + + if (!plat) + return -ENODEV; + + if (plat->init) { + err = plat->init(); + if (err) + return err; + } + + info = kmalloc(sizeof(struct ixp4xx_flash_info), GFP_KERNEL); + if(!info) { + err = -ENOMEM; + goto Error; + } + memzero(info, sizeof(struct ixp4xx_flash_info)); + + dev_set_drvdata(&dev->dev, info); + + /* + * Enable flash write + * TODO: Move this out to board specific code + */ + *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE; + + /* + * Tell the MTD layer we're not 1:1 mapped so that it does + * not attempt to do a direct access on us. + */ + info->map.phys = NO_XIP; + info->map.size = dev->resource->end - dev->resource->start + 1; + + /* + * We only support 16-bit accesses for now. If and when + * any board use 8-bit access, we'll fixup the driver to + * handle that. + */ + info->map.bankwidth = 2; + info->map.name = dev->dev.bus_id; + info->map.read = ixp4xx_read16, + info->map.write = ixp4xx_probe_write16, + info->map.copy_from = ixp4xx_copy_from, + + info->res = request_mem_region(dev->resource->start, + dev->resource->end - dev->resource->start + 1, + "IXP4XXFlash"); + if (!info->res) { + printk(KERN_ERR "IXP4XXFlash: Could not reserve memory region\n"); + err = -ENOMEM; + goto Error; + } + + info->map.map_priv_1 = ioremap(dev->resource->start, + dev->resource->end - dev->resource->start + 1); + if (!info->map.map_priv_1) { + printk(KERN_ERR "IXP4XXFlash: Failed to ioremap region\n"); + err = -EIO; + goto Error; + } + + info->mtd = do_map_probe(plat->map_name, &info->map); + if (!info->mtd) { + printk(KERN_ERR "IXP4XXFlash: map_probe failed\n"); + err = -ENXIO; + goto Error; + } + info->mtd->owner = THIS_MODULE; + + /* Use the fast version */ + info->map.write = ixp4xx_write16, + + err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); + if (err > 0) { + err = add_mtd_partitions(info->mtd, info->partitions, err); + if(err) + printk(KERN_ERR "Could not parse partitions\n"); + } + + if (err) + goto Error; + + return 0; + +Error: + ixp4xx_flash_remove(_dev); + return err; +} + +static struct device_driver ixp4xx_flash_driver = { + .name = "IXP4XX-Flash", + .bus = &platform_bus_type, + .probe = ixp4xx_flash_probe, + .remove = ixp4xx_flash_remove, +}; + +static int __init ixp4xx_flash_init(void) +{ + return driver_register(&ixp4xx_flash_driver); +} + +static void __exit ixp4xx_flash_exit(void) +{ + driver_unregister(&ixp4xx_flash_driver); +} + + +module_init(ixp4xx_flash_init); +module_exit(ixp4xx_flash_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("MTD map driver for Intel IXP4xx systems") +MODULE_AUTHOR("Deepak Saxena"); + diff --git a/drivers/mtd/maps/l440gx.c b/drivers/mtd/maps/l440gx.c new file mode 100644 index 00000000000..b08668212ab --- /dev/null +++ b/drivers/mtd/maps/l440gx.c @@ -0,0 +1,157 @@ +/* + * $Id: l440gx.c,v 1.17 2004/11/28 09:40:39 dwmw2 Exp $ + * + * BIOS Flash chip on Intel 440GX board. + * + * Bugs this currently does not work under linuxBIOS. + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/config.h> + +#define PIIXE_IOBASE_RESOURCE 11 + +#define WINDOW_ADDR 0xfff00000 +#define WINDOW_SIZE 0x00100000 +#define BUSWIDTH 1 + +static u32 iobase; +#define IOBASE iobase +#define TRIBUF_PORT (IOBASE+0x37) +#define VPP_PORT (IOBASE+0x28) + +static struct mtd_info *mymtd; + + +/* Is this really the vpp port? */ +static void l440gx_set_vpp(struct map_info *map, int vpp) +{ + unsigned long l; + + l = inl(VPP_PORT); + if (vpp) { + l |= 1; + } else { + l &= ~1; + } + outl(l, VPP_PORT); +} + +static struct map_info l440gx_map = { + .name = "L440GX BIOS", + .size = WINDOW_SIZE, + .bankwidth = BUSWIDTH, + .phys = WINDOW_ADDR, +#if 0 + /* FIXME verify that this is the + * appripriate code for vpp enable/disable + */ + .set_vpp = l440gx_set_vpp +#endif +}; + +static int __init init_l440gx(void) +{ + struct pci_dev *dev, *pm_dev; + struct resource *pm_iobase; + __u16 word; + + dev = pci_find_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_0, NULL); + + pm_dev = pci_find_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + + if (!dev || !pm_dev) { + printk(KERN_NOTICE "L440GX flash mapping: failed to find PIIX4 ISA bridge, cannot continue\n"); + return -ENODEV; + } + + l440gx_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE); + + if (!l440gx_map.virt) { + printk(KERN_WARNING "Failed to ioremap L440GX flash region\n"); + return -ENOMEM; + } + simple_map_init(&l440gx_map); + printk(KERN_NOTICE "window_addr = 0x%08lx\n", (unsigned long)l440gx_map.virt); + + /* Setup the pm iobase resource + * This code should move into some kind of generic bridge + * driver but for the moment I'm content with getting the + * allocation correct. + */ + pm_iobase = &pm_dev->resource[PIIXE_IOBASE_RESOURCE]; + if (!(pm_iobase->flags & IORESOURCE_IO)) { + pm_iobase->name = "pm iobase"; + pm_iobase->start = 0; + pm_iobase->end = 63; + pm_iobase->flags = IORESOURCE_IO; + + /* Put the current value in the resource */ + pci_read_config_dword(pm_dev, 0x40, &iobase); + iobase &= ~1; + pm_iobase->start += iobase & ~1; + pm_iobase->end += iobase & ~1; + + /* Allocate the resource region */ + if (pci_assign_resource(pm_dev, PIIXE_IOBASE_RESOURCE) != 0) { + printk(KERN_WARNING "Could not allocate pm iobase resource\n"); + iounmap(l440gx_map.virt); + return -ENXIO; + } + } + /* Set the iobase */ + iobase = pm_iobase->start; + pci_write_config_dword(pm_dev, 0x40, iobase | 1); + + + /* Set XBCS# */ + pci_read_config_word(dev, 0x4e, &word); + word |= 0x4; + pci_write_config_word(dev, 0x4e, word); + + /* Supply write voltage to the chip */ + l440gx_set_vpp(&l440gx_map, 1); + + /* Enable the gate on the WE line */ + outb(inb(TRIBUF_PORT) & ~1, TRIBUF_PORT); + + printk(KERN_NOTICE "Enabled WE line to L440GX BIOS flash chip.\n"); + + mymtd = do_map_probe("jedec_probe", &l440gx_map); + if (!mymtd) { + printk(KERN_NOTICE "JEDEC probe on BIOS chip failed. Using ROM\n"); + mymtd = do_map_probe("map_rom", &l440gx_map); + } + if (mymtd) { + mymtd->owner = THIS_MODULE; + + add_mtd_device(mymtd); + return 0; + } + + iounmap(l440gx_map.virt); + return -ENXIO; +} + +static void __exit cleanup_l440gx(void) +{ + del_mtd_device(mymtd); + map_destroy(mymtd); + + iounmap(l440gx_map.virt); +} + +module_init(init_l440gx); +module_exit(cleanup_l440gx); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); +MODULE_DESCRIPTION("MTD map driver for BIOS chips on Intel L440GX motherboards"); diff --git a/drivers/mtd/maps/lasat.c b/drivers/mtd/maps/lasat.c new file mode 100644 index 00000000000..c658d4045ef --- /dev/null +++ b/drivers/mtd/maps/lasat.c @@ -0,0 +1,102 @@ +/* + * Flash device on Lasat 100 and 200 boards + * + * (C) 2002 Brian Murphy <brian@murphy.dk> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * $Id: lasat.c,v 1.9 2004/11/04 13:24:15 gleixner Exp $ + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <asm/lasat/lasat.h> + +static struct mtd_info *lasat_mtd; + +static struct mtd_partition partition_info[LASAT_MTD_LAST]; +static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Filesystem", "Config"}; + +static void lasat_set_vpp(struct map_info *map, int vpp) +{ + if (vpp) + *lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit; + else + *lasat_misc->flash_wp_reg &= ~(1 << lasat_misc->flash_wp_bit); +} + +static struct map_info lasat_map = { + .name = "LASAT flash", + .bankwidth = 4, + .set_vpp = lasat_set_vpp +}; + +static int __init init_lasat(void) +{ + int i; + /* since we use AMD chips and set_vpp is not implimented + * for these (yet) we still have to permanently enable flash write */ + printk(KERN_NOTICE "Unprotecting flash\n"); + ENABLE_VPP((&lasat_map)); + + lasat_map.phys = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER); + lasat_map.virt = ioremap_nocache( + lasat_map.phys, lasat_board_info.li_flash_size); + lasat_map.size = lasat_board_info.li_flash_size; + + simple_map_init(&lasat_map); + + for (i=0; i < LASAT_MTD_LAST; i++) + partition_info[i].name = lasat_mtd_partnames[i]; + + lasat_mtd = do_map_probe("cfi_probe", &lasat_map); + + if (!lasat_mtd) + lasat_mtd = do_map_probe("jedec_probe", &lasat_map); + + if (lasat_mtd) { + u32 size, offset = 0; + + lasat_mtd->owner = THIS_MODULE; + + for (i=0; i < LASAT_MTD_LAST; i++) { + size = lasat_flash_partition_size(i); + partition_info[i].size = size; + partition_info[i].offset = offset; + offset += size; + } + + add_mtd_partitions( lasat_mtd, partition_info, LASAT_MTD_LAST ); + return 0; + } + + return -ENXIO; +} + +static void __exit cleanup_lasat(void) +{ + if (lasat_mtd) { + del_mtd_partitions(lasat_mtd); + map_destroy(lasat_mtd); + } + if (lasat_map.virt) { + lasat_map.virt = 0; + } +} + +module_init(init_lasat); +module_exit(cleanup_lasat); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Brian Murphy <brian@murphy.dk>"); +MODULE_DESCRIPTION("Lasat Safepipe/Masquerade MTD map driver"); diff --git a/drivers/mtd/maps/lubbock-flash.c b/drivers/mtd/maps/lubbock-flash.c new file mode 100644 index 00000000000..1298de475c9 --- /dev/null +++ b/drivers/mtd/maps/lubbock-flash.c @@ -0,0 +1,168 @@ +/* + * $Id: lubbock-flash.c,v 1.19 2004/11/04 13:24:15 gleixner Exp $ + * + * Map driver for the Lubbock developer platform. + * + * Author: Nicolas Pitre + * Copyright: (C) 2001 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/dma-mapping.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <asm/io.h> +#include <asm/hardware.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/lubbock.h> + + +#define ROM_ADDR 0x00000000 +#define FLASH_ADDR 0x04000000 + +#define WINDOW_SIZE 64*1024*1024 + +static void lubbock_map_inval_cache(struct map_info *map, unsigned long from, ssize_t len) +{ + consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE); +} + +static struct map_info lubbock_maps[2] = { { + .size = WINDOW_SIZE, + .phys = 0x00000000, + .inval_cache = lubbock_map_inval_cache, +}, { + .size = WINDOW_SIZE, + .phys = 0x04000000, + .inval_cache = lubbock_map_inval_cache, +} }; + +static struct mtd_partition lubbock_partitions[] = { + { + .name = "Bootloader", + .size = 0x00040000, + .offset = 0, + .mask_flags = MTD_WRITEABLE /* force read-only */ + },{ + .name = "Kernel", + .size = 0x00100000, + .offset = 0x00040000, + },{ + .name = "Filesystem", + .size = MTDPART_SIZ_FULL, + .offset = 0x00140000 + } +}; + +static struct mtd_info *mymtds[2]; +static struct mtd_partition *parsed_parts[2]; +static int nr_parsed_parts[2]; + +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + +static int __init init_lubbock(void) +{ + int flashboot = (LUB_CONF_SWITCHES & 1); + int ret = 0, i; + + lubbock_maps[0].bankwidth = lubbock_maps[1].bankwidth = + (BOOT_DEF & 1) ? 2 : 4; + + /* Compensate for the nROMBT switch which swaps the flash banks */ + printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n", + flashboot?"Flash":"ROM", flashboot); + + lubbock_maps[flashboot^1].name = "Lubbock Application Flash"; + lubbock_maps[flashboot].name = "Lubbock Boot ROM"; + + for (i = 0; i < 2; i++) { + lubbock_maps[i].virt = ioremap(lubbock_maps[i].phys, WINDOW_SIZE); + if (!lubbock_maps[i].virt) { + printk(KERN_WARNING "Failed to ioremap %s\n", lubbock_maps[i].name); + if (!ret) + ret = -ENOMEM; + continue; + } + lubbock_maps[i].cached = ioremap_cached(lubbock_maps[i].phys, WINDOW_SIZE); + if (!lubbock_maps[i].cached) + printk(KERN_WARNING "Failed to ioremap cached %s\n", lubbock_maps[i].name); + simple_map_init(&lubbock_maps[i]); + + printk(KERN_NOTICE "Probing %s at physical address 0x%08lx (%d-bit bankwidth)\n", + lubbock_maps[i].name, lubbock_maps[i].phys, + lubbock_maps[i].bankwidth * 8); + + mymtds[i] = do_map_probe("cfi_probe", &lubbock_maps[i]); + + if (!mymtds[i]) { + iounmap((void *)lubbock_maps[i].virt); + if (lubbock_maps[i].cached) + iounmap(lubbock_maps[i].cached); + if (!ret) + ret = -EIO; + continue; + } + mymtds[i]->owner = THIS_MODULE; + + ret = parse_mtd_partitions(mymtds[i], probes, + &parsed_parts[i], 0); + + if (ret > 0) + nr_parsed_parts[i] = ret; + } + + if (!mymtds[0] && !mymtds[1]) + return ret; + + for (i = 0; i < 2; i++) { + if (!mymtds[i]) { + printk(KERN_WARNING "%s is absent. Skipping\n", lubbock_maps[i].name); + } else if (nr_parsed_parts[i]) { + add_mtd_partitions(mymtds[i], parsed_parts[i], nr_parsed_parts[i]); + } else if (!i) { + printk("Using static partitions on %s\n", lubbock_maps[i].name); + add_mtd_partitions(mymtds[i], lubbock_partitions, ARRAY_SIZE(lubbock_partitions)); + } else { + printk("Registering %s as whole device\n", lubbock_maps[i].name); + add_mtd_device(mymtds[i]); + } + } + return 0; +} + +static void __exit cleanup_lubbock(void) +{ + int i; + for (i = 0; i < 2; i++) { + if (!mymtds[i]) + continue; + + if (nr_parsed_parts[i] || !i) + del_mtd_partitions(mymtds[i]); + else + del_mtd_device(mymtds[i]); + + map_destroy(mymtds[i]); + iounmap((void *)lubbock_maps[i].virt); + if (lubbock_maps[i].cached) + iounmap(lubbock_maps[i].cached); + + if (parsed_parts[i]) + kfree(parsed_parts[i]); + } +} + +module_init(init_lubbock); +module_exit(cleanup_lubbock); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>"); +MODULE_DESCRIPTION("MTD map driver for Intel Lubbock"); diff --git a/drivers/mtd/maps/map_funcs.c b/drivers/mtd/maps/map_funcs.c new file mode 100644 index 00000000000..38f6a7af53f --- /dev/null +++ b/drivers/mtd/maps/map_funcs.c @@ -0,0 +1,44 @@ +/* + * $Id: map_funcs.c,v 1.9 2004/07/13 22:33:15 dwmw2 Exp $ + * + * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS + * is enabled. + */ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include <linux/mtd/map.h> + +static map_word simple_map_read(struct map_info *map, unsigned long ofs) +{ + return inline_map_read(map, ofs); +} + +static void simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs) +{ + inline_map_write(map, datum, ofs); +} + +static void simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + inline_map_copy_from(map, to, from, len); +} + +static void simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + inline_map_copy_to(map, to, from, len); +} + +void simple_map_init(struct map_info *map) +{ + BUG_ON(!map_bankwidth_supported(map->bankwidth)); + + map->read = simple_map_read; + map->write = simple_map_write; + map->copy_from = simple_map_copy_from; + map->copy_to = simple_map_copy_to; +} + +EXPORT_SYMBOL(simple_map_init); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/mbx860.c b/drivers/mtd/maps/mbx860.c new file mode 100644 index 00000000000..c5c6901a476 --- /dev/null +++ b/drivers/mtd/maps/mbx860.c @@ -0,0 +1,100 @@ +/* + * $Id: mbx860.c,v 1.8 2004/11/04 13:24:15 gleixner Exp $ + * + * Handle mapping of the flash on MBX860 boards + * + * Author: Anton Todorov + * Copyright: (C) 2001 Emness Technology + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + +#define WINDOW_ADDR 0xfe000000 +#define WINDOW_SIZE 0x00200000 + +/* Flash / Partition sizing */ +#define MAX_SIZE_KiB 8192 +#define BOOT_PARTITION_SIZE_KiB 512 +#define KERNEL_PARTITION_SIZE_KiB 5632 +#define APP_PARTITION_SIZE_KiB 2048 + +#define NUM_PARTITIONS 3 + +/* partition_info gives details on the logical partitions that the split the + * single flash device into. If the size if zero we use up to the end of the + * device. */ +static struct mtd_partition partition_info[]={ + { .name = "MBX flash BOOT partition", + .offset = 0, + .size = BOOT_PARTITION_SIZE_KiB*1024 }, + { .name = "MBX flash DATA partition", + .offset = BOOT_PARTITION_SIZE_KiB*1024, + .size = (KERNEL_PARTITION_SIZE_KiB)*1024 }, + { .name = "MBX flash APPLICATION partition", + .offset = (BOOT_PARTITION_SIZE_KiB+KERNEL_PARTITION_SIZE_KiB)*1024 } +}; + + +static struct mtd_info *mymtd; + +struct map_info mbx_map = { + .name = "MBX flash", + .size = WINDOW_SIZE, + .phys = WINDOW_ADDR, + .bankwidth = 4, +}; + +int __init init_mbx(void) +{ + printk(KERN_NOTICE "Motorola MBX flash device: 0x%x at 0x%x\n", WINDOW_SIZE*4, WINDOW_ADDR); + mbx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4); + + if (!mbx_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + simple_map_init(&mbx_map); + + mymtd = do_map_probe("jedec_probe", &mbx_map); + if (mymtd) { + mymtd->owner = THIS_MODULE; + add_mtd_device(mymtd); + add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); + return 0; + } + + iounmap((void *)mbx_map.virt); + return -ENXIO; +} + +static void __exit cleanup_mbx(void) +{ + if (mymtd) { + del_mtd_device(mymtd); + map_destroy(mymtd); + } + if (mbx_map.virt) { + iounmap((void *)mbx_map.virt); + mbx_map.virt = 0; + } +} + +module_init(init_mbx); +module_exit(cleanup_mbx); + +MODULE_AUTHOR("Anton Todorov <a.todorov@emness.com>"); +MODULE_DESCRIPTION("MTD map driver for Motorola MBX860 board"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/mpc1211.c b/drivers/mtd/maps/mpc1211.c new file mode 100644 index 00000000000..4685e8e1346 --- /dev/null +++ b/drivers/mtd/maps/mpc1211.c @@ -0,0 +1,81 @@ +/* + * Flash on MPC-1211 + * + * $Id: mpc1211.c,v 1.4 2004/09/16 23:27:13 gleixner Exp $ + * + * (C) 2002 Interface, Saito.K & Jeanne + * + * GPL'd + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> + +static struct mtd_info *flash_mtd; +static struct mtd_partition *parsed_parts; + +struct map_info mpc1211_flash_map = { + .name = "MPC-1211 FLASH", + .size = 0x80000, + .bankwidth = 1, +}; + +static struct mtd_partition mpc1211_partitions[] = { + { + .name = "IPL & ETH-BOOT", + .offset = 0x00000000, + .size = 0x10000, + }, + { + .name = "Flash FS", + .offset = 0x00010000, + .size = MTDPART_SIZ_FULL, + } +}; + +static int __init init_mpc1211_maps(void) +{ + int nr_parts; + + mpc1211_flash_map.phys = 0; + mpc1211_flash_map.virt = (void __iomem *)P2SEGADDR(0); + + simple_map_init(&mpc1211_flash_map); + + printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n"); + flash_mtd = do_map_probe("jedec_probe", &mpc1211_flash_map); + if (!flash_mtd) { + printk(KERN_NOTICE "Flash chips not detected at either possible location.\n"); + return -ENXIO; + } + printk(KERN_NOTICE "MPC-1211: Flash at 0x%08lx\n", mpc1211_flash_map.virt & 0x1fffffff); + flash_mtd->module = THIS_MODULE; + + parsed_parts = mpc1211_partitions; + nr_parts = ARRAY_SIZE(mpc1211_partitions); + + add_mtd_partitions(flash_mtd, parsed_parts, nr_parts); + return 0; +} + +static void __exit cleanup_mpc1211_maps(void) +{ + if (parsed_parts) + del_mtd_partitions(flash_mtd); + else + del_mtd_device(flash_mtd); + map_destroy(flash_mtd); +} + +module_init(init_mpc1211_maps); +module_exit(cleanup_mpc1211_maps); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Saito.K & Jeanne <ksaito@interface.co.jp>"); +MODULE_DESCRIPTION("MTD map driver for MPC-1211 boards. Interface"); diff --git a/drivers/mtd/maps/netsc520.c b/drivers/mtd/maps/netsc520.c new file mode 100644 index 00000000000..ab7e6358d28 --- /dev/null +++ b/drivers/mtd/maps/netsc520.c @@ -0,0 +1,140 @@ +/* netsc520.c -- MTD map driver for AMD NetSc520 Demonstration Board + * + * Copyright (C) 2001 Mark Langsdorf (mark.langsdorf@amd.com) + * based on sc520cdp.c by Sysgo Real-Time Solutions GmbH + * + * $Id: netsc520.c,v 1.13 2004/11/28 09:40:40 dwmw2 Exp $ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * The NetSc520 is a demonstration board for the Elan Sc520 processor available + * from AMD. It has a single back of 16 megs of 32-bit Flash ROM and another + * 16 megs of SDRAM. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + +/* +** The single, 16 megabyte flash bank is divided into four virtual +** partitions. The first partition is 768 KiB and is intended to +** store the kernel image loaded by the bootstrap loader. The second +** partition is 256 KiB and holds the BIOS image. The third +** partition is 14.5 MiB and is intended for the flash file system +** image. The last partition is 512 KiB and contains another copy +** of the BIOS image and the reset vector. +** +** Only the third partition should be mounted. The first partition +** should not be mounted, but it can erased and written to using the +** MTD character routines. The second and fourth partitions should +** not be touched - it is possible to corrupt the BIOS image by +** mounting these partitions, and potentially the board will not be +** recoverable afterwards. +*/ + +/* partition_info gives details on the logical partitions that the split the + * single flash device into. If the size if zero we use up to the end of the + * device. */ +static struct mtd_partition partition_info[]={ + { + .name = "NetSc520 boot kernel", + .offset = 0, + .size = 0xc0000 + }, + { + .name = "NetSc520 Low BIOS", + .offset = 0xc0000, + .size = 0x40000 + }, + { + .name = "NetSc520 file system", + .offset = 0x100000, + .size = 0xe80000 + }, + { + .name = "NetSc520 High BIOS", + .offset = 0xf80000, + .size = 0x80000 + }, +}; +#define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0])) + +#define WINDOW_SIZE 0x00100000 +#define WINDOW_ADDR 0x00200000 + +static struct map_info netsc520_map = { + .name = "netsc520 Flash Bank", + .size = WINDOW_SIZE, + .bankwidth = 4, + .phys = WINDOW_ADDR, +}; + +#define NUM_FLASH_BANKS (sizeof(netsc520_map)/sizeof(struct map_info)) + +static struct mtd_info *mymtd; + +static int __init init_netsc520(void) +{ + printk(KERN_NOTICE "NetSc520 flash device: 0x%lx at 0x%lx\n", netsc520_map.size, netsc520_map.phys); + netsc520_map.virt = ioremap_nocache(netsc520_map.phys, netsc520_map.size); + + if (!netsc520_map.virt) { + printk("Failed to ioremap_nocache\n"); + return -EIO; + } + + simple_map_init(&netsc520_map); + + mymtd = do_map_probe("cfi_probe", &netsc520_map); + if(!mymtd) + mymtd = do_map_probe("map_ram", &netsc520_map); + if(!mymtd) + mymtd = do_map_probe("map_rom", &netsc520_map); + + if (!mymtd) { + iounmap(netsc520_map.virt); + return -ENXIO; + } + + mymtd->owner = THIS_MODULE; + add_mtd_partitions( mymtd, partition_info, NUM_PARTITIONS ); + return 0; +} + +static void __exit cleanup_netsc520(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + if (netsc520_map.virt) { + iounmap(netsc520_map.virt); + netsc520_map.virt = NULL; + } +} + +module_init(init_netsc520); +module_exit(cleanup_netsc520); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mark Langsdorf <mark.langsdorf@amd.com>"); +MODULE_DESCRIPTION("MTD map driver for AMD NetSc520 Demonstration Board"); diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c new file mode 100644 index 00000000000..61be5a4148c --- /dev/null +++ b/drivers/mtd/maps/nettel.c @@ -0,0 +1,496 @@ +/****************************************************************************/ + +/* + * nettel.c -- mappings for NETtel/SecureEdge/SnapGear (x86) boards. + * + * (C) Copyright 2000-2001, Greg Ungerer (gerg@snapgear.com) + * (C) Copyright 2001-2002, SnapGear (www.snapgear.com) + * + * $Id: nettel.c,v 1.10 2005/01/05 17:11:29 dwmw2 Exp $ + */ + +/****************************************************************************/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/cfi.h> +#include <linux/reboot.h> +#include <asm/io.h> + +/****************************************************************************/ + +#define INTEL_BUSWIDTH 1 +#define AMD_WINDOW_MAXSIZE 0x00200000 +#define AMD_BUSWIDTH 1 + +/* + * PAR masks and shifts, assuming 64K pages. + */ +#define SC520_PAR_ADDR_MASK 0x00003fff +#define SC520_PAR_ADDR_SHIFT 16 +#define SC520_PAR_TO_ADDR(par) \ + (((par)&SC520_PAR_ADDR_MASK) << SC520_PAR_ADDR_SHIFT) + +#define SC520_PAR_SIZE_MASK 0x01ffc000 +#define SC520_PAR_SIZE_SHIFT 2 +#define SC520_PAR_TO_SIZE(par) \ + ((((par)&SC520_PAR_SIZE_MASK) << SC520_PAR_SIZE_SHIFT) + (64*1024)) + +#define SC520_PAR(cs, addr, size) \ + ((cs) | \ + ((((size)-(64*1024)) >> SC520_PAR_SIZE_SHIFT) & SC520_PAR_SIZE_MASK) | \ + (((addr) >> SC520_PAR_ADDR_SHIFT) & SC520_PAR_ADDR_MASK)) + +#define SC520_PAR_BOOTCS 0x8a000000 +#define SC520_PAR_ROMCS1 0xaa000000 +#define SC520_PAR_ROMCS2 0xca000000 /* Cache disabled, 64K page */ + +static void *nettel_mmcrp = NULL; + +#ifdef CONFIG_MTD_CFI_INTELEXT +static struct mtd_info *intel_mtd; +#endif +static struct mtd_info *amd_mtd; + +/****************************************************************************/ + +/****************************************************************************/ + +#ifdef CONFIG_MTD_CFI_INTELEXT +static struct map_info nettel_intel_map = { + .name = "SnapGear Intel", + .size = 0, + .bankwidth = INTEL_BUSWIDTH, +}; + +static struct mtd_partition nettel_intel_partitions[] = { + { + .name = "SnapGear kernel", + .offset = 0, + .size = 0x000e0000 + }, + { + .name = "SnapGear filesystem", + .offset = 0x00100000, + }, + { + .name = "SnapGear config", + .offset = 0x000e0000, + .size = 0x00020000 + }, + { + .name = "SnapGear Intel", + .offset = 0 + }, + { + .name = "SnapGear BIOS Config", + .offset = 0x007e0000, + .size = 0x00020000 + }, + { + .name = "SnapGear BIOS", + .offset = 0x007e0000, + .size = 0x00020000 + }, +}; +#endif + +static struct map_info nettel_amd_map = { + .name = "SnapGear AMD", + .size = AMD_WINDOW_MAXSIZE, + .bankwidth = AMD_BUSWIDTH, +}; + +static struct mtd_partition nettel_amd_partitions[] = { + { + .name = "SnapGear BIOS config", + .offset = 0x000e0000, + .size = 0x00010000 + }, + { + .name = "SnapGear BIOS", + .offset = 0x000f0000, + .size = 0x00010000 + }, + { + .name = "SnapGear AMD", + .offset = 0 + }, + { + .name = "SnapGear high BIOS", + .offset = 0x001f0000, + .size = 0x00010000 + } +}; + +#define NUM_AMD_PARTITIONS \ + (sizeof(nettel_amd_partitions)/sizeof(nettel_amd_partitions[0])) + +/****************************************************************************/ + +#ifdef CONFIG_MTD_CFI_INTELEXT + +/* + * Set the Intel flash back to read mode since some old boot + * loaders don't. + */ +static int nettel_reboot_notifier(struct notifier_block *nb, unsigned long val, void *v) +{ + struct cfi_private *cfi = nettel_intel_map.fldrv_priv; + unsigned long b; + + /* Make sure all FLASH chips are put back into read mode */ + for (b = 0; (b < nettel_intel_partitions[3].size); b += 0x100000) { + cfi_send_gen_cmd(0xff, 0x55, b, &nettel_intel_map, cfi, + cfi->device_type, NULL); + } + return(NOTIFY_OK); +} + +static struct notifier_block nettel_notifier_block = { + nettel_reboot_notifier, NULL, 0 +}; + +/* + * Erase the configuration file system. + * Used to support the software reset button. + */ +static void nettel_erasecallback(struct erase_info *done) +{ + wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; + wake_up(wait_q); +} + +static struct erase_info nettel_erase; + +int nettel_eraseconfig(void) +{ + struct mtd_info *mtd; + DECLARE_WAITQUEUE(wait, current); + wait_queue_head_t wait_q; + int ret; + + init_waitqueue_head(&wait_q); + mtd = get_mtd_device(NULL, 2); + if (mtd) { + nettel_erase.mtd = mtd; + nettel_erase.callback = nettel_erasecallback; + nettel_erase.callback = NULL; + nettel_erase.addr = 0; + nettel_erase.len = mtd->size; + nettel_erase.priv = (u_long) &wait_q; + nettel_erase.priv = 0; + + set_current_state(TASK_INTERRUPTIBLE); + add_wait_queue(&wait_q, &wait); + + ret = MTD_ERASE(mtd, &nettel_erase); + if (ret) { + set_current_state(TASK_RUNNING); + remove_wait_queue(&wait_q, &wait); + put_mtd_device(mtd); + return(ret); + } + + schedule(); /* Wait for erase to finish. */ + remove_wait_queue(&wait_q, &wait); + + put_mtd_device(mtd); + } + + return(0); +} + +#else + +int nettel_eraseconfig(void) +{ + return(0); +} + +#endif + +/****************************************************************************/ + +int __init nettel_init(void) +{ + volatile unsigned long *amdpar; + unsigned long amdaddr, maxsize; + int num_amd_partitions=0; +#ifdef CONFIG_MTD_CFI_INTELEXT + volatile unsigned long *intel0par, *intel1par; + unsigned long orig_bootcspar, orig_romcs1par; + unsigned long intel0addr, intel0size; + unsigned long intel1addr, intel1size; + int intelboot, intel0cs, intel1cs; + int num_intel_partitions; +#endif + int rc = 0; + + nettel_mmcrp = (void *) ioremap_nocache(0xfffef000, 4096); + if (nettel_mmcrp == NULL) { + printk("SNAPGEAR: failed to disable MMCR cache??\n"); + return(-EIO); + } + + /* Set CPU clock to be 33.000MHz */ + *((unsigned char *) (nettel_mmcrp + 0xc64)) = 0x01; + + amdpar = (volatile unsigned long *) (nettel_mmcrp + 0xc4); + +#ifdef CONFIG_MTD_CFI_INTELEXT + intelboot = 0; + intel0cs = SC520_PAR_ROMCS1; + intel0par = (volatile unsigned long *) (nettel_mmcrp + 0xc0); + intel1cs = SC520_PAR_ROMCS2; + intel1par = (volatile unsigned long *) (nettel_mmcrp + 0xbc); + + /* + * Save the CS settings then ensure ROMCS1 and ROMCS2 are off, + * otherwise they might clash with where we try to map BOOTCS. + */ + orig_bootcspar = *amdpar; + orig_romcs1par = *intel0par; + *intel0par = 0; + *intel1par = 0; +#endif + + /* + * The first thing to do is determine if we have a separate + * boot FLASH device. Typically this is a small (1 to 2MB) + * AMD FLASH part. It seems that device size is about the + * only way to tell if this is the case... + */ + amdaddr = 0x20000000; + maxsize = AMD_WINDOW_MAXSIZE; + + *amdpar = SC520_PAR(SC520_PAR_BOOTCS, amdaddr, maxsize); + __asm__ ("wbinvd"); + + nettel_amd_map.phys = amdaddr; + nettel_amd_map.virt = ioremap_nocache(amdaddr, maxsize); + if (!nettel_amd_map.virt) { + printk("SNAPGEAR: failed to ioremap() BOOTCS\n"); + return(-EIO); + } + simple_map_init(&nettel_amd_map); + + if ((amd_mtd = do_map_probe("jedec_probe", &nettel_amd_map))) { + printk(KERN_NOTICE "SNAPGEAR: AMD flash device size = %dK\n", + amd_mtd->size>>10); + + amd_mtd->owner = THIS_MODULE; + + /* The high BIOS partition is only present for 2MB units */ + num_amd_partitions = NUM_AMD_PARTITIONS; + if (amd_mtd->size < AMD_WINDOW_MAXSIZE) + num_amd_partitions--; + /* Don't add the partition until after the primary INTEL's */ + +#ifdef CONFIG_MTD_CFI_INTELEXT + /* + * Map the Intel flash into memory after the AMD + * It has to start on a multiple of maxsize. + */ + maxsize = SC520_PAR_TO_SIZE(orig_romcs1par); + if (maxsize < (32 * 1024 * 1024)) + maxsize = (32 * 1024 * 1024); + intel0addr = amdaddr + maxsize; +#endif + } else { +#ifdef CONFIG_MTD_CFI_INTELEXT + /* INTEL boot FLASH */ + intelboot++; + + if (!orig_romcs1par) { + intel0cs = SC520_PAR_BOOTCS; + intel0par = (volatile unsigned long *) + (nettel_mmcrp + 0xc4); + intel1cs = SC520_PAR_ROMCS1; + intel1par = (volatile unsigned long *) + (nettel_mmcrp + 0xc0); + + intel0addr = SC520_PAR_TO_ADDR(orig_bootcspar); + maxsize = SC520_PAR_TO_SIZE(orig_bootcspar); + } else { + /* Kernel base is on ROMCS1, not BOOTCS */ + intel0cs = SC520_PAR_ROMCS1; + intel0par = (volatile unsigned long *) + (nettel_mmcrp + 0xc0); + intel1cs = SC520_PAR_BOOTCS; + intel1par = (volatile unsigned long *) + (nettel_mmcrp + 0xc4); + + intel0addr = SC520_PAR_TO_ADDR(orig_romcs1par); + maxsize = SC520_PAR_TO_SIZE(orig_romcs1par); + } + + /* Destroy useless AMD MTD mapping */ + amd_mtd = NULL; + iounmap(nettel_amd_map.virt); + nettel_amd_map.virt = NULL; +#else + /* Only AMD flash supported */ + return(-ENXIO); +#endif + } + +#ifdef CONFIG_MTD_CFI_INTELEXT + /* + * We have determined the INTEL FLASH configuration, so lets + * go ahead and probe for them now. + */ + + /* Set PAR to the maximum size */ + if (maxsize < (32 * 1024 * 1024)) + maxsize = (32 * 1024 * 1024); + *intel0par = SC520_PAR(intel0cs, intel0addr, maxsize); + + /* Turn other PAR off so the first probe doesn't find it */ + *intel1par = 0; + + /* Probe for the the size of the first Intel flash */ + nettel_intel_map.size = maxsize; + nettel_intel_map.phys = intel0addr; + nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize); + if (!nettel_intel_map.virt) { + printk("SNAPGEAR: failed to ioremap() ROMCS1\n"); + return(-EIO); + } + simple_map_init(&nettel_intel_map); + + intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map); + if (!intel_mtd) { + iounmap(nettel_intel_map.virt); + return(-ENXIO); + } + + /* Set PAR to the detected size */ + intel0size = intel_mtd->size; + *intel0par = SC520_PAR(intel0cs, intel0addr, intel0size); + + /* + * Map second Intel FLASH right after first. Set its size to the + * same maxsize used for the first Intel FLASH. + */ + intel1addr = intel0addr + intel0size; + *intel1par = SC520_PAR(intel1cs, intel1addr, maxsize); + __asm__ ("wbinvd"); + + maxsize += intel0size; + + /* Delete the old map and probe again to do both chips */ + map_destroy(intel_mtd); + intel_mtd = NULL; + iounmap(nettel_intel_map.virt); + + nettel_intel_map.size = maxsize; + nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize); + if (!nettel_intel_map.virt) { + printk("SNAPGEAR: failed to ioremap() ROMCS1/2\n"); + return(-EIO); + } + + intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map); + if (! intel_mtd) { + iounmap((void *) nettel_intel_map.virt); + return(-ENXIO); + } + + intel1size = intel_mtd->size - intel0size; + if (intel1size > 0) { + *intel1par = SC520_PAR(intel1cs, intel1addr, intel1size); + __asm__ ("wbinvd"); + } else { + *intel1par = 0; + } + + printk(KERN_NOTICE "SNAPGEAR: Intel flash device size = %dK\n", + (intel_mtd->size >> 10)); + + intel_mtd->owner = THIS_MODULE; + +#ifndef CONFIG_BLK_DEV_INITRD + ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 1); +#endif + + num_intel_partitions = sizeof(nettel_intel_partitions) / + sizeof(nettel_intel_partitions[0]); + + if (intelboot) { + /* + * Adjust offset and size of last boot partition. + * Must allow for BIOS region at end of FLASH. + */ + nettel_intel_partitions[1].size = (intel0size + intel1size) - + (1024*1024 + intel_mtd->erasesize); + nettel_intel_partitions[3].size = intel0size + intel1size; + nettel_intel_partitions[4].offset = + (intel0size + intel1size) - intel_mtd->erasesize; + nettel_intel_partitions[4].size = intel_mtd->erasesize; + nettel_intel_partitions[5].offset = + nettel_intel_partitions[4].offset; + nettel_intel_partitions[5].size = + nettel_intel_partitions[4].size; + } else { + /* No BIOS regions when AMD boot */ + num_intel_partitions -= 2; + } + rc = add_mtd_partitions(intel_mtd, nettel_intel_partitions, + num_intel_partitions); +#endif + + if (amd_mtd) { + rc = add_mtd_partitions(amd_mtd, nettel_amd_partitions, + num_amd_partitions); + } + +#ifdef CONFIG_MTD_CFI_INTELEXT + register_reboot_notifier(&nettel_notifier_block); +#endif + + return(rc); +} + +/****************************************************************************/ + +void __exit nettel_cleanup(void) +{ +#ifdef CONFIG_MTD_CFI_INTELEXT + unregister_reboot_notifier(&nettel_notifier_block); +#endif + if (amd_mtd) { + del_mtd_partitions(amd_mtd); + map_destroy(amd_mtd); + } + if (nettel_amd_map.virt) { + iounmap(nettel_amd_map.virt); + nettel_amd_map.virt = NULL; + } +#ifdef CONFIG_MTD_CFI_INTELEXT + if (intel_mtd) { + del_mtd_partitions(intel_mtd); + map_destroy(intel_mtd); + } + if (nettel_intel_map.virt) { + iounmap(nettel_intel_map.virt); + nettel_intel_map.virt = 0; + } +#endif +} + +/****************************************************************************/ + +module_init(nettel_init); +module_exit(nettel_cleanup); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>"); +MODULE_DESCRIPTION("SnapGear/SecureEdge FLASH support"); + +/****************************************************************************/ diff --git a/drivers/mtd/maps/ocelot.c b/drivers/mtd/maps/ocelot.c new file mode 100644 index 00000000000..82c3070678c --- /dev/null +++ b/drivers/mtd/maps/ocelot.c @@ -0,0 +1,175 @@ +/* + * $Id: ocelot.c,v 1.16 2005/01/05 18:05:13 dwmw2 Exp $ + * + * Flash on Momenco Ocelot + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#define OCELOT_PLD 0x2c000000 +#define FLASH_WINDOW_ADDR 0x2fc00000 +#define FLASH_WINDOW_SIZE 0x00080000 +#define FLASH_BUSWIDTH 1 +#define NVRAM_WINDOW_ADDR 0x2c800000 +#define NVRAM_WINDOW_SIZE 0x00007FF0 +#define NVRAM_BUSWIDTH 1 + +static unsigned int cacheflush = 0; + +static struct mtd_info *flash_mtd; +static struct mtd_info *nvram_mtd; + +static void ocelot_ram_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) +{ + struct map_info *map = mtd->priv; + size_t done = 0; + + /* If we use memcpy, it does word-wide writes. Even though we told the + GT64120A that it's an 8-bit wide region, word-wide writes don't work. + We end up just writing the first byte of the four to all four bytes. + So we have this loop instead */ + *retlen = len; + while(len) { + __raw_writeb(*(unsigned char *) from, map->virt + to); + from++; + to++; + len--; + } +} + +static struct mtd_partition *parsed_parts; + +struct map_info ocelot_flash_map = { + .name = "Ocelot boot flash", + .size = FLASH_WINDOW_SIZE, + .bankwidth = FLASH_BUSWIDTH, + .phys = FLASH_WINDOW_ADDR, +}; + +struct map_info ocelot_nvram_map = { + .name = "Ocelot NVRAM", + .size = NVRAM_WINDOW_SIZE, + .bankwidth = NVRAM_BUSWIDTH, + .phys = NVRAM_WINDOW_ADDR, +}; + +static const char *probes[] = { "RedBoot", NULL }; + +static int __init init_ocelot_maps(void) +{ + void *pld; + int nr_parts; + unsigned char brd_status; + + printk(KERN_INFO "Momenco Ocelot MTD mappings: Flash 0x%x at 0x%x, NVRAM 0x%x at 0x%x\n", + FLASH_WINDOW_SIZE, FLASH_WINDOW_ADDR, NVRAM_WINDOW_SIZE, NVRAM_WINDOW_ADDR); + + /* First check whether the flash jumper is present */ + pld = ioremap(OCELOT_PLD, 0x10); + if (!pld) { + printk(KERN_NOTICE "Failed to ioremap Ocelot PLD\n"); + return -EIO; + } + brd_status = readb(pld+4); + iounmap(pld); + + /* Now ioremap the NVRAM space */ + ocelot_nvram_map.virt = ioremap_nocache(NVRAM_WINDOW_ADDR, NVRAM_WINDOW_SIZE); + if (!ocelot_nvram_map.virt) { + printk(KERN_NOTICE "Failed to ioremap Ocelot NVRAM space\n"); + return -EIO; + } + + simple_map_init(&ocelot_nvram_map); + + /* And do the RAM probe on it to get an MTD device */ + nvram_mtd = do_map_probe("map_ram", &ocelot_nvram_map); + if (!nvram_mtd) { + printk("NVRAM probe failed\n"); + goto fail_1; + } + nvram_mtd->owner = THIS_MODULE; + nvram_mtd->erasesize = 16; + /* Override the write() method */ + nvram_mtd->write = ocelot_ram_write; + + /* Now map the flash space */ + ocelot_flash_map.virt = ioremap_nocache(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE); + if (!ocelot_flash_map.virt) { + printk(KERN_NOTICE "Failed to ioremap Ocelot flash space\n"); + goto fail_2; + } + /* Now the cached version */ + ocelot_flash_map.cached = (unsigned long)__ioremap(FLASH_WINDOW_ADDR, FLASH_WINDOW_SIZE, 0); + + simple_map_init(&ocelot_flash_map); + + /* Only probe for flash if the write jumper is present */ + if (brd_status & 0x40) { + flash_mtd = do_map_probe("jedec", &ocelot_flash_map); + } else { + printk(KERN_NOTICE "Ocelot flash write jumper not present. Treating as ROM\n"); + } + /* If that failed or the jumper's absent, pretend it's ROM */ + if (!flash_mtd) { + flash_mtd = do_map_probe("map_rom", &ocelot_flash_map); + /* If we're treating it as ROM, set the erase size */ + if (flash_mtd) + flash_mtd->erasesize = 0x10000; + } + if (!flash_mtd) + goto fail3; + + add_mtd_device(nvram_mtd); + + flash_mtd->owner = THIS_MODULE; + nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0); + + if (nr_parts > 0) + add_mtd_partitions(flash_mtd, parsed_parts, nr_parts); + else + add_mtd_device(flash_mtd); + + return 0; + + fail3: + iounmap((void *)ocelot_flash_map.virt); + if (ocelot_flash_map.cached) + iounmap((void *)ocelot_flash_map.cached); + fail_2: + map_destroy(nvram_mtd); + fail_1: + iounmap((void *)ocelot_nvram_map.virt); + + return -ENXIO; +} + +static void __exit cleanup_ocelot_maps(void) +{ + del_mtd_device(nvram_mtd); + map_destroy(nvram_mtd); + iounmap((void *)ocelot_nvram_map.virt); + + if (parsed_parts) + del_mtd_partitions(flash_mtd); + else + del_mtd_device(flash_mtd); + map_destroy(flash_mtd); + iounmap((void *)ocelot_flash_map.virt); + if (ocelot_flash_map.cached) + iounmap((void *)ocelot_flash_map.cached); +} + +module_init(init_ocelot_maps); +module_exit(cleanup_ocelot_maps); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>"); +MODULE_DESCRIPTION("MTD map driver for Momenco Ocelot board"); diff --git a/drivers/mtd/maps/ocotea.c b/drivers/mtd/maps/ocotea.c new file mode 100644 index 00000000000..6e559bc1463 --- /dev/null +++ b/drivers/mtd/maps/ocotea.c @@ -0,0 +1,154 @@ +/* + * Mapping for Ocotea user flash + * + * Matt Porter <mporter@kernel.crashing.org> + * + * Copyright 2002-2004 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <linux/version.h> +#include <asm/io.h> +#include <asm/ibm44x.h> +#include <platforms/4xx/ocotea.h> + +static struct mtd_info *flash; + +static struct map_info ocotea_small_map = { + .name = "Ocotea small flash", + .size = OCOTEA_SMALL_FLASH_SIZE, + .buswidth = 1, +}; + +static struct map_info ocotea_large_map = { + .name = "Ocotea large flash", + .size = OCOTEA_LARGE_FLASH_SIZE, + .buswidth = 1, +}; + +static struct mtd_partition ocotea_small_partitions[] = { + { + .name = "pibs", + .offset = 0x0, + .size = 0x100000, + } +}; + +static struct mtd_partition ocotea_large_partitions[] = { + { + .name = "fs", + .offset = 0, + .size = 0x300000, + }, + { + .name = "firmware", + .offset = 0x300000, + .size = 0x100000, + } +}; + +#define NB_OF(x) (sizeof(x)/sizeof(x[0])) + +int __init init_ocotea(void) +{ + u8 fpga0_reg; + u8 *fpga0_adr; + unsigned long long small_flash_base, large_flash_base; + + fpga0_adr = ioremap64(OCOTEA_FPGA_ADDR, 16); + if (!fpga0_adr) + return -ENOMEM; + + fpga0_reg = readb((unsigned long)fpga0_adr); + iounmap(fpga0_adr); + + if (OCOTEA_BOOT_LARGE_FLASH(fpga0_reg)) { + small_flash_base = OCOTEA_SMALL_FLASH_HIGH; + large_flash_base = OCOTEA_LARGE_FLASH_LOW; + } + else { + small_flash_base = OCOTEA_SMALL_FLASH_LOW; + large_flash_base = OCOTEA_LARGE_FLASH_HIGH; + } + + ocotea_small_map.phys = small_flash_base; + ocotea_small_map.virt = ioremap64(small_flash_base, + ocotea_small_map.size); + + if (!ocotea_small_map.virt) { + printk("Failed to ioremap flash\n"); + return -EIO; + } + + simple_map_init(&ocotea_small_map); + + flash = do_map_probe("map_rom", &ocotea_small_map); + if (flash) { + flash->owner = THIS_MODULE; + add_mtd_partitions(flash, ocotea_small_partitions, + NB_OF(ocotea_small_partitions)); + } else { + printk("map probe failed for flash\n"); + return -ENXIO; + } + + ocotea_large_map.phys = large_flash_base; + ocotea_large_map.virt = ioremap64(large_flash_base, + ocotea_large_map.size); + + if (!ocotea_large_map.virt) { + printk("Failed to ioremap flash\n"); + return -EIO; + } + + simple_map_init(&ocotea_large_map); + + flash = do_map_probe("cfi_probe", &ocotea_large_map); + if (flash) { + flash->owner = THIS_MODULE; + add_mtd_partitions(flash, ocotea_large_partitions, + NB_OF(ocotea_large_partitions)); + } else { + printk("map probe failed for flash\n"); + return -ENXIO; + } + + return 0; +} + +static void __exit cleanup_ocotea(void) +{ + if (flash) { + del_mtd_partitions(flash); + map_destroy(flash); + } + + if (ocotea_small_map.virt) { + iounmap((void *)ocotea_small_map.virt); + ocotea_small_map.virt = 0; + } + + if (ocotea_large_map.virt) { + iounmap((void *)ocotea_large_map.virt); + ocotea_large_map.virt = 0; + } +} + +module_init(init_ocotea); +module_exit(cleanup_ocotea); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Matt Porter <mporter@kernel.crashing.org>"); +MODULE_DESCRIPTION("MTD map and partitions for IBM 440GX Ocotea boards"); diff --git a/drivers/mtd/maps/octagon-5066.c b/drivers/mtd/maps/octagon-5066.c new file mode 100644 index 00000000000..e5ff83de420 --- /dev/null +++ b/drivers/mtd/maps/octagon-5066.c @@ -0,0 +1,248 @@ +// $Id: octagon-5066.c,v 1.26 2004/07/12 22:38:29 dwmw2 Exp $ +/* ###################################################################### + + Octagon 5066 MTD Driver. + + The Octagon 5066 is a SBC based on AMD's 586-WB running at 133 MHZ. It + comes with a builtin AMD 29F016 flash chip and a socketed EEPROM that + is replacable by flash. Both units are mapped through a multiplexer + into a 32k memory window at 0xe8000. The control register for the + multiplexing unit is located at IO 0x208 with a bit map of + 0-5 Page Selection in 32k increments + 6-7 Device selection: + 00 SSD off + 01 SSD 0 (Socket) + 10 SSD 1 (Flash chip) + 11 undefined + + On each SSD, the first 128k is reserved for use by the bios + (actually it IS the bios..) This only matters if you are booting off the + flash, you must not put a file system starting there. + + The driver tries to do a detection algorithm to guess what sort of devices + are plugged into the sockets. + + ##################################################################### */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <asm/io.h> + +#include <linux/mtd/map.h> +#include <linux/mtd/mtd.h> + +#define WINDOW_START 0xe8000 +#define WINDOW_LENGTH 0x8000 +#define WINDOW_SHIFT 27 +#define WINDOW_MASK 0x7FFF +#define PAGE_IO 0x208 + +static volatile char page_n_dev = 0; +static unsigned long iomapadr; +static DEFINE_SPINLOCK(oct5066_spin); + +/* + * We use map_priv_1 to identify which device we are. + */ + +static void __oct5066_page(struct map_info *map, __u8 byte) +{ + outb(byte,PAGE_IO); + page_n_dev = byte; +} + +static inline void oct5066_page(struct map_info *map, unsigned long ofs) +{ + __u8 byte = map->map_priv_1 | (ofs >> WINDOW_SHIFT); + + if (page_n_dev != byte) + __oct5066_page(map, byte); +} + + +static map_word oct5066_read8(struct map_info *map, unsigned long ofs) +{ + map_word ret; + spin_lock(&oct5066_spin); + oct5066_page(map, ofs); + ret.x[0] = readb(iomapadr + (ofs & WINDOW_MASK)); + spin_unlock(&oct5066_spin); + return ret; +} + +static void oct5066_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (from & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(from & WINDOW_MASK); + + spin_lock(&oct5066_spin); + oct5066_page(map, from); + memcpy_fromio(to, iomapadr + from, thislen); + spin_unlock(&oct5066_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static void oct5066_write8(struct map_info *map, map_word d, unsigned long adr) +{ + spin_lock(&oct5066_spin); + oct5066_page(map, adr); + writeb(d.x[0], iomapadr + (adr & WINDOW_MASK)); + spin_unlock(&oct5066_spin); +} + +static void oct5066_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (to & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(to & WINDOW_MASK); + + spin_lock(&oct5066_spin); + oct5066_page(map, to); + memcpy_toio(iomapadr + to, from, thislen); + spin_unlock(&oct5066_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static struct map_info oct5066_map[2] = { + { + .name = "Octagon 5066 Socket", + .phys = NO_XIP, + .size = 512 * 1024, + .bankwidth = 1, + .read = oct5066_read8, + .copy_from = oct5066_copy_from, + .write = oct5066_write8, + .copy_to = oct5066_copy_to, + .map_priv_1 = 1<<6 + }, + { + .name = "Octagon 5066 Internal Flash", + .phys = NO_XIP, + .size = 2 * 1024 * 1024, + .bankwidth = 1, + .read = oct5066_read8, + .copy_from = oct5066_copy_from, + .write = oct5066_write8, + .copy_to = oct5066_copy_to, + .map_priv_1 = 2<<6 + } +}; + +static struct mtd_info *oct5066_mtd[2] = {NULL, NULL}; + +// OctProbe - Sense if this is an octagon card +// --------------------------------------------------------------------- +/* Perform a simple validity test, we map the window select SSD0 and + change pages while monitoring the window. A change in the window, + controlled by the PAGE_IO port is a functioning 5066 board. This will + fail if the thing in the socket is set to a uniform value. */ +static int __init OctProbe(void) +{ + unsigned int Base = (1 << 6); + unsigned long I; + unsigned long Values[10]; + for (I = 0; I != 20; I++) + { + outb(Base + (I%10),PAGE_IO); + if (I < 10) + { + // Record the value and check for uniqueness + Values[I%10] = readl(iomapadr); + if (I > 0 && Values[I%10] == Values[0]) + return -EAGAIN; + } + else + { + // Make sure we get the same values on the second pass + if (Values[I%10] != readl(iomapadr)) + return -EAGAIN; + } + } + return 0; +} + +void cleanup_oct5066(void) +{ + int i; + for (i=0; i<2; i++) { + if (oct5066_mtd[i]) { + del_mtd_device(oct5066_mtd[i]); + map_destroy(oct5066_mtd[i]); + } + } + iounmap((void *)iomapadr); + release_region(PAGE_IO, 1); +} + +int __init init_oct5066(void) +{ + int i; + int ret = 0; + + // Do an autoprobe sequence + if (!request_region(PAGE_IO,1,"Octagon SSD")) { + printk(KERN_NOTICE "5066: Page Register in Use\n"); + return -EAGAIN; + } + iomapadr = (unsigned long)ioremap(WINDOW_START, WINDOW_LENGTH); + if (!iomapadr) { + printk(KERN_NOTICE "Failed to ioremap memory region\n"); + ret = -EIO; + goto out_rel; + } + if (OctProbe() != 0) { + printk(KERN_NOTICE "5066: Octagon Probe Failed, is this an Octagon 5066 SBC?\n"); + iounmap((void *)iomapadr); + ret = -EAGAIN; + goto out_unmap; + } + + // Print out our little header.. + printk("Octagon 5066 SSD IO:0x%x MEM:0x%x-0x%x\n",PAGE_IO,WINDOW_START, + WINDOW_START+WINDOW_LENGTH); + + for (i=0; i<2; i++) { + oct5066_mtd[i] = do_map_probe("cfi_probe", &oct5066_map[i]); + if (!oct5066_mtd[i]) + oct5066_mtd[i] = do_map_probe("jedec", &oct5066_map[i]); + if (!oct5066_mtd[i]) + oct5066_mtd[i] = do_map_probe("map_ram", &oct5066_map[i]); + if (!oct5066_mtd[i]) + oct5066_mtd[i] = do_map_probe("map_rom", &oct5066_map[i]); + if (oct5066_mtd[i]) { + oct5066_mtd[i]->owner = THIS_MODULE; + add_mtd_device(oct5066_mtd[i]); + } + } + + if (!oct5066_mtd[0] && !oct5066_mtd[1]) { + cleanup_oct5066(); + return -ENXIO; + } + + return 0; + + out_unmap: + iounmap((void *)iomapadr); + out_rel: + release_region(PAGE_IO, 1); + return ret; +} + +module_init(init_oct5066); +module_exit(cleanup_oct5066); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jason Gunthorpe <jgg@deltatee.com>, David Woodhouse <dwmw2@infradead.org>"); +MODULE_DESCRIPTION("MTD map driver for Octagon 5066 Single Board Computer"); diff --git a/drivers/mtd/maps/omap-toto-flash.c b/drivers/mtd/maps/omap-toto-flash.c new file mode 100644 index 00000000000..496109071cb --- /dev/null +++ b/drivers/mtd/maps/omap-toto-flash.c @@ -0,0 +1,137 @@ +/* + * NOR Flash memory access on TI Toto board + * + * jzhang@ti.com (C) 2003 Texas Instruments. + * + * (C) 2002 MontVista Software, Inc. + * + * $Id: omap-toto-flash.c,v 1.3 2004/09/16 23:27:13 gleixner Exp $ + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> + +#include <linux/errno.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/hardware.h> +#include <asm/io.h> + + +#ifndef CONFIG_ARCH_OMAP +#error This is for OMAP architecture only +#endif + +//these lines need be moved to a hardware header file +#define OMAP_TOTO_FLASH_BASE 0xd8000000 +#define OMAP_TOTO_FLASH_SIZE 0x80000 + +static struct map_info omap_toto_map_flash = { + .name = "OMAP Toto flash", + .bankwidth = 2, + .virt = (void __iomem *)OMAP_TOTO_FLASH_BASE, +}; + + +static struct mtd_partition toto_flash_partitions[] = { + { + .name = "BootLoader", + .size = 0x00040000, /* hopefully u-boot will stay 128k + 128*/ + .offset = 0, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, { + .name = "ReservedSpace", + .size = 0x00030000, + .offset = MTDPART_OFS_APPEND, + //mask_flags: MTD_WRITEABLE, /* force read-only */ + }, { + .name = "EnvArea", /* bottom 64KiB for env vars */ + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static struct mtd_partition *parsed_parts; + +static struct mtd_info *flash_mtd; + +static int __init init_flash (void) +{ + + struct mtd_partition *parts; + int nb_parts = 0; + int parsed_nr_parts = 0; + const char *part_type; + + /* + * Static partition definition selection + */ + part_type = "static"; + + parts = toto_flash_partitions; + nb_parts = ARRAY_SIZE(toto_flash_partitions); + omap_toto_map_flash.size = OMAP_TOTO_FLASH_SIZE; + omap_toto_map_flash.phys = virt_to_phys(OMAP_TOTO_FLASH_BASE); + + simple_map_init(&omap_toto_map_flash); + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + printk(KERN_NOTICE "OMAP toto flash: probing %d-bit flash bus\n", + omap_toto_map_flash.bankwidth*8); + flash_mtd = do_map_probe("jedec_probe", &omap_toto_map_flash); + if (!flash_mtd) + return -ENXIO; + + if (parsed_nr_parts > 0) { + parts = parsed_parts; + nb_parts = parsed_nr_parts; + } + + if (nb_parts == 0) { + printk(KERN_NOTICE "OMAP toto flash: no partition info available," + "registering whole flash at once\n"); + if (add_mtd_device(flash_mtd)){ + return -ENXIO; + } + } else { + printk(KERN_NOTICE "Using %s partition definition\n", + part_type); + return add_mtd_partitions(flash_mtd, parts, nb_parts); + } + return 0; +} + +int __init omap_toto_mtd_init(void) +{ + int status; + + if (status = init_flash()) { + printk(KERN_ERR "OMAP Toto Flash: unable to init map for toto flash\n"); + } + return status; +} + +static void __exit omap_toto_mtd_cleanup(void) +{ + if (flash_mtd) { + del_mtd_partitions(flash_mtd); + map_destroy(flash_mtd); + if (parsed_parts) + kfree(parsed_parts); + } +} + +module_init(omap_toto_mtd_init); +module_exit(omap_toto_mtd_cleanup); + +MODULE_AUTHOR("Jian Zhang"); +MODULE_DESCRIPTION("OMAP Toto board map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/pb1550-flash.c b/drivers/mtd/maps/pb1550-flash.c new file mode 100644 index 00000000000..1424726a219 --- /dev/null +++ b/drivers/mtd/maps/pb1550-flash.c @@ -0,0 +1,203 @@ +/* + * Flash memory access on Alchemy Pb1550 board + * + * $Id: pb1550-flash.c,v 1.6 2004/11/04 13:24:15 gleixner Exp $ + * + * (C) 2004 Embedded Edge, LLC, based on pb1550-flash.c: + * (C) 2003 Pete Popov <ppopov@pacbell.net> + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> +#include <asm/au1000.h> +#include <asm/pb1550.h> + +#ifdef DEBUG_RW +#define DBG(x...) printk(x) +#else +#define DBG(x...) +#endif + +static unsigned long window_addr; +static unsigned long window_size; + + +static struct map_info pb1550_map = { + .name = "Pb1550 flash", +}; + +static unsigned char flash_bankwidth = 4; + +/* + * Support only 64MB NOR Flash parts + */ + +#ifdef PB1550_BOTH_BANKS +/* both banks will be used. Combine the first bank and the first + * part of the second bank together into a single jffs/jffs2 + * partition. + */ +static struct mtd_partition pb1550_partitions[] = { + /* assume boot[2:0]:swap is '0000' or '1000', which translates to: + * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash + * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash + */ + { + .name = "User FS", + .size = (0x1FC00000 - 0x18000000), + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = (0x300000 - 0x40000), /* last 256KB is yamon env */ + .offset = MTDPART_OFS_APPEND, + } +}; +#elif defined(PB1550_BOOT_ONLY) +static struct mtd_partition pb1550_partitions[] = { + /* assume boot[2:0]:swap is '0000' or '1000', which translates to: + * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash + */ + { + .name = "User FS", + .size = 0x03c00000, + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = (0x300000-0x40000), /* last 256KB is yamon env */ + .offset = MTDPART_OFS_APPEND, + } +}; +#elif defined(PB1550_USER_ONLY) +static struct mtd_partition pb1550_partitions[] = { + /* assume boot[2:0]:swap is '0000' or '1000', which translates to: + * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash + */ + { + .name = "User FS", + .size = (0x4000000 - 0x200000), /* reserve 2MB for raw kernel */ + .offset = 0x0000000 + },{ + .name = "raw kernel", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; +#else +#error MTD_PB1550 define combo error /* should never happen */ +#endif + +#define NB_OF(x) (sizeof(x)/sizeof(x[0])) + +static struct mtd_info *mymtd; + +/* + * Probe the flash density and setup window address and size + * based on user CONFIG options. There are times when we don't + * want the MTD driver to be probing the boot or user flash, + * so having the option to enable only one bank is important. + */ +int setup_flash_params(void) +{ + u16 boot_swapboot; + boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) | + ((bcsr->status >> 6) & 0x1); + printk("Pb1550 MTD: boot:swap %d\n", boot_swapboot); + + switch (boot_swapboot) { + case 0: /* 512Mbit devices, both enabled */ + case 1: + case 8: + case 9: +#if defined(PB1550_BOTH_BANKS) + window_addr = 0x18000000; + window_size = 0x8000000; +#elif defined(PB1550_BOOT_ONLY) + window_addr = 0x1C000000; + window_size = 0x4000000; +#else /* USER ONLY */ + window_addr = 0x1E000000; + window_size = 0x4000000; +#endif + break; + case 0xC: + case 0xD: + case 0xE: + case 0xF: + /* 64 MB Boot NOR Flash is disabled */ + /* and the start address is moved to 0x0C00000 */ + window_addr = 0x0C000000; + window_size = 0x4000000; + default: + printk("Pb1550 MTD: unsupported boot:swap setting\n"); + return 1; + } + return 0; +} + +int __init pb1550_mtd_init(void) +{ + struct mtd_partition *parts; + int nb_parts = 0; + + /* Default flash bankwidth */ + pb1550_map.bankwidth = flash_bankwidth; + + if (setup_flash_params()) + return -ENXIO; + + /* + * Static partition definition selection + */ + parts = pb1550_partitions; + nb_parts = NB_OF(pb1550_partitions); + pb1550_map.size = window_size; + + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + printk(KERN_NOTICE "Pb1550 flash: probing %d-bit flash bus\n", + pb1550_map.bankwidth*8); + pb1550_map.virt = ioremap(window_addr, window_size); + mymtd = do_map_probe("cfi_probe", &pb1550_map); + if (!mymtd) return -ENXIO; + mymtd->owner = THIS_MODULE; + + add_mtd_partitions(mymtd, parts, nb_parts); + return 0; +} + +static void __exit pb1550_mtd_cleanup(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } +} + +module_init(pb1550_mtd_init); +module_exit(pb1550_mtd_cleanup); + +MODULE_AUTHOR("Embedded Edge, LLC"); +MODULE_DESCRIPTION("Pb1550 mtd map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/pb1xxx-flash.c b/drivers/mtd/maps/pb1xxx-flash.c new file mode 100644 index 00000000000..06e73154055 --- /dev/null +++ b/drivers/mtd/maps/pb1xxx-flash.c @@ -0,0 +1,178 @@ +/* + * Flash memory access on Alchemy Pb1xxx boards + * + * (C) 2001 Pete Popov <ppopov@mvista.com> + * + * $Id: pb1xxx-flash.c,v 1.14 2004/11/04 13:24:15 gleixner Exp $ + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> + +#ifdef DEBUG_RW +#define DBG(x...) printk(x) +#else +#define DBG(x...) +#endif + +#ifdef CONFIG_MIPS_PB1000 + +#define WINDOW_ADDR 0x1F800000 +#define WINDOW_SIZE 0x800000 + +static struct mtd_partition pb1xxx_partitions[] = { + { + .name = "yamon env", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_WRITEABLE}, + { + .name = "User FS", + .size = 0x003e0000, + .offset = 0x20000,}, + { + .name = "boot code", + .size = 0x100000, + .offset = 0x400000, + .mask_flags = MTD_WRITEABLE}, + { + .name = "raw/kernel", + .size = 0x300000, + .offset = 0x500000} +}; + +#elif defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1100) + +#if defined(CONFIG_MTD_PB1500_BOOT) && defined(CONFIG_MTD_PB1500_USER) +/* both 32MB banks will be used. Combine the first 32MB bank and the + * first 28MB of the second bank together into a single jffs/jffs2 + * partition. + */ +#define WINDOW_ADDR 0x1C000000 +#define WINDOW_SIZE 0x4000000 +static struct mtd_partition pb1xxx_partitions[] = { + { + .name = "User FS", + .size = 0x3c00000, + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = 0x3c00000, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = 0x02c0000, + .offset = 0x3d00000 + } +}; +#elif defined(CONFIG_MTD_PB1500_BOOT) && !defined(CONFIG_MTD_PB1500_USER) +#define WINDOW_ADDR 0x1E000000 +#define WINDOW_SIZE 0x2000000 +static struct mtd_partition pb1xxx_partitions[] = { + { + .name = "User FS", + .size = 0x1c00000, + .offset = 0x0000000 + },{ + .name = "yamon", + .size = 0x0100000, + .offset = 0x1c00000, + .mask_flags = MTD_WRITEABLE + },{ + .name = "raw kernel", + .size = 0x02c0000, + .offset = 0x1d00000 + } +}; +#elif !defined(CONFIG_MTD_PB1500_BOOT) && defined(CONFIG_MTD_PB1500_USER) +#define WINDOW_ADDR 0x1C000000 +#define WINDOW_SIZE 0x2000000 +static struct mtd_partition pb1xxx_partitions[] = { + { + .name = "User FS", + .size = 0x1e00000, + .offset = 0x0000000 + },{ + .name = "raw kernel", + .size = 0x0200000, + .offset = 0x1e00000, + } +}; +#else +#error MTD_PB1500 define combo error /* should never happen */ +#endif +#else +#error Unsupported board +#endif + +#define NAME "Pb1x00 Linux Flash" +#define PADDR WINDOW_ADDR +#define BUSWIDTH 4 +#define SIZE WINDOW_SIZE +#define PARTITIONS 4 + +static struct map_info pb1xxx_mtd_map = { + .name = NAME, + .size = SIZE, + .bankwidth = BUSWIDTH, + .phys = PADDR, +}; + +static struct mtd_info *pb1xxx_mtd; + +int __init pb1xxx_mtd_init(void) +{ + struct mtd_partition *parts; + int nb_parts = 0; + char *part_type; + + /* + * Static partition definition selection + */ + part_type = "static"; + parts = pb1xxx_partitions; + nb_parts = ARRAY_SIZE(pb1xxx_partitions); + + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + printk(KERN_NOTICE "Pb1xxx flash: probing %d-bit flash bus\n", + BUSWIDTH*8); + pb1xxx_mtd_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); + + simple_map_init(&pb1xxx_mtd_map); + + pb1xxx_mtd = do_map_probe("cfi_probe", &pb1xxx_mtd_map); + if (!pb1xxx_mtd) return -ENXIO; + pb1xxx_mtd->owner = THIS_MODULE; + + add_mtd_partitions(pb1xxx_mtd, parts, nb_parts); + return 0; +} + +static void __exit pb1xxx_mtd_cleanup(void) +{ + if (pb1xxx_mtd) { + del_mtd_partitions(pb1xxx_mtd); + map_destroy(pb1xxx_mtd); + iounmap((void *) pb1xxx_mtd_map.virt); + } +} + +module_init(pb1xxx_mtd_init); +module_exit(pb1xxx_mtd_cleanup); + +MODULE_AUTHOR("Pete Popov"); +MODULE_DESCRIPTION("Pb1xxx CFI map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c new file mode 100644 index 00000000000..08b60bdc538 --- /dev/null +++ b/drivers/mtd/maps/pci.c @@ -0,0 +1,388 @@ +/* + * linux/drivers/mtd/maps/pci.c + * + * Copyright (C) 2001 Russell King, All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * $Id: pci.c,v 1.9 2004/11/28 09:40:40 dwmw2 Exp $ + * + * Generic PCI memory map driver. We support the following boards: + * - Intel IQ80310 ATU. + * - Intel EBSA285 (blank rom programming mode). Tested working 27/09/2001 + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +struct map_pci_info; + +struct mtd_pci_info { + int (*init)(struct pci_dev *dev, struct map_pci_info *map); + void (*exit)(struct pci_dev *dev, struct map_pci_info *map); + unsigned long (*translate)(struct map_pci_info *map, unsigned long ofs); + const char *map_name; +}; + +struct map_pci_info { + struct map_info map; + void __iomem *base; + void (*exit)(struct pci_dev *dev, struct map_pci_info *map); + unsigned long (*translate)(struct map_pci_info *map, unsigned long ofs); + struct pci_dev *dev; +}; + +static map_word mtd_pci_read8(struct map_info *_map, unsigned long ofs) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; + map_word val; + val.x[0]= readb(map->base + map->translate(map, ofs)); +// printk("read8 : %08lx => %02x\n", ofs, val.x[0]); + return val; +} + +#if 0 +static map_word mtd_pci_read16(struct map_info *_map, unsigned long ofs) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; + map_word val; + val.x[0] = readw(map->base + map->translate(map, ofs)); +// printk("read16: %08lx => %04x\n", ofs, val.x[0]); + return val; +} +#endif +static map_word mtd_pci_read32(struct map_info *_map, unsigned long ofs) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; + map_word val; + val.x[0] = readl(map->base + map->translate(map, ofs)); +// printk("read32: %08lx => %08x\n", ofs, val.x[0]); + return val; +} + +static void mtd_pci_copyfrom(struct map_info *_map, void *to, unsigned long from, ssize_t len) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; + memcpy_fromio(to, map->base + map->translate(map, from), len); +} + +static void mtd_pci_write8(struct map_info *_map, map_word val, unsigned long ofs) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; +// printk("write8 : %08lx <= %02x\n", ofs, val.x[0]); + writeb(val.x[0], map->base + map->translate(map, ofs)); +} + +#if 0 +static void mtd_pci_write16(struct map_info *_map, map_word val, unsigned long ofs) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; +// printk("write16: %08lx <= %04x\n", ofs, val.x[0]); + writew(val.x[0], map->base + map->translate(map, ofs)); +} +#endif +static void mtd_pci_write32(struct map_info *_map, map_word val, unsigned long ofs) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; +// printk("write32: %08lx <= %08x\n", ofs, val.x[0]); + writel(val.x[0], map->base + map->translate(map, ofs)); +} + +static void mtd_pci_copyto(struct map_info *_map, unsigned long to, const void *from, ssize_t len) +{ + struct map_pci_info *map = (struct map_pci_info *)_map; + memcpy_toio(map->base + map->translate(map, to), from, len); +} + +static struct map_info mtd_pci_map = { + .phys = NO_XIP, + .copy_from = mtd_pci_copyfrom, + .copy_to = mtd_pci_copyto, +}; + +/* + * Intel IOP80310 Flash driver + */ + +static int +intel_iq80310_init(struct pci_dev *dev, struct map_pci_info *map) +{ + u32 win_base; + + map->map.bankwidth = 1; + map->map.read = mtd_pci_read8, + map->map.write = mtd_pci_write8, + + map->map.size = 0x00800000; + map->base = ioremap_nocache(pci_resource_start(dev, 0), + pci_resource_len(dev, 0)); + + if (!map->base) + return -ENOMEM; + + /* + * We want to base the memory window at Xscale + * bus address 0, not 0x1000. + */ + pci_read_config_dword(dev, 0x44, &win_base); + pci_write_config_dword(dev, 0x44, 0); + + map->map.map_priv_2 = win_base; + + return 0; +} + +static void +intel_iq80310_exit(struct pci_dev *dev, struct map_pci_info *map) +{ + if (map->base) + iounmap(map->base); + pci_write_config_dword(dev, 0x44, map->map.map_priv_2); +} + +static unsigned long +intel_iq80310_translate(struct map_pci_info *map, unsigned long ofs) +{ + unsigned long page_addr = ofs & 0x00400000; + + /* + * This mundges the flash location so we avoid + * the first 80 bytes (they appear to read nonsense). + */ + if (page_addr) { + writel(0x00000008, map->base + 0x1558); + writel(0x00000000, map->base + 0x1550); + } else { + writel(0x00000007, map->base + 0x1558); + writel(0x00800000, map->base + 0x1550); + ofs += 0x00800000; + } + + return ofs; +} + +static struct mtd_pci_info intel_iq80310_info = { + .init = intel_iq80310_init, + .exit = intel_iq80310_exit, + .translate = intel_iq80310_translate, + .map_name = "cfi_probe", +}; + +/* + * Intel DC21285 driver + */ + +static int +intel_dc21285_init(struct pci_dev *dev, struct map_pci_info *map) +{ + unsigned long base, len; + + base = pci_resource_start(dev, PCI_ROM_RESOURCE); + len = pci_resource_len(dev, PCI_ROM_RESOURCE); + + if (!len || !base) { + /* + * No ROM resource + */ + base = pci_resource_start(dev, 2); + len = pci_resource_len(dev, 2); + + /* + * We need to re-allocate PCI BAR2 address range to the + * PCI ROM BAR, and disable PCI BAR2. + */ + } else { + /* + * Hmm, if an address was allocated to the ROM resource, but + * not enabled, should we be allocating a new resource for it + * or simply enabling it? + */ + if (!(pci_resource_flags(dev, PCI_ROM_RESOURCE) & + IORESOURCE_ROM_ENABLE)) { + u32 val; + pci_resource_flags(dev, PCI_ROM_RESOURCE) |= IORESOURCE_ROM_ENABLE; + pci_read_config_dword(dev, PCI_ROM_ADDRESS, &val); + val |= PCI_ROM_ADDRESS_ENABLE; + pci_write_config_dword(dev, PCI_ROM_ADDRESS, val); + printk("%s: enabling expansion ROM\n", pci_name(dev)); + } + } + + if (!len || !base) + return -ENXIO; + + map->map.bankwidth = 4; + map->map.read = mtd_pci_read32, + map->map.write = mtd_pci_write32, + map->map.size = len; + map->base = ioremap_nocache(base, len); + + if (!map->base) + return -ENOMEM; + + return 0; +} + +static void +intel_dc21285_exit(struct pci_dev *dev, struct map_pci_info *map) +{ + u32 val; + + if (map->base) + iounmap(map->base); + + /* + * We need to undo the PCI BAR2/PCI ROM BAR address alteration. + */ + pci_resource_flags(dev, PCI_ROM_RESOURCE) &= ~IORESOURCE_ROM_ENABLE; + pci_read_config_dword(dev, PCI_ROM_ADDRESS, &val); + val &= ~PCI_ROM_ADDRESS_ENABLE; + pci_write_config_dword(dev, PCI_ROM_ADDRESS, val); +} + +static unsigned long +intel_dc21285_translate(struct map_pci_info *map, unsigned long ofs) +{ + return ofs & 0x00ffffc0 ? ofs : (ofs ^ (1 << 5)); +} + +static struct mtd_pci_info intel_dc21285_info = { + .init = intel_dc21285_init, + .exit = intel_dc21285_exit, + .translate = intel_dc21285_translate, + .map_name = "jedec_probe", +}; + +/* + * PCI device ID table + */ + +static struct pci_device_id mtd_pci_ids[] = { + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = 0x530d, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = PCI_CLASS_MEMORY_OTHER << 8, + .class_mask = 0xffff00, + .driver_data = (unsigned long)&intel_iq80310_info, + }, + { + .vendor = PCI_VENDOR_ID_DEC, + .device = PCI_DEVICE_ID_DEC_21285, + .subvendor = 0, /* DC21285 defaults to 0 on reset */ + .subdevice = 0, /* DC21285 defaults to 0 on reset */ + .driver_data = (unsigned long)&intel_dc21285_info, + }, + { 0, } +}; + +/* + * Generic code follows. + */ + +static int __devinit +mtd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + struct mtd_pci_info *info = (struct mtd_pci_info *)id->driver_data; + struct map_pci_info *map = NULL; + struct mtd_info *mtd = NULL; + int err; + + err = pci_enable_device(dev); + if (err) + goto out; + + err = pci_request_regions(dev, "pci mtd"); + if (err) + goto out; + + map = kmalloc(sizeof(*map), GFP_KERNEL); + err = -ENOMEM; + if (!map) + goto release; + + map->map = mtd_pci_map; + map->map.name = pci_name(dev); + map->dev = dev; + map->exit = info->exit; + map->translate = info->translate; + + err = info->init(dev, map); + if (err) + goto release; + + /* tsk - do_map_probe should take const char * */ + mtd = do_map_probe((char *)info->map_name, &map->map); + err = -ENODEV; + if (!mtd) + goto release; + + mtd->owner = THIS_MODULE; + add_mtd_device(mtd); + + pci_set_drvdata(dev, mtd); + + return 0; + +release: + if (mtd) + map_destroy(mtd); + + if (map) { + map->exit(dev, map); + kfree(map); + } + + pci_release_regions(dev); +out: + return err; +} + +static void __devexit +mtd_pci_remove(struct pci_dev *dev) +{ + struct mtd_info *mtd = pci_get_drvdata(dev); + struct map_pci_info *map = mtd->priv; + + del_mtd_device(mtd); + map_destroy(mtd); + map->exit(dev, map); + kfree(map); + + pci_set_drvdata(dev, NULL); + pci_release_regions(dev); +} + +static struct pci_driver mtd_pci_driver = { + .name = "MTD PCI", + .probe = mtd_pci_probe, + .remove = __devexit_p(mtd_pci_remove), + .id_table = mtd_pci_ids, +}; + +static int __init mtd_pci_maps_init(void) +{ + return pci_module_init(&mtd_pci_driver); +} + +static void __exit mtd_pci_maps_exit(void) +{ + pci_unregister_driver(&mtd_pci_driver); +} + +module_init(mtd_pci_maps_init); +module_exit(mtd_pci_maps_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); +MODULE_DESCRIPTION("Generic PCI map driver"); +MODULE_DEVICE_TABLE(pci, mtd_pci_ids); + diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c new file mode 100644 index 00000000000..e37b4c1976e --- /dev/null +++ b/drivers/mtd/maps/pcmciamtd.c @@ -0,0 +1,860 @@ +/* + * $Id: pcmciamtd.c,v 1.51 2004/07/12 22:38:29 dwmw2 Exp $ + * + * pcmciamtd.c - MTD driver for PCMCIA flash memory cards + * + * Author: Simon Evans <spse@secret.org.uk> + * + * Copyright (C) 2002 Simon Evans + * + * Licence: GPL + * + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <asm/io.h> +#include <asm/system.h> + +#include <pcmcia/version.h> +#include <pcmcia/cs_types.h> +#include <pcmcia/cs.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/ds.h> + +#include <linux/mtd/map.h> +#include <linux/mtd/mtd.h> + +#ifdef CONFIG_MTD_DEBUG +static int debug = CONFIG_MTD_DEBUG_VERBOSE; +MODULE_PARM(debug, "i"); +MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy"); +#undef DEBUG +#define DEBUG(n, format, arg...) \ + if (n <= debug) { \ + printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \ + } + +#else +#undef DEBUG +#define DEBUG(n, arg...) +static const int debug = 0; +#endif + +#define err(format, arg...) printk(KERN_ERR "pcmciamtd: " format "\n" , ## arg) +#define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) +#define warn(format, arg...) printk(KERN_WARNING "pcmciamtd: " format "\n" , ## arg) + + +#define DRIVER_DESC "PCMCIA Flash memory card driver" +#define DRIVER_VERSION "$Revision: 1.51 $" + +/* Size of the PCMCIA address space: 26 bits = 64 MB */ +#define MAX_PCMCIA_ADDR 0x4000000 + +struct pcmciamtd_dev { + dev_link_t link; /* PCMCIA link */ + dev_node_t node; /* device node */ + caddr_t win_base; /* ioremapped address of PCMCIA window */ + unsigned int win_size; /* size of window */ + unsigned int offset; /* offset into card the window currently points at */ + struct map_info pcmcia_map; + struct mtd_info *mtd_info; + int vpp; + char mtd_name[sizeof(struct cistpl_vers_1_t)]; +}; + + +static dev_info_t dev_info = "pcmciamtd"; +static dev_link_t *dev_list; + +/* Module parameters */ + +/* 2 = do 16-bit transfers, 1 = do 8-bit transfers */ +static int bankwidth = 2; + +/* Speed of memory accesses, in ns */ +static int mem_speed; + +/* Force the size of an SRAM card */ +static int force_size; + +/* Force Vpp */ +static int vpp; + +/* Set Vpp */ +static int setvpp; + +/* Force card to be treated as FLASH, ROM or RAM */ +static int mem_type; + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_PARM(bankwidth, "i"); +MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)"); +MODULE_PARM(mem_speed, "i"); +MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns"); +MODULE_PARM(force_size, "i"); +MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)"); +MODULE_PARM(setvpp, "i"); +MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)"); +MODULE_PARM(vpp, "i"); +MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)"); +MODULE_PARM(mem_type, "i"); +MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)"); + + +/* read/write{8,16} copy_{from,to} routines with window remapping to access whole card */ +static caddr_t remap_window(struct map_info *map, unsigned long to) +{ + struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; + window_handle_t win = (window_handle_t)map->map_priv_2; + memreq_t mrq; + int ret; + + if(!(dev->link.state & DEV_PRESENT)) { + DEBUG(1, "device removed state = 0x%4.4X", dev->link.state); + return 0; + } + + mrq.CardOffset = to & ~(dev->win_size-1); + if(mrq.CardOffset != dev->offset) { + DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", + dev->offset, mrq.CardOffset); + mrq.Page = 0; + if( (ret = pcmcia_map_mem_page(win, &mrq)) != CS_SUCCESS) { + cs_error(dev->link.handle, MapMemPage, ret); + return NULL; + } + dev->offset = mrq.CardOffset; + } + return dev->win_base + (to & (dev->win_size-1)); +} + + +static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) +{ + caddr_t addr; + map_word d = {{0}}; + + addr = remap_window(map, ofs); + if(!addr) + return d; + + d.x[0] = readb(addr); + DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d.x[0]); + return d; +} + + +static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) +{ + caddr_t addr; + map_word d = {{0}}; + + addr = remap_window(map, ofs); + if(!addr) + return d; + + d.x[0] = readw(addr); + DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d.x[0]); + return d; +} + + +static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; + unsigned long win_size = dev->win_size; + + DEBUG(3, "to = %p from = %lu len = %u", to, from, len); + while(len) { + int toread = win_size - (from & (win_size-1)); + caddr_t addr; + + if(toread > len) + toread = len; + + addr = remap_window(map, from); + if(!addr) + return; + + DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); + memcpy_fromio(to, addr, toread); + len -= toread; + to += toread; + from += toread; + } +} + + +static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr) +{ + caddr_t addr = remap_window(map, adr); + + if(!addr) + return; + + DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, addr, d.x[0]); + writeb(d.x[0], addr); +} + + +static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr) +{ + caddr_t addr = remap_window(map, adr); + if(!addr) + return; + + DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, addr, d.x[0]); + writew(d.x[0], addr); +} + + +static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; + unsigned long win_size = dev->win_size; + + DEBUG(3, "to = %lu from = %p len = %u", to, from, len); + while(len) { + int towrite = win_size - (to & (win_size-1)); + caddr_t addr; + + if(towrite > len) + towrite = len; + + addr = remap_window(map, to); + if(!addr) + return; + + DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); + memcpy_toio(addr, from, towrite); + len -= towrite; + to += towrite; + from += towrite; + } +} + + +/* read/write{8,16} copy_{from,to} routines with direct access */ + +#define DEV_REMOVED(x) (!(*(u_int *)x->map_priv_1 & DEV_PRESENT)) + +static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) +{ + caddr_t win_base = (caddr_t)map->map_priv_2; + map_word d = {{0}}; + + if(DEV_REMOVED(map)) + return d; + + d.x[0] = readb(win_base + ofs); + DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d.x[0]); + return d; +} + + +static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) +{ + caddr_t win_base = (caddr_t)map->map_priv_2; + map_word d = {{0}}; + + if(DEV_REMOVED(map)) + return d; + + d.x[0] = readw(win_base + ofs); + DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, win_base + ofs, d.x[0]); + return d; +} + + +static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + caddr_t win_base = (caddr_t)map->map_priv_2; + + if(DEV_REMOVED(map)) + return; + + DEBUG(3, "to = %p from = %lu len = %u", to, from, len); + memcpy_fromio(to, win_base + from, len); +} + + +static void pcmcia_write8(struct map_info *map, u8 d, unsigned long adr) +{ + caddr_t win_base = (caddr_t)map->map_priv_2; + + if(DEV_REMOVED(map)) + return; + + DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, win_base + adr, d); + writeb(d, win_base + adr); +} + + +static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr) +{ + caddr_t win_base = (caddr_t)map->map_priv_2; + + if(DEV_REMOVED(map)) + return; + + DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, win_base + adr, d); + writew(d, win_base + adr); +} + + +static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + caddr_t win_base = (caddr_t)map->map_priv_2; + + if(DEV_REMOVED(map)) + return; + + DEBUG(3, "to = %lu from = %p len = %u", to, from, len); + memcpy_toio(win_base + to, from, len); +} + + +static void pcmciamtd_set_vpp(struct map_info *map, int on) +{ + struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; + dev_link_t *link = &dev->link; + modconf_t mod; + int ret; + + mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID; + mod.Vcc = 0; + mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0; + + DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); + ret = pcmcia_modify_configuration(link->handle, &mod); + if(ret != CS_SUCCESS) { + cs_error(link->handle, ModifyConfiguration, ret); + } +} + + +/* After a card is removed, pcmciamtd_release() will unregister the + * device, and release the PCMCIA configuration. If the device is + * still open, this will be postponed until it is closed. + */ + +static void pcmciamtd_release(dev_link_t *link) +{ + struct pcmciamtd_dev *dev = link->priv; + + DEBUG(3, "link = 0x%p", link); + + if (link->win) { + if(dev->win_base) { + iounmap(dev->win_base); + dev->win_base = NULL; + } + pcmcia_release_window(link->win); + } + pcmcia_release_configuration(link->handle); + link->state &= ~DEV_CONFIG; +} + + +static void card_settings(struct pcmciamtd_dev *dev, dev_link_t *link, int *new_name) +{ + int rc; + tuple_t tuple; + cisparse_t parse; + u_char buf[64]; + + tuple.Attributes = 0; + tuple.TupleData = (cisdata_t *)buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; + tuple.DesiredTuple = RETURN_FIRST_TUPLE; + + rc = pcmcia_get_first_tuple(link->handle, &tuple); + while(rc == CS_SUCCESS) { + rc = pcmcia_get_tuple_data(link->handle, &tuple); + if(rc != CS_SUCCESS) { + cs_error(link->handle, GetTupleData, rc); + break; + } + rc = pcmcia_parse_tuple(link->handle, &tuple, &parse); + if(rc != CS_SUCCESS) { + cs_error(link->handle, ParseTuple, rc); + break; + } + + switch(tuple.TupleCode) { + case CISTPL_FORMAT: { + cistpl_format_t *t = &parse.format; + (void)t; /* Shut up, gcc */ + DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", + t->type, t->edc, t->offset, t->length); + break; + + } + + case CISTPL_DEVICE: { + cistpl_device_t *t = &parse.device; + int i; + DEBUG(2, "Common memory:"); + dev->pcmcia_map.size = t->dev[0].size; + for(i = 0; i < t->ndev; i++) { + DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); + DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); + DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); + DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); + } + break; + } + + case CISTPL_VERS_1: { + cistpl_vers_1_t *t = &parse.version_1; + int i; + if(t->ns) { + dev->mtd_name[0] = '\0'; + for(i = 0; i < t->ns; i++) { + if(i) + strcat(dev->mtd_name, " "); + strcat(dev->mtd_name, t->str+t->ofs[i]); + } + } + DEBUG(2, "Found name: %s", dev->mtd_name); + break; + } + + case CISTPL_JEDEC_C: { + cistpl_jedec_t *t = &parse.jedec; + int i; + for(i = 0; i < t->nid; i++) { + DEBUG(2, "JEDEC: 0x%02x 0x%02x", t->id[i].mfr, t->id[i].info); + } + break; + } + + case CISTPL_DEVICE_GEO: { + cistpl_device_geo_t *t = &parse.device_geo; + int i; + dev->pcmcia_map.bankwidth = t->geo[0].buswidth; + for(i = 0; i < t->ngeo; i++) { + DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); + DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); + DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); + DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); + DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); + DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); + } + break; + } + + default: + DEBUG(2, "Unknown tuple code %d", tuple.TupleCode); + } + + rc = pcmcia_get_next_tuple(link->handle, &tuple); + } + if(!dev->pcmcia_map.size) + dev->pcmcia_map.size = MAX_PCMCIA_ADDR; + + if(!dev->pcmcia_map.bankwidth) + dev->pcmcia_map.bankwidth = 2; + + if(force_size) { + dev->pcmcia_map.size = force_size << 20; + DEBUG(2, "size forced to %dM", force_size); + } + + if(bankwidth) { + dev->pcmcia_map.bankwidth = bankwidth; + DEBUG(2, "bankwidth forced to %d", bankwidth); + } + + dev->pcmcia_map.name = dev->mtd_name; + if(!dev->mtd_name[0]) { + strcpy(dev->mtd_name, "PCMCIA Memory card"); + *new_name = 1; + } + + DEBUG(1, "Device: Size: %lu Width:%d Name: %s", + dev->pcmcia_map.size, dev->pcmcia_map.bankwidth << 3, dev->mtd_name); +} + + +/* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event + * is received, to configure the PCMCIA socket, and to make the + * MTD device available to the system. + */ + +#define CS_CHECK(fn, ret) \ +do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +static void pcmciamtd_config(dev_link_t *link) +{ + struct pcmciamtd_dev *dev = link->priv; + struct mtd_info *mtd = NULL; + cs_status_t status; + win_req_t req; + int last_ret = 0, last_fn = 0; + int ret; + int i; + config_info_t t; + static char *probes[] = { "jedec_probe", "cfi_probe" }; + cisinfo_t cisinfo; + int new_name = 0; + + DEBUG(3, "link=0x%p", link); + + /* Configure card */ + link->state |= DEV_CONFIG; + + DEBUG(2, "Validating CIS"); + ret = pcmcia_validate_cis(link->handle, &cisinfo); + if(ret != CS_SUCCESS) { + cs_error(link->handle, GetTupleData, ret); + } else { + DEBUG(2, "ValidateCIS found %d chains", cisinfo.Chains); + } + + card_settings(dev, link, &new_name); + + dev->pcmcia_map.phys = NO_XIP; + dev->pcmcia_map.copy_from = pcmcia_copy_from_remap; + dev->pcmcia_map.copy_to = pcmcia_copy_to_remap; + if (dev->pcmcia_map.bankwidth == 1) { + dev->pcmcia_map.read = pcmcia_read8_remap; + dev->pcmcia_map.write = pcmcia_write8_remap; + } else { + dev->pcmcia_map.read = pcmcia_read16_remap; + dev->pcmcia_map.write = pcmcia_write16_remap; + } + if(setvpp == 1) + dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp; + + /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum + that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the + whole card - otherwise we try smaller windows until we succeed */ + + req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE; + req.Attributes |= (dev->pcmcia_map.bankwidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16; + req.Base = 0; + req.AccessSpeed = mem_speed; + link->win = (window_handle_t)link->handle; + req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR; + dev->win_size = 0; + + do { + int ret; + DEBUG(2, "requesting window with size = %dKiB memspeed = %d", + req.Size >> 10, req.AccessSpeed); + ret = pcmcia_request_window(&link->handle, &req, &link->win); + DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); + if(ret) { + req.Size >>= 1; + } else { + DEBUG(2, "Got window of size %dKiB", req.Size >> 10); + dev->win_size = req.Size; + break; + } + } while(req.Size >= 0x1000); + + DEBUG(2, "dev->win_size = %d", dev->win_size); + + if(!dev->win_size) { + err("Cant allocate memory window"); + pcmciamtd_release(link); + return; + } + DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); + + /* Get write protect status */ + CS_CHECK(GetStatus, pcmcia_get_status(link->handle, &status)); + DEBUG(2, "status value: 0x%x window handle = 0x%8.8lx", + status.CardState, (unsigned long)link->win); + dev->win_base = ioremap(req.Base, req.Size); + if(!dev->win_base) { + err("ioremap(%lu, %u) failed", req.Base, req.Size); + pcmciamtd_release(link); + return; + } + DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x", + dev, req.Base, dev->win_base, req.Size); + + dev->offset = 0; + dev->pcmcia_map.map_priv_1 = (unsigned long)dev; + dev->pcmcia_map.map_priv_2 = (unsigned long)link->win; + + DEBUG(2, "Getting configuration"); + CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link->handle, &t)); + DEBUG(2, "Vcc = %d Vpp1 = %d Vpp2 = %d", t.Vcc, t.Vpp1, t.Vpp2); + dev->vpp = (vpp) ? vpp : t.Vpp1; + link->conf.Attributes = 0; + link->conf.Vcc = t.Vcc; + if(setvpp == 2) { + link->conf.Vpp1 = dev->vpp; + link->conf.Vpp2 = dev->vpp; + } else { + link->conf.Vpp1 = 0; + link->conf.Vpp2 = 0; + } + + link->conf.IntType = INT_MEMORY; + link->conf.ConfigBase = t.ConfigBase; + link->conf.Status = t.Status; + link->conf.Pin = t.Pin; + link->conf.Copy = t.Copy; + link->conf.ExtStatus = t.ExtStatus; + link->conf.ConfigIndex = 0; + link->conf.Present = t.Present; + DEBUG(2, "Setting Configuration"); + ret = pcmcia_request_configuration(link->handle, &link->conf); + if(ret != CS_SUCCESS) { + cs_error(link->handle, RequestConfiguration, ret); + } + + if(mem_type == 1) { + mtd = do_map_probe("map_ram", &dev->pcmcia_map); + } else if(mem_type == 2) { + mtd = do_map_probe("map_rom", &dev->pcmcia_map); + } else { + for(i = 0; i < sizeof(probes) / sizeof(char *); i++) { + DEBUG(1, "Trying %s", probes[i]); + mtd = do_map_probe(probes[i], &dev->pcmcia_map); + if(mtd) + break; + + DEBUG(1, "FAILED: %s", probes[i]); + } + } + + if(!mtd) { + DEBUG(1, "Cant find an MTD"); + pcmciamtd_release(link); + return; + } + + dev->mtd_info = mtd; + mtd->owner = THIS_MODULE; + + if(new_name) { + int size = 0; + char unit = ' '; + /* Since we are using a default name, make it better by adding in the + size */ + if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */ + size = mtd->size >> 10; + unit = 'K'; + } else { + size = mtd->size >> 20; + unit = 'M'; + } + snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card"); + } + + /* If the memory found is fits completely into the mapped PCMCIA window, + use the faster non-remapping read/write functions */ + if(mtd->size <= dev->win_size) { + DEBUG(1, "Using non remapping memory functions"); + dev->pcmcia_map.map_priv_1 = (unsigned long)&(dev->link.state); + dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; + if (dev->pcmcia_map.bankwidth == 1) { + dev->pcmcia_map.read = pcmcia_read8; + dev->pcmcia_map.write = pcmcia_write8; + } else { + dev->pcmcia_map.read = pcmcia_read16; + dev->pcmcia_map.write = pcmcia_write16; + } + dev->pcmcia_map.copy_from = pcmcia_copy_from; + dev->pcmcia_map.copy_to = pcmcia_copy_to; + } + + if(add_mtd_device(mtd)) { + map_destroy(mtd); + dev->mtd_info = NULL; + err("Couldnt register MTD device"); + pcmciamtd_release(link); + return; + } + snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index); + info("mtd%d: %s", mtd->index, mtd->name); + link->state &= ~DEV_CONFIG_PENDING; + link->dev = &dev->node; + return; + + cs_failed: + cs_error(link->handle, last_fn, last_ret); + err("CS Error, exiting"); + pcmciamtd_release(link); + return; +} + + +/* The card status event handler. Mostly, this schedules other + * stuff to run after an event is received. A CARD_REMOVAL event + * also sets some flags to discourage the driver from trying + * to talk to the card any more. + */ + +static int pcmciamtd_event(event_t event, int priority, + event_callback_args_t *args) +{ + dev_link_t *link = args->client_data; + + DEBUG(1, "event=0x%06x", event); + switch (event) { + case CS_EVENT_CARD_REMOVAL: + DEBUG(2, "EVENT_CARD_REMOVAL"); + link->state &= ~DEV_PRESENT; + if (link->state & DEV_CONFIG) { + struct pcmciamtd_dev *dev = link->priv; + if(dev->mtd_info) { + del_mtd_device(dev->mtd_info); + info("mtd%d: Removed", dev->mtd_info->index); + } + pcmciamtd_release(link); + } + break; + case CS_EVENT_CARD_INSERTION: + DEBUG(2, "EVENT_CARD_INSERTION"); + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + pcmciamtd_config(link); + break; + case CS_EVENT_PM_SUSPEND: + DEBUG(2, "EVENT_PM_SUSPEND"); + link->state |= DEV_SUSPEND; + /* Fall through... */ + case CS_EVENT_RESET_PHYSICAL: + DEBUG(2, "EVENT_RESET_PHYSICAL"); + /* get_lock(link); */ + break; + case CS_EVENT_PM_RESUME: + DEBUG(2, "EVENT_PM_RESUME"); + link->state &= ~DEV_SUSPEND; + /* Fall through... */ + case CS_EVENT_CARD_RESET: + DEBUG(2, "EVENT_CARD_RESET"); + /* free_lock(link); */ + break; + default: + DEBUG(2, "Unknown event %d", event); + } + return 0; +} + + +/* This deletes a driver "instance". The device is de-registered + * with Card Services. If it has been released, all local data + * structures are freed. Otherwise, the structures will be freed + * when the device is released. + */ + +static void pcmciamtd_detach(dev_link_t *link) +{ + DEBUG(3, "link=0x%p", link); + + if(link->state & DEV_CONFIG) { + pcmciamtd_release(link); + } + + if (link->handle) { + int ret; + DEBUG(2, "Deregistering with card services"); + ret = pcmcia_deregister_client(link->handle); + if (ret != CS_SUCCESS) + cs_error(link->handle, DeregisterClient, ret); + } + + link->state |= DEV_STALE_LINK; +} + + +/* pcmciamtd_attach() creates an "instance" of the driver, allocating + * local data structures for one device. The device is registered + * with Card Services. + */ + +static dev_link_t *pcmciamtd_attach(void) +{ + struct pcmciamtd_dev *dev; + dev_link_t *link; + client_reg_t client_reg; + int ret; + + /* Create new memory card device */ + dev = kmalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) return NULL; + DEBUG(1, "dev=0x%p", dev); + + memset(dev, 0, sizeof(*dev)); + link = &dev->link; + link->priv = dev; + + link->conf.Attributes = 0; + link->conf.IntType = INT_MEMORY; + + link->next = dev_list; + dev_list = link; + + /* Register with Card Services */ + client_reg.dev_info = &dev_info; + client_reg.EventMask = + CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | + CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | + CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; + client_reg.event_handler = &pcmciamtd_event; + client_reg.Version = 0x0210; + client_reg.event_callback_args.client_data = link; + DEBUG(2, "Calling RegisterClient"); + ret = pcmcia_register_client(&link->handle, &client_reg); + if (ret != 0) { + cs_error(link->handle, RegisterClient, ret); + pcmciamtd_detach(link); + return NULL; + } + DEBUG(2, "link = %p", link); + return link; +} + + +static struct pcmcia_driver pcmciamtd_driver = { + .drv = { + .name = "pcmciamtd" + }, + .attach = pcmciamtd_attach, + .detach = pcmciamtd_detach, + .owner = THIS_MODULE +}; + + +static int __init init_pcmciamtd(void) +{ + info(DRIVER_DESC " " DRIVER_VERSION); + + if(bankwidth && bankwidth != 1 && bankwidth != 2) { + info("bad bankwidth (%d), using default", bankwidth); + bankwidth = 2; + } + if(force_size && (force_size < 1 || force_size > 64)) { + info("bad force_size (%d), using default", force_size); + force_size = 0; + } + if(mem_type && mem_type != 1 && mem_type != 2) { + info("bad mem_type (%d), using default", mem_type); + mem_type = 0; + } + return pcmcia_register_driver(&pcmciamtd_driver); +} + + +static void __exit exit_pcmciamtd(void) +{ + DEBUG(1, DRIVER_DESC " unloading"); + pcmcia_unregister_driver(&pcmciamtd_driver); + BUG_ON(dev_list != NULL); +} + +module_init(init_pcmciamtd); +module_exit(exit_pcmciamtd); diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c new file mode 100644 index 00000000000..b853670bfb8 --- /dev/null +++ b/drivers/mtd/maps/physmap.c @@ -0,0 +1,125 @@ +/* + * $Id: physmap.c,v 1.37 2004/11/28 09:40:40 dwmw2 Exp $ + * + * Normal mappings of chips in physical memory + * + * Copyright (C) 2003 MontaVista Software Inc. + * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net + * + * 031022 - [jsun] add run-time configure and partition setup + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/config.h> +#include <linux/mtd/partitions.h> + +static struct mtd_info *mymtd; + +struct map_info physmap_map = { + .name = "phys_mapped_flash", + .phys = CONFIG_MTD_PHYSMAP_START, + .size = CONFIG_MTD_PHYSMAP_LEN, + .bankwidth = CONFIG_MTD_PHYSMAP_BANKWIDTH, +}; + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition *mtd_parts; +static int mtd_parts_nb; + +static int num_physmap_partitions; +static struct mtd_partition *physmap_partitions; + +static const char *part_probes[] __initdata = {"cmdlinepart", "RedBoot", NULL}; + +void physmap_set_partitions(struct mtd_partition *parts, int num_parts) +{ + physmap_partitions=parts; + num_physmap_partitions=num_parts; +} +#endif /* CONFIG_MTD_PARTITIONS */ + +static int __init init_physmap(void) +{ + static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", NULL }; + const char **type; + + printk(KERN_NOTICE "physmap flash device: %lx at %lx\n", physmap_map.size, physmap_map.phys); + physmap_map.virt = ioremap(physmap_map.phys, physmap_map.size); + + if (!physmap_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + + simple_map_init(&physmap_map); + + mymtd = NULL; + type = rom_probe_types; + for(; !mymtd && *type; type++) { + mymtd = do_map_probe(*type, &physmap_map); + } + if (mymtd) { + mymtd->owner = THIS_MODULE; + +#ifdef CONFIG_MTD_PARTITIONS + mtd_parts_nb = parse_mtd_partitions(mymtd, part_probes, + &mtd_parts, 0); + + if (mtd_parts_nb > 0) + { + add_mtd_partitions (mymtd, mtd_parts, mtd_parts_nb); + return 0; + } + + if (num_physmap_partitions != 0) + { + printk(KERN_NOTICE + "Using physmap partition definition\n"); + add_mtd_partitions (mymtd, physmap_partitions, num_physmap_partitions); + return 0; + } + +#endif + add_mtd_device(mymtd); + + return 0; + } + + iounmap(physmap_map.virt); + return -ENXIO; +} + +static void __exit cleanup_physmap(void) +{ +#ifdef CONFIG_MTD_PARTITIONS + if (mtd_parts_nb) { + del_mtd_partitions(mymtd); + kfree(mtd_parts); + } else if (num_physmap_partitions) { + del_mtd_partitions(mymtd); + } else { + del_mtd_device(mymtd); + } +#else + del_mtd_device(mymtd); +#endif + map_destroy(mymtd); + + iounmap(physmap_map.virt); + physmap_map.virt = NULL; +} + +module_init(init_physmap); +module_exit(cleanup_physmap); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); +MODULE_DESCRIPTION("Generic configurable MTD map driver"); diff --git a/drivers/mtd/maps/pnc2000.c b/drivers/mtd/maps/pnc2000.c new file mode 100644 index 00000000000..a0f43dad898 --- /dev/null +++ b/drivers/mtd/maps/pnc2000.c @@ -0,0 +1,93 @@ +/* + * pnc2000.c - mapper for Photron PNC-2000 board. + * + * Copyright (C) 2000 Crossnet Co. <info@crossnet.co.jp> + * + * This code is GPL + * + * $Id: pnc2000.c,v 1.17 2004/11/16 18:29:02 dwmw2 Exp $ + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + + +#define WINDOW_ADDR 0xbf000000 +#define WINDOW_SIZE 0x00400000 + +/* + * MAP DRIVER STUFF + */ + + +static struct map_info pnc_map = { + .name = "PNC-2000", + .size = WINDOW_SIZE, + .bankwidth = 4, + .phys = 0xFFFFFFFF, + .virt = (void __iomem *)WINDOW_ADDR, +}; + + +/* + * MTD 'PARTITIONING' STUFF + */ +static struct mtd_partition pnc_partitions[3] = { + { + .name = "PNC-2000 boot firmware", + .size = 0x20000, + .offset = 0 + }, + { + .name = "PNC-2000 kernel", + .size = 0x1a0000, + .offset = 0x20000 + }, + { + .name = "PNC-2000 filesystem", + .size = 0x240000, + .offset = 0x1c0000 + } +}; + +/* + * This is the master MTD device for which all the others are just + * auto-relocating aliases. + */ +static struct mtd_info *mymtd; + +static int __init init_pnc2000(void) +{ + printk(KERN_NOTICE "Photron PNC-2000 flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR); + + simple_map_init(&pnc_map); + + mymtd = do_map_probe("cfi_probe", &pnc_map); + if (mymtd) { + mymtd->owner = THIS_MODULE; + return add_mtd_partitions(mymtd, pnc_partitions, 3); + } + + return -ENXIO; +} + +static void __exit cleanup_pnc2000(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } +} + +module_init(init_pnc2000); +module_exit(cleanup_pnc2000); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Crossnet Co. <info@crossnet.co.jp>"); +MODULE_DESCRIPTION("MTD map driver for Photron PNC-2000 board"); diff --git a/drivers/mtd/maps/redwood.c b/drivers/mtd/maps/redwood.c new file mode 100644 index 00000000000..edd01ee4f90 --- /dev/null +++ b/drivers/mtd/maps/redwood.c @@ -0,0 +1,169 @@ +/* + * $Id: redwood.c,v 1.10 2004/11/04 13:24:15 gleixner Exp $ + * + * drivers/mtd/maps/redwood.c + * + * FLASH map for the IBM Redwood 4/5/6 boards. + * + * Author: MontaVista Software, Inc. <source@mvista.com> + * + * 2001-2003 (c) MontaVista, Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/io.h> + +#if !defined (CONFIG_REDWOOD_6) + +#define WINDOW_ADDR 0xffc00000 +#define WINDOW_SIZE 0x00400000 + +#define RW_PART0_OF 0 +#define RW_PART0_SZ 0x10000 +#define RW_PART1_OF RW_PART0_SZ +#define RW_PART1_SZ 0x200000 - 0x10000 +#define RW_PART2_OF 0x200000 +#define RW_PART2_SZ 0x10000 +#define RW_PART3_OF 0x210000 +#define RW_PART3_SZ 0x200000 - (0x10000 + 0x20000) +#define RW_PART4_OF 0x3e0000 +#define RW_PART4_SZ 0x20000 + +static struct mtd_partition redwood_flash_partitions[] = { + { + .name = "Redwood OpenBIOS Vital Product Data", + .offset = RW_PART0_OF, + .size = RW_PART0_SZ, + .mask_flags = MTD_WRITEABLE /* force read-only */ + }, + { + .name = "Redwood kernel", + .offset = RW_PART1_OF, + .size = RW_PART1_SZ + }, + { + .name = "Redwood OpenBIOS non-volatile storage", + .offset = RW_PART2_OF, + .size = RW_PART2_SZ, + .mask_flags = MTD_WRITEABLE /* force read-only */ + }, + { + .name = "Redwood filesystem", + .offset = RW_PART3_OF, + .size = RW_PART3_SZ + }, + { + .name = "Redwood OpenBIOS", + .offset = RW_PART4_OF, + .size = RW_PART4_SZ, + .mask_flags = MTD_WRITEABLE /* force read-only */ + } +}; + +#else /* CONFIG_REDWOOD_6 */ +/* FIXME: the window is bigger - armin */ +#define WINDOW_ADDR 0xff800000 +#define WINDOW_SIZE 0x00800000 + +#define RW_PART0_OF 0 +#define RW_PART0_SZ 0x400000 /* 4 MiB data */ +#define RW_PART1_OF RW_PART0_OF + RW_PART0_SZ +#define RW_PART1_SZ 0x10000 /* 64K VPD */ +#define RW_PART2_OF RW_PART1_OF + RW_PART1_SZ +#define RW_PART2_SZ 0x400000 - (0x10000 + 0x20000) +#define RW_PART3_OF RW_PART2_OF + RW_PART2_SZ +#define RW_PART3_SZ 0x20000 + +static struct mtd_partition redwood_flash_partitions[] = { + { + .name = "Redwood filesystem", + .offset = RW_PART0_OF, + .size = RW_PART0_SZ + }, + { + .name = "Redwood OpenBIOS Vital Product Data", + .offset = RW_PART1_OF, + .size = RW_PART1_SZ, + .mask_flags = MTD_WRITEABLE /* force read-only */ + }, + { + .name = "Redwood kernel", + .offset = RW_PART2_OF, + .size = RW_PART2_SZ + }, + { + .name = "Redwood OpenBIOS", + .offset = RW_PART3_OF, + .size = RW_PART3_SZ, + .mask_flags = MTD_WRITEABLE /* force read-only */ + } +}; + +#endif /* CONFIG_REDWOOD_6 */ + +struct map_info redwood_flash_map = { + .name = "IBM Redwood", + .size = WINDOW_SIZE, + .bankwidth = 2, + .phys = WINDOW_ADDR, +}; + + +#define NUM_REDWOOD_FLASH_PARTITIONS \ + (sizeof(redwood_flash_partitions)/sizeof(redwood_flash_partitions[0])) + +static struct mtd_info *redwood_mtd; + +int __init init_redwood_flash(void) +{ + printk(KERN_NOTICE "redwood: flash mapping: %x at %x\n", + WINDOW_SIZE, WINDOW_ADDR); + + redwood_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); + + if (!redwood_flash_map.virt) { + printk("init_redwood_flash: failed to ioremap\n"); + return -EIO; + } + simple_map_init(&redwood_flash_map); + + redwood_mtd = do_map_probe("cfi_probe",&redwood_flash_map); + + if (redwood_mtd) { + redwood_mtd->owner = THIS_MODULE; + return add_mtd_partitions(redwood_mtd, + redwood_flash_partitions, + NUM_REDWOOD_FLASH_PARTITIONS); + } + + return -ENXIO; +} + +static void __exit cleanup_redwood_flash(void) +{ + if (redwood_mtd) { + del_mtd_partitions(redwood_mtd); + /* moved iounmap after map_destroy - armin */ + map_destroy(redwood_mtd); + iounmap((void *)redwood_flash_map.virt); + } +} + +module_init(init_redwood_flash); +module_exit(cleanup_redwood_flash); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("MontaVista Software <source@mvista.com>"); +MODULE_DESCRIPTION("MTD map driver for the IBM Redwood reference boards"); diff --git a/drivers/mtd/maps/rpxlite.c b/drivers/mtd/maps/rpxlite.c new file mode 100644 index 00000000000..809a0c8e7aa --- /dev/null +++ b/drivers/mtd/maps/rpxlite.c @@ -0,0 +1,66 @@ +/* + * $Id: rpxlite.c,v 1.22 2004/11/04 13:24:15 gleixner Exp $ + * + * Handle mapping of the flash on the RPX Lite and CLLF boards + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> + + +#define WINDOW_ADDR 0xfe000000 +#define WINDOW_SIZE 0x800000 + +static struct mtd_info *mymtd; + +static struct map_info rpxlite_map = { + .name = "RPX", + .size = WINDOW_SIZE, + .bankwidth = 4, + .phys = WINDOW_ADDR, +}; + +int __init init_rpxlite(void) +{ + printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR); + rpxlite_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4); + + if (!rpxlite_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + simple_map_init(&rpxlite_map); + mymtd = do_map_probe("cfi_probe", &rpxlite_map); + if (mymtd) { + mymtd->owner = THIS_MODULE; + add_mtd_device(mymtd); + return 0; + } + + iounmap((void *)rpxlite_map.virt); + return -ENXIO; +} + +static void __exit cleanup_rpxlite(void) +{ + if (mymtd) { + del_mtd_device(mymtd); + map_destroy(mymtd); + } + if (rpxlite_map.virt) { + iounmap((void *)rpxlite_map.virt); + rpxlite_map.virt = 0; + } +} + +module_init(init_rpxlite); +module_exit(cleanup_rpxlite); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Arnold Christensen <AKC@pel.dk>"); +MODULE_DESCRIPTION("MTD map driver for RPX Lite and CLLF boards"); diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c new file mode 100644 index 00000000000..0a6f861c4cd --- /dev/null +++ b/drivers/mtd/maps/sa1100-flash.c @@ -0,0 +1,453 @@ +/* + * Flash memory access on SA11x0 based devices + * + * (C) 2000 Nicolas Pitre <nico@cam.org> + * + * $Id: sa1100-flash.c,v 1.47 2004/11/01 13:44:36 rmk Exp $ + */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/ioport.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/device.h> +#include <linux/err.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/concat.h> + +#include <asm/mach-types.h> +#include <asm/io.h> +#include <asm/sizes.h> +#include <asm/mach/flash.h> + +#if 0 +/* + * This is here for documentation purposes only - until these people + * submit their machine types. It will be gone January 2005. + */ +static struct mtd_partition consus_partitions[] = { + { + .name = "Consus boot firmware", + .offset = 0, + .size = 0x00040000, + .mask_flags = MTD_WRITABLE, /* force read-only */ + }, { + .name = "Consus kernel", + .offset = 0x00040000, + .size = 0x00100000, + .mask_flags = 0, + }, { + .name = "Consus disk", + .offset = 0x00140000, + /* The rest (up to 16M) for jffs. We could put 0 and + make it find the size automatically, but right now + i have 32 megs. jffs will use all 32 megs if given + the chance, and this leads to horrible problems + when you try to re-flash the image because blob + won't erase the whole partition. */ + .size = 0x01000000 - 0x00140000, + .mask_flags = 0, + }, { + /* this disk is a secondary disk, which can be used as + needed, for simplicity, make it the size of the other + consus partition, although realistically it could be + the remainder of the disk (depending on the file + system used) */ + .name = "Consus disk2", + .offset = 0x01000000, + .size = 0x01000000 - 0x00140000, + .mask_flags = 0, + } +}; + +/* Frodo has 2 x 16M 28F128J3A flash chips in bank 0: */ +static struct mtd_partition frodo_partitions[] = +{ + { + .name = "bootloader", + .size = 0x00040000, + .offset = 0x00000000, + .mask_flags = MTD_WRITEABLE + }, { + .name = "bootloader params", + .size = 0x00040000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + }, { + .name = "kernel", + .size = 0x00100000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + }, { + .name = "ramdisk", + .size = 0x00400000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE + }, { + .name = "file system", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND + } +}; + +static struct mtd_partition jornada56x_partitions[] = { + { + .name = "bootldr", + .size = 0x00040000, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "rootfs", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static void jornada56x_set_vpp(int vpp) +{ + if (vpp) + GPSR = GPIO_GPIO26; + else + GPCR = GPIO_GPIO26; + GPDR |= GPIO_GPIO26; +} + +/* + * Machine Phys Size set_vpp + * Consus : SA1100_CS0_PHYS SZ_32M + * Frodo : SA1100_CS0_PHYS SZ_32M + * Jornada56x: SA1100_CS0_PHYS SZ_32M jornada56x_set_vpp + */ +#endif + +struct sa_subdev_info { + char name[16]; + struct map_info map; + struct mtd_info *mtd; + struct flash_platform_data *data; +}; + +struct sa_info { + struct mtd_partition *parts; + struct mtd_info *mtd; + int num_subdev; + struct sa_subdev_info subdev[0]; +}; + +static void sa1100_set_vpp(struct map_info *map, int on) +{ + struct sa_subdev_info *subdev = container_of(map, struct sa_subdev_info, map); + subdev->data->set_vpp(on); +} + +static void sa1100_destroy_subdev(struct sa_subdev_info *subdev) +{ + if (subdev->mtd) + map_destroy(subdev->mtd); + if (subdev->map.virt) + iounmap(subdev->map.virt); + release_mem_region(subdev->map.phys, subdev->map.size); +} + +static int sa1100_probe_subdev(struct sa_subdev_info *subdev, struct resource *res) +{ + unsigned long phys; + unsigned int size; + int ret; + + phys = res->start; + size = res->end - phys + 1; + + /* + * Retrieve the bankwidth from the MSC registers. + * We currently only implement CS0 and CS1 here. + */ + switch (phys) { + default: + printk(KERN_WARNING "SA1100 flash: unknown base address " + "0x%08lx, assuming CS0\n", phys); + + case SA1100_CS0_PHYS: + subdev->map.bankwidth = (MSC0 & MSC_RBW) ? 2 : 4; + break; + + case SA1100_CS1_PHYS: + subdev->map.bankwidth = ((MSC0 >> 16) & MSC_RBW) ? 2 : 4; + break; + } + + if (!request_mem_region(phys, size, subdev->name)) { + ret = -EBUSY; + goto out; + } + + if (subdev->data->set_vpp) + subdev->map.set_vpp = sa1100_set_vpp; + + subdev->map.phys = phys; + subdev->map.size = size; + subdev->map.virt = ioremap(phys, size); + if (!subdev->map.virt) { + ret = -ENOMEM; + goto err; + } + + simple_map_init(&subdev->map); + + /* + * Now let's probe for the actual flash. Do it here since + * specific machine settings might have been set above. + */ + subdev->mtd = do_map_probe(subdev->data->map_name, &subdev->map); + if (subdev->mtd == NULL) { + ret = -ENXIO; + goto err; + } + subdev->mtd->owner = THIS_MODULE; + + printk(KERN_INFO "SA1100 flash: CFI device at 0x%08lx, %dMiB, " + "%d-bit\n", phys, subdev->mtd->size >> 20, + subdev->map.bankwidth * 8); + + return 0; + + err: + sa1100_destroy_subdev(subdev); + out: + return ret; +} + +static void sa1100_destroy(struct sa_info *info) +{ + int i; + + if (info->mtd) { + del_mtd_partitions(info->mtd); + +#ifdef CONFIG_MTD_CONCAT + if (info->mtd != info->subdev[0].mtd) + mtd_concat_destroy(info->mtd); +#endif + } + + if (info->parts) + kfree(info->parts); + + for (i = info->num_subdev - 1; i >= 0; i--) + sa1100_destroy_subdev(&info->subdev[i]); + kfree(info); +} + +static struct sa_info *__init +sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash) +{ + struct sa_info *info; + int nr, size, i, ret = 0; + + /* + * Count number of devices. + */ + for (nr = 0; ; nr++) + if (!platform_get_resource(pdev, IORESOURCE_MEM, nr)) + break; + + if (nr == 0) { + ret = -ENODEV; + goto out; + } + + size = sizeof(struct sa_info) + sizeof(struct sa_subdev_info) * nr; + + /* + * Allocate the map_info structs in one go. + */ + info = kmalloc(size, GFP_KERNEL); + if (!info) { + ret = -ENOMEM; + goto out; + } + + memset(info, 0, size); + + /* + * Claim and then map the memory regions. + */ + for (i = 0; i < nr; i++) { + struct sa_subdev_info *subdev = &info->subdev[i]; + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, i); + if (!res) + break; + + subdev->map.name = subdev->name; + sprintf(subdev->name, "sa1100-%d", i); + subdev->data = flash; + + ret = sa1100_probe_subdev(subdev, res); + if (ret) + break; + } + + info->num_subdev = i; + + /* + * ENXIO is special. It means we didn't find a chip when we probed. + */ + if (ret != 0 && !(ret == -ENXIO && info->num_subdev > 0)) + goto err; + + /* + * If we found one device, don't bother with concat support. If + * we found multiple devices, use concat if we have it available, + * otherwise fail. Either way, it'll be called "sa1100". + */ + if (info->num_subdev == 1) { + strcpy(info->subdev[0].name, "sa1100"); + info->mtd = info->subdev[0].mtd; + ret = 0; + } else if (info->num_subdev > 1) { +#ifdef CONFIG_MTD_CONCAT + struct mtd_info *cdev[nr]; + /* + * We detected multiple devices. Concatenate them together. + */ + for (i = 0; i < info->num_subdev; i++) + cdev[i] = info->subdev[i].mtd; + + info->mtd = mtd_concat_create(cdev, info->num_subdev, + "sa1100"); + if (info->mtd == NULL) + ret = -ENXIO; +#else + printk(KERN_ERR "SA1100 flash: multiple devices " + "found but MTD concat support disabled.\n"); + ret = -ENXIO; +#endif + } + + if (ret == 0) + return info; + + err: + sa1100_destroy(info); + out: + return ERR_PTR(ret); +} + +static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; + +static int __init sa1100_mtd_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct flash_platform_data *flash = pdev->dev.platform_data; + struct mtd_partition *parts; + const char *part_type = NULL; + struct sa_info *info; + int err, nr_parts = 0; + + if (!flash) + return -ENODEV; + + info = sa1100_setup_mtd(pdev, flash); + if (IS_ERR(info)) { + err = PTR_ERR(info); + goto out; + } + + /* + * Partition selection stuff. + */ +#ifdef CONFIG_MTD_PARTITIONS + nr_parts = parse_mtd_partitions(info->mtd, part_probes, &parts, 0); + if (nr_parts > 0) { + info->parts = parts; + part_type = "dynamic"; + } else +#endif + { + parts = flash->parts; + nr_parts = flash->nr_parts; + part_type = "static"; + } + + if (nr_parts == 0) { + printk(KERN_NOTICE "SA1100 flash: no partition info " + "available, registering whole flash\n"); + add_mtd_device(info->mtd); + } else { + printk(KERN_NOTICE "SA1100 flash: using %s partition " + "definition\n", part_type); + add_mtd_partitions(info->mtd, parts, nr_parts); + } + + dev_set_drvdata(dev, info); + err = 0; + + out: + return err; +} + +static int __exit sa1100_mtd_remove(struct device *dev) +{ + struct sa_info *info = dev_get_drvdata(dev); + dev_set_drvdata(dev, NULL); + sa1100_destroy(info); + return 0; +} + +#ifdef CONFIG_PM +static int sa1100_mtd_suspend(struct device *dev, u32 state, u32 level) +{ + struct sa_info *info = dev_get_drvdata(dev); + int ret = 0; + + if (info && level == SUSPEND_SAVE_STATE) + ret = info->mtd->suspend(info->mtd); + + return ret; +} + +static int sa1100_mtd_resume(struct device *dev, u32 level) +{ + struct sa_info *info = dev_get_drvdata(dev); + if (info && level == RESUME_RESTORE_STATE) + info->mtd->resume(info->mtd); + return 0; +} +#else +#define sa1100_mtd_suspend NULL +#define sa1100_mtd_resume NULL +#endif + +static struct device_driver sa1100_mtd_driver = { + .name = "flash", + .bus = &platform_bus_type, + .probe = sa1100_mtd_probe, + .remove = __exit_p(sa1100_mtd_remove), + .suspend = sa1100_mtd_suspend, + .resume = sa1100_mtd_resume, +}; + +static int __init sa1100_mtd_init(void) +{ + return driver_register(&sa1100_mtd_driver); +} + +static void __exit sa1100_mtd_exit(void) +{ + driver_unregister(&sa1100_mtd_driver); +} + +module_init(sa1100_mtd_init); +module_exit(sa1100_mtd_exit); + +MODULE_AUTHOR("Nicolas Pitre"); +MODULE_DESCRIPTION("SA1100 CFI map driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c new file mode 100644 index 00000000000..da684d3384e --- /dev/null +++ b/drivers/mtd/maps/sbc8240.c @@ -0,0 +1,247 @@ +/* + * Handle mapping of the flash memory access routines on the SBC8240 board. + * + * Carolyn Smith, Tektronix, Inc. + * + * This code is GPLed + * + * $Id: sbc8240.c,v 1.4 2004/07/12 22:38:29 dwmw2 Exp $ + * + */ + +/* + * The SBC8240 has 2 flash banks. + * Bank 0 is a 512 KiB AMD AM29F040B; 8 x 64 KiB sectors. + * It contains the U-Boot code (7 sectors) and the environment (1 sector). + * Bank 1 is 4 x 1 MiB AMD AM29LV800BT; 15 x 64 KiB sectors, 1 x 32 KiB sector, + * 2 x 8 KiB sectors, 1 x 16 KiB sectors. + * Both parts are JEDEC compatible. + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/io.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/cfi.h> + +#ifdef CONFIG_MTD_PARTITIONS +#include <linux/mtd/partitions.h> +#endif + +#define DEBUG + +#ifdef DEBUG +# define debugk(fmt,args...) printk(fmt ,##args) +#else +# define debugk(fmt,args...) +#endif + + +#define WINDOW_ADDR0 0xFFF00000 /* 512 KiB */ +#define WINDOW_SIZE0 0x00080000 +#define BUSWIDTH0 1 + +#define WINDOW_ADDR1 0xFF000000 /* 4 MiB */ +#define WINDOW_SIZE1 0x00400000 +#define BUSWIDTH1 8 + +#define MSG_PREFIX "sbc8240:" /* prefix for our printk()'s */ +#define MTDID "sbc8240-%d" /* for mtdparts= partitioning */ + + +static struct map_info sbc8240_map[2] = { + { + .name = "sbc8240 Flash Bank #0", + .size = WINDOW_SIZE0, + .bankwidth = BUSWIDTH0, + }, + { + .name = "sbc8240 Flash Bank #1", + .size = WINDOW_SIZE1, + .bankwidth = BUSWIDTH1, + } +}; + +#define NUM_FLASH_BANKS (sizeof(sbc8240_map) / sizeof(struct map_info)) + +/* + * The following defines the partition layout of SBC8240 boards. + * + * See include/linux/mtd/partitions.h for definition of the + * mtd_partition structure. + * + * The *_max_flash_size is the maximum possible mapped flash size + * which is not necessarily the actual flash size. It must correspond + * to the value specified in the mapping definition defined by the + * "struct map_desc *_io_desc" for the corresponding machine. + */ + +#ifdef CONFIG_MTD_PARTITIONS + +static struct mtd_partition sbc8240_uboot_partitions [] = { + /* Bank 0 */ + { + .name = "U-boot", /* U-Boot Firmware */ + .offset = 0, + .size = 0x00070000, /* 7 x 64 KiB sectors */ + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "environment", /* U-Boot environment */ + .offset = 0x00070000, + .size = 0x00010000, /* 1 x 64 KiB sector */ + }, +}; + +static struct mtd_partition sbc8240_fs_partitions [] = { + { + .name = "jffs", /* JFFS filesystem */ + .offset = 0, + .size = 0x003C0000, /* 4 * 15 * 64KiB */ + }, + { + .name = "tmp32", + .offset = 0x003C0000, + .size = 0x00020000, /* 4 * 32KiB */ + }, + { + .name = "tmp8a", + .offset = 0x003E0000, + .size = 0x00008000, /* 4 * 8KiB */ + }, + { + .name = "tmp8b", + .offset = 0x003E8000, + .size = 0x00008000, /* 4 * 8KiB */ + }, + { + .name = "tmp16", + .offset = 0x003F0000, + .size = 0x00010000, /* 4 * 16KiB */ + } +}; + +#define NB_OF(x) (sizeof (x) / sizeof (x[0])) + +/* trivial struct to describe partition information */ +struct mtd_part_def +{ + int nums; + unsigned char *type; + struct mtd_partition* mtd_part; +}; + +static struct mtd_info *sbc8240_mtd[NUM_FLASH_BANKS]; +static struct mtd_part_def sbc8240_part_banks[NUM_FLASH_BANKS]; + + +#endif /* CONFIG_MTD_PARTITIONS */ + + +int __init init_sbc8240_mtd (void) +{ + static struct _cjs { + u_long addr; + u_long size; + } pt[NUM_FLASH_BANKS] = { + { + .addr = WINDOW_ADDR0, + .size = WINDOW_SIZE0 + }, + { + .addr = WINDOW_ADDR1, + .size = WINDOW_SIZE1 + }, + }; + + int devicesfound = 0; + int i; + + for (i = 0; i < NUM_FLASH_BANKS; i++) { + printk (KERN_NOTICE MSG_PREFIX + "Probing 0x%08lx at 0x%08lx\n", pt[i].size, pt[i].addr); + + sbc8240_map[i].map_priv_1 = + (unsigned long) ioremap (pt[i].addr, pt[i].size); + if (!sbc8240_map[i].map_priv_1) { + printk (MSG_PREFIX "failed to ioremap\n"); + return -EIO; + } + simple_map_init(&sbc8240_mtd[i]); + + sbc8240_mtd[i] = do_map_probe("jedec_probe", &sbc8240_map[i]); + + if (sbc8240_mtd[i]) { + sbc8240_mtd[i]->module = THIS_MODULE; + devicesfound++; + } + } + + if (!devicesfound) { + printk(KERN_NOTICE MSG_PREFIX + "No suppported flash chips found!\n"); + return -ENXIO; + } + +#ifdef CONFIG_MTD_PARTITIONS + sbc8240_part_banks[0].mtd_part = sbc8240_uboot_partitions; + sbc8240_part_banks[0].type = "static image"; + sbc8240_part_banks[0].nums = NB_OF(sbc8240_uboot_partitions); + sbc8240_part_banks[1].mtd_part = sbc8240_fs_partitions; + sbc8240_part_banks[1].type = "static file system"; + sbc8240_part_banks[1].nums = NB_OF(sbc8240_fs_partitions); + + for (i = 0; i < NUM_FLASH_BANKS; i++) { + + if (!sbc8240_mtd[i]) continue; + if (sbc8240_part_banks[i].nums == 0) { + printk (KERN_NOTICE MSG_PREFIX + "No partition info available, registering whole device\n"); + add_mtd_device(sbc8240_mtd[i]); + } else { + printk (KERN_NOTICE MSG_PREFIX + "Using %s partition definition\n", sbc8240_part_banks[i].mtd_part->name); + add_mtd_partitions (sbc8240_mtd[i], + sbc8240_part_banks[i].mtd_part, + sbc8240_part_banks[i].nums); + } + } +#else + printk(KERN_NOTICE MSG_PREFIX + "Registering %d flash banks at once\n", devicesfound); + + for (i = 0; i < devicesfound; i++) { + add_mtd_device(sbc8240_mtd[i]); + } +#endif /* CONFIG_MTD_PARTITIONS */ + + return devicesfound == 0 ? -ENXIO : 0; +} + +static void __exit cleanup_sbc8240_mtd (void) +{ + int i; + + for (i = 0; i < NUM_FLASH_BANKS; i++) { + if (sbc8240_mtd[i]) { + del_mtd_device (sbc8240_mtd[i]); + map_destroy (sbc8240_mtd[i]); + } + if (sbc8240_map[i].map_priv_1) { + iounmap ((void *) sbc8240_map[i].map_priv_1); + sbc8240_map[i].map_priv_1 = 0; + } + } +} + +module_init (init_sbc8240_mtd); +module_exit (cleanup_sbc8240_mtd); + +MODULE_LICENSE ("GPL"); +MODULE_AUTHOR ("Carolyn Smith <carolyn.smith@tektronix.com>"); +MODULE_DESCRIPTION ("MTD map driver for SBC8240 boards"); + diff --git a/drivers/mtd/maps/sbc_gxx.c b/drivers/mtd/maps/sbc_gxx.c new file mode 100644 index 00000000000..65add28bde1 --- /dev/null +++ b/drivers/mtd/maps/sbc_gxx.c @@ -0,0 +1,239 @@ +/* sbc_gxx.c -- MTD map driver for Arcom Control Systems SBC-MediaGX, + SBC-GXm and SBC-GX1 series boards. + + Copyright (C) 2001 Arcom Control System Ltd + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + + $Id: sbc_gxx.c,v 1.33 2004/11/28 09:40:40 dwmw2 Exp $ + +The SBC-MediaGX / SBC-GXx has up to 16 MiB of +Intel StrataFlash (28F320/28F640) in x8 mode. + +This driver uses the CFI probe and Intel Extended Command Set drivers. + +The flash is accessed as follows: + + 16 KiB memory window at 0xdc000-0xdffff + + Two IO address locations for paging + + 0x258 + bit 0-7: address bit 14-21 + 0x259 + bit 0-1: address bit 22-23 + bit 7: 0 - reset/powered down + 1 - device enabled + +The single flash device is divided into 3 partition which appear as +separate MTD devices. + +25/04/2001 AJL (Arcom) Modified signon strings and partition sizes + (to support bzImages up to 638KiB-ish) +*/ + +// Includes + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <asm/io.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +// Defines + +// - Hardware specific + +#define WINDOW_START 0xdc000 + +/* Number of bits in offset. */ +#define WINDOW_SHIFT 14 +#define WINDOW_LENGTH (1 << WINDOW_SHIFT) + +/* The bits for the offset into the window. */ +#define WINDOW_MASK (WINDOW_LENGTH-1) +#define PAGE_IO 0x258 +#define PAGE_IO_SIZE 2 + +/* bit 7 of 0x259 must be 1 to enable device. */ +#define DEVICE_ENABLE 0x8000 + +// - Flash / Partition sizing + +#define MAX_SIZE_KiB 16384 +#define BOOT_PARTITION_SIZE_KiB 768 +#define DATA_PARTITION_SIZE_KiB 1280 +#define APP_PARTITION_SIZE_KiB 6144 + +// Globals + +static volatile int page_in_window = -1; // Current page in window. +static void __iomem *iomapadr; +static DEFINE_SPINLOCK(sbc_gxx_spin); + +/* partition_info gives details on the logical partitions that the split the + * single flash device into. If the size if zero we use up to the end of the + * device. */ +static struct mtd_partition partition_info[]={ + { .name = "SBC-GXx flash boot partition", + .offset = 0, + .size = BOOT_PARTITION_SIZE_KiB*1024 }, + { .name = "SBC-GXx flash data partition", + .offset = BOOT_PARTITION_SIZE_KiB*1024, + .size = (DATA_PARTITION_SIZE_KiB)*1024 }, + { .name = "SBC-GXx flash application partition", + .offset = (BOOT_PARTITION_SIZE_KiB+DATA_PARTITION_SIZE_KiB)*1024 } +}; + +#define NUM_PARTITIONS 3 + +static inline void sbc_gxx_page(struct map_info *map, unsigned long ofs) +{ + unsigned long page = ofs >> WINDOW_SHIFT; + + if( page!=page_in_window ) { + outw( page | DEVICE_ENABLE, PAGE_IO ); + page_in_window = page; + } +} + + +static map_word sbc_gxx_read8(struct map_info *map, unsigned long ofs) +{ + map_word ret; + spin_lock(&sbc_gxx_spin); + sbc_gxx_page(map, ofs); + ret.x[0] = readb(iomapadr + (ofs & WINDOW_MASK)); + spin_unlock(&sbc_gxx_spin); + return ret; +} + +static void sbc_gxx_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (from & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(from & WINDOW_MASK); + + spin_lock(&sbc_gxx_spin); + sbc_gxx_page(map, from); + memcpy_fromio(to, iomapadr + (from & WINDOW_MASK), thislen); + spin_unlock(&sbc_gxx_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static void sbc_gxx_write8(struct map_info *map, map_word d, unsigned long adr) +{ + spin_lock(&sbc_gxx_spin); + sbc_gxx_page(map, adr); + writeb(d.x[0], iomapadr + (adr & WINDOW_MASK)); + spin_unlock(&sbc_gxx_spin); +} + +static void sbc_gxx_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (to & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(to & WINDOW_MASK); + + spin_lock(&sbc_gxx_spin); + sbc_gxx_page(map, to); + memcpy_toio(iomapadr + (to & WINDOW_MASK), from, thislen); + spin_unlock(&sbc_gxx_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static struct map_info sbc_gxx_map = { + .name = "SBC-GXx flash", + .phys = NO_XIP, + .size = MAX_SIZE_KiB*1024, /* this must be set to a maximum possible amount + of flash so the cfi probe routines find all + the chips */ + .bankwidth = 1, + .read = sbc_gxx_read8, + .copy_from = sbc_gxx_copy_from, + .write = sbc_gxx_write8, + .copy_to = sbc_gxx_copy_to +}; + +/* MTD device for all of the flash. */ +static struct mtd_info *all_mtd; + +static void cleanup_sbc_gxx(void) +{ + if( all_mtd ) { + del_mtd_partitions( all_mtd ); + map_destroy( all_mtd ); + } + + iounmap(iomapadr); + release_region(PAGE_IO,PAGE_IO_SIZE); +} + +static int __init init_sbc_gxx(void) +{ + iomapadr = ioremap(WINDOW_START, WINDOW_LENGTH); + if (!iomapadr) { + printk( KERN_ERR"%s: failed to ioremap memory region\n", + sbc_gxx_map.name ); + return -EIO; + } + + if (!request_region( PAGE_IO, PAGE_IO_SIZE, "SBC-GXx flash")) { + printk( KERN_ERR"%s: IO ports 0x%x-0x%x in use\n", + sbc_gxx_map.name, + PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1 ); + iounmap(iomapadr); + return -EAGAIN; + } + + + printk( KERN_INFO"%s: IO:0x%x-0x%x MEM:0x%x-0x%x\n", + sbc_gxx_map.name, + PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1, + WINDOW_START, WINDOW_START+WINDOW_LENGTH-1 ); + + /* Probe for chip. */ + all_mtd = do_map_probe( "cfi_probe", &sbc_gxx_map ); + if( !all_mtd ) { + cleanup_sbc_gxx(); + return -ENXIO; + } + + all_mtd->owner = THIS_MODULE; + + /* Create MTD devices for each partition. */ + add_mtd_partitions(all_mtd, partition_info, NUM_PARTITIONS ); + + return 0; +} + +module_init(init_sbc_gxx); +module_exit(cleanup_sbc_gxx); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Arcom Control Systems Ltd."); +MODULE_DESCRIPTION("MTD map driver for SBC-GXm and SBC-GX1 series boards"); diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c new file mode 100644 index 00000000000..a06ed21e7ed --- /dev/null +++ b/drivers/mtd/maps/sc520cdp.c @@ -0,0 +1,304 @@ +/* sc520cdp.c -- MTD map driver for AMD SC520 Customer Development Platform + * + * Copyright (C) 2001 Sysgo Real-Time Solutions GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * $Id: sc520cdp.c,v 1.21 2004/12/13 10:27:08 dedekind Exp $ + * + * + * The SC520CDP is an evaluation board for the Elan SC520 processor available + * from AMD. It has two banks of 32-bit Flash ROM, each 8 Megabytes in size, + * and up to 512 KiB of 8-bit DIL Flash ROM. + * For details see http://www.amd.com/products/epd/desiging/evalboards/18.elansc520/520_cdp_brief/index.html + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/concat.h> + +/* +** The Embedded Systems BIOS decodes the first FLASH starting at +** 0x8400000. This is a *terrible* place for it because accessing +** the flash at this location causes the A22 address line to be high +** (that's what 0x8400000 binary's ought to be). But this is the highest +** order address line on the raw flash devices themselves!! +** This causes the top HALF of the flash to be accessed first. Beyond +** the physical limits of the flash, the flash chip aliases over (to +** 0x880000 which causes the bottom half to be accessed. This splits the +** flash into two and inverts it! If you then try to access this from another +** program that does NOT do this insanity, then you *will* access the +** first half of the flash, but not find what you expect there. That +** stuff is in the *second* half! Similarly, the address used by the +** BIOS for the second FLASH bank is also quite a bad choice. +** If REPROGRAM_PAR is defined below (the default), then this driver will +** choose more useful addresses for the FLASH banks by reprogramming the +** responsible PARxx registers in the SC520's MMCR region. This will +** cause the settings to be incompatible with the BIOS's settings, which +** shouldn't be a problem since you are running Linux, (i.e. the BIOS is +** not much use anyway). However, if you need to be compatible with +** the BIOS for some reason, just undefine REPROGRAM_PAR. +*/ +#define REPROGRAM_PAR + + + +#ifdef REPROGRAM_PAR + +/* These are the addresses we want.. */ +#define WINDOW_ADDR_0 0x08800000 +#define WINDOW_ADDR_1 0x09000000 +#define WINDOW_ADDR_2 0x09800000 + +/* .. and these are the addresses the BIOS gives us */ +#define WINDOW_ADDR_0_BIOS 0x08400000 +#define WINDOW_ADDR_1_BIOS 0x08c00000 +#define WINDOW_ADDR_2_BIOS 0x09400000 + +#else + +#define WINDOW_ADDR_0 0x08400000 +#define WINDOW_ADDR_1 0x08C00000 +#define WINDOW_ADDR_2 0x09400000 + +#endif + +#define WINDOW_SIZE_0 0x00800000 +#define WINDOW_SIZE_1 0x00800000 +#define WINDOW_SIZE_2 0x00080000 + + +static struct map_info sc520cdp_map[] = { + { + .name = "SC520CDP Flash Bank #0", + .size = WINDOW_SIZE_0, + .bankwidth = 4, + .phys = WINDOW_ADDR_0 + }, + { + .name = "SC520CDP Flash Bank #1", + .size = WINDOW_SIZE_1, + .bankwidth = 4, + .phys = WINDOW_ADDR_1 + }, + { + .name = "SC520CDP DIL Flash", + .size = WINDOW_SIZE_2, + .bankwidth = 1, + .phys = WINDOW_ADDR_2 + }, +}; + +#define NUM_FLASH_BANKS (sizeof(sc520cdp_map)/sizeof(struct map_info)) + +static struct mtd_info *mymtd[NUM_FLASH_BANKS]; +static struct mtd_info *merged_mtd; + +#ifdef REPROGRAM_PAR + +/* +** The SC520 MMCR (memory mapped control register) region resides +** at 0xFFFEF000. The 16 Programmable Address Region (PAR) registers +** are at offset 0x88 in the MMCR: +*/ +#define SC520_MMCR_BASE 0xFFFEF000 +#define SC520_MMCR_EXTENT 0x1000 +#define SC520_PAR(x) ((0x88/sizeof(unsigned long)) + (x)) +#define NUM_SC520_PAR 16 /* total number of PAR registers */ + +/* +** The highest three bits in a PAR register determine what target +** device is controlled by this PAR. Here, only ROMCS? and BOOTCS +** devices are of interest. +*/ +#define SC520_PAR_BOOTCS (0x4<<29) +#define SC520_PAR_ROMCS0 (0x5<<29) +#define SC520_PAR_ROMCS1 (0x6<<29) +#define SC520_PAR_TRGDEV (0x7<<29) + +/* +** Bits 28 thru 26 determine some attributes for the +** region controlled by the PAR. (We only use non-cacheable) +*/ +#define SC520_PAR_WRPROT (1<<26) /* write protected */ +#define SC520_PAR_NOCACHE (1<<27) /* non-cacheable */ +#define SC520_PAR_NOEXEC (1<<28) /* code execution denied */ + + +/* +** Bit 25 determines the granularity: 4K or 64K +*/ +#define SC520_PAR_PG_SIZ4 (0<<25) +#define SC520_PAR_PG_SIZ64 (1<<25) + +/* +** Build a value to be written into a PAR register. +** We only need ROM entries, 64K page size: +*/ +#define SC520_PAR_ENTRY(trgdev, address, size) \ + ((trgdev) | SC520_PAR_NOCACHE | SC520_PAR_PG_SIZ64 | \ + (address) >> 16 | (((size) >> 16) - 1) << 14) + +struct sc520_par_table +{ + unsigned long trgdev; + unsigned long new_par; + unsigned long default_address; +}; + +static struct sc520_par_table par_table[NUM_FLASH_BANKS] = +{ + { /* Flash Bank #0: selected by ROMCS0 */ + SC520_PAR_ROMCS0, + SC520_PAR_ENTRY(SC520_PAR_ROMCS0, WINDOW_ADDR_0, WINDOW_SIZE_0), + WINDOW_ADDR_0_BIOS + }, + { /* Flash Bank #1: selected by ROMCS1 */ + SC520_PAR_ROMCS1, + SC520_PAR_ENTRY(SC520_PAR_ROMCS1, WINDOW_ADDR_1, WINDOW_SIZE_1), + WINDOW_ADDR_1_BIOS + }, + { /* DIL (BIOS) Flash: selected by BOOTCS */ + SC520_PAR_BOOTCS, + SC520_PAR_ENTRY(SC520_PAR_BOOTCS, WINDOW_ADDR_2, WINDOW_SIZE_2), + WINDOW_ADDR_2_BIOS + } +}; + + +static void sc520cdp_setup_par(void) +{ + volatile unsigned long __iomem *mmcr; + unsigned long mmcr_val; + int i, j; + + /* map in SC520's MMCR area */ + mmcr = ioremap_nocache(SC520_MMCR_BASE, SC520_MMCR_EXTENT); + if(!mmcr) { /* ioremap_nocache failed: skip the PAR reprogramming */ + /* force physical address fields to BIOS defaults: */ + for(i = 0; i < NUM_FLASH_BANKS; i++) + sc520cdp_map[i].phys = par_table[i].default_address; + return; + } + + /* + ** Find the PARxx registers that are reponsible for activating + ** ROMCS0, ROMCS1 and BOOTCS. Reprogram each of these with a + ** new value from the table. + */ + for(i = 0; i < NUM_FLASH_BANKS; i++) { /* for each par_table entry */ + for(j = 0; j < NUM_SC520_PAR; j++) { /* for each PAR register */ + mmcr_val = mmcr[SC520_PAR(j)]; + /* if target device field matches, reprogram the PAR */ + if((mmcr_val & SC520_PAR_TRGDEV) == par_table[i].trgdev) + { + mmcr[SC520_PAR(j)] = par_table[i].new_par; + break; + } + } + if(j == NUM_SC520_PAR) + { /* no matching PAR found: try default BIOS address */ + printk(KERN_NOTICE "Could not find PAR responsible for %s\n", + sc520cdp_map[i].name); + printk(KERN_NOTICE "Trying default address 0x%lx\n", + par_table[i].default_address); + sc520cdp_map[i].phys = par_table[i].default_address; + } + } + iounmap(mmcr); +} +#endif + + +static int __init init_sc520cdp(void) +{ + int i, devices_found = 0; + +#ifdef REPROGRAM_PAR + /* reprogram PAR registers so flash appears at the desired addresses */ + sc520cdp_setup_par(); +#endif + + for (i = 0; i < NUM_FLASH_BANKS; i++) { + printk(KERN_NOTICE "SC520 CDP flash device: 0x%lx at 0x%lx\n", + sc520cdp_map[i].size, sc520cdp_map[i].phys); + + sc520cdp_map[i].virt = ioremap_nocache(sc520cdp_map[i].phys, sc520cdp_map[i].size); + + if (!sc520cdp_map[i].virt) { + printk("Failed to ioremap_nocache\n"); + return -EIO; + } + + simple_map_init(&sc520cdp_map[i]); + + mymtd[i] = do_map_probe("cfi_probe", &sc520cdp_map[i]); + if(!mymtd[i]) + mymtd[i] = do_map_probe("jedec_probe", &sc520cdp_map[i]); + if(!mymtd[i]) + mymtd[i] = do_map_probe("map_rom", &sc520cdp_map[i]); + + if (mymtd[i]) { + mymtd[i]->owner = THIS_MODULE; + ++devices_found; + } + else { + iounmap(sc520cdp_map[i].virt); + } + } + if(devices_found >= 2) { + /* Combine the two flash banks into a single MTD device & register it: */ + merged_mtd = mtd_concat_create(mymtd, 2, "SC520CDP Flash Banks #0 and #1"); + if(merged_mtd) + add_mtd_device(merged_mtd); + } + if(devices_found == 3) /* register the third (DIL-Flash) device */ + add_mtd_device(mymtd[2]); + return(devices_found ? 0 : -ENXIO); +} + +static void __exit cleanup_sc520cdp(void) +{ + int i; + + if (merged_mtd) { + del_mtd_device(merged_mtd); + mtd_concat_destroy(merged_mtd); + } + if (mymtd[2]) + del_mtd_device(mymtd[2]); + + for (i = 0; i < NUM_FLASH_BANKS; i++) { + if (mymtd[i]) + map_destroy(mymtd[i]); + if (sc520cdp_map[i].virt) { + iounmap(sc520cdp_map[i].virt); + sc520cdp_map[i].virt = NULL; + } + } +} + +module_init(init_sc520cdp); +module_exit(cleanup_sc520cdp); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sysgo Real-Time Solutions GmbH"); +MODULE_DESCRIPTION("MTD map driver for AMD SC520 Customer Development Platform"); diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c new file mode 100644 index 00000000000..5bb3b600e5d --- /dev/null +++ b/drivers/mtd/maps/scb2_flash.c @@ -0,0 +1,256 @@ +/* + * MTD map driver for BIOS Flash on Intel SCB2 boards + * $Id: scb2_flash.c,v 1.11 2004/11/28 09:40:40 dwmw2 Exp $ + * Copyright (C) 2002 Sun Microsystems, Inc. + * Tim Hockin <thockin@sun.com> + * + * A few notes on this MTD map: + * + * This was developed with a small number of SCB2 boards to test on. + * Hopefully, Intel has not introducted too many unaccounted variables in the + * making of this board. + * + * The BIOS marks its own memory region as 'reserved' in the e820 map. We + * try to request it here, but if it fails, we carry on anyway. + * + * This is how the chip is attached, so said the schematic: + * * a 4 MiB (32 Mib) 16 bit chip + * * a 1 MiB memory region + * * A20 and A21 pulled up + * * D8-D15 ignored + * What this means is that, while we are addressing bytes linearly, we are + * really addressing words, and discarding the other byte. This means that + * the chip MUST BE at least 2 MiB. This also means that every block is + * actually half as big as the chip reports. It also means that accesses of + * logical address 0 hit higher-address sections of the chip, not physical 0. + * One can only hope that these 4MiB x16 chips were a lot cheaper than 1MiB x8 + * chips. + * + * This driver assumes the chip is not write-protected by an external signal. + * As of the this writing, that is true, but may change, just to spite me. + * + * The actual BIOS layout has been mostly reverse engineered. Intel BIOS + * updates for this board include 10 related (*.bio - &.bi9) binary files and + * another separate (*.bbo) binary file. The 10 files are 64k of data + a + * small header. If the headers are stripped off, the 10 64k files can be + * concatenated into a 640k image. This is your BIOS image, proper. The + * separate .bbo file also has a small header. It is the 'Boot Block' + * recovery BIOS. Once the header is stripped, no further prep is needed. + * As best I can tell, the BIOS is arranged as such: + * offset 0x00000 to 0x4ffff (320k): unknown - SCSI BIOS, etc? + * offset 0x50000 to 0xeffff (640k): BIOS proper + * offset 0xf0000 ty 0xfffff (64k): Boot Block region + * + * Intel's BIOS update program flashes the BIOS and Boot Block in separate + * steps. Probably a wise thing to do. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/cfi.h> +#include <linux/config.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> + +#define MODNAME "scb2_flash" +#define SCB2_ADDR 0xfff00000 +#define SCB2_WINDOW 0x00100000 + + +static void __iomem *scb2_ioaddr; +static struct mtd_info *scb2_mtd; +static struct map_info scb2_map = { + .name = "SCB2 BIOS Flash", + .size = 0, + .bankwidth = 1, +}; +static int region_fail; + +static int __devinit +scb2_fixup_mtd(struct mtd_info *mtd) +{ + int i; + int done = 0; + struct map_info *map = mtd->priv; + struct cfi_private *cfi = map->fldrv_priv; + + /* barf if this doesn't look right */ + if (cfi->cfiq->InterfaceDesc != 1) { + printk(KERN_ERR MODNAME ": unsupported InterfaceDesc: %#x\n", + cfi->cfiq->InterfaceDesc); + return -1; + } + + /* I wasn't here. I didn't see. dwmw2. */ + + /* the chip is sometimes bigger than the map - what a waste */ + mtd->size = map->size; + + /* + * We only REALLY get half the chip, due to the way it is + * wired up - D8-D15 are tossed away. We read linear bytes, + * but in reality we are getting 1/2 of each 16-bit read, + * which LOOKS linear to us. Because CFI code accounts for + * things like lock/unlock/erase by eraseregions, we need to + * fudge them to reflect this. Erases go like this: + * * send an erase to an address + * * the chip samples the address and erases the block + * * add the block erasesize to the address and repeat + * -- the problem is that addresses are 16-bit addressable + * -- we end up erasing every-other block + */ + mtd->erasesize /= 2; + for (i = 0; i < mtd->numeraseregions; i++) { + struct mtd_erase_region_info *region = &mtd->eraseregions[i]; + region->erasesize /= 2; + } + + /* + * If the chip is bigger than the map, it is wired with the high + * address lines pulled up. This makes us access the top portion of + * the chip, so all our erase-region info is wrong. Start cutting from + * the bottom. + */ + for (i = 0; !done && i < mtd->numeraseregions; i++) { + struct mtd_erase_region_info *region = &mtd->eraseregions[i]; + + if (region->numblocks * region->erasesize > mtd->size) { + region->numblocks = (mtd->size / region->erasesize); + done = 1; + } else { + region->numblocks = 0; + } + region->offset = 0; + } + + return 0; +} + +/* CSB5's 'Function Control Register' has bits for decoding @ >= 0xffc00000 */ +#define CSB5_FCR 0x41 +#define CSB5_FCR_DECODE_ALL 0x0e +static int __devinit +scb2_flash_probe(struct pci_dev *dev, const struct pci_device_id *ent) +{ + u8 reg; + + /* enable decoding of the flash region in the south bridge */ + pci_read_config_byte(dev, CSB5_FCR, ®); + pci_write_config_byte(dev, CSB5_FCR, reg | CSB5_FCR_DECODE_ALL); + + if (!request_mem_region(SCB2_ADDR, SCB2_WINDOW, scb2_map.name)) { + /* + * The BIOS seems to mark the flash region as 'reserved' + * in the e820 map. Warn and go about our business. + */ + printk(KERN_WARNING MODNAME + ": warning - can't reserve rom window, continuing\n"); + region_fail = 1; + } + + /* remap the IO window (w/o caching) */ + scb2_ioaddr = ioremap_nocache(SCB2_ADDR, SCB2_WINDOW); + if (!scb2_ioaddr) { + printk(KERN_ERR MODNAME ": Failed to ioremap window!\n"); + if (!region_fail) + release_mem_region(SCB2_ADDR, SCB2_WINDOW); + return -ENOMEM; + } + + scb2_map.phys = SCB2_ADDR; + scb2_map.virt = scb2_ioaddr; + scb2_map.size = SCB2_WINDOW; + + simple_map_init(&scb2_map); + + /* try to find a chip */ + scb2_mtd = do_map_probe("cfi_probe", &scb2_map); + + if (!scb2_mtd) { + printk(KERN_ERR MODNAME ": flash probe failed!\n"); + iounmap(scb2_ioaddr); + if (!region_fail) + release_mem_region(SCB2_ADDR, SCB2_WINDOW); + return -ENODEV; + } + + scb2_mtd->owner = THIS_MODULE; + if (scb2_fixup_mtd(scb2_mtd) < 0) { + del_mtd_device(scb2_mtd); + map_destroy(scb2_mtd); + iounmap(scb2_ioaddr); + if (!region_fail) + release_mem_region(SCB2_ADDR, SCB2_WINDOW); + return -ENODEV; + } + + printk(KERN_NOTICE MODNAME ": chip size 0x%x at offset 0x%x\n", + scb2_mtd->size, SCB2_WINDOW - scb2_mtd->size); + + add_mtd_device(scb2_mtd); + + return 0; +} + +static void __devexit +scb2_flash_remove(struct pci_dev *dev) +{ + if (!scb2_mtd) + return; + + /* disable flash writes */ + if (scb2_mtd->lock) + scb2_mtd->lock(scb2_mtd, 0, scb2_mtd->size); + + del_mtd_device(scb2_mtd); + map_destroy(scb2_mtd); + + iounmap(scb2_ioaddr); + scb2_ioaddr = NULL; + + if (!region_fail) + release_mem_region(SCB2_ADDR, SCB2_WINDOW); + pci_set_drvdata(dev, NULL); +} + +static struct pci_device_id scb2_flash_pci_ids[] = { + { + .vendor = PCI_VENDOR_ID_SERVERWORKS, + .device = PCI_DEVICE_ID_SERVERWORKS_CSB5, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID + }, + { 0, } +}; + +static struct pci_driver scb2_flash_driver = { + .name = "Intel SCB2 BIOS Flash", + .id_table = scb2_flash_pci_ids, + .probe = scb2_flash_probe, + .remove = __devexit_p(scb2_flash_remove), +}; + +static int __init +scb2_flash_init(void) +{ + return pci_module_init(&scb2_flash_driver); +} + +static void __exit +scb2_flash_exit(void) +{ + pci_unregister_driver(&scb2_flash_driver); +} + +module_init(scb2_flash_init); +module_exit(scb2_flash_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Tim Hockin <thockin@sun.com>"); +MODULE_DESCRIPTION("MTD map driver for Intel SCB2 BIOS Flash"); +MODULE_DEVICE_TABLE(pci, scb2_flash_pci_ids); diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c new file mode 100644 index 00000000000..0ece3786d6e --- /dev/null +++ b/drivers/mtd/maps/scx200_docflash.c @@ -0,0 +1,233 @@ +/* linux/drivers/mtd/maps/scx200_docflash.c + + Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com> + + $Id: scx200_docflash.c,v 1.10 2004/11/28 09:40:40 dwmw2 Exp $ + + National Semiconductor SCx200 flash mapped with DOCCS +*/ + +#include <linux/module.h> +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <linux/pci.h> +#include <linux/scx200.h> + +#define NAME "scx200_docflash" + +MODULE_AUTHOR("Christer Weinigel <wingel@hack.org>"); +MODULE_DESCRIPTION("NatSemi SCx200 DOCCS Flash Driver"); +MODULE_LICENSE("GPL"); + +static int probe = 0; /* Don't autoprobe */ +static unsigned size = 0x1000000; /* 16 MiB the whole ISA address space */ +static unsigned width = 8; /* Default to 8 bits wide */ +static char *flashtype = "cfi_probe"; + +module_param(probe, int, 0); +MODULE_PARM_DESC(probe, "Probe for a BIOS mapping"); +module_param(size, int, 0); +MODULE_PARM_DESC(size, "Size of the flash mapping"); +module_param(width, int, 0); +MODULE_PARM_DESC(width, "Data width of the flash mapping (8/16)"); +module_param(flashtype, charp, 0); +MODULE_PARM_DESC(flashtype, "Type of MTD probe to do"); + +static struct resource docmem = { + .flags = IORESOURCE_MEM, + .name = "NatSemi SCx200 DOCCS Flash", +}; + +static struct mtd_info *mymtd; + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition partition_info[] = { + { + .name = "DOCCS Boot kernel", + .offset = 0, + .size = 0xc0000 + }, + { + .name = "DOCCS Low BIOS", + .offset = 0xc0000, + .size = 0x40000 + }, + { + .name = "DOCCS File system", + .offset = 0x100000, + .size = ~0 /* calculate from flash size */ + }, + { + .name = "DOCCS High BIOS", + .offset = ~0, /* calculate from flash size */ + .size = 0x80000 + }, +}; +#define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0])) +#endif + + +static struct map_info scx200_docflash_map = { + .name = "NatSemi SCx200 DOCCS Flash", +}; + +static int __init init_scx200_docflash(void) +{ + unsigned u; + unsigned base; + unsigned ctrl; + unsigned pmr; + struct pci_dev *bridge; + + printk(KERN_DEBUG NAME ": NatSemi SCx200 DOCCS Flash Driver\n"); + + if ((bridge = pci_find_device(PCI_VENDOR_ID_NS, + PCI_DEVICE_ID_NS_SCx200_BRIDGE, + NULL)) == NULL) + return -ENODEV; + + /* check that we have found the configuration block */ + if (!scx200_cb_present()) + return -ENODEV; + + if (probe) { + /* Try to use the present flash mapping if any */ + pci_read_config_dword(bridge, SCx200_DOCCS_BASE, &base); + pci_read_config_dword(bridge, SCx200_DOCCS_CTRL, &ctrl); + pmr = inl(scx200_cb_base + SCx200_PMR); + + if (base == 0 + || (ctrl & 0x07000000) != 0x07000000 + || (ctrl & 0x0007ffff) == 0) + return -ENODEV; + + size = ((ctrl&0x1fff)<<13) + (1<<13); + + for (u = size; u > 1; u >>= 1) + ; + if (u != 1) + return -ENODEV; + + if (pmr & (1<<6)) + width = 16; + else + width = 8; + + docmem.start = base; + docmem.end = base + size; + + if (request_resource(&iomem_resource, &docmem)) { + printk(KERN_ERR NAME ": unable to allocate memory for flash mapping\n"); + return -ENOMEM; + } + } else { + for (u = size; u > 1; u >>= 1) + ; + if (u != 1) { + printk(KERN_ERR NAME ": invalid size for flash mapping\n"); + return -EINVAL; + } + + if (width != 8 && width != 16) { + printk(KERN_ERR NAME ": invalid bus width for flash mapping\n"); + return -EINVAL; + } + + if (allocate_resource(&iomem_resource, &docmem, + size, + 0xc0000000, 0xffffffff, + size, NULL, NULL)) { + printk(KERN_ERR NAME ": unable to allocate memory for flash mapping\n"); + return -ENOMEM; + } + + ctrl = 0x07000000 | ((size-1) >> 13); + + printk(KERN_INFO "DOCCS BASE=0x%08lx, CTRL=0x%08lx\n", (long)docmem.start, (long)ctrl); + + pci_write_config_dword(bridge, SCx200_DOCCS_BASE, docmem.start); + pci_write_config_dword(bridge, SCx200_DOCCS_CTRL, ctrl); + pmr = inl(scx200_cb_base + SCx200_PMR); + + if (width == 8) { + pmr &= ~(1<<6); + } else { + pmr |= (1<<6); + } + outl(pmr, scx200_cb_base + SCx200_PMR); + } + + printk(KERN_INFO NAME ": DOCCS mapped at 0x%lx-0x%lx, width %d\n", + docmem.start, docmem.end, width); + + scx200_docflash_map.size = size; + if (width == 8) + scx200_docflash_map.bankwidth = 1; + else + scx200_docflash_map.bankwidth = 2; + + simple_map_init(&scx200_docflash_map); + + scx200_docflash_map.phys = docmem.start; + scx200_docflash_map.virt = ioremap(docmem.start, scx200_docflash_map.size); + if (!scx200_docflash_map.virt) { + printk(KERN_ERR NAME ": failed to ioremap the flash\n"); + release_resource(&docmem); + return -EIO; + } + + mymtd = do_map_probe(flashtype, &scx200_docflash_map); + if (!mymtd) { + printk(KERN_ERR NAME ": unable to detect flash\n"); + iounmap(scx200_docflash_map.virt); + release_resource(&docmem); + return -ENXIO; + } + + if (size < mymtd->size) + printk(KERN_WARNING NAME ": warning, flash mapping is smaller than flash size\n"); + + mymtd->owner = THIS_MODULE; + +#ifdef CONFIG_MTD_PARTITIONS + partition_info[3].offset = mymtd->size-partition_info[3].size; + partition_info[2].size = partition_info[3].offset-partition_info[2].offset; + add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); +#else + add_mtd_device(mymtd); +#endif + return 0; +} + +static void __exit cleanup_scx200_docflash(void) +{ + if (mymtd) { +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(mymtd); +#else + del_mtd_device(mymtd); +#endif + map_destroy(mymtd); + } + if (scx200_docflash_map.virt) { + iounmap(scx200_docflash_map.virt); + release_resource(&docmem); + } +} + +module_init(init_scx200_docflash); +module_exit(cleanup_scx200_docflash); + +/* + Local variables: + compile-command: "make -k -C ../../.. SUBDIRS=drivers/mtd/maps modules" + c-basic-offset: 8 + End: +*/ diff --git a/drivers/mtd/maps/sharpsl-flash.c b/drivers/mtd/maps/sharpsl-flash.c new file mode 100644 index 00000000000..b3b39cb7c60 --- /dev/null +++ b/drivers/mtd/maps/sharpsl-flash.c @@ -0,0 +1,101 @@ +/* + * sharpsl-flash.c + * + * Copyright (C) 2001 Lineo Japan, Inc. + * Copyright (C) 2002 SHARP + * + * $Id: sharpsl-flash.c,v 1.2 2004/11/24 20:38:06 rpurdie Exp $ + * + * based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp + * Handle mapping of the flash on the RPX Lite and CLLF boards + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#define WINDOW_ADDR 0x00000000 +#define WINDOW_SIZE 0x01000000 +#define BANK_WIDTH 2 + +static struct mtd_info *mymtd; + +struct map_info sharpsl_map = { + .name = "sharpsl-flash", + .size = WINDOW_SIZE, + .bankwidth = BANK_WIDTH, + .phys = WINDOW_ADDR +}; + +static struct mtd_partition sharpsl_partitions[1] = { + { + name: "Filesystem", + size: 0x006d0000, + offset: 0x00120000 + } +}; + +#define NB_OF(x) (sizeof(x)/sizeof(x[0])) + +int __init init_sharpsl(void) +{ + struct mtd_partition *parts; + int nb_parts = 0; + char *part_type = "static"; + + printk(KERN_NOTICE "Sharp SL series flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR); + sharpsl_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); + if (!sharpsl_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + mymtd = do_map_probe("map_rom", &sharpsl_map); + if (!mymtd) { + iounmap(sharpsl_map.virt); + return -ENXIO; + } + + mymtd->owner = THIS_MODULE; + + parts = sharpsl_partitions; + nb_parts = NB_OF(sharpsl_partitions); + + printk(KERN_NOTICE "Using %s partision definition\n", part_type); + add_mtd_partitions(mymtd, parts, nb_parts); + + return 0; +} + +static void __exit cleanup_sharpsl(void) +{ + if (mymtd) { + del_mtd_partitions(mymtd); + map_destroy(mymtd); + } + if (sharpsl_map.virt) { + iounmap(sharpsl_map.virt); + sharpsl_map.virt = 0; + } +} + +module_init(init_sharpsl); +module_exit(cleanup_sharpsl); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("SHARP (Original: Arnold Christensen <AKC@pel.dk>)"); +MODULE_DESCRIPTION("MTD map driver for SHARP SL series"); diff --git a/drivers/mtd/maps/solutionengine.c b/drivers/mtd/maps/solutionengine.c new file mode 100644 index 00000000000..8ce5d897645 --- /dev/null +++ b/drivers/mtd/maps/solutionengine.c @@ -0,0 +1,137 @@ +/* + * $Id: solutionengine.c,v 1.14 2004/09/16 23:27:14 gleixner Exp $ + * + * Flash and EPROM on Hitachi Solution Engine and similar boards. + * + * (C) 2001 Red Hat, Inc. + * + * GPL'd + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <linux/errno.h> + +static struct mtd_info *flash_mtd; +static struct mtd_info *eprom_mtd; + +static struct mtd_partition *parsed_parts; + +struct map_info soleng_eprom_map = { + .name = "Solution Engine EPROM", + .size = 0x400000, + .bankwidth = 4, +}; + +struct map_info soleng_flash_map = { + .name = "Solution Engine FLASH", + .size = 0x400000, + .bankwidth = 4, +}; + +static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; + +#ifdef CONFIG_MTD_SUPERH_RESERVE +static struct mtd_partition superh_se_partitions[] = { + /* Reserved for boot code, read-only */ + { + .name = "flash_boot", + .offset = 0x00000000, + .size = CONFIG_MTD_SUPERH_RESERVE, + .mask_flags = MTD_WRITEABLE, + }, + /* All else is writable (e.g. JFFS) */ + { + .name = "Flash FS", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL, + } +}; +#endif /* CONFIG_MTD_SUPERH_RESERVE */ + +static int __init init_soleng_maps(void) +{ + int nr_parts = 0; + + /* First probe at offset 0 */ + soleng_flash_map.phys = 0; + soleng_flash_map.virt = (void __iomem *)P2SEGADDR(0); + soleng_eprom_map.phys = 0x01000000; + soleng_eprom_map.virt = (void __iomem *)P1SEGADDR(0x01000000); + simple_map_init(&soleng_eprom_map); + simple_map_init(&soleng_flash_map); + + printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n"); + flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map); + if (!flash_mtd) { + /* Not there. Try swapping */ + printk(KERN_NOTICE "Probing for flash chips at 0x01000000:\n"); + soleng_flash_map.phys = 0x01000000; + soleng_flash_map.virt = P2SEGADDR(0x01000000); + soleng_eprom_map.phys = 0; + soleng_eprom_map.virt = P1SEGADDR(0); + flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map); + if (!flash_mtd) { + /* Eep. */ + printk(KERN_NOTICE "Flash chips not detected at either possible location.\n"); + return -ENXIO; + } + } + printk(KERN_NOTICE "Solution Engine: Flash at 0x%08lx, EPROM at 0x%08lx\n", + soleng_flash_map.phys & 0x1fffffff, + soleng_eprom_map.phys & 0x1fffffff); + flash_mtd->owner = THIS_MODULE; + + eprom_mtd = do_map_probe("map_rom", &soleng_eprom_map); + if (eprom_mtd) { + eprom_mtd->owner = THIS_MODULE; + add_mtd_device(eprom_mtd); + } + + nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0); + +#ifdef CONFIG_MTD_SUPERH_RESERVE + if (nr_parts <= 0) { + printk(KERN_NOTICE "Using configured partition at 0x%08x.\n", + CONFIG_MTD_SUPERH_RESERVE); + parsed_parts = superh_se_partitions; + nr_parts = sizeof(superh_se_partitions)/sizeof(*parsed_parts); + } +#endif /* CONFIG_MTD_SUPERH_RESERVE */ + + if (nr_parts > 0) + add_mtd_partitions(flash_mtd, parsed_parts, nr_parts); + else + add_mtd_device(flash_mtd); + + return 0; +} + +static void __exit cleanup_soleng_maps(void) +{ + if (eprom_mtd) { + del_mtd_device(eprom_mtd); + map_destroy(eprom_mtd); + } + + if (parsed_parts) + del_mtd_partitions(flash_mtd); + else + del_mtd_device(flash_mtd); + map_destroy(flash_mtd); +} + +module_init(init_soleng_maps); +module_exit(cleanup_soleng_maps); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); +MODULE_DESCRIPTION("MTD map driver for Hitachi SolutionEngine (and similar) boards"); + diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c new file mode 100644 index 00000000000..29091d10030 --- /dev/null +++ b/drivers/mtd/maps/sun_uflash.c @@ -0,0 +1,177 @@ +/* $Id: sun_uflash.c,v 1.11 2004/11/04 13:24:15 gleixner Exp $ + * + * sun_uflash - Driver implementation for user-programmable flash + * present on many Sun Microsystems SME boardsets. + * + * This driver does NOT provide access to the OBP-flash for + * safety reasons-- use <linux>/drivers/sbus/char/flash.c instead. + * + * Copyright (c) 2001 Eric Brower (ebrower@usa.net) + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <asm/ebus.h> +#include <asm/oplib.h> +#include <asm/uaccess.h> +#include <asm/io.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> + +#define UFLASH_OBPNAME "flashprom" +#define UFLASH_DEVNAME "userflash" + +#define UFLASH_WINDOW_SIZE 0x200000 +#define UFLASH_BUSWIDTH 1 /* EBus is 8-bit */ + +MODULE_AUTHOR + ("Eric Brower <ebrower@usa.net>"); +MODULE_DESCRIPTION + ("User-programmable flash device on Sun Microsystems boardsets"); +MODULE_SUPPORTED_DEVICE + ("userflash"); +MODULE_LICENSE + ("GPL"); + +static LIST_HEAD(device_list); +struct uflash_dev { + char * name; /* device name */ + struct map_info map; /* mtd map info */ + struct mtd_info * mtd; /* mtd info */ + struct list_head list; +}; + + +struct map_info uflash_map_templ = { + .name = "SUNW,???-????", + .size = UFLASH_WINDOW_SIZE, + .bankwidth = UFLASH_BUSWIDTH, +}; + +int uflash_devinit(struct linux_ebus_device* edev) +{ + int iTmp, nregs; + struct linux_prom_registers regs[2]; + struct uflash_dev *pdev; + + iTmp = prom_getproperty( + edev->prom_node, "reg", (void *)regs, sizeof(regs)); + if ((iTmp % sizeof(regs[0])) != 0) { + printk("%s: Strange reg property size %d\n", + UFLASH_DEVNAME, iTmp); + return -ENODEV; + } + + nregs = iTmp / sizeof(regs[0]); + + if (nregs != 1) { + /* Non-CFI userflash device-- once I find one we + * can work on supporting it. + */ + printk("%s: unsupported device at 0x%lx (%d regs): " \ + "email ebrower@usa.net\n", + UFLASH_DEVNAME, edev->resource[0].start, nregs); + return -ENODEV; + } + + if(0 == (pdev = kmalloc(sizeof(struct uflash_dev), GFP_KERNEL))) { + printk("%s: unable to kmalloc new device\n", UFLASH_DEVNAME); + return(-ENOMEM); + } + + /* copy defaults and tweak parameters */ + memcpy(&pdev->map, &uflash_map_templ, sizeof(uflash_map_templ)); + pdev->map.size = regs[0].reg_size; + + iTmp = prom_getproplen(edev->prom_node, "model"); + pdev->name = kmalloc(iTmp, GFP_KERNEL); + prom_getstring(edev->prom_node, "model", pdev->name, iTmp); + if(0 != pdev->name && 0 < strlen(pdev->name)) { + pdev->map.name = pdev->name; + } + pdev->map.phys = edev->resource[0].start; + pdev->map.virt = ioremap_nocache(edev->resource[0].start, pdev->map.size); + if(0 == pdev->map.virt) { + printk("%s: failed to map device\n", __FUNCTION__); + kfree(pdev->name); + kfree(pdev); + return(-1); + } + + simple_map_init(&pdev->map); + + /* MTD registration */ + pdev->mtd = do_map_probe("cfi_probe", &pdev->map); + if(0 == pdev->mtd) { + iounmap(pdev->map.virt); + kfree(pdev->name); + kfree(pdev); + return(-ENXIO); + } + + list_add(&pdev->list, &device_list); + + pdev->mtd->owner = THIS_MODULE; + + add_mtd_device(pdev->mtd); + return(0); +} + +static int __init uflash_init(void) +{ + struct linux_ebus *ebus = NULL; + struct linux_ebus_device *edev = NULL; + + for_each_ebus(ebus) { + for_each_ebusdev(edev, ebus) { + if (!strcmp(edev->prom_name, UFLASH_OBPNAME)) { + if(0 > prom_getproplen(edev->prom_node, "user")) { + DEBUG(2, "%s: ignoring device at 0x%lx\n", + UFLASH_DEVNAME, edev->resource[0].start); + } else { + uflash_devinit(edev); + } + } + } + } + + if(list_empty(&device_list)) { + printk("%s: unable to locate device\n", UFLASH_DEVNAME); + return -ENODEV; + } + return(0); +} + +static void __exit uflash_cleanup(void) +{ + struct list_head *udevlist; + struct uflash_dev *udev; + + list_for_each(udevlist, &device_list) { + udev = list_entry(udevlist, struct uflash_dev, list); + DEBUG(2, "%s: removing device %s\n", + UFLASH_DEVNAME, udev->name); + + if(0 != udev->mtd) { + del_mtd_device(udev->mtd); + map_destroy(udev->mtd); + } + if(0 != udev->map.virt) { + iounmap(udev->map.virt); + udev->map.virt = NULL; + } + if(0 != udev->name) { + kfree(udev->name); + } + kfree(udev); + } +} + +module_init(uflash_init); +module_exit(uflash_cleanup); diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c new file mode 100644 index 00000000000..995e9991cb8 --- /dev/null +++ b/drivers/mtd/maps/tqm8xxl.c @@ -0,0 +1,263 @@ +/* + * Handle mapping of the flash memory access routines + * on TQM8xxL based devices. + * + * $Id: tqm8xxl.c,v 1.13 2004/10/20 22:21:53 dwmw2 Exp $ + * + * based on rpxlite.c + * + * Copyright(C) 2001 Kirk Lee <kirk@hpc.ee.ntu.edu.tw> + * + * This code is GPLed + * + */ + +/* + * According to TQM8xxL hardware manual, TQM8xxL series have + * following flash memory organisations: + * | capacity | | chip type | | bank0 | | bank1 | + * 2MiB 512Kx16 2MiB 0 + * 4MiB 1Mx16 4MiB 0 + * 8MiB 1Mx16 4MiB 4MiB + * Thus, we choose CONFIG_MTD_CFI_I2 & CONFIG_MTD_CFI_B4 at + * kernel configuration. + */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#define FLASH_ADDR 0x40000000 +#define FLASH_SIZE 0x00800000 +#define FLASH_BANK_MAX 4 + +// trivial struct to describe partition information +struct mtd_part_def +{ + int nums; + unsigned char *type; + struct mtd_partition* mtd_part; +}; + +//static struct mtd_info *mymtd; +static struct mtd_info* mtd_banks[FLASH_BANK_MAX]; +static struct map_info* map_banks[FLASH_BANK_MAX]; +static struct mtd_part_def part_banks[FLASH_BANK_MAX]; +static unsigned long num_banks; +static void __iomem *start_scan_addr; + +/* + * Here are partition information for all known TQM8xxL series devices. + * See include/linux/mtd/partitions.h for definition of the mtd_partition + * structure. + * + * The *_max_flash_size is the maximum possible mapped flash size which + * is not necessarily the actual flash size. It must correspond to the + * value specified in the mapping definition defined by the + * "struct map_desc *_io_desc" for the corresponding machine. + */ + +#ifdef CONFIG_MTD_PARTITIONS +/* Currently, TQM8xxL has upto 8MiB flash */ +static unsigned long tqm8xxl_max_flash_size = 0x00800000; + +/* partition definition for first flash bank + * (cf. "drivers/char/flash_config.c") + */ +static struct mtd_partition tqm8xxl_partitions[] = { + { + .name = "ppcboot", + .offset = 0x00000000, + .size = 0x00020000, /* 128KB */ + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "kernel", /* default kernel image */ + .offset = 0x00020000, + .size = 0x000e0000, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "user", + .offset = 0x00100000, + .size = 0x00100000, + }, + { + .name = "initrd", + .offset = 0x00200000, + .size = 0x00200000, + } +}; +/* partition definition for second flash bank */ +static struct mtd_partition tqm8xxl_fs_partitions[] = { + { + .name = "cramfs", + .offset = 0x00000000, + .size = 0x00200000, + }, + { + .name = "jffs", + .offset = 0x00200000, + .size = 0x00200000, + //.size = MTDPART_SIZ_FULL, + } +}; +#endif + +int __init init_tqm_mtd(void) +{ + int idx = 0, ret = 0; + unsigned long flash_addr, flash_size, mtd_size = 0; + /* pointer to TQM8xxL board info data */ + bd_t *bd = (bd_t *)__res; + + flash_addr = bd->bi_flashstart; + flash_size = bd->bi_flashsize; + + //request maximum flash size address space + start_scan_addr = ioremap(flash_addr, flash_size); + if (!start_scan_addr) { + printk(KERN_WARNING "%s:Failed to ioremap address:0x%x\n", __FUNCTION__, flash_addr); + return -EIO; + } + + for (idx = 0 ; idx < FLASH_BANK_MAX ; idx++) { + if(mtd_size >= flash_size) + break; + + printk(KERN_INFO "%s: chip probing count %d\n", __FUNCTION__, idx); + + map_banks[idx] = (struct map_info *)kmalloc(sizeof(struct map_info), GFP_KERNEL); + if(map_banks[idx] == NULL) { + ret = -ENOMEM; + /* FIXME: What if some MTD devices were probed already? */ + goto error_mem; + } + + memset((void *)map_banks[idx], 0, sizeof(struct map_info)); + map_banks[idx]->name = (char *)kmalloc(16, GFP_KERNEL); + + if (!map_banks[idx]->name) { + ret = -ENOMEM; + /* FIXME: What if some MTD devices were probed already? */ + goto error_mem; + } + sprintf(map_banks[idx]->name, "TQM8xxL%d", idx); + + map_banks[idx]->size = flash_size; + map_banks[idx]->bankwidth = 4; + + simple_map_init(map_banks[idx]); + + map_banks[idx]->virt = start_scan_addr; + map_banks[idx]->phys = flash_addr; + /* FIXME: This looks utterly bogus, but I'm trying to + preserve the behaviour of the original (shown here)... + + map_banks[idx]->map_priv_1 = + start_scan_addr + ((idx > 0) ? + (mtd_banks[idx-1] ? mtd_banks[idx-1]->size : 0) : 0); + */ + + if (idx && mtd_banks[idx-1]) { + map_banks[idx]->virt += mtd_banks[idx-1]->size; + map_banks[idx]->phys += mtd_banks[idx-1]->size; + } + + //start to probe flash chips + mtd_banks[idx] = do_map_probe("cfi_probe", map_banks[idx]); + + if (mtd_banks[idx]) { + mtd_banks[idx]->owner = THIS_MODULE; + mtd_size += mtd_banks[idx]->size; + num_banks++; + + printk(KERN_INFO "%s: bank%d, name:%s, size:%dbytes \n", __FUNCTION__, num_banks, + mtd_banks[idx]->name, mtd_banks[idx]->size); + } + } + + /* no supported flash chips found */ + if (!num_banks) { + printk(KERN_NOTICE "TQM8xxL: No support flash chips found!\n"); + ret = -ENXIO; + goto error_mem; + } + +#ifdef CONFIG_MTD_PARTITIONS + /* + * Select Static partition definitions + */ + part_banks[0].mtd_part = tqm8xxl_partitions; + part_banks[0].type = "Static image"; + part_banks[0].nums = ARRAY_SIZE(tqm8xxl_partitions); + + part_banks[1].mtd_part = tqm8xxl_fs_partitions; + part_banks[1].type = "Static file system"; + part_banks[1].nums = ARRAY_SIZE(tqm8xxl_fs_partitions); + + for(idx = 0; idx < num_banks ; idx++) { + if (part_banks[idx].nums == 0) { + printk(KERN_NOTICE "TQM flash%d: no partition info available, registering whole flash at once\n", idx); + add_mtd_device(mtd_banks[idx]); + } else { + printk(KERN_NOTICE "TQM flash%d: Using %s partition definition\n", + idx, part_banks[idx].type); + add_mtd_partitions(mtd_banks[idx], part_banks[idx].mtd_part, + part_banks[idx].nums); + } + } +#else + printk(KERN_NOTICE "TQM flash: registering %d whole flash banks at once\n", num_banks); + for(idx = 0 ; idx < num_banks ; idx++) + add_mtd_device(mtd_banks[idx]); +#endif + return 0; +error_mem: + for(idx = 0 ; idx < FLASH_BANK_MAX ; idx++) { + if(map_banks[idx] != NULL) { + if(map_banks[idx]->name != NULL) { + kfree(map_banks[idx]->name); + map_banks[idx]->name = NULL; + } + kfree(map_banks[idx]); + map_banks[idx] = NULL; + } + } +error: + iounmap(start_scan_addr); + return ret; +} + +static void __exit cleanup_tqm_mtd(void) +{ + unsigned int idx = 0; + for(idx = 0 ; idx < num_banks ; idx++) { + /* destroy mtd_info previously allocated */ + if (mtd_banks[idx]) { + del_mtd_partitions(mtd_banks[idx]); + map_destroy(mtd_banks[idx]); + } + /* release map_info not used anymore */ + kfree(map_banks[idx]->name); + kfree(map_banks[idx]); + } + + if (start_scan_addr) { + iounmap(start_scan_addr); + start_scan_addr = 0; + } +} + +module_init(init_tqm_mtd); +module_exit(cleanup_tqm_mtd); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Kirk Lee <kirk@hpc.ee.ntu.edu.tw>"); +MODULE_DESCRIPTION("MTD map driver for TQM8xxL boards"); diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c new file mode 100644 index 00000000000..3ebd90f5650 --- /dev/null +++ b/drivers/mtd/maps/ts5500_flash.c @@ -0,0 +1,141 @@ +/* + * ts5500_flash.c -- MTD map driver for Technology Systems TS-5500 board + * + * Copyright (C) 2004 Sean Young <sean@mess.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * Note: + * - In order for detection to work, jumper 3 must be set. + * - Drive A and B use a proprietary FTL from General Software which isn't + * supported as of yet so standard drives can't be mounted; you can create + * your own (e.g. jffs) file system. + * - If you have created your own jffs file system and the bios overwrites + * it during boot, try disabling Drive A: and B: in the boot order. + * + * $Id: ts5500_flash.c,v 1.2 2004/11/28 09:40:40 dwmw2 Exp $ + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> + +#ifdef CONFIG_MTD_PARTITIONS +#include <linux/mtd/partitions.h> +#endif + +#define WINDOW_ADDR 0x09400000 +#define WINDOW_SIZE 0x00200000 + +static struct map_info ts5500_map = { + .name = "TS-5500 Flash", + .size = WINDOW_SIZE, + .bankwidth = 1, + .phys = WINDOW_ADDR +}; + +#ifdef CONFIG_MTD_PARTITIONS +static struct mtd_partition ts5500_partitions[] = { + { + .name = "Drive A", + .offset = 0, + .size = 0x0e0000 + }, + { + .name = "BIOS", + .offset = 0x0e0000, + .size = 0x020000, + }, + { + .name = "Drive B", + .offset = 0x100000, + .size = 0x100000 + } +}; + +#define NUM_PARTITIONS (sizeof(ts5500_partitions)/sizeof(struct mtd_partition)) + +#endif + +static struct mtd_info *mymtd; + +static int __init init_ts5500_map(void) +{ + int rc = 0; + + ts5500_map.virt = ioremap_nocache(ts5500_map.phys, ts5500_map.size); + + if(!ts5500_map.virt) { + printk(KERN_ERR "Failed to ioremap_nocache\n"); + rc = -EIO; + goto err_out_ioremap; + } + + simple_map_init(&ts5500_map); + + mymtd = do_map_probe("jedec_probe", &ts5500_map); + if(!mymtd) + mymtd = do_map_probe("map_rom", &ts5500_map); + + if(!mymtd) { + rc = -ENXIO; + goto err_out_map; + } + + mymtd->owner = THIS_MODULE; +#ifdef CONFIG_MTD_PARTITIONS + add_mtd_partitions(mymtd, ts5500_partitions, NUM_PARTITIONS); +#else + add_mtd_device(mymtd); +#endif + + return 0; + +err_out_map: + map_destroy(mymtd); +err_out_ioremap: + iounmap(ts5500_map.virt); + + return rc; +} + +static void __exit cleanup_ts5500_map(void) +{ + if (mymtd) { +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(mymtd); +#else + del_mtd_device(mymtd); +#endif + map_destroy(mymtd); + } + + if (ts5500_map.virt) { + iounmap(ts5500_map.virt); + ts5500_map.virt = NULL; + } +} + +module_init(init_ts5500_map); +module_exit(cleanup_ts5500_map); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sean Young <sean@mess.org>"); +MODULE_DESCRIPTION("MTD map driver for Techology Systems TS-5500 board"); + diff --git a/drivers/mtd/maps/tsunami_flash.c b/drivers/mtd/maps/tsunami_flash.c new file mode 100644 index 00000000000..170d71239e5 --- /dev/null +++ b/drivers/mtd/maps/tsunami_flash.c @@ -0,0 +1,108 @@ +/* + * tsunami_flash.c + * + * flash chip on alpha ds10... + * $Id: tsunami_flash.c,v 1.9 2004/07/14 09:52:55 dwmw2 Exp $ + */ +#include <asm/io.h> +#include <asm/core_tsunami.h> +#include <linux/init.h> +#include <linux/mtd/map.h> +#include <linux/mtd/mtd.h> + +#define FLASH_ENABLE_PORT 0x00C00001 +#define FLASH_ENABLE_BYTE 0x01 +#define FLASH_DISABLE_BYTE 0x00 + +#define MAX_TIG_FLASH_SIZE (12*1024*1024) +static inline map_word tsunami_flash_read8(struct map_info *map, unsigned long offset) +{ + map_word val; + val.x[0] = tsunami_tig_readb(offset); + return val; +} + +static void tsunami_flash_write8(struct map_info *map, map_word value, unsigned long offset) +{ + tsunami_tig_writeb(value.x[0], offset); +} + +static void tsunami_flash_copy_from( + struct map_info *map, void *addr, unsigned long offset, ssize_t len) +{ + unsigned char *dest; + dest = addr; + while(len && (offset < MAX_TIG_FLASH_SIZE)) { + *dest = tsunami_tig_readb(offset); + offset++; + dest++; + len--; + } +} + +static void tsunami_flash_copy_to( + struct map_info *map, unsigned long offset, + const void *addr, ssize_t len) +{ + const unsigned char *src; + src = addr; + while(len && (offset < MAX_TIG_FLASH_SIZE)) { + tsunami_tig_writeb(*src, offset); + offset++; + src++; + len--; + } +} + +/* + * Deliberately don't provide operations wider than 8 bits. I don't + * have then and it scares me to think how you could mess up if + * you tried to use them. Buswidth is correctly so I'm safe. + */ +static struct map_info tsunami_flash_map = { + .name = "flash chip on the Tsunami TIG bus", + .size = MAX_TIG_FLASH_SIZE, + .phys = NO_XIP; + .bankwidth = 1, + .read = tsunami_flash_read8, + .copy_from = tsunami_flash_copy_from, + .write = tsunami_flash_write8, + .copy_to = tsunami_flash_copy_to, +}; + +static struct mtd_info *tsunami_flash_mtd; + +static void __exit cleanup_tsunami_flash(void) +{ + struct mtd_info *mtd; + mtd = tsunami_flash_mtd; + if (mtd) { + del_mtd_device(mtd); + map_destroy(mtd); + } + tsunami_flash_mtd = 0; +} + + +static int __init init_tsunami_flash(void) +{ + static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", NULL }; + char **type; + + tsunami_tig_writeb(FLASH_ENABLE_BYTE, FLASH_ENABLE_PORT); + + tsunami_flash_mtd = 0; + type = rom_probe_types; + for(; !tsunami_flash_mtd && *type; type++) { + tsunami_flash_mtd = do_map_probe(*type, &tsunami_flash_map); + } + if (tsunami_flash_mtd) { + tsunami_flash_mtd->owner = THIS_MODULE; + add_mtd_device(tsunami_flash_mtd); + return 0; + } + return -ENXIO; +} + +module_init(init_tsunami_flash); +module_exit(cleanup_tsunami_flash); diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c new file mode 100644 index 00000000000..811d92e5f5b --- /dev/null +++ b/drivers/mtd/maps/uclinux.c @@ -0,0 +1,127 @@ +/****************************************************************************/ + +/* + * uclinux.c -- generic memory mapped MTD driver for uclinux + * + * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com) + * + * $Id: uclinux.c,v 1.10 2005/01/05 18:05:13 dwmw2 Exp $ + */ + +/****************************************************************************/ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/fs.h> +#include <linux/major.h> +#include <linux/root_dev.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <asm/io.h> + +/****************************************************************************/ + + +/****************************************************************************/ + +struct map_info uclinux_ram_map = { + .name = "RAM", +}; + +struct mtd_info *uclinux_ram_mtdinfo; + +/****************************************************************************/ + +struct mtd_partition uclinux_romfs[] = { + { .name = "ROMfs" } +}; + +#define NUM_PARTITIONS (sizeof(uclinux_romfs) / sizeof(uclinux_romfs[0])) + +/****************************************************************************/ + +int uclinux_point(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char **mtdbuf) +{ + struct map_info *map = mtd->priv; + *mtdbuf = (u_char *) (map->virt + ((int) from)); + *retlen = len; + return(0); +} + +/****************************************************************************/ + +int __init uclinux_mtd_init(void) +{ + struct mtd_info *mtd; + struct map_info *mapp; + extern char _ebss; + + mapp = &uclinux_ram_map; + mapp->phys = (unsigned long) &_ebss; + mapp->size = PAGE_ALIGN(*((unsigned long *)((&_ebss) + 8))); + mapp->bankwidth = 4; + + printk("uclinux[mtd]: RAM probe address=0x%x size=0x%x\n", + (int) mapp->map_priv_2, (int) mapp->size); + + mapp->virt = ioremap_nocache(mapp->phys, mapp->size); + + if (mapp->virt == 0) { + printk("uclinux[mtd]: ioremap_nocache() failed\n"); + return(-EIO); + } + + simple_map_init(mapp); + + mtd = do_map_probe("map_ram", mapp); + if (!mtd) { + printk("uclinux[mtd]: failed to find a mapping?\n"); + iounmap(mapp->virt); + return(-ENXIO); + } + + mtd->owner = THIS_MODULE; + mtd->point = uclinux_point; + mtd->priv = mapp; + + uclinux_ram_mtdinfo = mtd; + add_mtd_partitions(mtd, uclinux_romfs, NUM_PARTITIONS); + + printk("uclinux[mtd]: set %s to be root filesystem\n", + uclinux_romfs[0].name); + ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 0); + put_mtd_device(mtd); + + return(0); +} + +/****************************************************************************/ + +void __exit uclinux_mtd_cleanup(void) +{ + if (uclinux_ram_mtdinfo) { + del_mtd_partitions(uclinux_ram_mtdinfo); + map_destroy(uclinux_ram_mtdinfo); + uclinux_ram_mtdinfo = NULL; + } + if (uclinux_ram_map.map_priv_1) { + iounmap((void *) uclinux_ram_map.virt); + uclinux_ram_map.virt = 0; + } +} + +/****************************************************************************/ + +module_init(uclinux_mtd_init); +module_exit(uclinux_mtd_cleanup); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>"); +MODULE_DESCRIPTION("Generic RAM based MTD for uClinux"); + +/****************************************************************************/ diff --git a/drivers/mtd/maps/vmax301.c b/drivers/mtd/maps/vmax301.c new file mode 100644 index 00000000000..c8c74110ed1 --- /dev/null +++ b/drivers/mtd/maps/vmax301.c @@ -0,0 +1,198 @@ +// $Id: vmax301.c,v 1.30 2004/07/12 22:38:29 dwmw2 Exp $ +/* ###################################################################### + + Tempustech VMAX SBC301 MTD Driver. + + The VMAx 301 is a SBC based on . It + comes with three builtin AMD 29F016B flash chips and a socket for SRAM or + more flash. Each unit has it's own 8k mapping into a settable region + (0xD8000). There are two 8k mappings for each MTD, the first is always set + to the lower 8k of the device the second is paged. Writing a 16 bit page + value to anywhere in the first 8k will cause the second 8k to page around. + + To boot the device a bios extension must be installed into the first 8k + of flash that is smart enough to copy itself down, page in the rest of + itself and begin executing. + + ##################################################################### */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <asm/io.h> + +#include <linux/mtd/map.h> +#include <linux/mtd/mtd.h> + + +#define WINDOW_START 0xd8000 +#define WINDOW_LENGTH 0x2000 +#define WINDOW_SHIFT 25 +#define WINDOW_MASK 0x1FFF + +/* Actually we could use two spinlocks, but we'd have to have + more private space in the struct map_info. We lose a little + performance like this, but we'd probably lose more by having + the extra indirection from having one of the map->map_priv + fields pointing to yet another private struct. +*/ +static DEFINE_SPINLOCK(vmax301_spin); + +static void __vmax301_page(struct map_info *map, unsigned long page) +{ + writew(page, map->map_priv_2 - WINDOW_LENGTH); + map->map_priv_1 = page; +} + +static inline void vmax301_page(struct map_info *map, + unsigned long ofs) +{ + unsigned long page = (ofs >> WINDOW_SHIFT); + if (map->map_priv_1 != page) + __vmax301_page(map, page); +} + +static map_word vmax301_read8(struct map_info *map, unsigned long ofs) +{ + map_word ret; + spin_lock(&vmax301_spin); + vmax301_page(map, ofs); + ret.x[0] = readb(map->map_priv_2 + (ofs & WINDOW_MASK)); + spin_unlock(&vmax301_spin); + return ret; +} + +static void vmax301_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (from & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(from & WINDOW_MASK); + spin_lock(&vmax301_spin); + vmax301_page(map, from); + memcpy_fromio(to, map->map_priv_2 + from, thislen); + spin_unlock(&vmax301_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static void vmax301_write8(struct map_info *map, map_word d, unsigned long adr) +{ + spin_lock(&vmax301_spin); + vmax301_page(map, adr); + writeb(d.x[0], map->map_priv_2 + (adr & WINDOW_MASK)); + spin_unlock(&vmax301_spin); +} + +static void vmax301_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + while(len) { + unsigned long thislen = len; + if (len > (WINDOW_LENGTH - (to & WINDOW_MASK))) + thislen = WINDOW_LENGTH-(to & WINDOW_MASK); + + spin_lock(&vmax301_spin); + vmax301_page(map, to); + memcpy_toio(map->map_priv_2 + to, from, thislen); + spin_unlock(&vmax301_spin); + to += thislen; + from += thislen; + len -= thislen; + } +} + +static struct map_info vmax_map[2] = { + { + .name = "VMAX301 Internal Flash", + .phys = NO_XIP, + .size = 3*2*1024*1024, + .bankwidth = 1, + .read = vmax301_read8, + .copy_from = vmax301_copy_from, + .write = vmax301_write8, + .copy_to = vmax301_copy_to, + .map_priv_1 = WINDOW_START + WINDOW_LENGTH, + .map_priv_2 = 0xFFFFFFFF + }, + { + .name = "VMAX301 Socket", + .phys = NO_XIP, + .size = 0, + .bankwidth = 1, + .read = vmax301_read8, + .copy_from = vmax301_copy_from, + .write = vmax301_write8, + .copy_to = vmax301_copy_to, + .map_priv_1 = WINDOW_START + (3*WINDOW_LENGTH), + .map_priv_2 = 0xFFFFFFFF + } +}; + +static struct mtd_info *vmax_mtd[2] = {NULL, NULL}; + +static void __exit cleanup_vmax301(void) +{ + int i; + + for (i=0; i<2; i++) { + if (vmax_mtd[i]) { + del_mtd_device(vmax_mtd[i]); + map_destroy(vmax_mtd[i]); + } + } + iounmap((void *)vmax_map[0].map_priv_1 - WINDOW_START); +} + +int __init init_vmax301(void) +{ + int i; + unsigned long iomapadr; + // Print out our little header.. + printk("Tempustech VMAX 301 MEM:0x%x-0x%x\n",WINDOW_START, + WINDOW_START+4*WINDOW_LENGTH); + + iomapadr = (unsigned long)ioremap(WINDOW_START, WINDOW_LENGTH*4); + if (!iomapadr) { + printk("Failed to ioremap memory region\n"); + return -EIO; + } + /* Put the address in the map's private data area. + We store the actual MTD IO address rather than the + address of the first half, because it's used more + often. + */ + vmax_map[0].map_priv_2 = iomapadr + WINDOW_START; + vmax_map[1].map_priv_2 = iomapadr + (3*WINDOW_START); + + for (i=0; i<2; i++) { + vmax_mtd[i] = do_map_probe("cfi_probe", &vmax_map[i]); + if (!vmax_mtd[i]) + vmax_mtd[i] = do_map_probe("jedec", &vmax_map[i]); + if (!vmax_mtd[i]) + vmax_mtd[i] = do_map_probe("map_ram", &vmax_map[i]); + if (!vmax_mtd[i]) + vmax_mtd[i] = do_map_probe("map_rom", &vmax_map[i]); + if (vmax_mtd[i]) { + vmax_mtd[i]->owner = THIS_MODULE; + add_mtd_device(vmax_mtd[i]); + } + } + + if (!vmax_mtd[1] && !vmax_mtd[2]) { + iounmap((void *)iomapadr); + return -ENXIO; + } + + return 0; +} + +module_init(init_vmax301); +module_exit(cleanup_vmax301); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); +MODULE_DESCRIPTION("MTD map driver for Tempustech VMAX SBC301 board"); diff --git a/drivers/mtd/maps/walnut.c b/drivers/mtd/maps/walnut.c new file mode 100644 index 00000000000..d6137b1b567 --- /dev/null +++ b/drivers/mtd/maps/walnut.c @@ -0,0 +1,122 @@ +/* + * $Id: walnut.c,v 1.2 2004/12/10 12:07:42 holindho Exp $ + * + * Mapping for Walnut flash + * (used ebony.c as a "framework") + * + * Heikki Lindholm <holindho@infradead.org> + * + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> +#include <linux/version.h> +#include <asm/io.h> +#include <asm/ibm4xx.h> +#include <platforms/4xx/walnut.h> + +/* these should be in platforms/4xx/walnut.h ? */ +#define WALNUT_FLASH_ONBD_N(x) (x & 0x02) +#define WALNUT_FLASH_SRAM_SEL(x) (x & 0x01) +#define WALNUT_FLASH_LOW 0xFFF00000 +#define WALNUT_FLASH_HIGH 0xFFF80000 +#define WALNUT_FLASH_SIZE 0x80000 + +static struct mtd_info *flash; + +static struct map_info walnut_map = { + .name = "Walnut flash", + .size = WALNUT_FLASH_SIZE, + .bankwidth = 1, +}; + +/* Actually, OpenBIOS is the last 128 KiB of the flash - better + * partitioning could be made */ +static struct mtd_partition walnut_partitions[] = { + { + .name = "OpenBIOS", + .offset = 0x0, + .size = WALNUT_FLASH_SIZE, + /*.mask_flags = MTD_WRITEABLE, */ /* force read-only */ + } +}; + +int __init init_walnut(void) +{ + u8 fpga_brds1; + void *fpga_brds1_adr; + void *fpga_status_adr; + unsigned long flash_base; + + /* this should already be mapped (platform/4xx/walnut.c) */ + fpga_status_adr = ioremap(WALNUT_FPGA_BASE, 8); + if (!fpga_status_adr) + return -ENOMEM; + + fpga_brds1_adr = fpga_status_adr+5; + fpga_brds1 = readb(fpga_brds1_adr); + /* iounmap(fpga_status_adr); */ + + if (WALNUT_FLASH_ONBD_N(fpga_brds1)) { + printk("The on-board flash is disabled (U79 sw 5)!"); + return -EIO; + } + if (WALNUT_FLASH_SRAM_SEL(fpga_brds1)) + flash_base = WALNUT_FLASH_LOW; + else + flash_base = WALNUT_FLASH_HIGH; + + walnut_map.phys = flash_base; + walnut_map.virt = + (void __iomem *)ioremap(flash_base, walnut_map.size); + + if (!walnut_map.virt) { + printk("Failed to ioremap flash.\n"); + return -EIO; + } + + simple_map_init(&walnut_map); + + flash = do_map_probe("jedec_probe", &walnut_map); + if (flash) { + flash->owner = THIS_MODULE; + add_mtd_partitions(flash, walnut_partitions, + ARRAY_SIZE(walnut_partitions)); + } else { + printk("map probe failed for flash\n"); + return -ENXIO; + } + + return 0; +} + +static void __exit cleanup_walnut(void) +{ + if (flash) { + del_mtd_partitions(flash); + map_destroy(flash); + } + + if (walnut_map.virt) { + iounmap((void *)walnut_map.virt); + walnut_map.virt = 0; + } +} + +module_init(init_walnut); +module_exit(cleanup_walnut); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Heikki Lindholm <holindho@infradead.org>"); +MODULE_DESCRIPTION("MTD map and partitions for IBM 405GP Walnut boards"); diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c new file mode 100644 index 00000000000..82b887b0570 --- /dev/null +++ b/drivers/mtd/maps/wr_sbc82xx_flash.c @@ -0,0 +1,181 @@ +/* + * $Id: wr_sbc82xx_flash.c,v 1.7 2004/11/04 13:24:15 gleixner Exp $ + * + * Map for flash chips on Wind River PowerQUICC II SBC82xx board. + * + * Copyright (C) 2004 Red Hat, Inc. + * + * Author: David Woodhouse <dwmw2@infradead.org> + * + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/config.h> +#include <linux/mtd/partitions.h> + +#include <asm/immap_cpm2.h> + +static struct mtd_info *sbcmtd[3]; +static struct mtd_partition *sbcmtd_parts[3]; + +struct map_info sbc82xx_flash_map[3] = { + {.name = "Boot flash"}, + {.name = "Alternate boot flash"}, + {.name = "User flash"} +}; + +static struct mtd_partition smallflash_parts[] = { + { + .name = "space", + .size = 0x100000, + .offset = 0, + }, { + .name = "bootloader", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static struct mtd_partition bigflash_parts[] = { + { + .name = "bootloader", + .size = 0x00100000, + .offset = 0, + }, { + .name = "file system", + .size = 0x01f00000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "boot config", + .size = 0x00100000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "space", + .size = 0x01f00000, + .offset = MTDPART_OFS_APPEND, + } +}; + +static const char *part_probes[] __initdata = {"cmdlinepart", "RedBoot", NULL}; + +#define init_sbc82xx_one_flash(map, br, or) \ +do { \ + (map).phys = (br & 1) ? (br & 0xffff8000) : 0; \ + (map).size = (br & 1) ? (~(or & 0xffff8000) + 1) : 0; \ + switch (br & 0x00001800) { \ + case 0x00000000: \ + case 0x00000800: (map).bankwidth = 1; break; \ + case 0x00001000: (map).bankwidth = 2; break; \ + case 0x00001800: (map).bankwidth = 4; break; \ + } \ +} while (0); + +int __init init_sbc82xx_flash(void) +{ + volatile memctl_cpm2_t *mc = &cpm2_immr->im_memctl; + int bigflash; + int i; + +#ifdef CONFIG_SBC8560 + mc = ioremap(0xff700000 + 0x5000, sizeof(memctl_cpm2_t)); +#else + mc = &cpm2_immr->im_memctl; +#endif + + bigflash = 1; + if ((mc->memc_br0 & 0x00001800) == 0x00001800) + bigflash = 0; + + init_sbc82xx_one_flash(sbc82xx_flash_map[0], mc->memc_br0, mc->memc_or0); + init_sbc82xx_one_flash(sbc82xx_flash_map[1], mc->memc_br6, mc->memc_or6); + init_sbc82xx_one_flash(sbc82xx_flash_map[2], mc->memc_br1, mc->memc_or1); + +#ifdef CONFIG_SBC8560 + iounmap((void *) mc); +#endif + + for (i=0; i<3; i++) { + int8_t flashcs[3] = { 0, 6, 1 }; + int nr_parts; + + printk(KERN_NOTICE "PowerQUICC II %s (%ld MiB on CS%d", + sbc82xx_flash_map[i].name, + (sbc82xx_flash_map[i].size >> 20), + flashcs[i]); + if (!sbc82xx_flash_map[i].phys) { + /* We know it can't be at zero. */ + printk("): disabled by bootloader.\n"); + continue; + } + printk(" at %08lx)\n", sbc82xx_flash_map[i].phys); + + sbc82xx_flash_map[i].virt = ioremap(sbc82xx_flash_map[i].phys, sbc82xx_flash_map[i].size); + + if (!sbc82xx_flash_map[i].virt) { + printk("Failed to ioremap\n"); + continue; + } + + simple_map_init(&sbc82xx_flash_map[i]); + + sbcmtd[i] = do_map_probe("cfi_probe", &sbc82xx_flash_map[i]); + + if (!sbcmtd[i]) + continue; + + sbcmtd[i]->owner = THIS_MODULE; + + nr_parts = parse_mtd_partitions(sbcmtd[i], part_probes, + &sbcmtd_parts[i], 0); + if (nr_parts > 0) { + add_mtd_partitions (sbcmtd[i], sbcmtd_parts[i], nr_parts); + continue; + } + + /* No partitioning detected. Use default */ + if (i == 2) { + add_mtd_device(sbcmtd[i]); + } else if (i == bigflash) { + add_mtd_partitions (sbcmtd[i], bigflash_parts, ARRAY_SIZE(bigflash_parts)); + } else { + add_mtd_partitions (sbcmtd[i], smallflash_parts, ARRAY_SIZE(smallflash_parts)); + } + } + return 0; +} + +static void __exit cleanup_sbc82xx_flash(void) +{ + int i; + + for (i=0; i<3; i++) { + if (!sbcmtd[i]) + continue; + + if (i<2 || sbcmtd_parts[i]) + del_mtd_partitions(sbcmtd[i]); + else + del_mtd_device(sbcmtd[i]); + + kfree(sbcmtd_parts[i]); + map_destroy(sbcmtd[i]); + + iounmap((void *)sbc82xx_flash_map[i].virt); + sbc82xx_flash_map[i].virt = 0; + } +} + +module_init(init_sbc82xx_flash); +module_exit(cleanup_sbc82xx_flash); + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); +MODULE_DESCRIPTION("Flash map driver for WindRiver PowerQUICC II"); |