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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/mtd/devices/Kconfig
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!
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+# drivers/mtd/maps/Kconfig
+# $Id: Kconfig,v 1.15 2004/12/22 17:51:15 joern Exp $
+
+menu "Self-contained MTD device drivers"
+ depends on MTD!=n
+
+config MTD_PMC551
+ tristate "Ramix PMC551 PCI Mezzanine RAM card support"
+ depends on MTD && PCI
+ ---help---
+ This provides a MTD device driver for the Ramix PMC551 RAM PCI card
+ from Ramix Inc. <http://www.ramix.com/products/memory/pmc551.html>.
+ These devices come in memory configurations from 32M - 1G. If you
+ have one, you probably want to enable this.
+
+ If this driver is compiled as a module you get the ability to select
+ the size of the aperture window pointing into the devices memory.
+ What this means is that if you have a 1G card, normally the kernel
+ will use a 1G memory map as its view of the device. As a module,
+ you can select a 1M window into the memory and the driver will
+ "slide" the window around the PMC551's memory. This was
+ particularly useful on the 2.2 kernels on PPC architectures as there
+ was limited kernel space to deal with.
+
+config MTD_PMC551_BUGFIX
+ bool "PMC551 256M DRAM Bugfix"
+ depends on MTD_PMC551
+ help
+ Some of Ramix's PMC551 boards with 256M configurations have invalid
+ column and row mux values. This option will fix them, but will
+ break other memory configurations. If unsure say N.
+
+config MTD_PMC551_DEBUG
+ bool "PMC551 Debugging"
+ depends on MTD_PMC551
+ help
+ This option makes the PMC551 more verbose during its operation and
+ is only really useful if you are developing on this driver or
+ suspect a possible hardware or driver bug. If unsure say N.
+
+config MTD_MS02NV
+ tristate "DEC MS02-NV NVRAM module support"
+ depends on MTD && MACH_DECSTATION
+ help
+ This is an MTD driver for the DEC's MS02-NV (54-20948-01) battery
+ backed-up NVRAM module. The module was originally meant as an NFS
+ accelerator. Say Y here if you have a DECstation 5000/2x0 or a
+ DECsystem 5900 equipped with such a module.
+
+config MTD_SLRAM
+ tristate "Uncached system RAM"
+ depends on MTD
+ help
+ If your CPU cannot cache all of the physical memory in your machine,
+ you can still use it for storage or swap by using this driver to
+ present it to the system as a Memory Technology Device.
+
+config MTD_PHRAM
+ tristate "Physical system RAM"
+ depends on MTD
+ help
+ This is a re-implementation of the slram driver above.
+
+ Use this driver to access physical memory that the kernel proper
+ doesn't have access to, memory beyond the mem=xxx limit, nvram,
+ memory on the video card, etc...
+
+config MTD_LART
+ tristate "28F160xx flash driver for LART"
+ depends on SA1100_LART && MTD
+ help
+ This enables the flash driver for LART. Please note that you do
+ not need any mapping/chip driver for LART. This one does it all
+ for you, so go disable all of those if you enabled some of them (:
+
+config MTD_MTDRAM
+ tristate "Test driver using RAM"
+ depends on MTD
+ help
+ This enables a test MTD device driver which uses vmalloc() to
+ provide storage. You probably want to say 'N' unless you're
+ testing stuff.
+
+config MTDRAM_TOTAL_SIZE
+ int "MTDRAM device size in KiB"
+ depends on MTD_MTDRAM
+ default "4096"
+ help
+ This allows you to configure the total size of the MTD device
+ emulated by the MTDRAM driver. If the MTDRAM driver is built
+ as a module, it is also possible to specify this as a parameter when
+ loading the module.
+
+config MTDRAM_ERASE_SIZE
+ int "MTDRAM erase block size in KiB"
+ depends on MTD_MTDRAM
+ default "128"
+ help
+ This allows you to configure the size of the erase blocks in the
+ device emulated by the MTDRAM driver. If the MTDRAM driver is built
+ as a module, it is also possible to specify this as a parameter when
+ loading the module.
+
+#If not a module (I don't want to test it as a module)
+config MTDRAM_ABS_POS
+ hex "SRAM Hexadecimal Absolute position or 0"
+ depends on MTD_MTDRAM=y
+ default "0"
+ help
+ If you have system RAM accessible by the CPU but not used by Linux
+ in normal operation, you can give the physical address at which the
+ available RAM starts, and the MTDRAM driver will use it instead of
+ allocating space from Linux's available memory. Otherwise, leave
+ this set to zero. Most people will want to leave this as zero.
+
+config MTD_BLKMTD
+ tristate "MTD emulation using block device"
+ depends on MTD
+ help
+ This driver allows a block device to appear as an MTD. It would
+ generally be used in the following cases:
+
+ Using Compact Flash as an MTD, these usually present themselves to
+ the system as an ATA drive.
+ Testing MTD users (eg JFFS2) on large media and media that might
+ be removed during a write (using the floppy drive).
+
+config MTD_BLOCK2MTD
+ tristate "MTD using block device (rewrite)"
+ depends on MTD && EXPERIMENTAL
+ help
+ This driver is basically the same at MTD_BLKMTD above, but
+ experienced some interface changes plus serious speedups. In
+ the long term, it should replace MTD_BLKMTD. Right now, you
+ shouldn't entrust important data to it yet.
+
+comment "Disk-On-Chip Device Drivers"
+
+config MTD_DOC2000
+ tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
+ depends on MTD
+ select MTD_DOCPROBE
+ select MTD_NAND_IDS
+ ---help---
+ This provides an MTD device driver for the M-Systems DiskOnChip
+ 2000 and Millennium devices. Originally designed for the DiskOnChip
+ 2000, it also now includes support for the DiskOnChip Millennium.
+ If you have problems with this driver and the DiskOnChip Millennium,
+ you may wish to try the alternative Millennium driver below. To use
+ the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
+ in the <file:drivers/mtd/devices/docprobe.c> source code.
+
+ If you use this device, you probably also want to enable the NFTL
+ 'NAND Flash Translation Layer' option below, which is used to
+ emulate a block device by using a kind of file system on the flash
+ chips.
+
+ NOTE: This driver is deprecated and will probably be removed soon.
+ Please try the new DiskOnChip driver under "NAND Flash Device
+ Drivers".
+
+config MTD_DOC2001
+ tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
+ depends on MTD
+ select MTD_DOCPROBE
+ select MTD_NAND_IDS
+ ---help---
+ This provides an alternative MTD device driver for the M-Systems
+ DiskOnChip Millennium devices. Use this if you have problems with
+ the combined DiskOnChip 2000 and Millennium driver above. To get
+ the DiskOnChip probe code to load and use this driver instead of
+ the other one, you will need to undefine DOC_SINGLE_DRIVER near
+ the beginning of <file:drivers/mtd/devices/docprobe.c>.
+
+ If you use this device, you probably also want to enable the NFTL
+ 'NAND Flash Translation Layer' option below, which is used to
+ emulate a block device by using a kind of file system on the flash
+ chips.
+
+ NOTE: This driver is deprecated and will probably be removed soon.
+ Please try the new DiskOnChip driver under "NAND Flash Device
+ Drivers".
+
+config MTD_DOC2001PLUS
+ tristate "M-Systems Disk-On-Chip Millennium Plus"
+ depends on MTD
+ select MTD_DOCPROBE
+ select MTD_NAND_IDS
+ ---help---
+ This provides an MTD device driver for the M-Systems DiskOnChip
+ Millennium Plus devices.
+
+ If you use this device, you probably also want to enable the INFTL
+ 'Inverse NAND Flash Translation Layer' option below, which is used
+ to emulate a block device by using a kind of file system on the
+ flash chips.
+
+ NOTE: This driver will soon be replaced by the new DiskOnChip driver
+ under "NAND Flash Device Drivers" (currently that driver does not
+ support all Millennium Plus devices).
+
+config MTD_DOCPROBE
+ tristate
+ select MTD_DOCECC
+
+config MTD_DOCECC
+ tristate
+
+config MTD_DOCPROBE_ADVANCED
+ bool "Advanced detection options for DiskOnChip"
+ depends on MTD_DOCPROBE
+ help
+ This option allows you to specify nonstandard address at which to
+ probe for a DiskOnChip, or to change the detection options. You
+ are unlikely to need any of this unless you are using LinuxBIOS.
+ Say 'N'.
+
+config MTD_DOCPROBE_ADDRESS
+ hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
+ depends on MTD_DOCPROBE
+ default "0x0000" if MTD_DOCPROBE_ADVANCED
+ default "0" if !MTD_DOCPROBE_ADVANCED
+ ---help---
+ By default, the probe for DiskOnChip devices will look for a
+ DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
+ This option allows you to specify a single address at which to probe
+ for the device, which is useful if you have other devices in that
+ range which get upset when they are probed.
+
+ (Note that on PowerPC, the normal probe will only check at
+ 0xE4000000.)
+
+ Normally, you should leave this set to zero, to allow the probe at
+ the normal addresses.
+
+config MTD_DOCPROBE_HIGH
+ bool "Probe high addresses"
+ depends on MTD_DOCPROBE_ADVANCED
+ help
+ By default, the probe for DiskOnChip devices will look for a
+ DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
+ This option changes to make it probe between 0xFFFC8000 and
+ 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
+ useful to you. Say 'N'.
+
+config MTD_DOCPROBE_55AA
+ bool "Probe for 0x55 0xAA BIOS Extension Signature"
+ depends on MTD_DOCPROBE_ADVANCED
+ help
+ Check for the 0x55 0xAA signature of a DiskOnChip, and do not
+ continue with probing if it is absent. The signature will always be
+ present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
+ Only if you have overwritten the first block of a DiskOnChip
+ Millennium will it be absent. Enable this option if you are using
+ LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
+ you have managed to wipe the first block.
+
+endmenu
+