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path: root/drivers/mtd/nand
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2008-02-07[MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support.Scott Wood
Signed-off-by: Nick Spence <nick.spence@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-03[MTD] [NAND] Fix misparenthesization introduced by commit 78b65179...Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-03[MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytesBryan Wu
Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-03[MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driverBryan Wu
There is no suspend/resume operation in NFC driver at all, currently. Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-03[MTD] [NAND] Remove unused variable in plat_nand_removeLi Zefan
With CONFIG_MTD_PARTITIONS not set, got this: drivers/mtd/nand/plat_nand.c:113: warning: unused variable 'pdata' Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-03[MTD] [NAND] at91_nand: Make mtdparts option can override board infoAtsushi Nemoto
Call parse_mtd_partitions before checking board's partition_info, so that "mtdparts=" option can override board's default setting. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-01-26[MTD] [NAND] fix s3c2410 error correctionMatt Reimer
The single-bit error correction was, well, incorrect. For determing which bit to correct it was using P1' P2' P4' P8' instead of P1 P2 P4 P8, and it was using P16' P32' P64' P128' P256' P512' P1024' P2048' instead of P16 P32 P64 P128 P256 P512 P1024 P2048. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-01-12[MTD] [NAND] make s3c2410 indicate an error for multi-bit read errorsMatt Reimer
If there were multiple bit errors in the data s3c2410_nand_correct_data() was returning 0 (no error) instead of -1, so the upper layers (like JFFS2) would not know the data is corrupt. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-01-08[MTD] [NAND] Don't panic if a controller driver does ecc its own way.Scott Wood
Some hardware, such as the enhanced local bus controller used on some mpc83xx chips, does ecc transparently when reading and writing data, rather than providing a generic calculate/correct mechanism that can be exported to the nand subsystem. The subsystem should not BUG() when calculate, correct, or hwctl are missing, if the methods that call them have been overridden. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-12-03[MTD] [NAND] Marvell Orion device bus NAND controllerTzachi Perelstein
Driver for the device bus NAND controller in the Marvell Orion family of ARM SoCs. Signed-off-by: Tzachi Perelstein <tzachi@marvell.com> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Acked-by: Jörn Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-11-29[MTD] [NAND] pasemi_nand driverEgor Martovetsky
Plumbing for NAND connected via localbus on PA Semi PWRficient-based boards. From: Egor Martovetsky <egor@pasemi.com> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-11-28[MTD] [NAND] S3C2410 correctly set nFCE over resumeBen Dooks
Ensure the nFCE line is de-asserted over suspend and then re-initialised when the system resumes. This is to ensure that the NAND is kept in lowest power mode over suspend (power settings are only specified for nFCE inactive) as well as fixing the Simtec Osiris which relies on nFCE being inactive. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-30[MTD] [NAND] Add Blackfin BF52x support in bf5xx_nand driverMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-28[MTD] [NAND] Check for RedBoot partitions on CAFÉ NANDDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] Replace -1 with -EBADMSG in nand error correction codeJörn Engel
Magic numerical values are just bad style. Particularly so when undocumented. Signed-off-by: Jörn Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] treat any negative return value from correct() as an errorMatt Reimer
Treat any negative return value from a NAND driver's correct() function as a failure, rather than just -1. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] nandsim: bugfix in initializationArtem Bityutskiy
NAND of > 32MiB in size use 4 bytes in address cycle, not 3. Reported-by: bhsong <bhsong@augustatek.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] Fix typo in Alauda config option help text.Dave Jones
Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] add s3c2440-specific read_buf/write_bufMatt Reimer
Add read_buf/write_buf for s3c2440, which can read/write 32 bits at a time rather than just 8. In my testing on an s3c2440a running at 400 MHz with a 100 MHz HCLK, read performance improves by 36% (from 5.19 MB/s to 7.07 MB/s). Signed-off-by: Matt Reimer <mreimer@vpop.net> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-18Add missing newlines to some uses of dev_<level> messagesJoe Perches
Found these while looking at printk uses. Add missing newlines to dev_<level> uses Add missing KERN_<level> prefixes to multiline dev_<level>s Fixed a wierd->weird spelling typo Added a newline to a printk Signed-off-by: Joe Perches <joe@perches.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: Tilman Schmidt <tilman@imap.cc> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: James Smart <James.Smart@Emulex.Com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14signedness: module_param_array nump argumentAl Viro
... should be unsigned int Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-13[MTD] [NAND] Blackfin on-chip NAND Flash Controller driverBryan Wu
This is the driver for latest Blackfin on-chip nand flash controller - use nand_chip and mtd_info common nand driver interface - provide both PIO and dma operation - compiled with ezkit bf548 configuration - use hardware 1-bit ECC - tested with YAFFS2 and can mount YAFFS2 filesystem as rootfs ChangeLog from try#1 - use hweight32() instead of count_bits() - replace bf54x with bf5xx and BF54X with BF5XX - compare against plat->page_size in 2 cases when enable hardware ECC ChangeLog from try#2 - passed nand_test suites - use cpu_relax() instead of busy wait loop - some coding style issue pointed out by Andrew Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-13[MTD] [NAND] Fix compiler warning in Alauda driverakpm@linux-foundation.org
drivers/mtd/nand/alauda.c: In function 'alauda_bounce_read': drivers/mtd/nand/alauda.c:412: warning: comparison of distinct pointer types lacks a cast Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06[MTD] [NAND] Avoid deadlock in erase callback; release chip lock first.David Woodhouse
When the erase callback performs some other action on the flash, it's highly likely to deadlock unless we actually release the chip lock before calling it. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06[MTD] [NAND] Resume method for CAFÉ NAND controllerDavid Woodhouse
Originally from Marcelo; modified to put the original timing registers back instead of 0xFFFFFFFF. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06[MTD] [NAND] Fix PCI ident table for CAFÉ NAND controller.David Woodhouse
It was only the very early prototypes which made the mistake of using the same device ident for all three functions on the device -- don't bother trying to express that in the PCI match table, since the tools don't cope. We can check in the probe routine instead, just in case. Also remember to terminate the table. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-09-25[MTD] [NAND] s3c2410: fix arch movesBen Dooks
Fixup the includes which have been moved around when changing the s3c24xx arch support. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-09-06[MTD] [NAND] nandsim: avoid deadlocking FSArtem Bityutskiy
Make nandsim use GFP_NOFS when allocating memory, because it might be used by a file-system (e.g. UBIFS2) which means, if we are short of memory, we may deadlock. Indee, UBIFS is holding a lock, writes to the media, reaches this place in NANDsim, kmalloc does not find the requested amount of RAM, calls memory shrinker, which decides to writeback inodes, calls FS, and it deadlocks on the lock which is already being held. Below is the UBIFS backtrace which demonstrates that: [<c03717dc>] __mutex_lock_slowpath+0xc8/0x2e6 [<c0371a16>] mutex_lock+0x1c/0x1f [<f8b9d076>] reserve_space+0x3d/0xa9 [ubifs] [<f8b9d1bd>] make_one_reservation+0x2b/0x86 [ubifs] [<f8b9d3fc>] ubifs_jrn_write_block+0xda/0x12f [ubifs] [<f8b9ff3a>] ubifs_writepage+0x11d/0x1ec [ubifs] [<c015d6ab>] shrink_inactive_list+0x7fa/0x969 [<c015d8c8>] shrink_zone+0xae/0x10c [<c015e3b4>] try_to_free_pages+0x159/0x251 [<c015980a>] __alloc_pages+0x125/0x2f0 [<c016ff6a>] cache_alloc_refill+0x380/0x6ba [<c01703f3>] __kmalloc+0x14f/0x157 [<f885722a>] do_state_action+0xab7/0xc74 [nandsim] [<f885760c>] switch_state+0x225/0x402 [nandsim] [<f8857e7e>] ns_hwcontrol+0x3e2/0x620 [nandsim] [<f8862f53>] nand_command+0x2e/0x1a5 [nand] [<f8861ad8>] nand_write_page+0x4a/0x9a [nand] [<f88617b4>] nand_do_write_ops+0x1cf/0x343 [nand] [<f8861a70>] nand_write+0x88/0xa6 [nand] [<f8850b0e>] part_write+0x72/0x8b [mtd] [<f88e19c5>] ubi_io_write+0x189/0x29c [ubi] [<f88dfb98>] ubi_eba_write_leb+0xb6/0x699 [ubi] [<f88def93>] ubi_leb_write+0xe4/0xe9 [ubi] [<f8ba3b82>] ubifs_wbuf_write_nolock+0x333/0x4c9 [ubifs] [<f8b9d28c>] write_node+0x74/0x8e [ubifs] [<f8b9d422>] ubifs_jrn_write_block+0x100/0x12f [ubifs] [<f8b9ff3a>] ubifs_writepage+0x11d/0x1ec [ubifs] [<c0159e5b>] __writepage+0xb/0x26 [<c015a318>] write_cache_pages+0x203/0x2d9 [<c015a411>] generic_writepages+0x23/0x2d [<c015a452>] do_writepages+0x37/0x39 [<c018e24a>] __writeback_single_inode+0x96/0x399 [<c018e903>] sync_sb_inodes+0x1a3/0x274 [<c018ebf3>] writeback_inodes+0xa6/0xd8 [<c015a9dd>] background_writeout+0x86/0x9e [<c015ae9c>] pdflush+0xfb/0x1b6 [<c01387d7>] kthread+0x37/0x59 [<c0104dc3>] kernel_thread_helper+0x7/0x14 The deadlock is funny because it starts in pdflush/writeback, and comes back to writeback, then deadlocks. It seems we should look carefully for other places in UBI and MTD and use GFP_NOFS instead of GFP_KERNEL. Caught-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-29[MTD] [NAND] Driver for Olympus MAUSB-10 and Fujifilm DPC-R1 card readersJörn Engel
Unlike most stuff on the market the chip inside these two allows raw flash access and doesn't implement and FTL, leaving that functionality to the device driver. Raw flash access in a cheap USB cardreader! An MTD test device one can attach to a PC! What a deal! The command set of the chip is not documented, so information was obtained from the existing mass-storage driver (drivers/usb/storage/alauda.c), its documentation (http://alauda.sourceforge.net/wikka.php?wakka=BulkCommandReference), additional reverse engineering and comparison with a vendor driver for a related chip (http://www.ratocsystems.com/english/download/driver/linux/sma03u.html). Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-23Merge branch 'mtd-2.6.24' of ↵David Woodhouse
master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
2007-08-22[MTD] 4xx: Don't build arch/ppc dependent drivers in arch/powerpcJosh Boyer
These drivers are specific to 4xx support in arch/ppc at the moment. Make sure they don't get built on arch/powerpc. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-02[MTD] [NAND] nand_base.c: fix type of eccpos pointerBen Dooks
The nand_base.c driver implicitly casts the uint32_t eccpos array to 'int *', which is not only not guaranteed to be the same sign as the source, but is not guaranteed to be the same size. Fix by changing nand_base.c to use uint32_t referencing the eccpos fields. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-02[MTD] [NAND] at91_nand rdy_pin fixIvan Kuten
The patch below fixes nand driver for AT91 boards which do not have NAND R/B signal connected to gpio (rdy_pin is not connected). Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-02[MTD] [NAND] fix race in nand_base.cArtem Bityutskiy
When we mark block bad we have to get chip because this involves writing to the page's OOB. We hit this bug in UBI - we observed random obscure crashes when it marks block bad from the background thread and there is some parallel task which utilizes flash. This patch also adds a TODO note about BBT table protection which it seems does not exist. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-02[MTD] [NAND] Fix refactoring of EDB7312 hwcontrol function.Roland Stigge
The patch ensures that the current code (kernel 2.6.22) uses the bits like the code prior to the refactoring. The variable "bits" is employed in a useful way now. Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-01Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2007-08-01[MTD] [NAND] nand_base.c fix broken linkmaximilian attems
replace with working link from nand Kconfig help text fixes bugzilla 7815 Signed-off-by: maximilian attems <max@stro.at> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-31[MIPS] Remove Momentum Ocelot support.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-23[MTD] [NAND] fix race in nand_base.cArtem Bityutskiy
When we mark block bad we have to get chip because this involves writing to the page's OOB. We hit this bug in UBI - we observed random obscure crashes when it marks block bad from the background thread and there is some parallel task which utilizes flash. This patch also adds a TODO note about BBT table protection which it seems does not exist. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23[MTD] [NAND] Fix refactoring of EDB7312 hwcontrol function.Roland Stigge
The patch ensures that the current code (kernel 2.6.22) uses the bits like the code prior to the refactoring. The variable "bits" is employed in a useful way now. Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23[MTD] Clean up duplicate includes in drivers/mtd/Jesper Juhl
This patch cleans up duplicate includes in drivers/mtd/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-23[MTD] [NAND] Add NAND manufacturer AMD.Steven J. Hill
This patch adds the manufacturer ID for AMD flash. Signed-off-by: Steven J. Hill <sjhill1@rockwellcollins.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-11[MTD] Remove Ocelot G support from DiskOnChip drivers.Yoichi Yuasa
This patch has removed Ocelot G support from MTD. Ocelot G support has already removed since May 2007. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-11Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2007-07-10[MIPS] Remove Momenco Ocelot C supportFranck Bui-Huu
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> delete mode 100644 arch/mips/configs/ocelot_c_defconfig delete mode 100644 arch/mips/momentum/ocelot_c/Makefile delete mode 100644 arch/mips/momentum/ocelot_c/cpci-irq.c delete mode 100644 arch/mips/momentum/ocelot_c/dbg_io.c delete mode 100644 arch/mips/momentum/ocelot_c/irq.c delete mode 100644 arch/mips/momentum/ocelot_c/ocelot_c_fpga.h delete mode 100644 arch/mips/momentum/ocelot_c/platform.c delete mode 100644 arch/mips/momentum/ocelot_c/prom.c delete mode 100644 arch/mips/momentum/ocelot_c/reset.c delete mode 100644 arch/mips/momentum/ocelot_c/setup.c delete mode 100644 arch/mips/momentum/ocelot_c/uart-irq.c delete mode 100644 arch/mips/pci/fixup-ocelot-c.c delete mode 100644 arch/mips/pci/pci-ocelot-c.c
2007-06-29[MTD] [NAND] cafe_nand.c: the OLPC laptop is not available for $100Adrian Bunk
The price might drop to $100 in a few years. But currently, a more reasonable name might be "$175 laptop". Let's simply call it "OLPC laptop" without any price tag. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] [NAND] Change NDFC driver to support 405 platforms tooStefan Roese
This patch adds 405 platform support to the 440 NDFC driver. The new AMCC 405EZ PPC is equipped with the same NDFC core as the 440EP(x) and other will follow soon. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] [NAND] nand_base.c: fix type of eccpos pointerBen Dooks
The nand_base.c driver implicitly casts the uint32_t eccpos array to 'int *', which is not only not guaranteed to be the same sign as the source, but is not guaranteed to be the same size. Fix by changing nand_base.c to use uint32_t referencing the eccpos fields. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] [NAND] at91_nand rdy_pin fixIvan Kuten
The patch below fixes nand driver for AT91 boards which do not have NAND R/B signal connected to gpio (rdy_pin is not connected). Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-01parse errors in ifdefsYoann Padioleau
Fix various bits of obviously-busted code which we're not happening to compile, due to ifdefs. Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Jan Kara <jack@ucw.cz> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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