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path: root/drivers/mtd/nand/nand_ecc.c (follow)
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2009-12-16Merge git://git.infradead.org/mtd-2.6Linus Torvalds1-5/+20
* git://git.infradead.org/mtd-2.6: (90 commits) jffs2: Fix long-standing bug with symlink garbage collection. mtd: OneNAND: Fix test of unsigned in onenand_otp_walk() mtd: cfi_cmdset_0002, fix lock imbalance Revert "mtd: move mxcnd_remove to .exit.text" mtd: m25p80: add support for Macronix MX25L4005A kmsg_dump: fix build for CONFIG_PRINTK=n mtd: nandsim: add support for 4KiB pages mtd: mtdoops: refactor as a kmsg_dumper mtd: mtdoops: make record size configurable mtd: mtdoops: limit the maximum mtd partition size mtd: mtdoops: keep track of used/unused pages in an array mtd: mtdoops: several minor cleanups core: Add kernel message dumper to call on oopses and panics mtd: add ARM pismo support mtd: pxa3xx_nand: Fix PIO data transfer mtd: nand: fix multi-chip suspend problem mtd: add support for switching old SST chips into QRY mode mtd: fix M29W800D dev_id and uaddr mtd: don't use PF_MEMALLOC mtd: Add bad block table overrides to Davinci NAND driver ... Fixed up conflicts (mostly trivial) in drivers/mtd/devices/m25p80.c drivers/mtd/maps/pcmciamtd.c drivers/mtd/nand/pxa3xx_nand.c kernel/printk.c
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-1/+1
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-30mtd: Add __nand_calculate_ecc() to NAND ECC functionsAkinobu Mita1-5/+20
Add __nand_calculate_ecc() which does not take struct mtd_info. The built-in 256/512 software ECC calculation and correction tester will use it. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Vimal Singh <vimalsingh@ti.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: nand: add __nand_correct_data helper functionAtsushi Nemoto1-7/+24
Split nand_correct_data() into two part, a pure calculation function and a wrapper for mtd interface. The tmio_nand driver can implement its ecc.correct function easily using this __nand_correct_data helper. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Vimal Singh <vimalsingh@ti.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-06-05mtd: nand: fix 512 byte software ecc supportVimal Singh1-2/+2
Type of 'byte_addr' needes to be 'unsigned int' for 512 byte ECC support. Signed-off-by: Vimal Singh <vimalsingh@ti.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-25[MTD] [NAND] nand_ecc.c: adding support for 512 byte eccSingh, Vimal1-24/+62
Support 512 byte ECC calculation [FM: updated two comments] Signed-off-by: Vimal Singh <vimalsingh@ti.com> Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-20[MTD] [NAND] Fix missing kernel-docAlexey Korolev1-3/+3
[Reported by Randy Dunlap] Signed-off-by: Alexey Korolev <akorolev@infradead.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-20[MTD] [NAND] nand_ecc.c: fix big endian, strengthen test, add printkfrans1-11/+33
This patch for nand_ecc.c fixes three issues - fix code so it also works on big endian architectures - added a printk in case of an uncorrectable ecc error - strengthen the test for correctable errors (decreasing the chance that multiple bit faults by accident will be seen as correctable) Note: the big endian code is only tested in a testbed (running on big endian hardware) as I cannot rebuild and test a big endian kernel at the moment. However the only thing that can go wrong is if <asm/byteorder.h> does not give __BIG_ENDIAN in that case. In my eyes very unlikely. Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-16[MTD] [NAND] Minor cleanup of nand_ecc.cDavid Woodhouse1-11/+9
Make the standalone stuff a little cleaner, fix some checkpatch warnings. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-16[MTD] [NAND] nand_ecc.c: rewrite for improved performancefrans1-124/+372
This patch improves the performance of the ecc generation code by a factor of 18 on an INTEL D920 CPU, a factor of 7 on MIPS and a factor of 5 on ARM (NSLU2) Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-06-04MTD/JFFS2: remove CVS keywordsAdrian Bunk1-2/+0
Once upon a time, the MTD repository was using CVS. This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code. This also includes code that printed them to the user. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] Replace -1 with -EBADMSG in nand error correction codeJörn Engel1-1/+1
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>
2006-11-29[MTD] [NAND] fix ifdef option in nand_ecc.cTimo Lindhorst1-2/+2
Fix up the config option in the #ifdef statements in nand_ecc.c Signed-off-by: Timo Lindhorst <lindhors@linux.vnet.ibm.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-29MTD: fix all kernel-doc warningsRandy Dunlap1-2/+1
Fix all kernel-doc warnings in MTD headers and source files: - add some missing struct fields; - correct some function parameter names; - use kernel-doc format for function doc. headers; - nand_ecc.c contains only exported interfaces, no internal ones; Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-23[MTD] Improve software ECC calculationThomas Gleixner1-134/+88
Unrolling the loops produces denser and much faster code. Add a config switch which allows to select the byte order of the resulting ecc code. The current Linux implementation has a byte swap versus the SmartMedia specification Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-13[MTD NAND] Indent all of drivers/mtd/nand/*.c.David Woodhouse1-17/+12
It was just too painful to deal with. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2005-11-07[MTD] NAND: Clean up trailing white spacesThomas Gleixner1-22/+22
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+250
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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