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* mtd: flash drivers set ecc strengthMike Dunn2012-03-271-0/+1
| | | | | | | | | | | | | | | | | Flash device drivers initialize 'ecc_strength' in struct mtd_info, which is the maximum number of bit errors that can be corrected in one writesize region. Drivers using the nand interface intitialize 'strength' in struct nand_ecc_ctrl, which is the maximum number of bit errors that can be corrected in one ecc step. Nand infrastructure code translates this to 'ecc_strength'. Also for nand drivers, the nand infrastructure code sets ecc.strength for ecc modes NAND_ECC_SOFT, NAND_ECC_SOFT_BCH, and NAND_ECC_NONE. It is set in the driver for all other modes. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: introduce mtd_read interfaceArtem Bityutskiy2012-01-091-2/+2
| | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge git://git.infradead.org/mtd-2.6Linus Torvalds2011-11-071-4/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (226 commits) mtd: tests: annotate as DANGEROUS in Kconfig mtd: tests: don't use mtd0 as a default mtd: clean up usage of MTD_DOCPROBE_ADDRESS jffs2: add compr=lzo and compr=zlib options jffs2: implement mount option parsing and compression overriding mtd: nand: initialize ops.mode mtd: provide an alias for the redboot module name mtd: m25p80: don't probe device which has status of 'disabled' mtd: nand_h1900 never worked mtd: Add DiskOnChip G3 support mtd: m25p80: add EON flash EN25Q32B into spi flash id table mtd: mark block device queue as non-rotational mtd: r852: make r852_pm_ops static mtd: m25p80: add support for at25df321a spi data flash mtd: mxc_nand: preset_v1_v2: unlock all NAND flash blocks mtd: nand: switch `check_pattern()' to standard `memcmp()' mtd: nand: invalidate cache on unaligned reads mtd: nand: do not scan bad blocks with NAND_BBT_NO_OOB set mtd: nand: wait to set BBT version mtd: nand: scrub BBT on ECC errors ... Fix up trivial conflicts: - arch/arm/mach-at91/board-usb-a9260.c Merged into board-usb-a926x.c - drivers/mtd/maps/lantiq-flash.c add_mtd_partitions -> mtd_device_register vs changed to use mtd_device_parse_register.
| * mtd: utilize `mtd_is_*()' functionsBrian Norris2011-09-211-1/+1
| | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: spelling, capitalization, uniformityBrian Norris2011-09-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Therefor -> Therefore [Intern], [Internal] -> [INTERN] [REPLACABLE] -> [REPLACEABLE] syndrom, syndom -> syndrome ecc -> ECC buswith -> buswidth endianess -> endianness dont -> don't occures -> occurs independend -> independent wihin -> within erease -> erase blockes -> blocks ... Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: nand: rename NAND_USE_FLASH_BBTBrian Norris2011-09-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recall the recently added prefix requirements: * "NAND_" for flags in nand.h, used in nand_chip.options * "NAND_BBT_" for flags in bbm.h, used in nand_chip.bbt_options or in nand_bbt_descr.options Thus, I am changing NAND_USE_FLASH_BBT to NAND_BBT_USE_FLASH. Again, this flag is found in bbm.h and so should NOT be used in the "nand_chip.options" field. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: nand: consolidate redundant flash-based BBT flagsBrian Norris2011-09-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch works with the following three flags from two headers (nand.h and bbm.h): (1) NAND_USE_FLASH_BBT (nand.h) (2) NAND_USE_FLASH_BBT_NO_OOB (nand.h) (3) NAND_BBT_NO_OOB (bbm.h) These flags are all related and interdependent, yet they were in different headers. Flag (2) is simply the combination of (1) and (3) and can be eliminated. This patch accomplishes the following: * eliminate NAND_USE_FLASH_BBT_NO_OOB (i.e., flag (2)) * move NAND_USE_FLASH_BBT (i.e., flag (1)) to bbm.h It's important to note that because (1) and (3) are now both found in bbm.h, they should NOT be used in the "nand_chip.options" field. I removed a small section from the mtdnand DocBook because it referes to NAND_USE_FLASH_BBT in nand.h, which has been moved to bbm.h. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* | mtd: Add module.h to drivers users that were implicitly using it.Paul Gortmaker2011-10-311-0/+1
|/ | | | | | | | We are cleaning up the implicit presence of module.h that these drivers are taking advantage of. Fix them in advance of the cleanup operation. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* mtd: diskonchip: convert to mtd_device_register()Jamie Iles2011-05-251-11/+7
| | | | | | | | | Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Revert wrong fixes for common misspellingsLucas De Marchi2011-04-261-1/+1
| | | | | | | These changes were incorrectly fixed by codespell. They were now manually corrected. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* Fix common misspellingsLucas De Marchi2011-03-311-4/+4
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* mtd: Remove obsolete <mtd/compatmac.h> includeDavid Woodhouse2010-08-081-1/+0
| | | | Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: doc2000: fix uninitialized variable in doc_ecc_decode()Mark Ware2010-08-041-2/+3
| | | | | | | | | | The variable 'syn' was being used uninitialized. Also fixed incorrect use of syn[] vs s[]. Tested on powerpc board with 64MiB DOC2000. Signed-off-by: Mark Ware <mware@elphinstone.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* tree-wide: fix assorted typos all over the placeAndré Goddard Rosa2009-12-041-1/+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>
* trivial: MTD: remove EOL from MODULE_DESCRIPTIONNiels de Vos2009-03-301-1/+1
| | | | | | | There is no need to have a "\n" on a MODULE_DESCRIPTION, remove it. Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* [MTD] [NAND] diskonchip.c fix sparse endian warningsHarvey Harrison2008-08-011-15/+15
| | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] [NAND] remove __PPC__ hardcoded address from DiskOnChip driversMilton Miller2008-07-111-2/+0
| | | | | | | | | | | | Such a hardcoded address can cause a checkstop or machine check if the driver is in the kernel but the address is not acknowledged. Both drivers allow an address to be specified as either a module parameter or config option. Any future powerpc board should either use one of these methods or find the address in the device tree. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* MTD/JFFS2: remove CVS keywordsAdrian Bunk2008-06-041-2/+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>
* [MTD] [NAND] Replace -1 with -EBADMSG in nand error correction codeJörn Engel2007-10-201-2/+2
| | | | | | | | 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>
* Merge branch 'master' of ↵David Woodhouse2007-08-011-3/+0
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * [MIPS] Remove Momentum Ocelot support.Ralf Baechle2007-07-311-3/+0
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [MTD] Remove Ocelot G support from DiskOnChip drivers.Yoichi Yuasa2007-07-111-2/+0
|/ | | | | | | | 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>
* [MIPS] Remove Momenco Ocelot C supportFranck Bui-Huu2007-07-101-1/+1
| | | | | | | | | | | | | | | | | | | 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
* [MTD] [NAND] Correct misspelled preprocessor variable.Robert P. J. Day2007-03-081-1/+1
| | | | | | | | | Replace the apparently misspelled preprocessor variable "MTD_NAND_DISKONCHIP_BBTWRITE" with the correct form "CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] replace kmalloc+memset with kzallocBurman Yan2006-11-281-2/+1
| | | | | Signed-off-by: Yan Burman <yan_952@hotmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] NAND: Fix breakage all over the placeThomas Gleixner2006-06-201-1/+1
| | | | | | | | | | | | | | | | | | Following problems are addressed: - wrong status caused early break out of nand_wait() - removed the bogus status check in nand_wait() which is a relict of the abandoned support for interrupted erase. - status check moved to the correct place in read_oob - oob support for syndrom based ecc with strange layouts - use given offset in the AUTOOOB based oob operations Partially based on a patch from Vitaly Vool <vwool@ru.mvista.com> Thanks to Savin Zlobec <savin@epico.si> for tracking down the status problem. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND Replace oobinfo by ecclayoutThomas Gleixner2006-05-291-3/+2
| | | | | | | | | The nand_oobinfo structure is not fitting the newer error correction demands anymore. Replace it by struct nand_ecclayout and fixup the users all over the place. Keep the nand_oobinfo based ioctl for user space compability reasons. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND modularize write functionThomas Gleixner2006-05-261-1/+1
| | | | | | | | Modularize the write function and reorganaize the internal buffer management. Remove obsolete chip options and fixup all affected users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND Modularize read functionThomas Gleixner2006-05-251-1/+3
| | | | | | | | Split the core of the read function out and implement seperate handling functions for software and hardware ECC. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND remove write_byte/word function from nand_chipThomas Gleixner2006-05-231-5/+6
| | | | | | | | The previous change of the command / hardware control allows to remove the write_byte/word functions completely, as their only user were nand_command and nand_command_lp. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Refactor NAND hwcontrol to cmd_ctrlThomas Gleixner2006-05-231-48/+29
| | | | | | | | | | | | The hwcontrol function enforced a step by step state machine for any kind of hardware chip access. Let the hardware driver know which control bits are set and inform it about a change of the control lines. Let the hardware driver write out the command and address bytes directly. This gives a peformance advantage for address bus controlled chips and simplifies the quirks in the hardware drivers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] ECC rework broke diskonchipThomas Gleixner2006-05-231-1/+1
| | | | | | Fix the diskonchip ecc setup. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge branch 'master' of /home/tglx/work/kernel/git/mtd-2.6/Thomas Gleixner2006-05-231-8/+8
|\ | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * [MTD] Introduce writesizeJoern Engel2006-05-221-8/+8
| | | | | | | | | | | | | | | | At least two flashes exists that have the concept of a minimum write unit, similar to NAND pages, but no other NAND characteristics. Therefore, rename the minimum write unit to "writesize" for all flashes, including NAND. Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
* | [MTD] NAND modularize ECCThomas Gleixner2006-05-231-4/+6
|/ | | | | | | | First step of modularizing ECC support. - Move ECC related functionality into a seperate embedded data structure - Get rid of the hardware dependend constants to simplify new ECC models Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD NAND] Indent all of drivers/mtd/nand/*.c.David Woodhouse2006-05-131-204/+211
| | | | | | It was just too painful to deal with. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] Unlinline a bunch of other functionsArjan van de Ven2006-01-141-1/+1
| | | | | | | | | | | Remove the "inline" keyword from a bunch of big functions in the kernel with the goal of shrinking it by 30kb to 40kb Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [MTD] NAND: Clean up trailing white spacesThomas Gleixner2005-11-071-50/+50
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Add some commentsDan Brown2005-05-231-1/+11
| | | | | | | | Add helpful comment about oobfree so I can't claim two years from now that I don't remember what I was thinking. Signed-off-by: Dan Brown <dan_brown@ieee.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Fix compile w/o CONFIG_MTD_PARTITIONS.Dan Brown2005-05-231-3/+1
| | | | | Signed-off-by: Dan Brown <dan_brown@ieee.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Prevent problems with existing filesystemsDan Brown2005-05-231-2/+2
| | | | | | | | Try not to break existing jffs2 installs, instead break oobfree into two out-of-order pieces. Signed-off-by: Dan Brown <dan_brown@ieee.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Fix (?) free OOB array info.Dan Brown2005-05-231-2/+2
| | | | | | | I really hope this doesn't break something. Signed-off-by: Dan Brown <dan_brown@ieee.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Scan the entire device for Media Headers. Dan Brown2005-05-231-22/+28
| | | | | | | Add a new module param, show_firmware_partition. Signed-off-by: Dan Brown <dan_brown@ieee.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Wait for the command to finish.Thomas Gleixner2005-05-231-2/+9
| | | | | | | Do not use the ready function here, as it might hang for ever. The result will show, whether the chip is there or not Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: big endian fix for NFTL devicesThomas Gleixner2005-05-231-1/+5
| | | | | | Make NFTL devices work on big endian machines. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip code cleanupThomas Gleixner2005-05-231-16/+3
| | | | | | Remove commented ugliness Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip use CONFIG_ options instead of random symbolsThomas Gleixner2005-05-231-5/+5
| | | | | | Using the CONFIG_ options from KConfig seems to work better :8 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+1782
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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