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path: root/drivers/mtd
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2011-03-23mtd: add "platform:" prefix for platform modaliasAxel Lin
commit c804c733846572ca85c2bba60c7fe6fa024dff18 upstream. Since 43cc71eed1250755986da4c0f9898f9a635cb3bf (platform: prefix MODALIAS with "platform:"), the platform modalias is prefixed with "platform:". Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-26pxa3xx: fix ns2cycle equationAxel Lin
commit 93b352fce679945845664b56b0c3afbd655a7a12 upstream. Test on a PXA310 platform with Samsung K9F2G08X0B NAND flash, with tCH=5 and clk is 156MHz, ns2cycle(5, 156000000) returns -1. ns2cycle returns negtive value will break NDTR0_tXX macros. After checking the commit log, I found the problem is introduced by commit 5b0d4d7c8a67c5ba3d35e6ceb0c5530cc6846db7 "[MTD] [NAND] pxa3xx: convert from ns to clock ticks more accurately" To get num of clock cycles, we use below equation: num of clock cycles = time (ns) / one clock cycle (ns) + 1 We need to add 1 cycle here because integer division will truncate the result. It is possible the developers set the Min values in SPEC for timing settings. Thus the truncate may cause problem, and it is safe to add an extra cycle here. The various fields in NDTR{01} are in units of clock ticks minus one, thus we should subtract 1 cycle then. Thus the correct equation should be: num of clock cycles = time (ns) / one clock cycle (ns) + 1 - 1 = time (ns) / one clock cycle (ns) Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-02-09UBI: fix volume creation input checkingMika Westerberg
commit c5ce5b46af76f52dea21f467397d24c4ae6cb3ff upstream. Do not use an unchecked variable UBI_IOCMKVOL ioctl. Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-28UBI: initialise update markerPeter Horton
commit ff998793288b49a3b22d929bf8e56362320905ff upstream. The in kernel copy of a volume's update marker is not initialised from the volume table. This means that volumes where an update was unfinnished will not be treated as "forbidden to use". This is basically that the update functionality was broken. Signed-off-by: Peter Horton <zero@colonel-panic.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-28UBI: fix memory leak in update pathArtem Bityutskiy
commit ebddd63b74dcf1cb676d14328d5852f1fee19a8a upstream. When truncating an UBI volume, UBI should allocates a PEB-sized buffer but does not release it, which leads to memory leaks. This patch fixes the issue. Reported-by: Marek Skuczynski <mareksk7@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Tested-by: Marek Skuczynski <mareksk7@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-18UBI: flush wl before clearing update markerSebastian Andrzej Siewior
commit 6afaf8a484cbbfd2ccf58a4e5396d1f280469789 upstream. ubiupdatevol -t does the following: - ubi_start_update() - set_update_marker() - for all LEBs ubi_eba_unmap_leb() - clear_update_marker() - ubi_wl_flush() ubi_wl_flush() physically erases all PEB, once it returns all PEBs are empty. clear_update_marker() has the update marker written after return. If there is a power cut between the last two functions then the UBI volume has no longer the "update" marker set and may have some valid LEBs while some of them may be gone. If that volume in question happens to be a UBIFS volume, then mount will fail with |UBIFS error (pid 1361): ubifs_read_node: bad node type (255 but expected 6) |UBIFS error (pid 1361): ubifs_read_node: bad node at LEB 0:0 |Not a node, first 24 bytes: |00000000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff if there is at least one valid LEB and the wear-leveling worker managed to clear LEB 0. The patch waits for the wl worker to finish prior clearing the "update" marker on flash. The two new LEB which are scheduled for erasing after clear_update_marker() should not matter because they are only visible to UBI. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-11-16ARM: Fix warning in sa1100-flash.cRussell King
drivers/mtd/maps/sa1100-flash.c: In function 'sa1100_probe_subdev': drivers/mtd/maps/sa1100-flash.c:214: warning: format '%d' expects type 'int', but argument 3 has type 'uint64_t' Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-11-09mtd/maps: Fix accidental removal in MakefileAtsushi Nemoto
The commit d79c326 ("gpio-addr-flash: new driver for GPIO assisted flash addressing") removed two lines from the Makefile by accident. Though I'm not sure how this accident happened, this patch reverts the removal. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-05Merge git://git.infradead.org/users/dwmw2/mtd-2.6.32Linus Torvalds
* git://git.infradead.org/users/dwmw2/mtd-2.6.32: mtd/maps: gpio-addr-flash: depend on GPIO arch support mtd/maps: gpio-addr-flash: pull in linux/ headers rather than asm/ mtd: nand: fix htmldocs warnings
2009-10-20UBI: fix check on unsigned longRoel Kluin
result is unsigned, the wrong check was used. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-10-20UBI: fix backward compatibilityArtem Bityutskiy
Commit 32bc4820287a1a03982979515949e8ea56eac641 did not fully fix the backward compatibility issues. We still fail to properly handle situations when the first PEB contains non-zero image sequence number, but one of the following PEBs contains zero image sequence number. For example, this may happen if we mount a new image with an old kernel, and then try to mount it in the new kernel. This patch should fix the issue. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-10-11headers: remove sched.h from interrupt.hAlexey Dobriyan
After m68k's task_thread_info() doesn't refer to current, it's possible to remove sched.h from interrupt.h and not break m68k! Many thanks to Heiko Carstens for allowing this. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-10-01block: use normal I/O path for discard requestsChristoph Hellwig
prepare_discard_fn() was being called in a place where memory allocation was effectively impossible. This makes it inappropriate for all but the most trivial translations of Linux's DISCARD operation to the block command set. Additionally adding a payload there makes the ownership of the bio backing unclear as it's now allocated by the device driver and not the submitter as usual. It is replaced with QUEUE_FLAG_DISCARD which is used to indicate whether the queue supports discard operations or not. blkdev_issue_discard now allocates a one-page, sector-length payload which is the right thing for the common ATA and SCSI implementations. The mtd implementation of prepare_discard_fn() is replaced with simply checking for the request being a discard. Largely based on a previous patch from Matthew Wilcox <matthew@wil.cx> which did the prepare_discard_fn but not the different payload allocation yet. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-09-24mtd/maps: gpio-addr-flash: depend on GPIO arch supportMike Frysinger
The driver requires gpio functionality, so make sure we depend on that in the Kconfig menu. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-24mtd/maps: gpio-addr-flash: pull in linux/ headers rather than asm/Mike Frysinger
Now that there are linux/ versions of gpio.h and io.h, include those rather than hitting the asm/ versions. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-24Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (24 commits) microblaze: Disable heartbeat/enable emaclite in defconfigs microblaze: Support simpleImage.dts make target microblaze: Fix _start symbol to physical address microblaze: Use LOAD_OFFSET macro to get correct LMA for all sections microblaze: Create the LOAD_OFFSET macro used to compute VMA vs LMA offsets microblaze: Copy ppc asm-compat.h for clean handling of constants in asm and C microblaze: Actually show KiB rather than pages in "Freeing initrd memory:" microblaze: Support ptrace syscall tracing. microblaze: Updated CPU version and FPGA family codes in PVR microblaze: Generate correct signal and siginfo for integer div-by-zero microblaze: Don't be noisy when userspace causes hardware exceptions microblaze: Remove ipc.h file which points to non-existing asm-generic file microblaze: Clear sticky FSR register after generating exception signals microblaze: Ensure CPU usermode is set on new userspace processes microblaze: Use correct kbuild variable KBUILD_CFLAGS microblaze: Save and restore msr in hw exception microblaze: Add architectural support for USB EHCI host controllers microblaze: Implement include/asm/syscall.h. microblaze: Improve checking mechanism for MSR instruction microblaze: Add checking mechanism for MSR instruction ...
2009-09-24mtd: nand: fix htmldocs warningsJaswinder Singh Rajput
Fixed following htmldocs warnings: DOCPROC Documentation/DocBook/mtdnand.xml Warning(drivers/mtd/nand/nand_base.c:769): No description found for parameter 'page' Warning(drivers/mtd/nand/nand_base.c:785): No description found for parameter 'page' Warning(drivers/mtd/nand/nand_base.c:824): No description found for parameter 'page' Warning(drivers/mtd/nand/nand_base.c:947): No description found for parameter 'page' Warning(drivers/mtd/nand/nand_base.c:996): No description found for parameter 'page' Warning(drivers/mtd/nand/nand_base.c:1040): No description found for parameter 'page' Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-23Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (58 commits) mtd: jedec_probe: add PSD4256G6V id mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board) mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board) m25p80: Add Spansion S25FL129P serial flashes jffs2: Use SLAB_HWCACHE_ALIGN for jffs2_raw_{dirent,inode} slabs mtd: sh_flctl: register sh_flctl using platform_driver_probe() mtd: nand: txx9ndfmc: transfer 512 byte at a time if possible mtd: nand: fix tmio_nand ecc correction mtd: nand: add __nand_correct_data helper function mtd: cfi_cmdset_0002: add 0xFF intolerance for M29W128G mtd: inftl: fix fold chain block number mtd: jedec: fix compilation problem with I28F640C3B definition mtd: nand: fix ECC Correction bug for SMC ordering for NDFC driver mtd: ofpart: Check availability of reg property instead of name property driver/Makefile: Initialize "mtd" and "spi" before "net" mtd: omap: adding DMA mode support in nand prefetch/post-write mtd: omap: add support for nand prefetch-read and post-write mtd: add nand support for w90p910 (v2) mtd: maps: add mtd-ram support to physmap_of mtd: pxa3xx_nand: add single-bit error corrections reporting ...
2009-09-23spi: prefix modalias with "spi:"Anton Vorontsov
This makes it consistent with other buses (platform, i2c, vio, ...). I'm not sure why we use the prefixes, but there must be a reason. This was easy enough to do it, and I did it. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Jean Delvare <khali@linux-fr.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Samuel Ortiz <sameo@openedhand.com> Cc: "John W. Linville" <linville@tuxdriver.com> Acked-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23mtd: jedec_probe: add PSD4256G6V idMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) trivial: fix typo in aic7xxx comment trivial: fix comment typo in drivers/ata/pata_hpt37x.c trivial: typo in kernel-parameters.txt trivial: fix typo in tracing documentation trivial: add __init/__exit macros in drivers/gpio/bt8xxgpio.c trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.c trivial: remove unnecessary semicolons trivial: Fix duplicated word "options" in comment trivial: kbuild: remove extraneous blank line after declaration of usage() trivial: improve help text for mm debug config options trivial: doc: hpfall: accept disk device to unload as argument trivial: doc: hpfall: reduce risk that hpfall can do harm trivial: SubmittingPatches: Fix reference to renumbered step trivial: fix typos "man[ae]g?ment" -> "management" trivial: media/video/cx88: add __init/__exit macros to cx88 drivers trivial: fix typo in CONFIG_DEBUG_FS in gcov doc trivial: fix missing printk space in amd_k7_smp_check trivial: fix typo s/ketymap/keymap/ in comment trivial: fix typo "to to" in multiple files trivial: fix typos in comments s/DGBU/DBGU/ ...
2009-09-22const: make block_device_operations constAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-21Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: improve NOR flash erasure quirk UBI: introduce flash dump helper UBI: eliminate possible undefined behaviour UBI: print a warning if too many PEBs are corrupted UBI: amend NOR flash pre-erase quirk UBI: print a message if ECH is corrupted and VIDH is ok
2009-09-21trivial: fix typo "to to" in multiple filesAnand Gadiyar
Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-21trivial: mtd: add __init/__exit macros to init/exitfunctionsPeter Huewe
Trivial patch which adds the __init and __exit macros to the module_init / module_exit functions to the following modules from drivers/mtd/ devices/m25p80.c devices/slram.c linux version 2.6.30 ftl.c nand/cafe_nand.c nand/cmx270_nand.c Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-21mtd: Enable Open Firmware initialisation of MTD devices and maps for MicroBlazeJohn Williams
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-20mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board)Alessandro Rubini
Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-20Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/mtd/mtdcore.c Merged in order that I can apply the Nomadik nand/onenand support patches.
2009-09-19m25p80: Add Spansion S25FL129P serial flashesKevin Cernekee
Tested 64KiB block size only. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: sh_flctl: register sh_flctl using platform_driver_probe()David Woodhouse
As with orion_nand in commit f33dabbe79fdf7a8568c65faa1db7794c87ac4d3 ("register orion_nand using platform_driver_probe()"), avoid .init.text problems by using platform_device_probe(). This isn't going to be hotplugged anyway. Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: nand: txx9ndfmc: transfer 512 byte at a time if possibleAtsushi Nemoto
Using __nand_correct_data() helper function, this driver can read 512 byte (with 6 byte ECC) at a time. This results minor performance improvement. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: nand: fix tmio_nand ecc correctionAtsushi Nemoto
This driver may be reading 512 bytes at a times, but still calculates 256-byte sector ECC. So the nand_correct_data() is not appropriate for this driver. Implement its ecc.correct function calling __nand_correct_data() twice. 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>
2009-09-19mtd: nand: add __nand_correct_data helper functionAtsushi Nemoto
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>
2009-09-19mtd: cfi_cmdset_0002: add 0xFF intolerance for M29W128GMassimo Cirillo
The M29W128G Numonyx flash devices are intolerant to any 0xFF command: in the Cfi_util.c the function cfi_qry_mode_off() (that resets the device after the autoselect mode) must have a 0xF0 command after the 0xFF command. This fix solves also the cause of the fixup_M29W128G_write_buffer() fix, that can be removed now. The following patch applies to 2.6.30 kernel. Signed-off-by: Massimo Cirillo <maxcir@gmail.com> Acked-by: Alexey Korolev <akorolev@infradead.org> Cc: stable@kernel.org Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: inftl: fix fold chain block numberMohanlal Jangir
Signed-off-by: Mohan Lal Jangir <mohanlaljangir@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: jedec: fix compilation problem with I28F640C3B definitionStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: nand: fix ECC Correction bug for SMC ordering for NDFC driverFeng Kan
Fix ECC Correction bug where the byte offset location were double fliped causing correction routine to toggle the wrong byte location in the ECC segment. The ndfc_calculate_ecc routine change the order of getting the ECC code. /* The NDFC uses Smart Media (SMC) bytes order */ ecc_code[0] = p[2]; ecc_code[1] = p[1]; ecc_code[2] = p[3]; But in the Correction algorithm when calculating the byte offset location, the b1 is used as the upper part of the address. Which again reverse the order making the final byte offset address location incorrect. byte_addr = (addressbits[b1] << 4) + addressbits[b0]; The order is change to read it in straight and let the correction function to revert it to SMC order. Cc: stable@kernel.org Signed-off-by: Feng Kan <fkan@amcc.com> Acked-by: Victor Gallardo <vgallardo@amcc.com> Acked-by: Prodyut Hazarika <phazarika@amcc.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: ofpart: Check availability of reg property instead of name propertyBenjamin Krill
The previous implementation breaks the dts binding "mtd-physmap.txt". This implementation fixes the issue by checking the availability of the reg property instead of the name property. Cc: stable@kernel.org Signed-off-by: Benjamin Krill <ben@codiert.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: omap: adding DMA mode support in nand prefetch/post-writevimal singh
This patch adds DMA mode support for nand prefetch/post-write engine. Signed-off-by: Vimal Singh <vimalsingh@ti.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: omap: add support for nand prefetch-read and post-writevimal singh
This patch adds prefetch support to access nand flash in mpu mode. This patch also adds 8-bit nand support (omap_read/write_buf8). Prefetch can be used for both 8- and 16-bit devices. Signed-off-by: Vimal Singh <vimalsingh@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: add nand support for w90p910 (v2)Wan ZongShun
Add w90p910 NAND driver for w90p910 evaluation board based on w90p910,there is a K8F1G08 NAND on my board. [dwmw2: depend on MTD_PARTITIONS] Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: maps: add mtd-ram support to physmap_ofWolfram Sang
Use physmap_of to access RAMs as mtd and add documenation for it. This approach is a lot less intrusive as adding an of-wrapper around plat-ram.c. As most extensions of plat-ram.c (e.g. custom map-functions) can't be mapped to the device tree anyhow, extending physmap_of seems to be the cleanest approach. Tested with a phyCORE-MPC5121e. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Vitaly Wool <vwool@ru.mvista.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Cc: Ken MacLeod <ken@bitsko.slc.ut.us> Cc: Albrecht Dreß <albrecht.dress@arcor.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: pxa3xx_nand: add single-bit error corrections reportingYeasah Pell
Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Yeasah Pell <yeasah@comrex.com> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: mxc_nand: fix 2KiB pagesize NAND on i.MX27Eric Benard
This patch allows i.MX27 to support 2KiB pagesize NAND flash. We are using a 1.8V NAND flash which datasheet (unfortunately only available under NDA) says : Page size: x8: 2,112 bytes (2,048 + 64 bytes). Without this patch, all sectors are marked as bad eraseblock. Signed-off-by: Eric Benard <ebenard@eukrea.com> Acked-by : Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19phram: cleanup error handling and associated messagesMike Frysinger
The error handling in the phram driver is pretty bad -- in many places, errors are silently ignored or logged, but then still ignored in the return value. So convert all of the code to pass back the correct return value and log error messages properly (and using the new pr_fmt() helper). If everything does go smoothly, rather than exit silently, dump a helpful info message like pretty much every other MTD driver does. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Joern Engel <joern@logfs.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: m25p80: add SST WF SPI flash device informationGraf Yang
Support SST25WF{512,010,020,040} SPI flashes. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: m25p80: add support for AAI programming with SST SPI flashesGraf Yang
The SST SPI flashes are a bit non-standard in that they can be programmed one byte at a time (including address!), or they can be written two bytes at a time with auto address incrementing (AAI). The latter form is obviously much better for performance, so let's use it when possible. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: fix order of TEST/PARTITIONS kconfig optionsMike Frysinger
The MTD_TEST config option was added in between the MTD_PARTITIONS config and its dependent options which causes the resulting menu system to display incorrectly as MTD_TEST does not depend on MTD_PARTITIONS. So move it up a few lines where it won't cause a problem. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd/maps: gpio-addr-flash: new driver for GPIO assisted flash addressingMike Frysinger
This driver lets people use GPIO's for additional address lines in case their processor does not have enough address lines already. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd/maps: uclinux: depend on MTD_RAM being built into the kernelMike Frysinger
If MTD_RAM is built as a module, the uClinux map does not work since it can only be built in to the kernel. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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