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path: root/drivers/mtd/devices
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2008-12-10[MTD] Make lart_flash_init, lart_flash_exit staticDmitri Vorobiev
The symbols lart_flash_init, lart_flash_exit are needlessly defined global in drivers/mtd/devices/lart.c, so make them static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-12-09Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: [MTD] [NAND] fix OOPS accessing flash operations over STM flash on PXA [MTD] [NAND] drivers/mtd/nand/pasemi_nand.c: Add missing pci_dev_put [MTD] [NAND] fsl_upm: fix build problem with 2.6.28-rc2 [MTD] physmap: fix memory leak on physmap_flash_remove by using devres [MTD] m25p80: chip erase != block erase != sector erase [MTD] m25p80: fix detection of m25p16 flashes [MTD] m25p80: fix detection of SPI parts [MTD] [NAND] OMAP: OneNAND: header file relocation (part 2) [MTD] [NAND] OMAP: OneNAND: header file relocation
2008-11-26[MTD] m25p80: chip erase != block erase != sector eraseChen Gong
This fixes broken terminology added in the "m25p80.c erase enhance" patch, which added a chip erase command but called it "block erase". There are already two block erase commands; blocks are 4KiB or 32KiB. There's also a sector erase (usually 64 KiB). Chip erase typically covers Megabytes. OPCODE_BE ==> OPCODE_CHIP_ERASE erase_block ==> erase_chip [dbrownell@users.sourceforge.net: update sector erase comments too ] Signed-off-by: Chen Gong <clumsycg@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26[MTD] m25p80: fix detection of m25p16 flashesMike Frysinger
Commit d0e8c47c58575b9131e786edb488fd029eba443e ("m25p80.c extended jedec support") added support for extended ids but seems to break on flashes which don't have an extended id defined. If the table does not have an extid defined, then we should ignore it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Michael Hennerich <Michael.Hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-11-26[MTD] m25p80: fix detection of SPI partsMike Frysinger
Commit d0e8c47c58575b9131e786edb488fd029eba443e ("m25p80.c extended jedec support") added support for extended ids but in the process managed to break detection of all flashes. The ext jedec id check was inserted into an if statement that lacked braces, and it did not add the required braces. As such, the detection routine always returns the first entry in the SPI flash list. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-10-21[PATCH] propagate mode through open_bdev_excl/close_bdev_exclAl Viro
replace open_bdev_excl/close_bdev_excl with variants taking fmode_t. superblock gets the value used to mount it stored in sb->s_mode Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-20Revert "[MTD] m25p80.c code cleanup"David Woodhouse
This reverts commit 75d0ee2202b5740e94e913d8a52f91c6557c4c81. Although it seems ObviouslyCorrect™, the spi_write() call uses DMA, while spi_write_then_read() does not. Since our buffer is on the stack, we must use the latter even though we don't actually want to read anything back. Pointed out by David Brownell <david-b@pacbell.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-10-14[MTD] m25p80.c extended jedec support (v2)Chen Gong
Include missing parts of previous patch. Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-11[MTD] m25p80.c extended jedec supportChen Gong
- add extended device information support - add s25sl128 device support Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-11[MTD] m25p80.c code cleanupChen Gong
code cleanup for m25p80.c Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-11[MTD] m25p80.c erase enhanceChen Gong
This patch adds an erase_block command to enhance erase operation Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-07[MTD] make dataflash write-verify be optionalDavid Brownell
This adds a WRITE_VERIFY Kconfig option to the DataFlash driver, closely mirroring the similar NAND and ONENAND options, giving an option to disable some code that's currently always enabled. Removing this step probably saves a millisecond or so per page when writing data, which will add up quickly since these pages are small (the largest is 1 KiB). It doesn't seem to add a lot in terms of reliability, and wouldn't detect errors which crop up when transferring data to the on-chip SRAM buffer. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-07[MTD] Compile fix for dataflash OTP supportDavid Brownell
> > linux-next-20080805/drivers/mtd/devices/mtd_dataflash.c: In function 'add_dataflash_otp': > > linux-next-20080805/drivers/mtd/devices/mtd_dataflash.c:670: error: too many arguments to function 'otp_setup' Whoops, sorry ... I see what was going on. My bad. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01[MTD] dataflash OTP supportDavid Brownell
Now that we can tell when we have one of the newer DataFlash chips, optionally expose the 128 bytes of OTP memory they provide. Tested on at45db642 revision B and D chips. Switch mtdchar over to a generic HAVE_MTD_OTP flag instead of adding another #ifdef for each type of chip whose driver has OTP support. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Bryan Wu <cooloney@kernel.org> Cc: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-30[MTD] DataFlash: bugfix, binary page sizes now handledakpm@linux-foundation.org
The wrong version of the "teach dataflash about binary density" patch just got merged (v2 not v3) ... this restores the missing updates: * Fix the cmdlinepart *regression* that caused testing failures (!!) by restoring the original part labels in relevant cases. * Don't reference things that don't exist (!) - An opcode that doesn't even exist for DataFlash - The part is "at45db642" not "at45db641" - ID zero in this JEDEC table * Make the JEDEC probe routine report and handle errors better: - If the SPI calls fail, return the error codes. - Don't depend on ordering of table entries. - Unrecognized ids are different from parts that have no ID. We won't actually know how to handle them correctly; display the ID and ignore the chip. * Move the original block comment about the "legacy" chip ID scheme back next to the code to which it applies ... not next to the new JEDEC query code, which uses an entirely different strategy. * Don't print a guessed erasesize; /proc/mtd has the real value. And add a few more comments. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Bryan Wu <cooloney@kernel.org> Cc: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6David Woodhouse
2008-07-21MTD: handle pci_name() being constGreg Kroah-Hartman
This changes the MTD core to handle pci_name() now returning a constant string. Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-11[MTD] [NAND] remove __PPC__ hardcoded address from DiskOnChip driversMilton Miller
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>
2008-07-11[MTD] m25p80: fix bug - ATmel spi flash fails to be copied toMichael Hennerich
Atmel serial flash tends to power up with the protection status bits set. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=4089 [michael.hennerich@analog.com: remove duplicate code] Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-11Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2008-06-06[MTD] m25p80.c mutex unlock fixChen Gong
fix a mutex release bug in function m25p80_write. Signed-off-by: Chen Gong <g.chen@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-04MTD/JFFS2: remove CVS keywordsAdrian Bunk
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>
2008-06-04[MTD] DataFlash: use proper typesDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-04[MTD] DataFlash: fix bug - ATMEL AT45DF321D spi flash card fails to be ↵Michael Hennerich
copied to (v2) - Add support for binary page size DataFlashes. - The driver now prints out pagesize and erasesize. Printout valuable information for creating flash filesystems. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-05-01[MTD][NOR] Add physical address to point() methodJared Hulbert
Adding the ability to get a physical address from point() in addition to virtual address. This physical address is required for XIP of userspace code from flash. Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Reviewed-by: Jörn Engel <joern@logfs.org> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-25[MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI FlashMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-25[MTD] m25p80: add FAST_READ access support to M25PxxBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-22[MTD] mtdram.c should #include <linux/mtd/mtdram.h>Adrian Bunk
Every file should include the headers containing the externs for its global functions (in this case for mtdram_init_device()). Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-22[MTD] Correct phram module param descriptionMark Hindley
Signed-off-by: Mark Hindley <mark@hindley.org.uk> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-22[MTD] replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-22[MTD] block2mtd: logging typo fixesStephane Chazelas
Address a number of small issues mainly regarding the output made by this driver to dmesg: - Some of the blkmtd's had not been changed to block2mtd which caused display problem - the parse_err() macro was displaying "block2mtd: " twice Signed-off-by: Stéphane Chazelas <stephane.chazelas@emerson.com> Acked-by: Jörn Engel <joern@lazybastard.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-03-24mtd: memory corruption in block2mtd.cIngo van Lil
The block2mtd driver (drivers/mtd/devices/block2mtd.c) will kfree an on-stack pointer when handling an invalid argument line (e.g. block2mtd=/dev/loop0,xxx). The kfree was added some time ago when "name" was dynamically allocated. Signed-off-by: Ingo van Lil <inguin@gmx.de> Acked-by: Joern Engel <joern@lazybastard.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: <stable@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (120 commits) [MTD] Fix mtdoops.c compilation [MTD] [NOR] fix startup lock when using multiple nor flash chips [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true [MTD] Fix maps/physmap.c compilation with CONFIG_PM [MTD] onenand: Add panic_write function to the onenand driver [MTD] mtdoops: Use the panic_write function when present [MTD] Add mtd panic_write function pointer [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support. [MTD] physmap.c: Add support for multiple resources [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179... [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver [MTD] [NAND] Remove unused variable in plat_nand_remove [MTD] Unlocking all Intel flash that is locked on power up. [MTD] [NAND] at91_nand: Make mtdparts option can override board info [MTD] mtdoops: Various minor cleanups [MTD] mtdoops: Ensure sequential write to the buffer [MTD] mtdoops: Perform write operations in a workqueue [MTD] mtdoops: Add further error return code checking [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c ...
2008-02-07[MTD] [DOC200x] eccbuf is statically defined and always evaluate to trueSamuel Tardieu
Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Acked-by: Joern Engel <joern@logfs.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-06Claim maintainership for block2mtd and update email addressesJoern Engel
I have been prime author and maintainer of block2mtd from day one, but neither MAINTAINERS nor the module source makes this fact clear. And while I'm at it, update my email addresses tree-wide, as the old address currently bounces and change my name to "joern" as unicode will likely continue to cause trouble until the end of this century. Signed-off-by: Joern Engel <joern@lazybastard.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-03fix typo 'the same the\>'Uwe Kleine-König
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03[MTD] [NOR] Test devtype, not definition in flash_probe(), ↵Roel Kluin
drivers/mtd/devices/lart.c drivers/mtd/devices/lart.c:119:#define FLASH_DEVICE_16mbit_BOTTOM 0x88f488f4 As was, unless "manufacturer != FLASH_MANUFACTURER" this returned true Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-11-28[MTD] mtd_dataflash: Incorrect compare-after-write checkAndrew Victor
After writing to a Dataflash page, the built-in compare operation is used to check that the page was successfully written. A logic bug in checking the results of the comparison currently causes the compare to never fail. This bug was originally in the legacy at91_dataflash.c driver. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Acked-by: David Brownell <david-b@pacbell.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-03Revert "[MTD] Driver for AT26Fxxx dataflash devices"David Woodhouse
This reverts commit 340ea370c2ce89d1c15fbf785460f2f74314ce58. It's not needed given the other m25p80 patch (which now handles at26 "dataflash" as well as most other standard SPI flash chips), and requires a controller driver that won't be merged upstream (supplanted by drivers/spi/atmel_spi.c) ... the submitter of that at91_dataflash26.c driver concurred. Requested by David Brownell <david-b@pacbell.net> 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
2007-07-31[MIPS] Remove Momentum Ocelot support.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.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] remove dead MTD_PMC551_APERTURE_SIZE optionAdrian Bunk
The CONFIG_MTD_PMC551_APERTURE_SIZE option seems to never have existed, so there's no reason for carrying an #ifdef for it. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-29[MTD] Use proper binary multiple prefixes in pmc551 driverDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] Use mutex instead of semaphore in dataflash driverMatthias Kaehlcke
The MTD DataFlash driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] m25p80: Use correct units for binary multiplesDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] m25p80 handles more chips, uses JEDEC ids and small eraseblocksDavid Brownell
Update chip ID tables in m25p80 to handle more SPI flash chips, matching datasheets. All of these can use the same core operations and are newer chips that support the JEDEC "read id" instruction: - Atmel AT25 and AT26 (seven chips) - Spansion S25SL (five chips) - SST 25VF (four chips) - ST M25, M45 (five more chips) - Winbond W25X series (seven chips) That JEDEC instruction is now used, either to support a sanity check on the platform data holding board configuration data, or to determine chip type when it's not included in platform data. In fact, boards that don't need a standard partition table may not need that platform data any more. For chips that support 4KiB erase units, use that smaller block size instead of the larger size (usually 64KiB); it's less wasteful. (Tested on W25X80.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-06-28[MTD] m25p80 converted to mutexDavid Brownell
Convert semaphore usage in m25p80 driver to mutex; mention another kind of SPI flash chip that should be able to use this driver (given minor tweaks). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>