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path: root/drivers/mtd/nand/atmel_nand.c
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2013-01-03Drivers: mtd: remove __dev* attributes.Greg Kroah-Hartman
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-19Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
2012-12-03mtd: at91: atmel_nand: return bit flips for the PMECC read_page()Josh Wu
This patch fix pmecc's read_page() to return maximum number of bitflips, 0 if uncorrectable. In the commit: 3f91e94f7f511de74c0d2abe08672ccdbdd1961c ("mtd: nand: read_page() returns max_bitflips ()"), The ecc.read_page() is changed to return the maximum number of bitflips. And when meet uncorrectable bitflips it needs to return 0. See the comment in nand.h: * @read_page: function to read a page according to the ECC generator * requirements; returns maximum number of bitflips corrected in * any single ECC step, 0 if bitflips uncorrectable, -EIO hw error Signed-off-by: Josh Wu <josh.wu@atmel.com> Reviewed-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-11-22mtd: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-10-13MTD: atmel_nand: add pinctrl consumer supportJean-Christophe PLAGNIOL-VILLARD
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-09-29mtd: atmel nand: fix gpio missing requestJean-Christophe PLAGNIOL-VILLARD
without this the gpio will not be muxed as a gpio by the current custom pinmux or later by the pinctrl Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06mtd: at91: atmel_nand: add Programmable Multibit ECC controller supportJosh Wu
The Programmable Multibit ECC (PMECC) controller is a programmable binary BCH(Bose, Chaudhuri and Hocquenghem) encoder and decoder. This controller can be used to support both SLC and MLC NAND Flash devices. It supports to generate ECC to correct 2, 4, 8, 12 or 24 bits of error per sector of data. To use PMECC in this driver, the user needs to set the address and size of PMECC, PMECC error location controllers and ROM. And also needs to pass the correction capability, the sector size and ROM lookup table offsets via dt. This driver has been tested on AT91SAM9X5-EK and AT91SAM9N12-EK with JFFS2, YAFFS2, UBIFS and mtd-utils. Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Josh Wu <josh.wu@atmel.com> Tested-by: Richard Genoud <richard.genoud@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06mtd: at91: add dt parameters for Atmel PMECCJosh Wu
Add DT support for PMECC parameters. Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06mtd: at91: extract hw ecc initialization to one functionJosh Wu
This patch moves hw ecc initialization code to one function. Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: nand: add 'oob_required' argument to NAND {read,write}_page interfacesBrian Norris
New NAND controllers can perform read/write via HW engines which don't expose OOB data in their DMA mode. To reflect this, we should rework the nand_chip / nand_ecc_ctrl interfaces that assume that drivers will always read/write OOB data in the nand_chip.oob_poi buffer. A better interface includes a boolean argument that explicitly tells the callee when OOB data is requested by the calling layer (for reading/writing to/from nand_chip.oob_poi). This patch adds the 'oob_required' parameter to each relevant {read,write}_page interface; all 'oob_required' parameters are left unused for now. The next patch will set the parameter properly in the nand_base.c callers, and follow-up patches will make use of 'oob_required' in some of the callee functions. Note that currently, there is no harm in ignoring the 'oob_required' parameter and *always* utilizing nand_chip.oob_poi, but there can be performance/complexity/design benefits from avoiding filling oob_poi in the common case. I will try to implement this for some drivers which can be ported easily. Note: I couldn't compile-test all of these easily, as some had ARCH dependencies. [dwmw2: Merge later 1/0 vs. true/false cleanup] Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Acked-by: Jiandong Zheng <jdzheng@broadcom.com> Acked-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>
2012-05-13mtd: nand: read_page() returns max_bitflipsMike Dunn
The ecc.read_page() method for nand drivers is changed to return the maximum number of bitflips that were corrected on any one region covering an ecc step, This patch doesn't change what the nand code returns to mtd. This v2 includes the change to the fsl_ifc_nand driver requested by Scott¹. ¹ http://lists.infradead.org/pipermail/linux-mtd/2012-April/040883.html Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by (freescale changes): Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-30Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6Linus Torvalds
Pull MTD changes from David Woodhouse: - Artem's cleanup of the MTD API continues apace. - Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others. - More work on DiskOnChip G3, new driver for DiskOnChip G4. - Clean up debug/warning printks in JFFS2 to use pr_<level>. Fix up various trivial conflicts, largely due to changes in calling conventions for things like dmaengine_prep_slave_sg() (new inline wrapper to hide new parameter, clashing with rewrite of previously last parameter that used to be an 'append' flag, and is now a bitmap of 'unsigned long flags'). (Also some header file fallout - like so many merges this merge window - and silly conflicts with sparse fixes) * tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits) mtd: docg3 add protection against concurrency mtd: docg3 refactor cascade floors structure mtd: docg3 increase write/erase timeout mtd: docg3 fix inbound calculations mtd: nand: gpmi: fix function annotations mtd: phram: fix section mismatch for phram_setup mtd: unify initialization of erase_info->fail_addr mtd: support ONFI multi lun NAND mtd: sm_ftl: fix typo in major number. mtd: add device-tree support to spear_smi mtd: spear_smi: Remove default partition information from driver mtd: Add device-tree support to fsmc_nand mtd: fix section mismatch for doc_probe_device mtd: nand/fsmc: Remove sparse warnings and errors mtd: nand/fsmc: Add DMA support mtd: nand/fsmc: Access the NAND device word by word whenever possible mtd: nand/fsmc: Use dev_err to report error scenario mtd: nand/fsmc: Use devm routines mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform mtd: fsmc_nand: add pm callbacks to support hibernation ...
2012-03-27mtd: flash drivers set ecc strengthMike Dunn
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>
2012-03-27mtd: do not use plain 0 as NULLArtem Bityutskiy
The first 3 arguments of 'mtd_device_parse_register()' are pointers, but many callers pass '0' instead of 'NULL'. Fix this globally. Thanks to coccinelle for making it easy to do with the following semantic patch: @@ expression mtd, types, parser_data, parts, nr_parts; @@ ( -mtd_device_parse_register(mtd, 0, parser_data, parts, nr_parts) +mtd_device_parse_register(mtd, NULL, parser_data, parts, nr_parts) | -mtd_device_parse_register(mtd, types, 0, parts, nr_parts) +mtd_device_parse_register(mtd, types, NULL, parts, nr_parts) | -mtd_device_parse_register(mtd, types, parser_data, 0, nr_parts) +mtd_device_parse_register(mtd, types, parser_data, NULL, nr_parts) ) Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-15atmel/nand: add DT supportJean-Christophe PLAGNIOL-VILLARD
Use a local copy of board informatin and fill with DT data. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-03-15mtd/atmel_nand: add on_flash_bbt to enable the use of On Flash BBTJean-Christophe PLAGNIOL-VILLARD
This will allow to enable it from the board. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: David Woodhouse <dwmw2@infradead.org>
2012-03-15ATMEL: fix nand ecc supportJean-Christophe PLAGNIOL-VILLARD
So we can now choose for the board the ecc mode (ecc soft, soft bch, no ecc and hardware). Set ecc mode in the boards to soft as currently in the driver. Move platform data to a common header include/linux/platform_data/atmel_nand.h Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: David Woodhouse <dwmw2@infradead.org>
2012-02-04Revert "mtd: atmel_nand: optimize read/write buffer functions"Artem Bityutskiy
This reverts commit fb5427508abbd635e877fabdf55795488119c2d6. The reason is that it breaks 16 bits NAND flash as it was reported by Nikolaus Voss and confirmed by Eric Bénard. Nicolas Ferre <nicolas.ferre@atmel.com> alco confirmed: "After double checking with designers, I must admit that I misunderstood the way of optimizing accesses to SMC. 16 bit nand is not so common those days..." Reported-by: Nikolaus Voss <n.voss@weinmann.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Cc: stable@kernel.org [3.1+]
2011-11-29ARM: at91/nand: use gpio_is_valid to check the gpioJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2011-09-11mtd: atmel_nand: optimize read/write buffer functionsNicolas Ferre
For PIO NAND access functions, we use the features of the SMC: - no need to take into account the NAND bus width: SMC will deal with this - use of an IO memcpy on the NAND chip-select space is able to generate proper SMC behavior. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-09-11mtd: atmel_nand: fix wrong use of 0 as NULLNicolas Ferre
Fixing this error: atmel_nand.c:718:20: warning: Using plain integer as NULL pointer Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-09-11mtd: atmel_nand.c: use mtd_device_parse_registerDmitry Eremin-Solenikov
Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-09-11mtd: atmel_nand don't specify default parsing optionsDmitry Eremin-Solenikov
Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-09-11mtd: ATMEL, AVR32: inline nand partition table accessDmitry Eremin-Solenikov
Currently atmel_nand driver used by AT91 and AVR32 calls a special callback which return nand partition table and number of partitions. However in all boards this callback returns just static data. So drop this callback and make atmel_nand use partition table provided statically via platform_data. Nicolas Ferre: I am in favor for a mainline inclusion through linux-mtd tree. Hans-Christian Egtvedt: I'm fine by sending the changes for AVR32 through linux-mtd Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-09-11mtd: nand: rename NAND_USE_FLASH_BBTBrian Norris
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>
2011-09-11mtd: nand: consolidate redundant flash-based BBT flagsBrian Norris
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>
2011-07-25Merge 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: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-06-21net: remove mm.h inclusion from netdevice.hAlexey Dobriyan
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually). To prevent mm.h inclusion via other channels also extract "enum dma_data_direction" definition into separate header. This tiny piece is what gluing netdevice.h with mm.h via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h". Removal of mm.h from scatterlist.h was tried and was found not feasible on most archs, so the link was cutoff earlier. Hope people are OK with tiny include file. Note, that mm_types.h is still dragged in, but it is a separate story. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-10treewide: Convert uses of struct resource to resource_size(ptr)Joe Perches
Several fixes as well where the +1 was missing. Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-25mtd: atmel_nand: convert to mtd_device_register()Jamie Iles
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>
2011-05-25mtd: atmel_nand: add missing include of linux/dmaengine.hHans-Christian Egtvedt
Including linux/dmaengine.h fixes the missing definition of the enum dma_ctrl_flags type used in atmel_nand_dma_op function. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-04-01mtd: atmel_nand: use CPU I/O when buffer is in vmalloc(ed) regionHong Xu
The previous way of dealing with vmalloc(ed) region by walking though the pages can not work well actually. We just fall back to CPU I/O when the buffer address is higher than `high_memory'. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-04-01mtd: atmel_nand: modify test case for using DMA operationsNicolas Ferre
We have better performances not using DMA for oob operations. Modify size test so that it is using DMA for size greater than oobsize. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-04-01mtd: atmel_nand: fix support for CPUs that do not support DMA accessHong Xu
use_dma was always "1" even if the CPU does not support DMA Tested on AT91SAM9261EK by Jean-Christophe PLAGNIOL-VILLARD Reported-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-04-01mtd: atmel_nand: trivial: change DMA usage information traceNicolas Ferre
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-11mtd: atmel_nand: Add DMA support to access NandflashHong Xu
Some SAM9 chips have the ability to perform DMA between CPU and SMC controller. This patch adds DMA support for SAM9RL, SAM9G45, SSAM9G46,AM9M10, SAM9M11. Signed-off-by: Hong Xu <hong.xu@atmel.com> Tested-by: Ryan Mallon <ryan@bluewatersys.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-06mtd: atmel_nand: fix warning: 'part_probes' defined but not usedAndreas Bießmann
This patch fixes drivers/mtd/nand/atmel_nand.c:372: warning: 'part_probes' defined but not used which is issued when CONFIG_MTD_PARTITIONS is defined but CONFIG_MTD_CMDLINE_PARTS not. Signed-off-by: Andreas Bießmann <biessmann@corscience.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-02-26mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()David Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-11-30mtd: error return -EIO instead of EIORoel Kluin
Return a negative error value instead of a positive Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-08mtd: atmel_nand: unused variable removedClaudio Scordino
Unused variable "eccpos" removed from atmel_nand driver. Signed-off-by: Claudio Scordino <claudio@evidence.eu.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: nand: add "page" parameter to all read_page/read_page_raw APIsSneha Narnakaje
This patch adds a new "page" parameter to all NAND read_page/read_page_raw APIs. The read_page API for the new mode ECC_HW_OOB_FIRST requires the page information to send the READOOB command and read the OOB area before the data area. Reviewed-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-06-25mtd: atmel_nand: Fix typo s/parititions/partitions/Thadeu Lima de Souza Cascardo
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-06-05mtd: add on-flash BBT support for Atmel NAND driverSimon Polette
Just add a new on-flash-bbt module parameter. Signed-off-by: Simon Polette <spolette@adetelgroup.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-02-16[ARM] 5400/1: Add support for inverted rdy_busy pin for Atmel nand device ↵Gregory CLEMENT
controller Add support for inverted rdy_busy pin for Atmel nand device controller It will fix building error on NeoCore926 board. Acked-by: Andrew Victor <linux@maxim.org.za> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Gregory CLEMENT <gclement@adeneo.adetelgroup.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-14[MTD] [NAND] Bug on atmel_nand HW ECC : OOB info not correctly writtenRichard Genoud
The functions that write the OOB info (on hardware ECC only) use the HW_SYNDROME method. This is not correct : the start position is "pos = eccsize + chunk" and should be eccsize. So, the standard (nand_write_oob_std) function should be used. This patch corrects this by using NAND_ECC_HW instead of NAND_ECC_HW_SYNDROME. This has only been tested on small pages nand flash. (if anyone can test it on large pages that would be great). kernel version : 2.6.27-rc2 (current git mtd-2.6) Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-11[MTD] [NAND] atmel_nand: Work around AT32AP7000 ECC erratumHaavard Skinnemoen
The ALE signal isn't correctly wired up to the ECC controller on the AP7000, so it starts calculating ECC during the address cycles. Work around this by resetting the ECC controller between the address and data cycles. Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-11[MTD] [NAND] atmel_nand speedup via {read,write}s{b,w}()David Brownell
This uses __raw_{read,write}s{b,w}() primitives to access data on NAND chips for more efficient I/O. On an arm926 with memory clocked at 100 MHz, this reduced the elapsed time for a 64 MiB read by 16%. ("dd" /dev/mtd0 to /dev/null, with an 8-bit NAND using hardware ECC and 128KiB blocksize.) Also some minor section tweaks: - Use platform_driver_probe() so no pointer to probe() lingers after that code has been removed at run-time. - Use __exit and __exit_p so the remove() code will normally be removed by the linker. Since these buffer read/write calls are new, this increases the runtime code footprint (by 88 bytes on my build, after the section tweaks). [haavard.skinnemoen@atmel.com: rebase onto atmel_nand rename] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-06-07[MTD] [NAND] Fix checkpatch warnings which showed up when atmel_nand.c movedDavid Woodhouse
Some of them, at least. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-07[MTD] [NAND] atmel_nand: Clean up and fix probe() error pathHåvard Skinnemoen
This fixes several bugs in the atmel_nand_probe() error path, including at least one memory leak. Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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