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2011-09-11mtd: nand: rename NAND_USE_FLASH_BBTBrian Norris1-1/+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 <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-09-11mtd: nand: consolidate redundant flash-based BBT flagsBrian Norris2-12/+9
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 <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-09-11mtd: nand: separate chip options / bbt_optionsBrian Norris1-0/+4
This patch handles the problems we've been having with using conflicting flags from nand.h and bbm.h in the same nand_chip.options field. We should try to separate these two spaces a little more clearly, and so I have added a bbt_options field to nand_chip. Important notes about nand_chip fields: * bbt_options field should contain ONLY flags from bbm.h. They should be able to pass safely to a nand_bbt_descr data structure. - BBT option flags start with the "NAND_BBT_" prefix. * options field should contian ONLY flags from nand.h. Ideally, they should not be involved in any BBT related options. - NAND chip option flags start with the "NAND_" prefix. * Every flag should have a nice comment explaining what the flag is. While this is not yet the case on all existing flags, please be sure to write one for new flags. Even better, you can help document the code better yourself! Please try to follow these conventions to make everyone's lives easier. Among the flags that are being moved to the new bbt_options field throughout various drivers, etc. are: * NAND_BBT_SCANLASTPAGE * NAND_BBT_SCAN2NDPAGE and there will be more to come. Signed-off-by: Brian Norris <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-09-11mtd: nand: remove NAND_BBT_SCANBYTE1AND6 optionBrian Norris1-2/+0
This patch reverts most of: commit 58373ff0afff4cc8ac40608872995f4d87eb72ec mtd: nand: more BB Detection refactoring and dynamic scan options According to the discussion at: http://lists.infradead.org/pipermail/linux-mtd/2011-May/035696.html the NAND_BBT_SCANBYTE1AND6 flag, although technically valid, can break some existing ECC layouts that use the 6th byte in the OOB for ECC data. Furthermore, we apparently do not need to scan both bytes 1 and 6 in the OOB region of the devices under consideration; instead, we only need to scan one or the other. Thus, the NAND_BBT_SCANBYTE1AND6 flag is at best unnecessary and at worst a regression. Signed-off-by: Brian Norris <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-07-22Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds1-6/+8
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: clarify the volume notification types' doc UBI: remove dead code UBI: dump stack when switching to R/O mode UBI: fix oops in error path UBI: switch debugging tests knobs to debugfs UBI: make it possible to use struct ubi_device in debug.h UBI: prepare debugging stuff to further debugfs conversion UBI: use debugfs for the extra checks knobs UBI: change the interface of a debugging check function
2011-06-23UBI: clarify the volume notification types' docDavid Wagner1-6/+8
I realized the new descriptions of ADDED and REMOVED could also be misleading: they can also be triggered after using a userland util (ubi{mk,rm}vol). Artem: amend the commentaries Signed-off-by David Wagner <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-06-01mtd: fix physmap.h warningsRandy Dunlap1-0/+1
Fix build warnings in physmap.h: include/linux/mtd/physmap.h:25: warning: 'struct platform_device' declared inside parameter list include/linux/mtd/physmap.h:25: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/mtd/physmap.h:26: warning: 'struct platform_device' declared inside parameter list include/linux/mtd/physmap.h:27: warning: 'struct platform_device' declared inside parameter list Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-27Merge git://git.infradead.org/mtd-2.6Linus Torvalds4-24/+17
* git://git.infradead.org/mtd-2.6: (97 commits) mtd: kill CONFIG_MTD_PARTITIONS mtd: remove add_mtd_partitions, add_mtd_device and friends mtd: convert remaining users to mtd_device_register() mtd: samsung onenand: convert to mtd_device_register() mtd: omap2 onenand: convert to mtd_device_register() mtd: txx9ndfmc: convert to mtd_device_register() mtd: tmio_nand: convert to mtd_device_register() mtd: socrates_nand: convert to mtd_device_register() mtd: sharpsl: convert to mtd_device_register() mtd: s3c2410 nand: convert to mtd_device_register() mtd: ppchameleonevb: convert to mtd_device_register() mtd: orion_nand: convert to mtd_device_register() mtd: omap2: convert to mtd_device_register() mtd: nomadik_nand: convert to mtd_device_register() mtd: ndfc: convert to mtd_device_register() mtd: mxc_nand: convert to mtd_device_register() mtd: mpc5121_nfc: convert to mtd_device_register() mtd: jz4740_nand: convert to mtd_device_register() mtd: h1910: convert to mtd_device_register() mtd: fsmc_nand: convert to mtd_device_register() ... Fixed up trivial conflicts in - drivers/mtd/maps/integrator-flash.c: removed in ARM tree - drivers/mtd/maps/physmap.c: addition of afs partition probe type clashing with removal of CONFIG_MTD_PARTITIONS
2011-05-25mtd: kill CONFIG_MTD_PARTITIONSJamie Iles1-8/+0
Now that none of the drivers use CONFIG_MTD_PARTITIONS we can remove it from Kconfig and the last remaining uses. Signed-off-by: Jamie Iles <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-25mtd: remove add_mtd_partitions, add_mtd_device and friendsJamie Iles2-12/+0
These symbols are replaced with mtd_device_register() (and removal with mtd_device_unregister()) for public registration. Signed-off-by: Jamie Iles <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-25mtd: physmap: convert to mtd_device_register()Jamie Iles1-4/+0
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Signed-off-by: Jamie Iles <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-25mtd: provide of_mtd_parse_partitions for !CONFIG_MTD_OF_PARTSJamie Iles1-0/+9
If we don't have OpenFirmware enabled then provide a stub of_mtd_parse_partitions that returns no partitions so drivers don't need ifdeffery inside. Signed-off-by: Jamie Iles <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-25mtd: introduce mtd_device_(un)register()Jamie Iles2-1/+7
To prepare for the removal of add_mtd_device and add_mtd_partitions(), introduce mtd_device_register(). This will create partitions if they are supplied or register the whole device if there are no partitions. Once all drivers are converted to use mtd_device_register(), add_mtd_device() and add_mtd_partitions() will be made internal only. v2: move kerneldoc to implementation file and fixup some kerneldoc warnings. Artem: tweak comments: remove junk tabs, use dots consistently. Signed-off-by: Jamie Iles <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-25mtd: create function to perform large allocationsGrant Erickson1-0/+2
Introduce a common function to handle large, contiguous kmalloc buffer allocations by exponentially backing off on the size of the requested kernel transfer buffer until it succeeds or until the requested transfer buffer size falls below the page size. This helps ensure the operation can succeed under low-memory, highly- fragmented situations albeit somewhat more slowly. Artem: so this patch solves the problem that the kernel tries to kmalloc too large buffers, which (a) may fail and does fail - people complain about this, and (b) slows down the system in case of high memory fragmentation, because the kernel starts dropping caches, writing back, swapping, etc. But we do not really have to allocate a lot of memory to do the I/O, we may do this even with as little as one min. I/O unit (NAND page) of RAM. So the idea of this patch is that if the user asks to read or write a lot, we try to kmalloc a lot, with GFP flags which make the kernel _not_ drop caches, etc. If we can allocate it - good, if not - we try to allocate twice as less, and so on, until we reach the min. I/O unit size, which is our last resort allocation and use the normal GFP_KERNEL flag. Artem: re-write the allocation function so that it makes sure the allocated buffer is aligned to the min. I/O size of the flash. Signed-off-by: Grant Erickson <[email protected]> Tested-by: Ben Gardiner <[email protected]> Tested-by: Stefano Babic <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-25mtd: nand: renumber conflicting BBT flagsBrian Norris1-2/+2
The NAND_USE_FLASH_BBT_NO_OOB and NAND_CREATE_EMPTY_BBT flags conflict with the NAND_BBT_SCANBYTE1AND6 and NAND_BBT_DYNAMICSTRUCT flags, respectively. This change will allow us to utilize these options independently. Signed-off-by: Brian Norris <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-05-24Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds1-2/+2
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: switch to dynamic printks UBI: turn some macros into static inline UBI: improve checking in debugging prints UBI: fix typo in a message UBI: fix minor stylistic issues UBI: use __packed instead of __attribute__((packed)) UBI: cleanup comments around volume properties UBI: re-name set volume properties ioctl UBI: make the control character device non-seekable
2011-05-20ARM: 6910/1: MTD: physmap: let set_vpp() pass a platform_device instead of a ↵Marc Zyngier1-1/+1
map_info The set_vpp() method provided by physmap passes a map_info back to the platform code, which has little relevance as far as the platform is concerned (this parameter is completely unused). Instead, pass the platform_device, which can be used in the pismo driver to retrieve some important information in a nicer way, instead of the hack that was in place. The empty set_vpp function in board-at572d940hf_ek.c is left untouched, as the board/SoC is scheduled for removal. Cc: Andrew Victor <[email protected]> Cc: Nicolas Ferre <[email protected]> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]> Cc: Philipp Zabel <[email protected]> Cc: Eric Miao <[email protected]> Cc: Ben Dooks <[email protected]> Acked-by: Artem Bityutskiy <[email protected]> Acked-by: David Woodhouse <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Russell King <[email protected]>
2011-05-20ARM: 6904/1: MTD: Add integrator-flash feature to physmapMarc Zyngier1-0/+2
In the process of moving platforms away from integrator-flash (aka armflash), add to physmap the few features that make armflash unique: - optionnal probing for the AFS partition type - init() and exit() methods, used by Integrator to control write access to the various onboard programmable components Signed-off-by: Marc Zyngier <[email protected]> Acked-by: Catalin Marinas <[email protected]> Acked-by: Artem Bityutskiy <[email protected]> Acked-by: David Woodhouse <[email protected]> Signed-off-by: Russell King <[email protected]>
2011-04-14UBI: fix minor stylistic issuesArtem Bityutskiy1-2/+2
Fix checkpatch.pl errors and warnings: * space before tab * line over 80 characters * include linux/ioctl.h instead of asm/ioctl.h Signed-off-by: Artem Bityutskiy <[email protected]>
2011-03-31Fix common misspellingsLucas De Marchi3-5/+5
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <[email protected]>
2011-03-25Merge branch 'master' of ↵Artem Bityutskiy3-0/+24
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits) [media] rc: update for bitop name changes fs: simplify iget & friends fs: pull inode->i_lock up out of writeback_single_inode fs: rename inode_lock to inode_hash_lock fs: move i_wb_list out from under inode_lock fs: move i_sb_list out from under inode_lock fs: remove inode_lock from iput_final and prune_icache fs: Lock the inode LRU list separately fs: factor inode disposal fs: protect inode->i_state with inode->i_lock lib, arch: add filter argument to show_mem and fix private implementations SLUB: Write to per cpu data when allocating it slub: Fix debugobjects with lockless fastpath autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd() autofs4 - remove autofs4_lock autofs4 - fix d_manage() return on rcu-walk autofs4 - fix autofs4_expire_indirect() traversal autofs4 - fix dentry leak in autofs4_expire_direct() autofs4 - reinstate last used update on access vfs - check non-mountpoint dentry might block in __follow_mount_rcu() ... NOTE! This merge commit was created to fix compilation error. The block tree was merged upstream and removed the 'elv_queue_empty()' function which the new 'mtdswap' driver is using. So a simple merge of the mtd tree with upstream does not compile. And the mtd tree has already be published, so re-basing it is not an option. To fix this unfortunate situation, I had to merge upstream into the mtd-2.6.git tree without committing, put the fixup patch on top of this, and then commit this. The result is that we do not have commits which do not compile. In other words, this merge commit "merges" 3 things: the MTD tree, the upstream tree, and the fixup patch.
2011-03-18Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6Linus Torvalds1-0/+22
* 'linux-next' of git://git.infradead.org/ubifs-2.6: (25 commits) UBIFS: clean-up commentaries UBIFS: save 128KiB or more RAM UBIFS: allocate orphans scan buffer on demand UBIFS: allocate lpt dump buffer on demand UBIFS: allocate ltab checking buffer on demand UBIFS: allocate scanning buffer on demand UBIFS: allocate dump buffer on demand UBIFS: do not check data crc by default UBIFS: simplify UBIFS Kconfig menu UBIFS: print max. index node size UBIFS: handle allocation failures in UBIFS write path UBIFS: use max_write_size during recovery UBIFS: use max_write_size for write-buffers UBIFS: introduce write-buffer size field UBI: incorporate LEB offset information UBIFS: incorporate maximum write size UBI: provide LEB offset information UBI: incorporate maximum write size UBIFS: fix LEB number in printk UBIFS: restrict world-writable debugfs files ...
2011-03-11mtd: nand: add software BCH ECC supportIvan Djelic2-0/+75
This patch adds software BCH ECC support to mtd, in order to handle recent NAND device ecc requirements (4 bits or more). It does so by adding a new ecc mode (NAND_ECC_SOFT_BCH) for use by board drivers, and a new Kconfig option to enable BCH support. It relies on the generic BCH library introduced in a previous patch. When a board driver uses mode NAND_ECC_SOFT_BCH, it should also set fields chip->ecc.size and chip->ecc.bytes to select BCH ecc data size and required error correction capability. See nand_bch_init() documentation for details. It has been tested on the following platforms using mtd-utils, UBI and UBIFS: x86 (with nandsim), arm926ejs. Signed-off-by: Ivan Djelic <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-03-11mtd: cfi: add support for AMIC flashes (e.g. A29L160AT)Steffen Sledz1-0/+1
Signed-off-by: Steffen Sledz <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-03-11mtd: onenand: add new option to control initial onenand unlockingRoman Tereshonkov1-0/+1
A new option ONENAND_SKIP_INITIAL_UNLOCKING is added. This allows to disable initial onenand unlocking when the driver is initialized. Signed-off-by: Roman Tereshonkov <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-03-11mtd: NOR flash driver for OMAP-L137/AM17xDavid Griego1-0/+29
OMAP-L137/AM17x has limited number of dedicated EMIFA address pins, enough to interface directly to an SDRAM. If a device such as an asynchronous flash needs to be attached to the EMIFA, then either GPIO pins or a chip select may be used to control the flash device's upper address lines. This patch adds support for the NOR flash on the OMAP-L137/ AM17x user interface daughter board using the latch-addr-flash MTD mapping driver which allows flashes to be partially physically addressed. The upper address lines are set by a board specific code which is a separate patch. Signed-off-by: David Griego <[email protected]> Signed-off-by: Aleksey Makarov <[email protected]> Signed-off-by: Sergei Shtylyov <[email protected]> Signed-off-by: Savinay Dharmappa <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-03-11mtd_blkdevs: Add background processing supportJarkko Lavinen1-0/+2
Add a new background method into mtd_blktrans_ops, add background support into mtd_blktrans_thread(), and add mtd_blktrans_cease_background(). If the mtd blktrans dev has the background support, the thread will call background function when the request queue becomes empty. The background operation may run as long as needs to until mtd_blktrans_cease_background() tells to stop. Signed-off-by: Jarkko Lavinen <[email protected]> Tested-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-03-08UBI: provide LEB offset informationArtem Bityutskiy1-0/+3
Provide the LEB offset information in the UBI device information data structure. This piece of information is required by UBIFS to find out what are the LEB offsets which are aligned to the max. write size. If LEB offset not aligned to max. write size, then UBIFS has to take this into account to write more optimally. Signed-off-by: Artem Bityutskiy <[email protected]>
2011-03-08UBI: incorporate maximum write sizeArtem Bityutskiy1-0/+19
Incorporate MTD write buffer size into UBI device information because UBIFS needs this field. UBI does not use it ATM, just provides to upper layers in 'struct ubi_device_info'. Signed-off-by: Artem Bityutskiy <[email protected]>
2011-02-17OMAP: OneNAND: fix 104MHz supportAdrian Hunter1-0/+1
104MHz needs a latency of 8 clock cycles and the VHF flag must be set. Also t_rdyo is specified as "not applicable" so pick a lower value, and force at least 1 clk between AVD High to OE Low. Signed-off-by: Adrian Hunter <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2011-01-06mtd: add writebufsize field to mtd_info structAnatolij Gustschin1-0/+11
This field will be used to indicate the write buffer size of the MTD device. UBI will set it's minimal I/O unit size (min_io_size) to the indicated write buffer size. By this change we intend to fix failed recovery of UBIFS partitions we currently observe on NOR flash when mounting the partition after unclean unmount. Currently the min_io_size is set to mtd->writesize (which is 1 byte for NOR flash). But flash programming is often done from prepared write buffer containing multiple bytes and is performed in one programming operation which could be interrupted by a power cut or a system reset causing corrupted (partially written) areas in a flash sector. Knowing the size of potentially corrupted areas UBIFS scanning and recovery algorithms are able to perform successful recovery. In case of NOR flash minimal I/O size must be equal to the maximal size of the write buffer used by embedded flash programming algorithm. In case of NAND flash mtd->writebufsize should be equivalent to mtd->writesize. The subsequent patches will add mtd->writebufsize initialization where needed. Signed-off-by: Anatolij Gustschin <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2011-01-06mtd: OneNAND: add enable / disable methods to onenand_chipAdrian Hunter1-0/+2
Add enable / disable methods called from get_device() / release_device(). These can be used, for example, to allow the driver to prevent the voltage regulator from being put to sleep while OneNAND is in use. Signed-off-by: Adrian Hunter <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: FSMC NAND fix obvious speling errorsLinus Walleij1-3/+3
Fix spelling in the interface file. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: FSMC NAND use the PrimeCell identifier macrosLinus Walleij1-19/+0
The FSMC actually has a standard ARM PrimeCell ID register, and the "revision" part of that register contains the thing that the code is looking at. Reuse the infrastructure from the AMBA bus abstraction and rid local defines. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: fix master device identification for mtd repartitionRoman Tereshonkov1-1/+1
Function mtd_has_master renamed as mtd_is_partition to follow the function logic. The patch fixes the problem of checking the right mtd device for partition creation. To delete partition checking is not needed here so as it is done in mtd_del_partition. By master we consider the mtd device which does not belong to any partition. Signed-off-by: Roman Tereshonkov <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: fix nand kernel-doc warningsRandy Dunlap1-0/+2
Warning(include/linux/mtd/nand.h:543): No description found for parameter 'badblockbits' Warning(drivers/mtd/nand/nand_bbt.c:1101): No description found for parameter 'mtd' Signed-off-by: Randy Dunlap <[email protected]> Cc: David Woodhouse <[email protected]> Cc: [email protected] Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: cfi_fixup: remove unused 'param' parameterGuillaume LECERF1-2/+1
The 'param' parameter has never been used since its introduction, so simply remove it. Signed-off-by: Guillaume LECERF <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: fsmc.h: including linux/io.h for definition of readlViresh Kumar1-0/+1
Signed-off-by: Viresh Kumar <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-12-03mtd: onenand: add option and variable for cache program featureRoman Tereshonkov1-0/+12
A new option is added for cache program feature. A new variable ongoing is introduced for onenand_chip to handle the multi-command cache program operation. Signed-off-by: Roman Tereshonkov <[email protected]> Acked-by: Kyungmin Park <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-30Merge git://git.infradead.org/mtd-2.6Linus Torvalds7-169/+479
* git://git.infradead.org/mtd-2.6: (82 commits) mtd: fix build error in m25p80.c mtd: Remove redundant mutex from mtd_blkdevs.c MTD: Fix wrong check register_blkdev return value Revert "mtd: cleanup Kconfig dependencies" mtd: cfi_cmdset_0002: make sector erase command variable mtd: cfi_cmdset_0002: add CFI detection for SST 38VF640x chips mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode mtd: cfi_cmdset_0001: use defined value of P_ID_INTEL_PERFORMANCE instead of hardcoded one block2mtd: dubious assignment P4080/mtd: Fix the freescale lbc issue with 36bit mode P4080/eLBC: Make Freescale elbc interrupt common to elbc devices mtd: phram: use KBUILD_MODNAME mtd: OneNAND: S5PC110: Fix double call suspend & resume function mtd: nand: fix MTD_MODE_RAW writes jffs2: use kmemdup mtd: sm_ftl: cosmetic, use bool when possible mtd: r852: remove useless pci powerup/down from suspend/resume routines mtd: blktrans: fix a race vs kthread_stop mtd: blktrans: kill BKL mtd: allow to unload the mtdtrans module if its block devices aren't open ... Fix up trivial whitespace-introduced conflict in drivers/mtd/mtdchar.c
2010-10-29convert get_sb_mtd() users to ->mount()Al Viro1-3/+2
Signed-off-by: Al Viro <[email protected]>
2010-10-26mtd: cfi_cmdset_0002: make sector erase command variableGuillaume LECERF1-0/+1
Some old SST chips use 0x50 as sector erase command, instead of 0x30. Make this value variable to handle such chips. Signed-off-by: Guillaume LECERF <[email protected]> Acked-by: Wolfram Sang <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: remove junk tabs in nand.hSebastian Andrzej Siewior1-168/+147
Remove tabs between type and name. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: cleanup nand.hSebastian Andrzej Siewior1-56/+99
- *var instead of * var - proper multiline comment - func(args) instead of func (args) - 80 lines So from |total: 2 errors, 37 warnings, 654 lines checked we got to one warning. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: nand: introduce NAND_CREATE_EMPTY_BBTSebastian Andrzej Siewior2-1/+3
it will create an empty BBT table without considering vendor's BBT information. Vendor's information may be unavailable if the NAND controller has a different DATA & OOB layout or this information may be allready purged. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: nand: add support for BBT without OOBSebastian Andrzej Siewior2-2/+11
The first (sixt) byte in the OOB area contains vendor's bad block information. During identification of the NAND chip this information is collected by scanning the complete chip. The option NAND_USE_FLASH_BBT is used to store this information in a sector so we don't have to scan the complete flash. Unfortunately the code stores a marker in order to recognize the BBT in the OOB area. This will fail if the OOB area is completely used for ECC. This patch introduces the option NAND_USE_FLASH_BBT_NO_OOB which has to be used with NAND_USE_FLASH_BBT. It will then store BBT on flash without touching the OOB area. The BBT format on flash remains same except the first page starts with the recognition pattern followed by the version byte. This change was tested in nandsim and it looks good so far :) Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: add init_size hook for NAND driverHuang Shijie1-0/+6
Not all the NAND devices have all the information in additional id bytes. So add a hook in the nand_chip{} is a good method to calculate the right value of oobsize, erasesize and so on. Without the hook,you will get the wrong value, and you have to hack in the ->scan_bbt() to change the wrong value which make the code mess. Signed-off-by: Huang Shijie <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: prepare partition add and del functions for ioctl requestsRoman Tereshonkov1-0/+5
mtd_is_master, mtd_add_partition and mtd_del_partition functions are added to give the possibility of partition manipulation by ioctl request. The old partition add function is modified to fit the dynamic allocation. Signed-off-by: Roman Tereshonkov <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-25mtd: generic FSMC NAND MTD driverLinus Walleij1-0/+181
This is the same driver submitted by ST Micros SPEAr team but generalized and tested on the ST-Ericsson U300. It probably easily works on the NHK8815 too. Signed-off-by: Vipin Kumar <[email protected]> Signed-off-by: Rajeev Kumar <[email protected]> Signed-off-by: Shiraz Hashim <[email protected]> Signed-off-by: Viresh Kumar <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
2010-10-24mtd: nand: add support for reading ONFI parameters from NAND deviceFlorian Fainelli1-0/+68
This patch adds support for reading NAND device ONFI parameters and use the ONFI informations to define its geometry. In case the device supports ONFI, the onfi_version field in struct nand_chip contains the version (BCD) and the onfi_params structure can be used by drivers to set up timings and such. We currently only support ONFI 1.0 parameters. Signed-off-by: Brian Norris <[email protected]> Signed-off-by: Matthieu Castet <[email protected]> Signed-off-by: Maxime Bizon <[email protected]> Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David Woodhouse <[email protected]>
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