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* | mtd: introduce mtd_block_isbad interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_resume interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_suspend interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_is_locked interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_unlock interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_lock interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_sync interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_writev interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_lock_user_prot_reg interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_write_user_prot_reg interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_read_user_prot_reg interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_get_user_prot_info interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_read_fact_prot_reg interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_get_fact_prot_info interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_write_oob interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_read_oob interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_panic_write interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_write interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_read interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_get_unmapped_area interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_unpoint interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_point interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: introduce mtd_erase interfaceArtem Bityutskiy2012-01-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is part of a patch-set which changes the MTD interface from 'mtd->func()' form to 'mtd_func()' form. We need this because we want to add common code to to all drivers in the mtd core level, which is impossible with the current interface when MTD clients call driver functions like 'read()' or 'write()' directly. At this point we just introduce a new inline wrapper function, but later some of them are expected to gain more code. E.g., the input parameters check should be moved to the wrappers rather than be duplicated at many drivers. This particular patch introduced the 'mtd_erase()' interface. The following patches add all the other interfaces one by one. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: map.h: fix arm cross-build failureArtem Bityutskiy2012-01-09
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following build failure: In file included from include/linux/mtd/qinfo.h:4:0, from include/linux/mtd/pfow.h:7, from drivers/mtd/lpddr/lpddr_cmds.c:27: include/linux/mtd/map.h: In function 'inline_map_read': include/linux/mtd/map.h:409:3: error: implicit declaration of function 'BUILD_BUG_ON' [-Werror=implicit-function-declaration] Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: maps: physmap: allow partition parsers for physmap_flash_dataJonas Gorski2012-01-09
| | | | | | | | | | | | | | | | | | | | Arch setup code might want to use their own partition parsers, but still use the generic physmap flash driver. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: cfi: Allow per-mapping CFI device endiannessAaron Sierra2012-01-09
| | | | | | | | | | | | | | | | | | | | | | This patch allows each CFI device map to use its own endianness. The globally defined CFI endianness (CONFIG_MTD_CFI_NOSWAP, CONFIG_MTD_CFI_BE_BYTE_SWAP or CONFIG_MTD_CFI_LE_BYTE_SWAP) becomes the default value which can be overridden by a driver for a particular device. Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: nand: add Macronix manufacturerBrian Norris2012-01-09
|/ | | | | | | | | Macronix is produing SLC NAND MX30LF1208AA, so add their manufacturer code to the manufacturer lists. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge git://git.infradead.org/mtd-2.6Linus Torvalds2011-11-07
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (226 commits) mtd: tests: annotate as DANGEROUS in Kconfig mtd: tests: don't use mtd0 as a default mtd: clean up usage of MTD_DOCPROBE_ADDRESS jffs2: add compr=lzo and compr=zlib options jffs2: implement mount option parsing and compression overriding mtd: nand: initialize ops.mode mtd: provide an alias for the redboot module name mtd: m25p80: don't probe device which has status of 'disabled' mtd: nand_h1900 never worked mtd: Add DiskOnChip G3 support mtd: m25p80: add EON flash EN25Q32B into spi flash id table mtd: mark block device queue as non-rotational mtd: r852: make r852_pm_ops static mtd: m25p80: add support for at25df321a spi data flash mtd: mxc_nand: preset_v1_v2: unlock all NAND flash blocks mtd: nand: switch `check_pattern()' to standard `memcmp()' mtd: nand: invalidate cache on unaligned reads mtd: nand: do not scan bad blocks with NAND_BBT_NO_OOB set mtd: nand: wait to set BBT version mtd: nand: scrub BBT on ECC errors ... Fix up trivial conflicts: - arch/arm/mach-at91/board-usb-a9260.c Merged into board-usb-a926x.c - drivers/mtd/maps/lantiq-flash.c add_mtd_partitions -> mtd_device_register vs changed to use mtd_device_parse_register.
| * mtd: define `mtd_is_*()' functionsBrian Norris2011-09-21
| | | | | | | | | | | | | | | | | | These functions can be used instead of referencing -EUCLEAN and -EBADMSG all over the place. They should help make code a little bit more readable. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: nand: kill member `ops' of `struct nand_chip'Brian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | The nand_chip.ops field is a struct that is passed around globally with no particular reason. Every time it is used, it could just as easily be replaced with a local struct that is updated on each operation. So make it local. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: document ABIBrian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | We're missing a lot of important documentation in include/mtd/mtd-abi.h: * add a simple description of each ioctl (feel free to expand!) * give full explanations of recently added and modified operations * explain the usage of "RAW" that appear in different modes and types of operations * fix some comment style along the way Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: rename MTD_OOB_* to MTD_OPS_*Brian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | These modes are not necessarily for OOB only. Particularly, MTD_OOB_RAW affected operations on in-band page data as well. To clarify these options and to emphasize that their effect is applied per-operation, we change the primary prefix to MTD_OPS_. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: move mtd_oob_mode_t to shared kernel/user spaceBrian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | We will want to use the MTD_OOB_{PLACE,AUTO,RAW} modes in user-space applications through the introduction of new ioctls, so we should make this enum a shared type. This enum is now anonymous. Artem: tweaked the patch. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: support reading OOB without ECCBrian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes issues with `nanddump -n' and the MEMREADOOB[64] ioctls on hardware that performs error correction when reading only OOB data. A driver for such hardware needs to know when we're doing a RAW vs. a normal write, but mtd_do_read_oob does not pass such information to the lower layers (e.g., NAND). We should pass MTD_OOB_RAW or MTD_OOB_PLACE based on the MTD file mode. For now, most drivers can get away with just setting: chip->ecc.read_oob_raw = chip->ecc.read_oob This is done by default; but for systems that behave as described above, you must supply your own replacement function. This was tested with nandsim as well as on actual SLC NAND. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Jim Quinlan <jim2101024@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: nand: document nand_chip.oob_poiBrian Norris2011-09-11
| | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: support writing OOB without ECCBrian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes issues with `nandwrite -n -o' and the MEMWRITEOOB[64] ioctls on hardware that writes ECC when writing OOB. The problem arises as follows: `nandwrite -n' can write page data to flash without applying ECC, but when used with the `-o' option, ECC is applied (incorrectly), contrary to the `--noecc' option. I found that this is the case because my hardware computes and writes ECC data to flash upon either OOB write or page write. Thus, to support a proper "no ECC" write, my driver must know when we're performing a raw OOB write vs. a normal ECC OOB write. However, MTD does not pass any raw mode information to the write_oob functions. This patch addresses the problems by: 1) Passing MTD_OOB_RAW down to lower layers, instead of just defaulting to MTD_OOB_PLACE 2) Handling MTD_OOB_RAW within the NAND layer's `nand_do_write_oob' 3) Adding a new (replaceable) function pointer in struct ecc_ctrl; this function should support writing OOB without ECC data. Current hardware often can use the same OOB write function when writing either with or without ECC This was tested with nandsim as well as on actual SLC NAND. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Jim Quinlan <jim2101024@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: style fixups in multi-line comment, indentationBrian Norris2011-09-11
| | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: nand: fix spelling error (date => data)Brian Norris2011-09-11
| | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: remove CONFIG_MTD_DEBUGBrian Norris2011-09-11
| | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
| * mtd: plat-nand: Fixup kerneldoc for struct platform_nand_chipTobias Klauser2011-09-11
| | | | | | | | | | | | | | | | | | The set_parts and priv members of struct platform_nand_chip where removed in commit c36a6ef3845262ade529afb9f458738b1f196f83 but the kerneldoc wasn't updated. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
| * mtd: spelling, capitalization, uniformityBrian Norris2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Therefor -> Therefore [Intern], [Internal] -> [INTERN] [REPLACABLE] -> [REPLACEABLE] syndrom, syndom -> syndrome ecc -> ECC buswith -> buswidth endianess -> endianness dont -> don't occures -> occurs independend -> independent wihin -> within erease -> erase blockes -> blocks ... Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: drop mtd_device_registerDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | mtd_device_register() is a limited version of mtd_device_parse_register. Replace it with macro calling mtd_device_parse_register(). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: remove put_partition_parser() from public headerDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | There is no need to pollute public header with a definition private to mtdpart.c. Move it from mtd/partitions.h to mtdpart.c Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: hide parse_mtd_partitionsDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | | | There is no need to export parse_mtd_partitions() now , as it's fully handled by registration functions. So move the definition to private header and remove respective EXPORT_SYMBOL_GPL. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: OneNAND: Detect the correct NOP when 4KiB pagesizeKyungmin Park2011-09-11
| | | | | | | | | | | | | | | | | | | | | | There are two different 4KiB pagesize chips KFM4G16Q4M series have NOP 4 with version ID 0x0131 But KFM4G16Q5M has NOP 1 with versoin ID 0x013e Note that Q5M means that it has NOP 1. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: drop of_mtd_parse_partitions()Dmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | All users have been converted to call of_mtd_parse_partitions through parse_mtd_partitions() multiplexer. Drop obsolete API. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
| * mtd: prepare to convert of_mtd_parse_partitions to partition parserDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | Prepare to convert of_mtd_parse_partitions() to usual partitions parser: 1) Register ofpart parser 2) Internally don't use passed device for error printing 3) Add device_node to mtd_part_parser_data struct 4) Move of_mtd_parse_partitions from __devinit to common text section 5) add ofpart to the default list of partition parsers Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
| * mtd: abstract last MTD partition parser argumentDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | Encapsulate last MTD partition parser argument into a separate structure. Currently it holds only 'origin' field for RedBoot parser, but will be extended in future to contain at least device_node for OF devices. Amended commentary to make kerneldoc happy Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
| * mtd: add new API for handling MTD registrationDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lots (nearly all) mtd drivers contain nearly the similar code that calls parse_mtd_partitions, provides some platform-default values, if parsing fails, and registers mtd device. This is an aim to provide single implementation of this scenario: mtd_device_parse_register() which will handle all this parsing and defaults. Artem: amended comments Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * mtd: plat-nand: drop unused fields from platform_nand_dataDmitry Eremin-Solenikov2011-09-11
| | | | | | | | | | | | | | | | Drop now unused set_parts from struct platform_nand_data. Also, while we are at it, drop long unused priv field from platform_nand_data. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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