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2015-12-09mtd: partitions: make parsers return 'const' partition arraysBrian Norris1-1/+1
We only want to modify these arrays inside the parser "drivers", so the drivers should construct them however they like, then return them as immutable arrays. This will make other refactorings easier. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2015-11-19mtd: kill off MTD partition parser boilerplateBrian Norris1-16/+1
Most parsers can be handled with our new boilerplate-reducing macro. There are a few that can't be (cmdlineparts and ofpart). Also kill off the owner assignments, since register_mtd_parser() now takes care of that. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: make register_mtd_parser return voidAxel Lin1-1/+2
register_mtd_parser never fails; hence make it return void. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2012-03-27mtd: redboot: remove useless codeArtem Bityutskiy1-4/+2
We do not need to invoke 'mtd_can_have_bb()' before invoking 'mtd_block_isbad()' because the latter already handles the case when the MTD device does not support bad blocks. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: introduce mtd_can_have_bb helperArtem Bityutskiy1-2/+2
This patch introduces new 'mtd_can_have_bb()' helper function which checks whether the flash can have bad eraseblocks. Then it changes all the direct 'mtd->block_isbad' use cases with 'mtd_can_have_bb()'. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: introduce mtd_block_isbad interfaceArtem Bityutskiy1-2/+2
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: introduce mtd_read interfaceArtem Bityutskiy1-2/+2
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-11-07Merge git://git.infradead.org/mtd-2.6Linus Torvalds1-7/+9
* 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.
2011-10-31mtd: Add module.h to drivers users that were implicitly using it.Paul Gortmaker1-0/+1
We are cleaning up the implicit presence of module.h that these drivers are taking advantage of. Fix them in advance of the cleanup operation. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-16mtd: provide an alias for the redboot module nameAndres Salomon1-0/+3
parse_mtd_partitions takes a list of partition types; if the driver isn't loaded, it attempts to load it, and then it grabs the partition parser. For redboot, the module name is "redboot.ko", while the parser name is "RedBoot". Since modprobe is case-sensitive, attempting to modprobe "RedBoot" will never work. I suspect the embedded systems that make use of redboot just always manually loaded redboot prior to loading their specific nand chip drivers (or statically compiled it in). Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: stable@kernel.org
2011-09-11mtd: abstract last MTD partition parser argumentDmitry Eremin-Solenikov1-7/+6
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>
2010-08-08mtd: Update copyright noticesDavid Woodhouse1-0/+18
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-07-11Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6David Woodhouse1-1/+1
2008-06-06Fix various old email addresses for dwmw2David Woodhouse1-1/+1
Although if people have questions about ARCnet, perhaps it's _better_ for them to be mailing dwmw2@cam.ac.uk about it... Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-04MTD/JFFS2: remove CVS keywordsAdrian Bunk1-2/+0
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>
2007-10-28[MTD] Skip bad blocks when checking for RedBoot partition tableDavid Woodhouse1-5/+20
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-10[MTD] Improve heuristic for detecting wrong-endian RedBoot partition tableDavid Woodhouse1-2/+11
Also limit the amount we scan to one eraseblock. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-10[MTD] Fix RedBoot partition parsing regression harder.Rod Whitby1-3/+5
Correct the location of the recalculation of the FIS directory size, and also add the same recalculation for the byte-swapped case. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09[MTD] Don't oops when the RedBoot partition table is emptyMartin Michlmayr1-1/+1
This fixes a regression with the RedBoot parsing code introduced by commit 0b47d654089c5ce3f2ea26a4485db9bcead1e515 Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08[MTD] Support combined RedBoot FIS directory and configuration areaRod Whitby1-3/+20
RedBoot supports storing the FIS directory and the RedBoot configuration area in the same block of flash memory. This is not the most common RedBoot configuration, but it is used on commercially available boards supported by the kernel. A recent patch to mtd/redboot.c (http://lkml.org/lkml/2006/3/20/410) which corrected the skipping of deleted table entries has exposed the latent problem of the kernel redboot parser running off the end of the FIS directory and interpreting the RedBoot configuration information as table entries. This patch terminates the table parsing when the first truly empty entry is found (table entry deletion only clears the first byte of the name, so two cleared bytes in a row indicates the end of the table), thereby supporting the combined redboot FIS directory and RedBoot configuration information flash layout scenario. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-01[MTD] redboot partition combined fis / config problemYoshinori Sato1-0/+3
Can't analyze FIS directory in CYGSEM_REDBOOT_FLASH_COMBINED_FIS_AND_CONFIG really. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28[MTD] replace kmalloc+memset with kzallocBurman Yan1-3/+1
Signed-off-by: Yan Burman <yan_952@hotmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16[MTD] Fix build warnings in RedBoot MTD partition parser.Ben Dooks1-9/+9
Fix build warnings from drivers/mtd/redboot.c due to use of `unsigned long` in `struct fis_image_desc` for fields being passed to swab32s() which expects __u32 * Change the entries to uint32_t to make them compatible with the swab32s() function Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-03-31[PATCH] mtd/redboot: Handle holes in fis tablePeter Korsgaard1-5/+1
Redboot simply sets the first character of a fis entry to 0xff on "fis delete". The kernel redboot parser stops parsing on such an entry, and without this patch any entries after a deleted image would not be detected. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-02[PATCH] "drivers/mtd/redboot.c: recognise a foreign byte sex partition table" updateJohn Bowler1-12/+10
Sync up the recent redboot fix with MTD CVS. It uses the correct swab() functions. Cc: John Bowler <jbowler@acm.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-28[PATCH] drivers/mtd/redboot.c: recognise a foreign byte sex partition tableJohn Bowler1-1/+27
The RedBoot boot loader writes flash partition tables containing native byte sex 32 bit values. When booting an opposite byte sex kernel (e.g. an LE kernel from BE RedBoot) the current MTD driver fails to handle the partition table and therefore is unable to generate the correct partition map for the flash. So far as I am aware this problem is ARM specific, because only ARM supports software change of the CPU (memory system) byte sex, however the partition table parsing is in generic MTD code. The patch below has been tested on NSLU2 (an IXP4XX based system) with a patch, 10-ixp4xx-copy-from.patch (submitted to linux-arm-kernel - it's ARM specific) required to make the maps/ixp4xx.c driver work with an LE kernel. Builds of the patched system are in the 'unstable' release of OpenSlug and UcSlugC available from www.nslu2-linux.org. These builds are BE, the archives at www.nslu2-linux.org and www.handhelds.org (see monotone.vanille.de) can be built LE (currently DISTRO targets nslu-ltu.conf for LE thumb uclibc (32 bit kernel) and nslu2-lau.conf, nslu2-lag.conf for LE arm uclibc/glibc) and this patch has been tested extensively will both BE and LE systems on the NSLU2 (including swapping between BE and LE by reflashing from both RedBoot and Linux). The patch recognises that the FIS directory (the partition table) is byte-reversed by examining the partition table size, which is known to be one erase block (this is an assumption made elsewhere in redboot.c). If the size matches the erase block after byte swapping the value then byte-reversal is assumed, if not no further action is taken. The patched code is fail safe; should redboot.c be changed to support a partition table with a modified size field the test will fail and the partition table will be assumed to have the host byte sex. If byte-reversal is detected the patch byte swaps the remainder of the 32 bit fields in the copy of the table; this copy is then used to set up the MTD partition map. Signed-off-by: John Bowler <jbowler@acm.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07[MTD] core: Clean up trailing white spacesThomas Gleixner1-2/+2
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+235
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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