aboutsummaryrefslogtreecommitdiff
path: root/drivers/mtd
AgeCommit message (Collapse)Author
2007-11-26[MTD] [OneNAND] Do not stop reading for ECC errorsAdrian Hunter
When an ECC error occurs, the read should be completed anyway before returning -EBADMSG. Returning -EBADMSG straight away is incorrect. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-11-23[MTD] [NOR] Support Intel P3x flash support with CFI version 1.5Alexey Korolev
Signed-off-by: Alexey Korolev <akorolev@infradead.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-11-09[MTD] [NOR] Add support for the SST 39VF1601 flash chipDavid Howells
Add support for the SST 39VF1601 flash chip. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-30[MTD] [NOR] More CFI fixups for Atmel chipsHans-Christian Egtvedt
Convert CFI tables from Atmel cmdset_0001 chips to Intel format and set BufWrite timeouts to 0 for Atmel cmdset_0001 and cmdset_0002 chips. Some chips may indicate support for buffered writes even though they only support dual-word writes. The CFI fixup must run before fixup_use_write_buffers for this to work. Signed-off-by: Håvard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-30MTD: small physmap_of partition parsing fixesValentine Barshak
Use of_get_next_child for proper ref counting as suggested by Stephen Rothwell and remove add_mtd_partitions from parse_partitions to avoid duplicate mtd device registration for RedBoot partitions. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Heckled-for-on-IRC-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-30[MTD] [NAND] Add Blackfin BF52x support in bf5xx_nand driverMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-28[MTD] Skip bad blocks when checking for RedBoot partition tableDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-28[MTD] [NAND] Check for RedBoot partitions on CAFÉ NANDDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-23Eliminate pointless casts from void* in a few driver irq handlers.Jeff Garzik
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-23[MTD] [NOR] Fix deadlock in Intel chip driver caused by get_chip recursionAlexey Korolev
This patch solves kernel deadlock issue seen on JFFF2 simultaneous operations. Detailed investigation of the issue showed that the kernel deadlock is caused by tons of recursive get_chip calls. Signed-off-by: Alexey Korolev <akorolev@infradead.org> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-22[MTD] [OneNAND] Fix wrong free the static address in onenand_simKyungmin Park
Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] Replace -1 with -EBADMSG in nand error correction codeJörn Engel
Magic numerical values are just bad style. Particularly so when undocumented. Signed-off-by: Jörn Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] treat any negative return value from correct() as an errorMatt Reimer
Treat any negative return value from a NAND driver's correct() function as a failure, rather than just -1. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] nandsim: bugfix in initializationArtem Bityutskiy
NAND of > 32MiB in size use 4 bytes in address cycle, not 3. Reported-by: bhsong <bhsong@augustatek.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] Fix typo in Alauda config option help text.Dave Jones
Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] add s3c2440-specific read_buf/write_bufMatt Reimer
Add read_buf/write_buf for s3c2440, which can read/write 32 bits at a time rather than just 8. In my testing on an s3c2440a running at 400 MHz with a 100 MHz HCLK, read performance improves by 36% (from 5.19 MB/s to 7.07 MB/s). Signed-off-by: Matt Reimer <mreimer@vpop.net> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [OneNAND] onenand-sim: fix kernel-doc and typosRandy Dunlap
Correct kernel-doc notation and descriptions. Correct other typos. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20typo fixesMatt LaPlante
Most of these fixes were already submitted for old kernel versions, and were approved, but for some reason they never made it into the releases. Because this is a consolidation of a couple old missed patches, it touches both Kconfigs and documentation texts. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19Use helpers to obtain task pid in printksPavel Emelyanov
The task_struct->pid member is going to be deprecated, so start using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in the kernel. The first thing to start with is the pid, printed to dmesg - in this case we may safely use task_pid_nr(). Besides, printks produce more (much more) than a half of all the explicit pid usage. [akpm@linux-foundation.org: git-drm went and changed lots of stuff] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18Add missing newlines to some uses of dev_<level> messagesJoe Perches
Found these while looking at printk uses. Add missing newlines to dev_<level> uses Add missing KERN_<level> prefixes to multiline dev_<level>s Fixed a wierd->weird spelling typo Added a newline to a printk Signed-off-by: Joe Perches <joe@perches.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: Tilman Schmidt <tilman@imap.cc> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: James Smart <James.Smart@Emulex.Com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17Slab API: remove useless ctor parameter and reorder parametersChristoph Lameter
Slab constructors currently have a flags parameter that is never used. And the order of the arguments is opposite to other slab functions. The object pointer is placed before the kmem_cache pointer. Convert ctor(void *object, struct kmem_cache *s, unsigned long flags) to ctor(struct kmem_cache *s, void *object) throughout the kernel [akpm@linux-foundation.org: coupla fixes] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15Reinstate lost flush_ioremap_region() fix to pxa2xx-flash driverLinus Torvalds
Commit 90833fdab89da02fc0276224167f0a42e5176f41 ("[ARM] 4554/1: replace consistent_sync() with flush_ioremap_region()") introduced a new "flush_ioremap_region()" function to be used by the MTD mainstone-flash and lubbock-flash drivers to fix a regression from around 2.6.18. Those drivers were independently merged into a single driver by Todd Poynor in commit e644f7d6289456657996df4192de76c5d0a9f9c7 ("[MTD] MAPS: Merge Lubbock and Mainstone drivers into common PXA2xx driver") Later, those two commits were merged into the main MTD tree by commit b160292cc216a50fd0cd386b0bda2cd48352c73b ("Merge Linux 2.6.23") by David Woodhouse, but in that merge, the fix to use flush_iomap_region() got lost (as it was to files that now no longer existed). This reinstates the fix in the new driver. Noticed-by: Russell King <rmk@arm.linux.org.uk> Tested-and-acked-by: Nicolas Pitre <nico@cam.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jared Hulbert <jaredeh@gmail.com> Cc: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14signedness: module_param_array nump argumentAl Viro
... should be unsigned int Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14Merge branch 'master' of git://git.infradead.org/~dedekind/ubi-2.6David Woodhouse
2007-10-14[MTD] fix mtdconcat for subpage-write NANDChris Paulson-Ellis
This allows the mtdconcat driver to work with NAND flash devices that support sub-page writes. Signed-off-by: Chris Paulson-Ellis <chris@edesix.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-14[MTD] [OneNAND] Avoid deadlock in erase callback; release chip lock first.Adrian Hunter
When the erase callback performs some other action on the flash, it's highly likely to deadlock unless we actually release the chip lock before calling it. This patch mirrors that same change already done for NAND. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-14[MTD] [OneNAND] Return only negative error codesAdrian Hunter
The OneNAND driver was confusing JFFS2 by returning positive error codes. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-14[MTD] [OneNAND] Synchronize block locking operationsAdrian Hunter
Ensure OneNAND's block locking operations are synchronized like all other operations. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-14UBI: return correct error codeArtem Bityutskiy
Fix the following warning: drivers/mtd/ubi/eba.c: In function 'ubi_eba_init_scan': drivers/mtd/ubi/eba.c:1116: warning: 'err' may be used uninitialized in this function Pointed-to-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: remove useless inlinesArtem Bityutskiy
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: fix atomic LEB change problemsArtem Bityutskiy
When the UBI device is nearly full, i.e. all LEBs are mapped, we have only one spare LEB left - the one we reserved for WL purposes. Well, I do not count the LEBs which were reserved for bad PEB handling - suppose NOR flash for simplicity. If an "atomic LEB change operation" is run, and the WL unit is moving a LEB, we have no spare LEBs to finish the operation and fail, which is not good. Moreover, if there are 2 or more simultanious "atomic LEB change" requests, only one of them has chances to succeed, the other will fail with -ENOSPC. Not good either. This patch does 2 things: 1. Reserves one PEB for the "atomic LEB change" operation. 2. Serealize the operations so that only on of them may run at a time (by means of a mutex). Pointed-to-by: Brijesh Singh <brijesh.s.singh@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: use byte hexdumpArtem Bityutskiy
More handy since word hexdump prints in host endian. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: do not use vmalloc on I/O pathArtem Bityutskiy
Similar reason as in case of the previous patch: it causes deadlocks if a filesystem with writeback support works on top of UBI. So pre-allocate needed buffers when attaching MTD device. We also need mutexes to protect the buffers, but they do not cause much contantion because they are used in recovery, torture, and WL copy routines, which are called seldom. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: allocate memory with GFP_NOFSArtem Bityutskiy
Use GFP_NOFS flag when allocating memory on I/O path, because otherwise we may deadlock the filesystem which works on top of us. We observed the deadlocks with UBIFS. Example: VFS->FS lock a lock->UBI->kmalloc()->VFS writeback->FS locks the same lock again. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: use linux print_hex_dump(), not home-grown oneArtem Bityutskiy
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: don't use array index before testing if it is negativeJesper Juhl
I can't find anything guaranteeing that 'ubi_num' cannot be <0 in drivers/mtd/ubi/kapi.c::ubi_open_volume(), and in fact the code even tests for that and errors out if so. Unfortunately the test for "ubi_num < 0" happens after we've already used 'ubi_num' as an array index - bad thing to do if it is negative. This patch moves the test earlier in the function and then moves the indexing using that variable after the check. A bit safer :-) Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: add more printsArtem Bityutskiy
I hit those situations and found out lack of print messages. Add more prints when erase problems occur. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: fix sparse warningsArtem Bityutskiy
Fix "symbol shadows an earlier one" warnings. Although they are harmless but it does not hurt to fix them and make sparse happy. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-14UBI: fix leak in ubi_scan_erase_pebFlorin Malita
Coverity (1769) found the following problem: if the erase counter overflow check triggers, ec_hdr is leaked. Moving the allocation after the overflow check should take care of it. Signed-off-by: Florin Malita <fmalita@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2007-10-13Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2007-10-13Merge Linux 2.6.23David Woodhouse
2007-10-13[MTD] [NAND] Blackfin on-chip NAND Flash Controller driverBryan Wu
This is the driver for latest Blackfin on-chip nand flash controller - use nand_chip and mtd_info common nand driver interface - provide both PIO and dma operation - compiled with ezkit bf548 configuration - use hardware 1-bit ECC - tested with YAFFS2 and can mount YAFFS2 filesystem as rootfs ChangeLog from try#1 - use hweight32() instead of count_bits() - replace bf54x with bf5xx and BF54X with BF5XX - compare against plat->page_size in 2 cases when enable hardware ECC ChangeLog from try#2 - passed nand_test suites - use cpu_relax() instead of busy wait loop - some coding style issue pointed out by Andrew Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-13[MTD] [NOR] fix ctrl-alt-del can't reboot for intel flash bugKevin Hao
When we press ctrl-alt-del,kernel_restart_prepare will invoke cfi_intelext_reboot which will set flash to read array mode, but later when device_shutdown is invoked which may put current work queue to sleep and other process may be scheduled to running and programming flash in not FL_READY mode again. So we can't boot up if this flash is used for bootloader. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-13[MTD] [NAND] Fix compiler warning in Alauda driverakpm@linux-foundation.org
drivers/mtd/nand/alauda.c: In function 'alauda_bounce_read': drivers/mtd/nand/alauda.c:412: warning: comparison of distinct pointer types lacks a cast Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-13[MTD] [OneNAND] Fix typo related with recent commitKyungmin Park
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06[MTD] [NAND] Avoid deadlock in erase callback; release chip lock first.David Woodhouse
When the erase callback performs some other action on the flash, it's highly likely to deadlock unless we actually release the chip lock before calling it. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06[MTD] [NAND] Resume method for CAFÉ NAND controllerDavid Woodhouse
Originally from Marcelo; modified to put the original timing registers back instead of 0xFFFFFFFF. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06[MTD] [NAND] Fix PCI ident table for CAFÉ NAND controller.David Woodhouse
It was only the very early prototypes which made the mistake of using the same device ident for all three functions on the device -- don't bother trying to express that in the PCI match table, since the tools don't cope. We can check in the probe routine instead, just in case. Also remember to terminate the table. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-06Merge branch 'master' of ssh://git.infradead.org/srv/git/mtd-2.6David Woodhouse
2007-09-25[MTD] [NAND] s3c2410: fix arch movesBen Dooks
Fixup the includes which have been moved around when changing the s3c24xx arch support. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 15:54:37 +0000