Commit Graph

610 Commits

Author SHA1 Message Date
Alan
c033a7e3d5 [MTD] ck804xrom: fix a pci_find_device
Going over the bugs and warnings I found this one left over. The other
changes have already been correctly done for this driver but the actual
switch to pci_get_device that they assume has not.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-01-31 17:26:02 +00:00
Kyungmin Park
9bfbc9b24f [MTD] OneNAND: Remove unused fields
- Remove unused fields
- Fix typo

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-31 14:25:21 +09:00
Al Viro
a12743026c [PATCH] mtd/nand/cafe.c missing include of dma-mapping.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 08:39:20 -08:00
Adrian Hunter
8b29c0b6eb [MTD] OneNAND: Amend write-verify to compare to original buffer
When write-verify is enabled (CONFIG_MTD_ONENAND_VERIFY_WRITE),
the data written is read back and compared.  The comparison
was being made between dataRAM buffers, but this does not
verify that the data made it to the dataRAM correctly in
the first place.  This patch amends write-verify to
compare back to the original buffer.  It also now verifies
sub-page writes.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-25 14:06:33 +09:00
David Woodhouse
f7c37d7b8a [MTD] [NAND] Remove debugging cruft from CAFÉ NAND driver.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-01-23 23:36:43 +08:00
David Woodhouse
527a4f45ef [MTD] [NAND] Inherit CAFÉ NAND timing setup from firmware
The precise timings are board-specific (or NAND chip specific) and don't
belong here. If they're set already, then use what we find there.
Otherwise, revert to the most conservative default values (and whinge).

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-01-23 23:36:42 +08:00
Adrian Hunter
ec255e3406 [MTD] OneNAND: Check first or second pages for bad block information
OneNAND records bad block information in the out-of-band area of either the first or second page of a block.  Due to a logic error, only the first page was being checked.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-22 21:30:31 +09:00
Adrian Hunter
f00b0046d2 [MTD] OneNAND: Free the bad block table when the device is released
OneNAND does 2 memory allocations for bad block information.
Only one of them was being freed.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-22 21:27:56 +09:00
Kyungmin Park
75384b0d9c [MTD] OneNAND: Update copyrights and code cleanup
Update copyrights and code cleanup

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 11:10:57 +09:00
Kyungmin Park
738d61f537 [MTD] OneNAND: Reduce Double Density Package (DDP) operations
- DDP code clean-up
- Reduce block & bufferram operations in DDP

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 11:00:31 +09:00
Adrian Hunter
9d03280129 [MTD] OneNAND: Return an error if a read timeout occurs
If OneNAND is operating within specification, all operations should easily be
completed within the 20 millisecond timeout.
This patch faithlessly adds a check for the timeout and returns an error in
that case.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 10:59:44 +09:00
Kyungmin Park
10b7a2bd6b [MTD] OneNAND: Fix unlock all status error
We have to set ONENAND_REG_START_BLOCK_ADDRESS to avoid status error

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-18 10:59:16 +09:00
David Woodhouse
9cdf083f98 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-01-18 10:34:51 +11:00
Adrian Hunter
0fc2ccea4c [MTD] OneNAND: Handle DDP chip boundary during read-while-load
The read-while-load method of reading from OneNAND needs to allow
for the change of bufferRAM address at the boundary between the
two chips in a double density (DDP) device.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 15:05:22 +02:00
Kyungmin Park
b3c9f8bfe7 [MTD] OneNAND: return ecc error code only when 2-bit ecc occurs
we don't need to return ecc error when 1-bit ecc.
We only return error code when 2-bit ecc error

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 15:04:28 +02:00
Adrian Hunter
a8de85d557 [MTD] OneNAND: Implement read-while-load
Read-while-load enables higher performance read operations.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:58:42 +02:00
Kyungmin Park
2fd32d4af8 [MTD] OneNAND: fix onenand_wait bug in read ecc error
Even though there is ECC error. OneNAND driver updates the buffram as valid

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:40:16 +02:00
Artem Bityutskiy
61a7e1983e [MTD] OneNAND: release CPU in cycles
This patch teaches OneNAND to release processor in
read/write/erase cycles and let other processes proceed.
Also, remove buggi touch watchdog call which only hides
the problem instead of solving it.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:39:57 +02:00
Kyungmin Park
60d84f9739 [MTD] OneNAND: add subpage write support
OneNAND supports up to 4 writes at one NAND page. Add support of this feature.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:35:00 +02:00
Kyungmin Park
f627248736 [MTD] OneNAND: fix onenand_wait bug
Fix onenand_wait error reporting

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2007-01-10 14:34:42 +02:00
David Brownell
de4fa99266 [PATCH] SPI/MTD: mtd_dataflash oops prevention
Return a fault code if the Dataflash driver runs into a "no device present"
error when the MISO line has a pulldown (it currently expects a pullup), so
that rmmod won't oops.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30 10:56:42 -08:00
David Brownell
17c65d6990 [PATCH] m25p80 build fixes (with MTD debug)
Fix build issues that show up with the m25p80 SPI flash driver when
building with MTD debug enabled.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-30 10:56:42 -08:00
Robert P. J. Day
5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Robert P. J. Day
cd86128088 [PATCH] Fix numerous kcalloc() calls, convert to kzalloc()
All kcalloc() calls of the form "kcalloc(1,...)" are converted to the
equivalent kzalloc() calls, and a few kcalloc() calls with the incorrect
ordering of the first two arguments are fixed.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:52 -08:00
Ralf Baechle
0bf3a9d82a [MTD] Nuke IVR leftovers
Support for the ITE8172 based boards was deleted a while ago so this is
dead code.

The Kconfig dependency on MIPS was wrong anyway, MIPS is a processor
architecture and nothing else; guesses on systems architecture are likely
to be wrong ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-11 16:30:26 +00:00
Kyungmin Park
66a1e421b9 [MTD] OneNAND: fix oob handling in recent oob patch
There are missing place in recent MTD oob patch

http://git.infradead.org/?p=mtd-2.6.git;a=commitdiff;h=7014568bad55c20b7ee4f439d78c9e875912d51f

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-11 10:46:20 +00:00
David Woodhouse
76ab40e465 [MTD] Fix ssfdc blksize typo
I will not commit even trivial and obvious one-line fixes without building.
I will not commit even trivial and obvious one-line fixes without building.
I will not commit even trivial and obvious one-line fixes without building.
I will not commit even trivial and obvious one-line fixes without building.
Only clever people can get away with that.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-11 09:43:38 +00:00
David Woodhouse
db06e2a93f [MTD] Fix SSFDC build for variable blocksize.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-10 11:48:54 +00:00
Randy Dunlap
dffbc42b5a [MTD] ESB2ROM uses PCI
ESB2ROM uses PCI interface functions.

With CONFIG_PCI=n:
drivers/mtd/maps/esb2rom.c: In function 'esb2rom_init_one':
drivers/mtd/maps/esb2rom.c:167: warning: implicit declaration of function 'pci_dev_get'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-10 11:43:21 +00:00
Vitaly Wool
a2c2fe4b24 [MTD] of_device-based physmap driver
inlined below is the patch that adds physmap driver for of_device.
It's an MTD part of the two-part support for flash/ROM devices based
on Open Firmware descriptions. The arch part (currently only PowerPC
which is no surprise) was introduced to powerpc folks earlier and
recently the older version of the powerpc part has been included into
the powerpc.git tree
(see http://www.kernel.org/git/?p=linux/kernel/git/paulus/powerpc.git;a=commitdiff;h=28f9ec349ae47c91768b7bc5607db4442c818e11).

 drivers/mtd/maps/Kconfig      |    9 +
 drivers/mtd/maps/Makefile     |    1
 drivers/mtd/maps/physmap_of.c |  255 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 265 insertions(+)

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Sergey Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:32:34 +00:00
Rod Whitby
f33665d931 [MTD] Support combined RedBoot FIS directory and configuration area
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>
2006-12-08 13:28:26 +00:00
Andrew Victor
dd11b8cdf0 [MTD] NAND: Support for 16-bit bus-width on AT91.
Add support for 16-bit NAND bus-width for the AT91 NAND driver.

The 16-bit NAND is found on the Atmel AT91SAM9260-EK and AT91SAM9261-EK
boards.

Orignal Patch from Patrice Vilchez

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:25:17 +00:00
Artem Bityutskiy
4a0c50c07a [MTD] nandsim: bugfix in page addressing
Number of address bytes for 64-128 MiB NANDs is 4, not 5.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-08 13:22:54 +00:00
Christoph Lameter
e94b176609 [PATCH] slab: remove SLAB_KERNEL
SLAB_KERNEL is an alias of GFP_KERNEL.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:24 -08:00
Timo Lindhorst
418b2e56b8 [MTD] NAND: use SmartMedia ECC byte order for ndfc
Select MTD_NAND_ECC_SMC (ECC byte order according to the Smart Media
Specification) if MTD_NAND_NDFC is used.
Using the wrong byte order causes fatal, unnoticed data damage.

For further information see:
http://lists.infradead.org/pipermail/linux-mtd/2006-November/016920.html

Signed-off-by: Timo Lindhorst <lindhors@linux.vnet.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-05 18:00:13 +00:00
Yoshinori Sato
0b47d65408 [MTD] redboot partition combined fis / config problem
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>
2006-12-01 10:01:50 +00:00
Mariusz Kozlowski
7dcb483de3 [MTD] [NAND] Compile fix in rfc_from4.c
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-12-01 09:59:49 +00:00
David Woodhouse
bd3c97a7c7 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-01 09:56:43 +00:00
Haavard Skinnemoen
6c33cafc79 [MTD] bugfix: DataFlash is not bit writable
This patch fixes the
"jffs2_flash_writev(): Non-contiguous write to 00825300 with mtd_dataflash" bug.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-12-01 10:30:45 +02:00
David Woodhouse
c9ac597729 [MTD] Remove trailing whitespace
The newly-added cafe_ecc.c had a lot of it because of the way the lookup
table was auto-generated; clean up the other files too while we're at it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-30 08:17:38 +00:00
Jan Engelhardt
03a67a46af Fix typos in doc and comments
Changes persistant -> persistent. www.dictionary.com does not know
persistant (with an A), but should it be one of those things you can
spell in more than one correct way, let me know.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 05:32:19 +01:00
Matt LaPlante
3cb2fccc5f Fix misc Kconfig typos
Fix various Kconfig typos.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 05:22:59 +01:00
David Woodhouse
dd36f26735 [MTD] Use EXPORT_SYMBOL_GPL() for exported symbols.
While we're fixing up the newly-added symbol, change the neighbouring ones
too, for consistency and also to reflect the author's interpretation of
the GPL -- which is that _no_ non-GPL modules are permitted. The author
always intended his code to be released under the GPL, and believes that
any new interpretation of 'EXPORT_SYMBOL' as being any different from
'EXPORT_SYMBOL_GPL' is entirely invalid; the GPL requires that _all_
exports have the semantics of the new 'EXPORT_SYMBOL_GPL', which means the
extra four characters are entirely redundant.

But since those four extra characters trigger the check for illegal
modules in a way that just EXPORT_SYMBOL does not, it's useful to change
anyway. This action in no way indicates an admission that there is any
legal distinction between the two states, and in particular does not
indicate that the author believes that non-GPL modules may use symbols
exported with EXPORT_SYMBOL alone.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 16:33:03 +00:00
Artem Bityutskiy
9c74034f8f [MTD] return error code from get_mtd_device()
get_mtd_device() returns NULL in case of any failure. Teach it to return an
error code instead. Fix all users as well.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:06:38 +02:00
Artem Bityutskiy
9fe912cea3 [MTD] add get and put methods
This patch adds get_device() and put_device() methods to the MTD description
structure (struct mtd_info). These methods are called by MTD whenever the MTD
device is get or put. They are needed when the underlying driver is something
smarter then just flash chip driver, for example UBI.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:04:53 +02:00
Artem Bityutskiy
7799308f34 [MTD] add get_mtd_device_nm() function
This patch adds one more function to the MTD interface to make it possible to
open MTD devices by their names, not only numbers. This is very handy in many
situations. Also, MTD device number depend on load order and may vary, while
names are fixed.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:04:31 +02:00
Thomas Gleixner
29072b9607 [MTD] NAND: add subpage write support
Many SLC NANDs support up to 4 writes at one NAND page. Add support
of this feature.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 17:03:52 +02:00
Josh Boyer
f6a7ecb18d [MTD] add MTD_BLKDEVS Kconfig option
Add a MTD_BLKDEVS Kconfig option to cleanup the makefile a bit

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 16:58:15 +02:00
Yoichi Yuasa
eb6cf7bb71 [MTD] fix map probe name for cstm_mips_ixx
This patch has fixed name of map probe for cstm_mips_ixx.c

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
2006-11-29 16:57:55 +02:00
Joakim Tjernlund
967bf623e9 [PATCH] Fix Intel/Sharp command set erase suspend bug
When we sleep and wait for a suspended operation to be resumed, go
back and check until it's ready -- don't just continue after the first
time we're woken. This can cause file system corruption.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-28 17:26:50 -08:00
Andrew Morton
ce1060494a [MTD] Tidy bitrev usage in rtc_from4.c
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 00:19:14 +00:00
Timo Lindhorst
fc02919499 [MTD] [NAND] fix ifdef option in nand_ecc.c
Fix up the config option in the #ifdef statements in nand_ecc.c

Signed-off-by: Timo Lindhorst <lindhors@linux.vnet.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 00:11:39 +00:00
David Woodhouse
28bdd4a72d [MTD] [NAND] Update CAFÉ driver interrupt handler prototype
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-29 00:04:59 +00:00
David Woodhouse
103e40f633 Merge git://git.infradead.org/~kmpark/onenand-mtd-2.6 2006-11-29 00:03:10 +00:00
Burman Yan
95b93a0cd4 [MTD] replace kmalloc+memset with kzalloc
Signed-off-by: Yan Burman <yan_952@hotmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 23:47:21 +00:00
Randy Dunlap
998a43e72d [MTD] Fix printk format warning in physmap. (resources again)
Fix printk format warning:
drivers/mtd/maps/physmap.c:93: warning: long long unsigned int format, long unsigned int arg (arg 2)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 23:40:46 +00:00
David Woodhouse
1aaaeabf36 Merge git://git.infradead.org/~dwmw2/cafe-2.6 2006-11-28 22:43:10 +00:00
Vitaly Wool
7014568bad [MTD] [NAND] remove len/ooblen confusion.
As was discussed between Ricard Wanderlöf, David Woodhouse, Artem 
Bityutskiy and me, the current API for reading/writing OOB is confusing. 

The thing that introduces confusion is the need to specify ops.len 
together with ops.ooblen for reads/writes that concern only OOB not data 
area. So, ops.len is overloaded: when ops.datbuf != NULL it serves to 
specify the length of the data read, and when ops.datbuf == NULL, it 
serves to specify the full OOB read length.

The patch inlined below is the slightly updated version of the previous 
patch serving the same purpose, but with the new Artem's comments taken 
into account.

Artem, BTW, thanks a lot for your valuable input!

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:39:03 +00:00
Richard Purdie
1918767299 [MTD] Allow variable block sizes in mtd_blkdevs
Currently, mtd_blkdevs enforces a block size of 512, even if the drivers
can seemingly request a different size. This patch fixes mtd_blkdevs so
block sizes other than 512 work correctly.

Signed-off-by: Richard Purdie <rpurdie@openedhand.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:27:47 +00:00
Dave Olsen
90afffc8bd [MTD] [MAPS] Support for BIOS flash chips on the nvidia ck804 southbridge
Add support for accessing BIOS flash chips connected to the NVIDIA ck804 southbridge.

Signed-off-by: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:25:27 +00:00
Stefan Roese
4010db56c8 [MTD] [NAND] Fix endianess bug in ndfc.c
The writel() call accidentally clears all bits in the NDFC_CCR
register (endianess problem). Now __raw_writel() is used instead.

Tested on Bamboo with NAND on chip select 0 and chip select 1.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:22:55 +00:00
Adrian Bunk
ddacff1f20 [MTD] make drivers/mtd/cmdlinepart.c:mtdpart_setup() static
This patch makes the needlessly global mtdpart_setup() static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:19:16 +00:00
Adrian Bunk
1605cd3d9c [MTD] [NAND] rtc_from4.c: use lib/bitrev.c
This patch converts drivers/mtd/nand/rtc_from4.c to use the new
lib/bitrev.c

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-28 22:18:52 +00:00
Kyungmin Park
f4f91ac3c8 [MTD] OneNAND: Single bit error detection
Idea from Jarkko Lavinen

Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-11-16 12:03:56 +09:00
Kyungmin Park
08f782b60a [MTD] OneNAND: lock support
Now you can use mtd lock inferface on OneNAND

The idea is from Nemakal, Vijaya, thanks

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-11-16 11:29:39 +09:00
Kyungmin Park
2c22120fbd MTD: OneNAND: interrupt based wait support
We can use the two methods to wait.
  1. polling: read interrupt status register
  2. interrupt: use kernel ineterrupt mechanism

  To use interrupt method, you first connect onenand interrupt pin to your
platform and configure interrupt properly

Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
2006-11-16 11:23:48 +09:00
David Woodhouse
cad40654c3 [MTD] NAND: Fix ECC settings in CAFÉ controller driver.
We were resetting cafe->ctl2 to zero after an erase (and also during a
write, but it was correctly reset after that). This meant that ECC reads
after an erase were failing. Doh.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-01 08:19:20 +08:00
David Woodhouse
be8444bdf3 [MTD] NAND: Add register debugging spew option to CAFÉ driver
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-31 12:36:04 +08:00
David Woodhouse
195a253b66 [MTD] NAND: Use register #defines throughout CAFÉ driver, not numbers
Also use cafe_readl() and cafe_writel() abstraction to make code
slightly cleaner -- especially if we want to use it in PIO mode.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-31 12:30:11 +08:00
David Woodhouse
a020727b16 [MTD] NAND: Fix timing calculation in CAFÉ debugging message
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-28 17:08:38 +03:00
Jesper Juhl
efbfe96c5d [PATCH] silence 'make xmldocs' warning by adding missing description of 'raw' in nand_base.c:1485
Add description of 'raw' in comments for
drivers/mtd/nand/nand_base.c::nand_write_page_syndrome() so 'make xmldocs'
will not spew a warning at us.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-27 15:34:51 -07:00
David Woodhouse
63a1423763 [MTD] NAND: Remove empty block ECC workaround
They fixed the hardware so that ECC doesn't fail on reading an empty
block.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-27 22:12:02 +03:00
David Woodhouse
7608194c4a [MTD] NAND: Add ECC debugging for CAFÉ
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-27 15:40:51 +03:00
David Woodhouse
b478c775a0 [MTD] CAFÉ NAND: Add 'slowtiming' parameter, default usedma and checkecc on
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-27 14:50:04 +03:00
David Woodhouse
dcc41bc81c [MTD] NAND: Reset Café controller before initialising.
Fixes http://dev.laptop.org/ticket/237

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-27 09:55:34 +03:00
David Woodhouse
2c8cfdcbeb [MTD] NAND: Café ECC -- remove spurious BUG_ON() in err_pos()
Being a value which isn't in the table is a case we explicitly check for
in the caller. Don't BUG_ON() because it does actually happen in
practice.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-27 09:53:08 +03:00
Ricard Wanderlöf
ff0dab64b4 [MTD] NAND: Fix nand_default_mark_blockbad() when flash-based BBT disabled
When a flash-based BBT is not used, nand_default_mark_blockbad() is supposed
to mark the block bad in the oob. However, it sets the wrong length variable
so that no bad block marker is in fact written. This patch attempts to
rectify that.

(As note, it seems to be that logically, it shouldn't be necessary to set
both length variables, as one appears to be for the main buffer, and
one for the oob buffer, but this is how it is done in several places,
including the code for the mtd character device MEMWRITEOOB and MEMREADOOB
ioctls. I'm not sure if this is a temporary solution during some rework of
the mtd infrastructure, or whether there is a deeper thought here.)

Signed-off-by: Ricard Wanderlöf <ricardw@axis.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-26 13:17:49 +03:00
David Woodhouse
470b0a90d6 [MTD] NAND: Disable ECC checking on CAFÉ since it's broken for now
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-23 14:29:04 +01:00
David Woodhouse
fbad5696c5 [MTD] NAND: CAFÉ NAND driver cleanup, fix ECC on reading empty flash
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-22 15:09:33 +01:00
David Woodhouse
04459d7c62 [MTD] NAND: Add hardware ECC correction support to CAFÉ NAND driver
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-22 02:18:48 +01:00
David Woodhouse
c45aa055c3 Merge git://git.infradead.org/~dwmw2/cafe-2.6
Conflicts:

	drivers/mtd/nand/Kconfig
2006-10-22 02:17:05 +01:00
David Woodhouse
784f4d5e66 [MTD] NAND: Correct setting of chip->oob_poi OOB buffer
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-22 01:47:45 +01:00
David Woodhouse
7dcdcbef5d [MTD] NAND: Combined oob buffer so it's contiguous with data
Ditch the separate oobrbuf and oobwbuf fields from the chip buffers,
and use only a single buffer immediately after the data. This accommodates
NAND controllers such as the OLPC CAFÉ chip, which can't do scatter/gather
DMA so needs the OOB buffer to be contiguous with the data, for both read
and write.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 17:48:58 +01:00
David Woodhouse
513b046c96 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-10-21 16:46:04 +01:00
Artem Bityutskiy
82810b7b6c [MTD] NAND: nandsim: support subpage write
As flash cannot do 0->1 bit transitions when programming, do not do this in
the simulator too. This makes nandsim able to accept subpage writes.

Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:44:23 +01:00
David Anders
a86aaa6ddf [MTD] NOR: leave Intel chips in read-array mode on suspend
During some testing with several samsung s3c24xx based
devices it was discovered that often the
cfi_cmdset_0001.c would not leave the chip in
read-array mode on suspend. this is an issue if the
same flash chip is used for the bootloader that needs
to be read on resume.

Signed-off-by: David Anders <danders@amltd.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:43:53 +01:00
Artem Bityutskiy
d29ebdbee4 [MTD] core: trivial comments fix
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:42:53 +01:00
Vijay Kumar
a5602146c5 [MTD] NAND: nandsim coding style fix
Removes line break after return type in function definitions, to be
consistent with the Linux coding style.

Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:40:55 +01:00
Vijay Kumar
d086d43640 [MTD] NAND: nandsim page-wise allocation (2/2)
For page wise allocation, an array of flash page pointers is allocated
during initialization. The flash pages are themselves allocated when a
write occurs to the page. The flash pages are deallocated when they
are erased.

Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:40:27 +01:00
Vijay Kumar
47e3774338 [MTD] NAND: nandsim page-wise allocation (1/2)
This patch removes code that does chip mapping. The chip mapping code
is no longer used.

Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:39:56 +01:00
Yoichi Yuasa
6652018c82 [MTD] MAPS: Remove ITE 8172G and Globespan IVR MTD support
This patch has removed ITE 8172G and Globespan IVR MTD support.
These boards support have already been removed.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Bächle <ralf@linux-mips.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:35:05 +01:00
Ricard Wanderlöf
d25ade71ef [MTD] mtdchar: Fix MEMGETOOBSEL and ECCGETLAYOUT ioctls
1. The ECCGETLAYOUT ioctl copy_to_user() call has a superfluous '&'
causing the resulting information to be garbage rather than the intended
mtd->ecclayout.

2. The MEMGETOOBSEL misses copying mtd->ecclayout->eccbytes so the
resulting field of the returned structure contains garbage.

Signed-off-by: Ricard Wanderlöf <ricardw@axis.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:33:17 +01:00
Andrew Victor
42cb1403af [MTD] NAND: AT91 NAND driver
This version only differs from version posted by Savin Zlobec (20 Jun
2006) in that the AT91RM9200-specific chip-select / bus setup code has
been moved from the at91_nand.c driver into the processor-specific file.

From: Savin Zlobec <savin@epico.si>
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:28:26 +01:00
Alan Cox
c7438d02b3 [MTD] MAPS: esb2rom: use hotplug safe interfaces
Fairly self explanatory.  Keep a reference initially, drop it when we free up
the driver resources.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:22:58 +01:00
Alexey Dobriyan
f33686b5a7 [MTD] JEDEC probe: fix comment typo (devic)
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:22:04 +01:00
Lew Glendenning
29175778b0 [MTD] MAPS: Support for BIOS flash chips on Intel ESB2 southbridge
Add MTD map driver for BIOS flash chips connected to the Intel ESB2
southbridge.

[akpm@osdl.org: coding-style fixes, build fix]
Signed-off-by: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:21:04 +01:00
Ryan Jackson
89072ef993 [MTD] CHIPS: Support for SST 49LF040B flash chip
Add chip driver and JEDEC probe support for the SST 49LF040B flash chip.

Signed-off-by: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:18:51 +01:00
Ryan Jackson
c9073ce02a [MTD] MAPS: Add parameter to amd76xrom to override rom window size
The 2 bits controlling the window size are often set to allow reading the
BIOS, but too small to allow writing, since the lock registers are 4MiB
lower in the address space than the data.  This is intended to prevent
flashing the bios, perhaps accidentally.

The bits are 6 and 7.  If both bits are set, it is a 5MiB window. If only
the 7 Bit is set, it is a 4MiB window.  Otherwise, it is a 64KiB window.

This parameter allows the driver to override the BIOS settings.

Signed-off-by: Ryan Jackson <rjackson@lnxi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-21 16:15:43 +01:00
David Woodhouse
8dd851de81 [MTD NAND] OLPC CAFÉ driver update
- Fix OOB handling, bad block table marker placement
- Some cleanups, enable runtime-optional debugging
- Allow BBT stuff to be skipped

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-10-20 02:11:40 +01:00
Al Viro
afc12d30a7 [PATCH] mtd: remove several bogus casts to void * in iounmap() argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10 15:37:22 -07:00