Commit Graph

676 Commits

Author SHA1 Message Date
Josef 'Jeff' Sipek ea59830db0 [MTD] Use SEEK_{SET,CUR,END} instead of hardcoded values in mtdchar lseek()
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-09-17 17:04:23 +01:00
Håvard Skinnemoen de591dacf3 MTD: Fix bug in fixup_convert_atmel_pri
The memset() in fixup_convert_atmel_pri is supposed to zero out
everything except the first 5 bytes in *extp, but it ends up zeroing
out something way outside the struct instead. Fix this potentially
dangerous code by casting the pointer to char * before doing
arithmetic.

Signed-off-by: Håvard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-09-16 13:54:17 +01:00
Aubrey Lee fa6c220a7f [PATCH] [MTD] DEVICES: Fill more device IDs in the structure of m25p80
The flash_info structure has a bunch of missing fields which causes problems
when actually tryin to use some ST parts as it gets detected incorrectly.

Signed-off-by: Aubrey L1 <aubreylee@gmail.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-09-05 05:55:07 -05:00
David Woodhouse 0a7d5f8ce9 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-08-30 23:30:38 +01:00
Jonathan McDowell fb8d81e477 [PATCH] MTD NAND: Fix ams-delta after core conversion
The recent hwctrl core conversion for MTD NAND devices broke the Amstrad
Delta driver.  This fixes it up and uses the existing control line defines
rather than unclear magic numbers.

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-08-27 11:01:30 -07:00
Richard Purdie 7fd5aecc5d [PATCH] mtd corruption fix
Read the return value before we release the nand device otherwise the
value can become corrupted by another user of chip->ops, ultimately
resulting in filesystem corruption.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-08-27 11:01:29 -07:00
Haavard Skinnemoen 0165508c80 MTD: Add lock/unlock operations for Atmel AT49BV6416
The AT49BV6416 is locked by default, so we really need to provide
at least the unlock() operation for write and erase to work. This
patch implements both ->lock() and ->unlock() and provides a fixup
to install them when an AT49BV6416 chip is detected.

These functions are probably valid on more Atmel chips, but I believe
it's mostly obsolete ones. The AT49BV6416 is in fact obsolete, but
it's used on all current AT32STK1000 development boards.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-08-16 20:16:43 -05:00
Haavard Skinnemoen 5b0c5c2c0d MTD: Convert Atmel PRI information to AMD format
Atmel flash chips don't have PRI information in the same format as
AMD flash chips. This patch installs a fixup for all Atmel chips that
converts the relevant PRI fields into AMD format.

Only the fields that are actually used by the command set is actually
converted. The rest are initialized to zero (which should be safe)

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-08-16 20:13:06 -05:00
Takashi YOSHII 79b9cd586f [PATCH] [MTD] Maps: Add dependency on alternate probe methods to physmap
map/physmap.c tries to probe "cfi_probe", "jedec_probe" and "map_rom", but
map/Kconfig says it depends on MTD_CFI only.
This patch adds  MTD_JEDECPROBE and MTD_ROM to the dependency condition.

Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-08-15 07:26:32 -05:00
Takashi YOSHI c4e6952ffd [PATCH] MTD: Add Macronix MX29F040 to JEDEC
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-08-14 19:48:30 -05:00
Alexey Korolev 46a1652c28 [MTD] Fixes of performance and stability issues in CFI driver.
Fix of performance and stability issues on Intel NOR chips. It fixes:

1. Very low write performance on Sibley (perf tests demonstrated write
   performance less than 100Kb/sec when it should be over 400Kb/sec).

2. Low erase performance. (perf tests on Sibleuy demonstrated erase
   performance 246Kb/sec when it should be over 300Kb/sec).

3. Error on JFFS2 tests with CPU loading application when MTD returns
   "block erase error: (status timeout)" To fix the issue it does the
   following:
     1. Removes the timeout tuning from inval_cache_and_wait_for_operation.
     2. Waiting conditions in inval_cache_and_wait_for_operation now is
         based on timer resolution
        If timeout is lower than timer resolution then we do in cycle
	  "Checking the status"
	  udelay(1);
	  cond_resched();
        If timeout is greater than timer resolution (probably erase
        operation) We do the following
	  sleep for half of operation timeout and do in cycle the following
	    "Checking the status"
	    sleep for timer resolution

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-07-15 13:43:59 +01:00
Ville Herva c4e7fb3137 block2mtd.c: Make kernel boot command line arguments work (try 4)
Trying to pass kernel command line arguments to block2mtd at boot-time does
not work currently. block2mtd_setup() is called so early that kmalloc()
fails nevermind being able to do open_bdev_excl() (which requires rootfs to
be mounted. This patch only saves the option string at the early boot stage,
and parses them later when block2mtd_init() is called. If open_bdev_excl()
fails, open_by_devnum(name_to_dev_t()) is tried instead, which makes it
possible to initialize the driver before rootfs has been mounted. Also gets
rid of the superfluous parse_name() that only checks if name is longer than
80 chars and copies it to a string that is not kfreed.

With this patch, I can boot statically compiled block2mtd, and mount jffs2
as rootfs (without modules or initrd), with lilo config like this:

   root=/dev/mtdblock0
   append="rootfstype=jffs2 block2mtd.block2mtd=/dev/hdc2,65536"

(Note that rootfstype=jffs2 is required, since the kernel only tries
filesystems without "nodev" attribute by default, and jffs is "nodev").

Compared to first version of this patch, this one does not copy the
parameters to the global buffer if init has already been called, and the
global array is marked as __initdata.

Compared to the second version of this patch, module build is fixed.

Compared to the third version of this patch, statically compiled block2mtd
driver with no boot-time parameter no longer gives spurious error 'cannot
open device ""'

Signed-off-by: Ville Herva <vherva@vianova.fi>
Acked-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-07-15 13:39:10 +01:00
David Woodhouse 9a909867d2 [MTD NAND] Fix lookup error in nand_get_flash_type()
Spotted by liyu <liyu@ccoss.com.cn>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-07-15 13:26:18 +01:00
Rolf Eike Beer 9d05cd5178 remove #error on !PCI from pmc551.c
PMC551 depends on PCI in Kconfig so there is no need to #error in code if PCI
is not set.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-07-15 13:19:55 +01:00
Richard Purdie 6a5a297cf7 MTD: [NAND] Fix the sharpsl driver after breakage from a core conversion
The CNE bits are inverted on the device and writeb function is missing a
NOT operation.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-07-15 13:19:24 +01:00
Vitaly Wool 8b0036eefd [MTD] NAND: OOB buffer offset fixups
In the case of data-pad-ecc-pad-data... layout the oob start position
has to be sizeof(data) in nand_write_oob_syndrom().

In nand_fill_oob() we need to copy to buf + buffer offset instead of
buf + write offset.

From: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-07-11 09:11:25 +02:00
Artem B. Bityutskiy 220b0f5755 [PATCH] [MTD] NAND: fix dead URL in Kconfig
Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org>
2006-07-05 14:45:11 +01:00
Linus Torvalds 0d1782144e Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [JFFS2][XATTR] Fix memory leak in POSIX-ACL support
  fs/jffs2/: make 2 functions static
  [MTD] NAND: Fix broken sharpsl driver
  [JFFS2][XATTR] Fix xd->refcnt race condition
  MTD: kernel-doc fixes + additions
  MTD: fix all kernel-doc warnings
  [MTD] DOC: Fixup read functions and do a little cleanup
2006-07-03 21:29:08 -07:00
Jörn Engel 6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Thomas Gleixner 27a288677d [MTD] NAND: Fix broken sharpsl driver
Remove the not longer supported NO_VIRTBLOCKS flag and remove
an unused variable while at it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-29 21:25:10 +02:00
Linus Torvalds 1903ac54f8 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  [PATCH] i386: export memory more than 4G through /proc/iomem
  [PATCH] 64bit Resource: finally enable 64bit resource sizes
  [PATCH] 64bit Resource: convert a few remaining drivers to use resource_size_t where needed
  [PATCH] 64bit resource: change pnp core to use resource_size_t
  [PATCH] 64bit resource: change pci core and arch code to use resource_size_t
  [PATCH] 64bit resource: change resource core to use resource_size_t
  [PATCH] 64bit resource: introduce resource_size_t for the start and end of struct resource
  [PATCH] 64bit resource: fix up printks for resources in misc drivers
  [PATCH] 64bit resource: fix up printks for resources in arch and core code
  [PATCH] 64bit resource: fix up printks for resources in pcmcia drivers
  [PATCH] 64bit resource: fix up printks for resources in video drivers
  [PATCH] 64bit resource: fix up printks for resources in ide drivers
  [PATCH] 64bit resource: fix up printks for resources in mtd drivers
  [PATCH] 64bit resource: fix up printks for resources in pci core and hotplug drivers
  [PATCH] 64bit resource: fix up printks for resources in networks drivers
  [PATCH] 64bit resource: fix up printks for resources in sound drivers
  [PATCH] 64bit resource: C99 changes for struct resource declarations

Fixed up trivial conflict in drivers/ide/pci/cmd64x.c (the printk that
was changed by the 64-bit resources had been deleted in the meantime ;)
2006-06-29 10:49:17 -07:00
Randy Dunlap 844d3b427e MTD: fix all kernel-doc warnings
Fix all kernel-doc warnings in MTD headers and source files:
- add some missing struct fields;
- correct some function parameter names;
- use kernel-doc format for function doc. headers;
- nand_ecc.c contains only exported interfaces, no internal ones;

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-29 08:55:00 +01:00
Thomas Gleixner 7f8a894066 [MTD] DOC: Fixup read functions and do a little cleanup
The NAND rework resulted in non ECC based reads. Fix it up and
do a bit of cleanup while at it.

Pointed out by Adrian Bunk.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-28 10:11:33 +02:00
Linus Torvalds 936813a880 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD] NAND: Select chip before checking write protect status
  [MTD] CORE mtdchar.c: fix off-by-one error in lseek()
  [MTD] NAND: Fix typo in mtd/nand/ts7250.c
  [JFFS2][XATTR] coexistence between xattr and write buffering support.
  [JFFS2][XATTR] Fix wrong copyright
  [JFFS2][XATTR] Re-define xd->refcnt as atomic_t
  [JFFS2][XATTR] Fix memory leak with jffs2_xattr_ref
  [JFFS2][XATTR] rid unnecessary writing of delete marker.
  [JFFS2][XATTR] Fix ACL bug when updating null xattr by null ACL.
  [JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion
  [MTD] Fix off-by-one error in physmap.c
  [MTD] Remove unused 'nr_banks' variable from ixp2000 map driver
  [MTD NAND] s3c2412 support in s3c2410.c
  [MTD] Initialize 'writesize'
  [MTD] NAND: ndfc fix address offset thinko
  [MTD] NAND: S3C2410 convert prinks to dev_*()s
  [MTD] NAND: Missing fixups
2006-06-27 19:13:56 -07:00
Thomas Gleixner 6a93096195 [MTD] NAND: Select chip before checking write protect status
The other way round works not really well with boards which have a
static NAND chipselect.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-27 23:24:09 +01:00
Herbert Valerio Riedel 1887f517e3 [MTD] CORE mtdchar.c: fix off-by-one error in lseek()
Allow lseek(mtdchar_fd, 0, SEEK_END) to succeed, which currently fails
with EINVAL.

lseek(fd, 0, SEEK_END) should result into the same fileposition as
lseek(fd, 0, SEEK_SET) + read(fd, buf, length(fd))

Furthermore, lseek(fd, 0, SEEK_CUR) should return the current file position,
which in case of an encountered EOF should not result in EINVAL

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-27 23:22:07 +01:00
Petr Stetiar 0e4ced59de [MTD] NAND: Fix typo in mtd/nand/ts7250.c
I was unable to compile ts7250.c after your refactor commit,
it's a typo probably.

-- ynezz

From: Petr Stetiar <ynezz@true.cz>
Signed-off-by: Thomas Gleixner  <tglx@linutronix.de>
2006-06-27 23:20:48 +01:00
Greg Kroah-Hartman 176dfc633b [PATCH] 64bit resource: fix up printks for resources in mtd drivers
This is needed if we wish to change the size of the resource structures.

Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com>

Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-27 09:23:58 -07:00
Sascha Hauer 6d4f8224d4 [MTD] Fix off-by-one error in physmap.c
This patch fixes a simple off-by-one error in the mtd physmap driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-27 14:38:15 +01:00
Lennert Buytenhek ce5b0968b1 [MTD] Remove unused 'nr_banks' variable from ixp2000 map driver
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-27 14:36:20 +01:00
Ben Dooks 2c06a08217 [MTD NAND] s3c2412 support in s3c2410.c
Add support for both the S3C2412 and S3C2412 Samsung SoCs to
the increasingly mis-named s3c2410.c driver.

This currently only supports SLC ECCs, and a chip on nFCE0.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-27 14:35:46 +01:00
Linus Torvalds 2a2ed2db35 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
  kbuild: trivial fixes in Makefile
  kbuild: adding symbols in Kconfig and defconfig to TAGS
  kbuild: replace abort() with exit(1)
  kbuild: support for %.symtypes files
  kbuild: fix silentoldconfig recursion
  kbuild: add option for stripping modules while installing them
  kbuild: kill some false positives from modpost
  kbuild: export-symbol usage report generator
  kbuild: fix make -rR breakage
  kbuild: append -dirty for updated but uncommited changes
  kbuild: append git revision for all untagged commits
  kbuild: fix module.symvers parsing in modpost
  kbuild: ignore make's built-in rules & variables
  kbuild: bugfix with initramfs
  kbuild: modpost build fix
  kbuild: check license compatibility when building modules
  kbuild: export-type enhancement to modpost.c
  kbuild: add dependency on kernel.release to the package targets
  kbuild: `make kernelrelease' speedup
  kconfig: KCONFIG_OVERWRITECONFIG
  ...
2006-06-26 11:05:15 -07:00
David S. Miller 29f7ac7ecc [MTD] sun_uflash: Port to new EBUS device layer.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-25 23:14:51 -07:00
Artem B. Bityutskiy 17ffc7ba6d [MTD] Initialize 'writesize'
Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org>
2006-06-22 18:15:48 +04:00
Thomas Gleixner 1794c13002 [MTD] NAND: ndfc fix address offset thinko
The rework of the command handling in the nand driver
led to wrong address setting in the command control
function. Use the correct address again.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-22 13:06:43 +02:00
Ben Dooks 99974c62b6 [MTD] NAND: S3C2410 convert prinks to dev_*()s
Convert the use of printk() to the correct dev_info/dev_err
functions

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-21 18:56:34 +02:00
Savin Zlobec 0d420f9d61 [MTD] NAND: Missing fixups
The oob fixups broke a return value and missed one patch from
the Mailing List.

Signed-off-by: Savin Zlobec <savin@epico.si>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-21 13:11:56 +01:00
Thomas Gleixner 7bc3312bef [MTD] NAND: Fix breakage all over the place
Following problems are addressed:

- wrong status caused early break out of nand_wait()
- removed the bogus status check in nand_wait() which
  is a relict of the abandoned support for interrupted
  erase.
- status check moved to the correct place in read_oob
- oob support for syndrom based ecc with strange layouts
- use given offset in the AUTOOOB based oob operations

Partially based on a patch from Vitaly Vool <vwool@ru.mvista.com>
Thanks to Savin Zlobec <savin@epico.si> for tracking down the
status problem.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-20 20:31:24 +01:00
Vitaly Wool 7e4178f90e [PATCH] NAND: fix remaining OOB length calculation
In nand_read_page_syndrome/nand_write_page_syndrome the calculation of
the remaining oob length which is not used by the prepad/ecc/postpad
areas is wrong.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-20 20:31:23 +01:00
Thomas Gleixner b6d5ee00e3 [MTD] NAND Fixup NDFC merge brokeness
Remove the remains of a broken merge.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-06-20 20:31:23 +01:00
Ben Dooks ad3b5fb772 [MTD NAND] S3C2410 driver cleanup
Fix unused variables and commenting since tglx's
new NAND updates

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-19 09:43:23 +01:00
Ben Dooks d1fef3c5e1 [MTD NAND] s3c24x0 board: Fix clock handling, ensure proper initialisation.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-19 09:29:38 +01:00
David Woodhouse 21c8db9eff [MTD] Restore MTD_ROM and MTD_RAM types
Let's not attempt the abolition of mtd->type until/unless it's properly
thought through. And certainly, let's not do it by halves.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-14 21:39:48 +01:00
Artem B. Bityutskiy 783ed81ff3 [MTD] assume mtd->writesize is 1 for NOR flashes
Signed-off-by: Artem B. Bityitskiy
2006-06-14 19:53:44 +04:00
David Woodhouse f9068876f5 [MTD NAND] Fix s3c2410 NAND driver so it at least _looks_ like it compiles
Fix the control bit handling so it even looks like it might work, too.
Bad tglx. No biscuit.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-10 00:53:16 +01:00
Roman Zippel e55a3e8aed kconfig: remove leading whitespace in menu prompts
This removes all the leading whitespace kconfig now warns about.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-06-09 16:28:07 +02:00
Andrew Morton f24ff6bf8c [MTD] Prepare physmap for 64-bit-resources
Fallout from the incoming 64-bit-resource stuff:

drivers/mtd/maps/physmap.c: In function 'physmap_flash_probe':
drivers/mtd/maps/physmap.c:94: warning: format '%.8lx' expects type 'long
unsigned int', but argument 2 has type 'resource_size_t'
drivers/mtd/maps/physmap.c:94: warning: format '%.8lx' expects type 'long
unsigned int', but argument 3 has type 'resource_size_t'

Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-09 15:12:34 +01:00
Joern Engel 73c619ea0e [MTD] Disconnect struct mtd_info from ABI
mtdchar.c direcly copied part of struct mtd_info to userspace, thereby
implicitly making it part of the ABI.  With this patch, struct
mtd_info is independent of the ABI and can have its fields removed,
reordered, etc.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-30 14:25:35 +02:00
Joern Engel 92cbfdcc36 [MTD] replace MTD_RAM with MTD_GENERIC_TYPE
Ram devices get the extra capability of MTD_NO_ERASE - not requiring
an explicit erase before writing to it.  Currently only mtdblock uses
this capability.  Rest of the patch is a simple text replacement.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-30 14:25:24 +02:00
Joern Engel e369d62e92 [MTD] replace MTD_ROM with MTD_GENERIC_TYPE
No mtd user should ever check for the device type.  Instead, device features
should be checked by the flags - if at all.
As a first step towards type removal, change MTD_ROM into MTD_GENERIC_TYPE.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-30 14:25:17 +02:00
Joern Engel e1219724be [MTD] remove a forgotten MTD_XIP
MTD_XIP definition was removed in an earlier patch.  This invocation
was left by mistake.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-30 14:25:05 +02:00
Andrew Morton 7e9a0bb00c [MTD] Fix build warnings (and debug build error) in nand_base.c
drivers/mtd/nand/nand_base.c: In function 'nand_transfer_oob':
drivers/mtd/nand/nand_base.c:909: warning: comparison of distinct pointer types lacks a cast
drivers/mtd/nand/nand_base.c: In function 'nand_do_read_oob':
drivers/mtd/nand/nand_base.c:1097: error: 'len' undeclared (first use in this function)
drivers/mtd/nand/nand_base.c:1097: error: (Each undeclared identifier is reported only once
drivers/mtd/nand/nand_base.c:1097: error: for each function it appears in.)
drivers/mtd/nand/nand_base.c: In function 'nand_fill_oob':
drivers/mtd/nand/nand_base.c:1411: warning: comparison of distinct pointer types lacks a cast

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-30 09:06:41 +01:00
Thomas Gleixner f1a28c0284 [MTD] NAND Expose the new raw mode function and status info to userspace
The raw read/write access to NAND (without ECC) has been changed in the
NAND rework. Expose the new way - setting the file mode via ioctl - to
userspace. Also allow to read out the ecc statistics information so userspace
tools can see that bitflips happened and whether errors where correctable
or not. Also expose the number of bad blocks for the partition, so nandwrite
can check if the data fits into the parition before writing to it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-30 00:37:34 +02:00
Thomas Gleixner 9a1fcdfd4b [MTD] NAND Signal that a bitflip was corrected by ECC
Return -EUCLEAN on read when a bitflip was detected and corrected, so the
clients can react and eventually copy the affected block to a spare one.
Make all in kernel users aware of the change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-29 15:06:51 +02:00
Thomas Gleixner 8593fbc68b [MTD] Rework the out of band handling completely
Hopefully the last iteration on this!

The handling of out of band data on NAND was accompanied by tons of fruitless
discussions and halfarsed patches to make it work for a particular
problem. Sufficiently annoyed by I all those "I know it better" mails and the
resonable amount of discarded "it solves my problem" patches, I finally decided
to go for the big rework. After removing the _ecc variants of mtd read/write
functions the solution to satisfy the various requirements was to refactor the
read/write _oob functions in mtd.

The major change is that read/write_oob now takes a pointer to an operation
descriptor structure "struct mtd_oob_ops".instead of having a function with at
least seven arguments.

read/write_oob which should probably renamed to a more descriptive name, can do
the following tasks:

- read/write out of band data
- read/write data content and out of band data
- read/write raw data content and out of band data (ecc disabled)

struct mtd_oob_ops has a mode field, which determines the oob handling mode.

Aside of the MTD_OOB_RAW mode, which is intended to be especially for
diagnostic purposes and some internal functions e.g. bad block table creation,
the other two modes are for mtd clients:

MTD_OOB_PLACE puts/gets the given oob data exactly to/from the place which is
described by the ooboffs and ooblen fields of the mtd_oob_ops strcuture. It's
up to the caller to make sure that the byte positions are not used by the ECC
placement algorithms.

MTD_OOB_AUTO puts/gets the given oob data automaticaly to/from the places in
the out of band area which are described by the oobfree tuples in the ecclayout
data structre which is associated to the devicee.

The decision whether data plus oob or oob only handling is done depends on the
setting of the datbuf member of the data structure. When datbuf == NULL then
the internal read/write_oob functions are selected, otherwise the read/write
data routines are invoked.

Tested on a few platforms with all variants. Please be aware of possible
regressions for your particular device / application scenario

Disclaimer: Any whining will be ignored from those who just contributed "hot
air blurb" and never sat down to tackle the underlying problem of the mess in
the NAND driver grown over time and the big chunk of work to fix up the
existing users. The problem was not the holiness of the existing MTD
interfaces. The problems was the lack of time to go for the big overhaul. It's
easy to add more mess to the existing one, but it takes alot of effort to go
for a real solution.

Improvements and bugfixes are welcome!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-29 15:06:51 +02:00
Thomas Gleixner f4a43cfcec [MTD] Remove silly MTD_WRITE/READ macros
Most of those macros are unused and the used ones just obfuscate
the code. Remove them and fixup all users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-29 15:06:50 +02:00
Thomas Gleixner 5bd34c091a [MTD] NAND Replace oobinfo by ecclayout
The nand_oobinfo structure is not fitting the newer error correction
demands anymore. Replace it by struct nand_ecclayout and fixup the users
all over the place. Keep the nand_oobinfo based ioctl for user space
compability reasons.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-29 15:06:50 +02:00
Thomas Gleixner ff268fb879 [MTD] NAND Consolidate oobinfo handling
The info structure for out of band data was copied into
the mtd structure. Make it a pointer and remove the ability
to set it from userspace. The position of ecc bytes is
defined by the hardware and should not be changed by software.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-29 15:06:49 +02:00
Thomas Gleixner 8be834f762 [MTD] NAND Fix platform structure and NDFC driver
The platform structure was lacking an oobinfo field.
The NDFC driver had some remains from another tree.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-29 15:06:49 +02:00
Andrew Morton 19676ff0a6 [MTD] Fix debug printk format warning in m25p80 SPI chip driver, again.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-29 11:33:33 +01:00
David Woodhouse 33280eac70 [MTD] AMD Geode NAND support can depend on X86_32; we won't see it on x86_64
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-29 11:24:29 +01:00
Thomas Gleixner ba0251fe87 [MTD] NAND Consolidate references and add back default name setting
We have a type pointer. Make use of it instead of the error prone nand_ids[i]
reference.

The NAND driver used to set default name settings from the chip ID
string for the device. The feature got lost during the rework. Add it back.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-27 01:02:13 +02:00
Thomas Gleixner cca3b837bb [MTD] NAND simplify nand_chip_select
nCE setting can be done when the first command is issued to the device.
We keep the deselect functionality as it makes sense to deassert nCE
when the device becomes idle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-27 00:47:18 +02:00
David Woodhouse 29da9cea46 [MTD] Fix thinko in nand_write_page_hwecc()
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-26 23:05:44 +01:00
Thomas Gleixner f75e5097ef [MTD] NAND modularize write function
Modularize the write function and reorganaize the internal buffer
management. Remove obsolete chip options and fixup all affected
users.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-26 18:52:08 +02:00
David Woodhouse e4d222ff18 [MTD] Remove PCI dependency for Geode CS553[56] NAND controller.
PCI is faked on these devices by SMM traps. Don't depend on that --
check for the chipset directly instead.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-26 02:06:27 +01:00
David Woodhouse c5b553cc2c [MTD] Fix NAND_VERIFY_WRITE case to build with tglx's recent changes
Bad tglx. No biscuit.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-25 13:25:17 +01:00
Thomas Gleixner 8546ac4f84 [MTD] Remove the only useless readv implementation
Removing readv from struct mtd_info broke block2mtd. Remove the
reference and the useless default implementation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-25 12:53:47 +01:00
Thomas Gleixner f5bbdacc41 [MTD] NAND Modularize read function
Split the core of the read function out and implement
seperate handling functions for software and hardware
ECC.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-25 12:45:27 +01:00
Thomas Gleixner 7314e9e7d5 [MTD] NAND Cleanup oob functions
Cleanup the code in the oob related functions and
make use of the new NO_READRDY flag.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-25 12:45:27 +01:00
Thomas Gleixner 7a30601b3a [MTD] NAND Introduce NAND_NO_READRDY option
The nand driver has a superflous read ready / command
delay in the read functions. This was added to handle
chips which have an automatic read forward. Newer
chips do not have this functionality anymore. Add this
option to avoid the delay / I/O operation. Mark all
large page chips with the new option flag.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-25 12:45:26 +01:00
Thomas Gleixner 04bbd0eafb [MTD] NAND Initialize controller lock and wq only once
The lock simplifying patch did not move the lock and waitqueue
initialization into the controller allocation patch.
This reinitializes waitqueue and spinlocks also for driver
supplied controller stuctures. Move it into the allocation path.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-25 12:45:26 +01:00
Thomas Gleixner 12efdde313 [MTD] NAND fix cmd_ctrl breakage
The cmd_ctrl rework lacks some state transition flags.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-24 23:45:24 +01:00
Thomas Gleixner ace4dfee56 [MTD] NAND coding style and namespace cleanup
Cleanup the functions which are not going to change in the
next steps.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-24 23:45:24 +01:00
Thomas Gleixner d470a97c70 [MTD] NAND LED support cleanup
Move the define out of the middle of the code and add an
appropriate comment.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 23:48:57 +02:00
Thomas Gleixner cad74f2c38 [MTD] NAND remove write_byte/word function from nand_chip
The previous change of the command / hardware control allows to
remove the write_byte/word functions completely, as their only
user were nand_command and nand_command_lp.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 23:28:48 +02:00
Thomas Gleixner 7abd3ef987 [MTD] Refactor NAND hwcontrol to cmd_ctrl
The hwcontrol function enforced a step by step state machine
for any kind of hardware chip access. Let the hardware driver
know which control bits are set and inform it about a change
of the control lines. Let the hardware driver write out the
command and address bytes directly. This gives a peformance
advantage for address bus controlled chips and simplifies the
quirks in the hardware drivers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 23:25:53 +02:00
Thomas Gleixner 3821720d51 [MTD] Export nand_write_raw
The previous _ecc removal / cleanup broke (i)nftl module usage.
Export the missing symbol.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 22:33:52 +02:00
Thomas Gleixner 85b85fee0c [MTD] Mark NAND drivers TOTO and PPChameleon broken
Both drivers can not be fixed and compiled due to missing header files.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 22:03:39 +02:00
Thomas Gleixner 9223a456da [MTD] Remove read/write _ecc variants
MTD clients are agnostic of FLASH which needs ECC suppport.
Remove the functions and fixup the callers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 17:21:03 +02:00
Thomas Gleixner 2528e8cdf3 [MTD] Remove readv/readv_ecc
These functions were never implemented and added only bloat to
partition and concat code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 16:10:00 +02:00
Thomas Gleixner 9d8522df37 [MTD] Remove nand writev support
NAND writev(_ecc) support is not longer necessary. Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 16:06:03 +02:00
Thomas Gleixner 0cddd6c258 [MTD] ECC rework broke diskonchip
Fix the diskonchip ecc setup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 15:59:58 +02:00
Thomas Gleixner 4cbb9b80e1 Merge branch 'master' of /home/tglx/work/kernel/git/mtd-2.6/
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 12:37:31 +02:00
Thomas Gleixner 6dfc6d250d [MTD] NAND modularize ECC
First step of modularizing ECC support.
- Move ECC related functionality into a seperate embedded data structure
- Get rid of the hardware dependend constants to simplify new ECC models

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 12:00:46 +02:00
Thomas Gleixner 7aa65bfd67 [MTD] NAND cleanup nand_scan
Seperate functionality out of nand_scan so the code is more
readable. No functional change. First step of simplifying
the nand driver.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 11:54:38 +02:00
Thomas Gleixner 58dd8f2bfd [MTD] NAND consolidate data types
The NAND driver used a mix of unsigned char, u_char amd uint8_t
data types. Consolidate to uint8_t usage

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 11:52:35 +02:00
Thomas Gleixner 2c0a2bed92 [MTD] NAND whitespace and formatting cleanup
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 11:50:56 +02:00
Thomas Gleixner ce4c61f184 [MTD] Add support for NDFC NAND controller
NDFC NAND Flash controller is embedded in PPC EP44x SoCs.
Add platform driver based support.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 11:43:28 +02:00
Thomas Gleixner a36ed2995c [MTD] Simplify NAND locking
Replace the chip lock by a the controller lock. For simple drivers a
dummy controller structure is created by the scan code.
This simplifies the locking algorithm in nand_get/release_chip().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 11:37:03 +02:00
Thomas Gleixner 819d6a32c3 [MTD] Improve software ECC calculation
Unrolling the loops produces denser and much faster code.
Add a config switch which allows to select the byte order of the
resulting ecc code. The current Linux implementation has a byte
swap versus the SmartMedia specification

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2006-05-23 11:32:45 +02:00
Joern Engel 5fa433942b [MTD] Introduce MTD_BIT_WRITEABLE
o Add a flag MTD_BIT_WRITEABLE for devices that allow single bits to be
  cleared.
o Replace MTD_PROGRAM_REGIONS with a cleared MTD_BIT_WRITEABLE flag for
  STMicro and Intel Sibley flashes with internal ECC.  Those flashes
  disallow clearing of single bits, unlike regular NOR flashes, so the
  new flag models their behaviour better.
o Remove MTD_ECC.  After the STMicro/Sibley merge, this flag is only set
  and never checked.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-22 23:18:29 +02:00
Joern Engel c8b229de2b [MTD] Merge STMicro NOR_ECC code with Intel Sibley code
In 2002, STMicro started producing NOR flashes with internal ECC protection
for small blocks (8 or 16 bytes).  Support for those flashes was added by me.
In 2005, Intel Sibley flashes copied this strategy and Nico added support for
those.  Merge the code for both.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-22 23:18:12 +02:00
Joern Engel 28318776a8 [MTD] Introduce writesize
At least two flashes exists that have the concept of a minimum write unit,
similar to NAND pages, but no other NAND characteristics.  Therefore, rename
the minimum write unit to "writesize" for all flashes, including NAND.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
2006-05-22 23:18:05 +02:00
David Woodhouse 615191bb1d [MTD] Account for MODULE_SYMBOL_PREFIX when requesting NOR chip driver
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-21 19:03:21 +01:00
David Woodhouse ecde263130 [MTD] Use symbol_request() in old DiskOnChip probe code to find actual driver
The previous code wouldn't work correctly on architectures which have a
non-empty MODULE_SYMBOL_PREFIX, and this version is neater if slightly
less optimal in the built-in case.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-21 18:38:51 +01:00
Jonathan McDowell 3d12c0c75d [MTD] Add Amstrad Delta NAND support
The patch below adds support for the NAND device on the Amstrad Delta.
This is a 32MiB 8bit Toshiba device, with the data bus connected to the
OMAP MPUIO pins and ALE, CLE, NCE, NRE, NWE and NWP all connected to the
Delta's latch2 16bit latch.

Signed-Off-By: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-21 18:11:55 +01:00
Andrew Morton 6c8b44abc8 [MTD] Avoid 64-bit division in mtdconcat
WARNING: "__moddi3" [drivers/mtd/mtdconcat.ko] undefined!

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-20 10:17:21 +01:00
David Woodhouse 5fc3dbc418 [MTD] Use __symbol_get() instead of symbol_get() in NOR chip probe
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-20 02:41:34 +01:00
Andrew Morton dcb6592d72 git-mtd: symbol_get() fix
drivers/mtd/devices/docprobe.c: In function `DoC_Probe':
drivers/mtd/devices/docprobe.c:338: warning: assignment from incompatible pointer type
drivers/mtd/devices/docprobe.c:341: warning: assignment from incompatible pointer type

Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-20 02:39:43 +01:00
David Woodhouse f6a673b3f4 [MTD] Fix printk format error in gen_probe.c
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 22:03:10 +01:00
David Woodhouse fd0e518745 [MTD] Fix mtdconcat build. We didn't introduce mtd->writesize yet.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 21:53:58 +01:00
Alexander Belyakov e8d32937d9 MTD: mtdconcat NAND/Sibley support (rev.2)
There is a second revision of "mtdconcat NAND/Sibley" patch. I hope
the patch will not get damaged as I'm posting it from gmail account,
thanks to Jorn.

The patch adds previously missing concat_writev(),
concat_writev_ecc(), concat_block_isbad(), concat_block_markbad()
functions to make concatenation layer compatible with Sibley and NAND
chips.

Patch has been cleared from whitespaces, fixed some lines of code as
requested. Also I have added code for alignment check that should
support Jorn's "writesize" patch.

Signed-off-by: Alexander Belyakov <alexander.belyakov@intel.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 16:31:31 +01:00
Martin Michlmayr ceb31db11f LASAT depends on MTD_CFI
The following difference was found between the mainline and linux-mips
kernel.  LASAT depends on MTD_CFI.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 16:20:57 +01:00
Martin Michlmayr be21ce1197 Re-add module description for ms02-nv to Kconfig
In an unrelated MTD commit, a description about the ms02-nv module
got removed from Kconfig.  While I personally agree with this
removal, the module maintainer (Maciej W. Rozycki) would like to
see it added back.  In the absense of any consistency regarding
Kconfig descriptions his wish should be followed.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 16:20:37 +01:00
Sean Young 683b30c8e7 [MTD] RFD FTL: Be noisier, and don't assume block without RFD magic are erased
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 12:45:34 +01:00
Vitaly Wool ae282d497d [MTD] generic: propagate oobavail to MTD partitions
'oobavail' parameter of mtd_info structure is now propagated to the MTD
partitions

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 12:34:27 +01:00
Sean Young 599fb3298b [PCMCIA MTD] Fix leak and crash on reboot
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 11:47:48 +01:00
Nicolas Pitre c172471b78 cfi_cmdset_0001: factorize code to wait for flash status
This allows for much better abstraction and separation of the XIP and
non-XIP cases with their own specific implementations.  This fixes the
case where a timeout was tripped on in the XIP case by the code that
was meant for the non-XIP case only.

This also makes for a nice code reduction.

Signed-off-by: Nicolas Pitre <nico@cam.org>
CC: "Alexey, Korolev" <alexey.korolev@intel.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 01:25:37 +01:00
Nicolas Pitre 6e7a6809c5 cfi-cmdset-0001: always update the chip status
... otherwise xip_enable() won't do the right thing.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 01:22:23 +01:00
Josh Boyer df54b52c41 CHIPS: Fix potential starvation in cfi_cmdset_0001
The patch below fixes a potential starvation issue that can arise when
there is contention on a chip during a period when a process is
currently writing to it.  The starvation is avoided by conditionally
rescheduling when the chip is left in a state usable by other processes.

Signed-off-by: Josh Boyer <jdub@us.ibm.com>
Signed-off-by: Tom Gall <tom_gall@vnet.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-17 01:11:17 +01:00
Sergei Shtylyov 35af68b53a NAND: Fix NAND ECC errors on AMD Au1550
On AMD Au1550 the static bus controller fails to keep -CE asserted during
chip ready delay on read commands and the NAND chip being used requires this.
So, the current driver allows nand_base.c to drive -CE manually during the
entire sector read. When the PCMCIA driver is enabled however, occasionally
the ECC errors occur on NAND reads. This happens because the PCMCIA driver
polls sockets periodically and reads one of the board's control/status regs
(BCSRs) which are on the same static bus as the NAND flash, and just use
another chip select (and the NOR flash also resides on that bus), so as the
NAND driver forces NAND chip select asserted and the -RE signal is shared, a
contention occurs on the static bus when BCSR or NOR flash is read while we're
reading from NAND.
    So, we either can't keep interrupts enabled during the whole NAND sector
read (which is hardly acceptable), or have to implement some interlocking
scheme between multiple drivers (which is painful, and makes me shudder :-).
    There's a third way which has proven to work: to force -CE asserted only
while we're waiting for a NAND chip to become ready after a read command,
disabling interrupts for a maximum of 25 microseconds (according to Toshiba
TC58DVM92A1FT00 datasheet -- this chip is mentioned in the board schematics);
for Samsung NAND chip which seems to be actually used this delay is even less,
12 us.

Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16 18:03:18 +01:00
Ben Dooks b020bb7d3b [MTD] Fix build warnings in RedBoot MTD partition parser.
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>
2006-05-16 17:31:15 +01:00
Sergei Shtylyov 155285c477 NAND: AMD Au1550 driver reads write-only register
During the last cleanup of the AMD Au1550 NAND driver the old buglet was
reintroduced: as the MEM_STNDCTL register is write-only and seem to always
read as 0x31, read-modify-write to it done in au1xxx_nand_init() will have the
side effect of enabling -RCS0/1 pin override (via bits 4/5 of this reg.), thus
possibly causing a contention on the static bus when the NOR flash (using
-RCS0) or board control status registers (using -RCS2) are read. Luckily, this
goes away with a first NAND access, since au1550_hwcontrol() doesn't try to
read this register before writing anymore.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16 17:25:19 +01:00
David Woodhouse cead4dbc03 [MTD NAND] Make various initfuncs static, remove #ifdef MODULE from exitfuncs
We all inherited the same error from the original NAND board driver which
got copied and changed. Fix them all at once...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16 13:54:50 +01:00
Adrian Bunk ce589a0328 drivers/mtd/devices/docprobe.c: correct #if's
On Mon, May 15, 2006 at 12:56:37AM -0700, Andrew Morton wrote:
>...
> Changes since 2.6.17-rc3-mm1:
>...
>  git-mtd.patch
>...
>  git trees
>...

If we correct the names of the config options, the code might actually
work as intended...

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16 13:12:12 +01:00
David Woodhouse f41a5f804a [MTD] Add help text for MTD_NAND_CS553X option.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16 13:11:47 +01:00
David Woodhouse 52239da1b0 [MTD NAND] Modify check for modules registering NAND devices without ->owner
Make it work even with compilers which lack the wit to notice that
THIS_MODULE is always non-NULL. Use #ifdef MODULE instead. It's only
a temporary debugging check anyway.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 16:54:39 +01:00
David Woodhouse 2f206701ae [MTD] Remove gratuitous inclusion of ARM-only header from physmap.c
The physmap platform driver conversion added to physmap.c an include
of asm/mach/flash.h which is 1) ARM-specific; and 2) isn't actually
necessary.  Remove it.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 11:59:20 +01:00
David Woodhouse 151e76590f [MTD] Fix legacy character sets throughout drivers/mtd, include/linux/mtd
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 01:51:54 +01:00
David Woodhouse 0f5ae3d2e9 [MTD] Deal correctly with NOR chips which are smaller than the map window
We used to calculate the number of chips to be zero, allocate an array
of that size, then nasty things would happen when we attempt to access
the first object in that zero-sized array.

Now, if the number of _full_ chips that would fit into the map is zero,
we allocate an array of one anyway, and then artificially reduce the
total size of the resulting MTD device to fit in the map.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 01:40:50 +01:00
Jesper Juhl a6550e57f9 mtd: fix memory leak in block2mtd_setup()
There's a mem leak in drivers/mtd/devices/block2mtd.c::block2mtd_setup()

We can leak 'name' allocated with kmalloc in 'parse_name' if leave via
the 'parse_err' macro since it contains a return but doesn't do any
freeing.

Spotted by coverity checker as bug 615.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 01:21:31 +01:00
David Woodhouse 552d920518 [MTD] Fix module refcounting in NAND board drivers.
The _board_ driver needs to be mtd->owner, and it in turn pins the
nand.ko module. Fix them all to actually do that, and fix nand.ko not to
overwrite it -- and also to check that the caller sets it, if the caller
is a module.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 01:20:46 +01:00
Jesper Juhl 4f678a58d3 mtd: fix memory leaks in phram_setup
There are two code paths in drivers/mtd/devices/phram.c::phram_setup() that
will leak memory.
Memory is allocated to the variable 'name' with kmalloc() by the
parse_name() function, but if we leave by way of the parse_err() macro,
then that memory is never kfree()'d, nor is it ever used with
register_device() so it won't be freed later either - leak.

Found by the Coverity checker as #593 - simple fix below.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-14 00:13:30 +01:00
David Woodhouse e0c7d76753 [MTD NAND] Indent all of drivers/mtd/nand/*.c.
It was just too painful to deal with.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-13 18:07:53 +01:00
David Woodhouse 6943f8af7d [MTD NAND] Reduce paranoia level when scanning for bad blocks on virgin chips
We were scanning for 0xFF through the entire chip -- which takes a while
when it's a 512MiB device as I have on my current toy. The specs only say
we need to check certain bytes -- so do only that.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-13 16:14:26 +01:00
David Woodhouse 9d75414b4f [MTD NAND] Update CS553x NAND driver: Hardware ECC support, optimisations.
- Implement HW ECC support,
- Provide read_buf() and write_buf() routines using memcpy
- Use on-flash bad block table
- Fix module refcounting
- Avoid read/modify/write in hwcontrol()
- Minor cosmetic fixes

Partly based on code and ideas from Tom Sylla <tom.sylla@amd.com>

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-13 04:12:40 +01:00
David Woodhouse c3f8abf481 [MTD NAND] Use vmalloc for buffer when scanning for bad blocks.
These new chips have 128KiB blocks. Don't try to kmalloc that.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-13 04:03:42 +01:00
Egry Gábor 4992a9e888 Trivial typo fixes in Kconfig files (MTD).
Signed-off-by: Egry Gábor <gaboregry@t-online.hu>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-12 17:35:02 +01:00
Kyungmin Park 752870707f OneNAND: fix block command typo
We need to check block cmd only instead with comparing with cmd

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-05-12 15:35:51 +01:00
Kyungmin Park 493c646077 OneNAND: One-Time Programmable (OTP) support
One Block of the NAND Flash Array memory is reserved as
a One-Time Programmable Block memory area.
Also, 1st Block of NAND Flash Array can be used as OTP.

The OTP block can be read, programmed and locked using the same
operations as any other NAND Flash Array memory block.
OTP block cannot be erased.

OTP block is fully-guaranteed to be a valid block.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-05-12 15:35:50 +01:00
Kyungmin Park 3cecf69ecd OneNAND: Handle erase correctly in Double Density Package (DDP)
There's erase bug in DDP.
We need to add DDP select in erase

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-05-12 15:35:48 +01:00
Kyungmin Park 34c1060959 OneNAND: Write oob area with aligned size, mtd->oobsize
There's some problem with write oob in serveral platform.
So we write oob with oobsize aligned (16bytes) instead of 3 bytes (from {2,
3})

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-05-12 15:35:47 +01:00
Kyungmin Park 8e6ec69059 OneNAND: Add write_oob verify function
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
2006-05-12 15:35:47 +01:00
Jarkko Lavinen d9777f1c42 OneNand: Fix free byte positions.
Some free byte positions at onenand_oob_64 were wrong. This was also
reported by Christian Lehne. 3 byte slots are at 2+16*i and 2 byte
slots at 14+16*i.

Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
2006-05-12 15:35:46 +01:00
Kyungmin Park 9c01f87db1 OneNAND: handle byte access on BufferRAM
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-05-12 15:35:45 +01:00
Kyungmin Park 628bee6593 OneNAND: Add touch_softlock_watchdog()
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2006-05-12 15:35:45 +01:00
Jean-Luc Leger 1867b7e3f8 [MTD] Fix invalid default value of CONFIG_MTD_PCMCIA_ANONYMOUS in Kconfig
Default values for boolean and tristate options can only be 'y', 'm' or 'n'.
This patch removes wrong default for MTD_PCMCIA_ANONYMOUS.

Signed-off-by: Jean-Luc Leger <jean-luc.leger@dspnet.fr.eu.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-12 11:53:40 +01:00
David Woodhouse f0ad11d060 [MTD] Fix capitalisation in export of old doc2001.c initfunc
Oops. Stupid StudlyCaps. Again.

This driver is doubly-deprecated because is was subsumed into doc2000.c
and _also_ we want people to start using the new NAND wrapper for these
devices anyway. But ISTR there was still one person using it because
something didn't work for them. Must chase that up and then I can kill
this.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-12 11:40:13 +01:00
David Woodhouse 179fdc3f8d [MTD] Basic NAND driver for AMD/NatSemi CS5535/CS5536 Geode companion chip
This lacks hardware ECC support and a few optimisations we're going to
want fairly soon, but it works well enough to mount and use JFFS2.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-11 22:35:28 +01:00
David Woodhouse b04ecae3d6 [MTD] Fix capitalisation in export of DiskOnChip Millennium initfunc
Stupid StudlyCaps. Who did that?

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-10 16:16:13 +01:00
David Woodhouse 83ea4ef213 Export cfi_cmdset_0020 and cfi_cmdset_0002 with EXPORT_SYMBOL_GPL
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-08 22:58:25 +01:00
David Woodhouse a15bdeef10 Remove use of inter_module_crap in NOR flash chip drivers.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-08 22:35:05 +01:00
David Woodhouse 396674e58f Fix non-modular case for DiskOnChip probe
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-08 17:10:11 +01:00
David Woodhouse 5e535429a9 Remove inter_module_xxx() from DiskOnChip drivers.
Finally putting it back how it was before Keith got at it -- yay :)

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-08 14:05:05 +01:00
Lennert Buytenhek 73566edf9b [MTD] Convert physmap to platform driver
After dwmw2 let me know it ought to be done, I rewrote the physmap map
driver to be a platform driver.  I know zilch about the driver model,
so I probably botched it in some way, but I've done some tests on an
ixp23xx board which uses physmap, and it all seems to work.

In order to not break existing physmap users, I've added some compat
code that will instantiate a platform device iff CONFIG_MTD_PHYSMAP_LEN
is defined and != 0.  Also, I've changed the default value for
CONFIG_MTD_PHYSMAP_LEN to zero, so that people who inadvertently
compile in physmap (or new, platform-style, users of physmap) don't get
burned.

This works pretty well -- the new physmap driver is a drop-in replacement
for the old one, and works on said ixp23xx board without any code changes
needed.  (This should hold as long as users don't touch 'physmap_map'
directly.)

Once all physmap users have been converted to instantiate their own
platform devices, the compat code can go.  (Or we decide that we can
change all the in-tree users at the same time, and never merge the
compat code.)

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-07 17:16:36 +01:00
Lennert Buytenhek 7d532dd50d ts72xx NAND driver
The TS-72xx is a series of embedded single board computers from
Technologic Systems based on the Cirrus ep93xx (arm920t based) CPU.

The TS-7200 uses NOR flash, while all the other models in the series
(TS-7250, TS-7260) use NAND flash -- included is a driver for the NAND
flash on those boards.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-30 21:19:44 +01:00
Daniel Drake fbbc21c6a4 mtd: SC520CDP should depend on MTD_CONCAT
Toralf Förster found a compile error when CONFIG_MTD_SC520CDP=y and
CONFIG_MTD_CONCAT=n:

drivers/built-in.o: In function `init_sc520cdp':
sc520cdp.c:(.init.text+0xb4de): undefined reference to `mtd_concat_create'
drivers/built-in.o: In function `cleanup_sc520cdp':
sc520cdp.c:(.exit.text+0x14bc): undefined reference to `mtd_concat_destroy'

This patch fixes it.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2006-04-29 08:48:55 -05:00
Joern Engel 954c242273 mtd: improve parameter parsing for block2mtd
Expand the parameter parsing for block2mtd.  It now accepts:
Ki, Mi, Gi	- the official prefixes for binary multiples,
		  see http://physics.nist.gov/cuu/Units/binary.html,
ki		- mistake on my side and analog to "k" for decimal multiples,
KiB, MiB, GiB	- for people that prefer to add a "B" for byte,
kiB		- combination of the above.

There were complaints about not accepting "k" for 1024.  This has long
been common practice, but is known to lead to confusion.  Hence the new
SI units and hence block2mtd only accepts units that cannot be confused
with decimal units.  Diverging from common practice doesn't always please
people, even if the change is for the better.

Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-04-19 09:10:06 +01:00
Richard Purdie 6e62e8c2c7 MTD: Correct Poodle partition size
Correct the MTD NAND partition size for Poodle (Sharp Zaurus SL-5600)

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2006-04-18 02:04:18 +01:00
Thago Galesi b802c07411 [PATCH] Remove unnecessary kmalloc/kfree calls in mtdchar
This patch removes repeated calls to kmalloc / kfree in mtd_write /
mtd_read functions, replacing them by a single kmalloc / kfree pair.

Signed-off-by: Thiago Galesi <thiagogalesi@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-17 17:38:15 +01:00
Jörn Engel a6c591eda3 Remove unchecked MTD flags
Several flags are set by some devices, but never checked.  Remove them.

Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-17 15:48:17 +01:00
Jörn Engel af63a3bcac Make mtdblock_ro unconditionally readonly
mtdblock_ro is by definition readonly.  Remove the silly checks.

Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-17 15:48:16 +01:00
Jörn Engel 7f7c08dfdf Simplify test for RAM devices
mtdblock is the only user of aggregate capabilities in mtd.  This is clearly
bogus and should be changed.  In particular, it tries to determine whether
the device in question is a piece of RAM.  For every single driver that fits
the current criteria, an easier test would be to check for the type being
MTD_RAM.

Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-17 15:48:16 +01:00
Randy Dunlap b104513c74 [PATCH] MTD: m25p80: fix printk format warning
Fix printk format warning:
drivers/mtd/devices/m25p80.c:189: warning: format '%zd' expects type
'signed size_t', but argument 6 has type 'u_int32_t'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-11 20:05:20 -04:00
Jesper Juhl 6cc449c7d0 [PATCH] mtd, nettel: fix build error and implicit declaration
I just hit the following error and warning :
  drivers/mtd/maps/nettel.c: In function `nettel_init':
  drivers/mtd/maps/nettel.c:418: error: `ROOT_DEV' undeclared (first use in this function)
  drivers/mtd/maps/nettel.c:418: error: (Each undeclared identifier is reported only once
  drivers/mtd/maps/nettel.c:418: error: for each function it appears in.)
  drivers/mtd/maps/nettel.c:418: warning: implicit declaration of function `MKDEV'
  make[3]: *** [drivers/mtd/maps/nettel.o] Error 1
  make[2]: *** [drivers/mtd/maps] Error 2
  make[1]: *** [drivers/mtd] Error 2
The patch fixes the missing ROOT_DEV declaration by including linux/root_dev.h
and fixes the implicit declaration of MKDEV by including linux/kdev_t.h .

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-11 19:42:44 -04:00
Joern Engel acc8dadc0b [PATCH] Remove blkmtd
Remove the blkmtd driver.

- An alternative exists (block2mtd) that hasn't had  bug report for > 1 year.

- Most embedded people tend to use ancient kernels with custom patches from
  mtd cvs and elsewhere, so the 1 year warning period neither helps nor hurts
  them too much.

- It's in the way of klibc.  The problems caused by pulling blkmtd support
  are fairly low, while the problems caused by delaying klibc can be fairly
  substantial.  At best, this would be a severe burden on hpa's time.

Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:43 -07:00
Linus Torvalds 63589ed078 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (48 commits)
  Documentation: fix minor kernel-doc warnings
  BUG_ON() Conversion in drivers/net/
  BUG_ON() Conversion in drivers/s390/net/lcs.c
  BUG_ON() Conversion in mm/slab.c
  BUG_ON() Conversion in mm/highmem.c
  BUG_ON() Conversion in kernel/signal.c
  BUG_ON() Conversion in kernel/signal.c
  BUG_ON() Conversion in kernel/ptrace.c
  BUG_ON() Conversion in ipc/shm.c
  BUG_ON() Conversion in fs/freevxfs/
  BUG_ON() Conversion in fs/udf/
  BUG_ON() Conversion in fs/sysv/
  BUG_ON() Conversion in fs/inode.c
  BUG_ON() Conversion in fs/fcntl.c
  BUG_ON() Conversion in fs/dquot.c
  BUG_ON() Conversion in md/raid10.c
  BUG_ON() Conversion in md/raid6main.c
  BUG_ON() Conversion in md/raid5.c
  Fix minor documentation typo
  BFP->BPF in Documentation/networking/tuntap.txt
  ...
2006-04-02 12:58:45 -07:00
Linus Torvalds 86dca4f8e6 Merge master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (33 commits)
  [PATCH] pcmcia: declare pccard_iodyn_ops (fix m8xx_pcmcia.c compilation error)
  [PATCH] pcmcia: fix pcmcia_device_remove oops
  [PATCH] pcmcia: Add support for Possio GCC AKA PCMCIA Siemens MC45
  [PATCH] pcmcia: pseudo device handling update
  [PATCH] pcmcia: convert DEV_OK to pcmcia_dev_present
  [PATCH] pcmcia: use bitfield instead of p_state and state
  [PATCH] pcmcia: remove unused p_dev->state flags
  [PATCH] pcmcia: make pcmcia_release_{io,irq} static
  [PATCH] pcmcia: add return value to _config() functions
  [PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
  [PATCH] pcmcia: embed dev_link_t into struct pcmcia_device
  [PATCH] pcmcia: rename pcmcia_device.state
  [PATCH] pcmcia: remove unneeded Vcc pseudo setting
  [PATCH] pcmcia: remove export of pcmcia_release_configuration
  [PATCH] pcmcia: default suspend and resume handling
  [PATCH] pcmcia: convert remaining users of pcmcia_release_io and _irq
  [PATCH] pcmcia: add pcmcia_disable_device
  [PATCH] serial_cs: add Merlin U630 IDs
  [PATCH] pcmcia: AT91RM9200 Compact Flash driver
  [PATCH] pcmcia: socket.functions starts with 1
  ...
2006-04-02 12:49:59 -07:00
Anders Larsen 3a3f8a126d MTD: remove obsolete Kconfig options
Remove the obsolete Kconfig options MTD_CFI_AMDSTD_RETRY
and MTD_CFI_AMDSTD_RETRY_MAX

The code that depended on these was removed in early 2004, but
Kconfig was not updated accordingly.

Signed-off-by: Anders Larsen <al@alarsen.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01 01:02:42 +02:00
Richard Purdie 8fe833c1b0 [PATCH] LED: add NAND MTD activity LED trigger
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:57 -08:00
Petri T. Koistinen b5ac5d7edb [PATCH] drivers/mtd/maps/vmax301.c: fix off by one vmax_mtd
Fix an obvious off-by-one error (vmax_mtd[] contains two elements).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
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>
2006-03-31 12:18:49 -08:00
Herbert Poetzl 4d55146598 [PATCH] mtd: fix broken name_to_dev_t() declaration
drivers/mtd/devices/blkmtd.c uses a local declaration of name_to_dev_t()
which is inconsistant with the real one.  the following patch fixes this by
removing the local declaration and including mount.h instead

this patch was originally done by Micah Anderson.

Signed-off-by: Herbert Poetzl <herbert@13thfloor.at>
Acked-by: Micah Anderson <micah@riseup.net>
Acked-by: Daniel Hokka Zakrisson <daniel@hozac.com>
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>
2006-03-31 12:18:49 -08:00
Peter Korsgaard 84e699e6ec [PATCH] mtd/redboot: Handle holes in fis table
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>
2006-03-31 12:18:49 -08:00
Pavel Machek a63ec1b7b7 [PATCH] Add chip used in collie to jedec_probe
This adds flash chip used in Sharp Zaurus sl5500 (collie) to jedec_probe.
Values work for read-only access, but I have not figured out how to do
read-write.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Richard Purdie <rpurdie@rpsys.net>
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>
2006-03-31 12:18:49 -08:00
Eric Sesterhenn edcbce2150 [PATCH] Dead code in mtd/maps/pci.c
This fixes coverity bug #12.  The first two gotos in the function still
have the initial value for mtd set.  And the third goto just triggers for
!mtd

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
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>
2006-03-31 12:18:49 -08:00
Pavel Machek 2d2dce0eb6 [PATCH] Kill ifdefs in mtdcore.c
Kill unneccessary ifdefs in mtdcore.c.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:49 -08:00
Eric Sesterhenn / snakebyte 8b68a12633 [PATCH] Fix debug statement in inftlcore.c
Fix a copy/paste bug found by cpminer inside the inftlcore.c file

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Greg Ungerer <gerg@snapgear.com>
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>
2006-03-31 12:18:48 -08:00
Atsushi Nemoto b175d03dd2 [PATCH] mtd cmdlinepart: allow zero offset value
Current cmdlinepart.c uses offset value 0 to specify a continuous
partition.  This prevents creating a second partition starting at 0.

For example, I can split 4MB device using "mtdparts=id:2M,2M", but I can
not do "mtdparts=id:2M@2M,2M@0" to swap mtd0 and mtd1.

This patch introduces special OFFSET_CONTINUOUS value for a continuous
partition and allows 0 for offset value.

Also this patch replaces 0xffffffff with UINT_MAX for SIZE_REMAINING.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
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>
2006-03-31 12:18:48 -08:00
Tobias Klauser 87d10f3c79 [PATCH] drivers/mtd: Use ARRAY_SIZE macro
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove
duplicates of the macro.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
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>
2006-03-31 12:18:48 -08:00
Adrian Bunk 54af6b4648 [PATCH] MTD_NAND_SHARPSL and MTD_NAND_NANDSIM should be tristate's
MTD_NAND=m and MTD_NAND_SHARPSL=y or MTD_NAND_NANDSIM=y are illegal
combinations that mustn't be allowed.

This patch fixes this bug by making MTD_NAND_SHARPSL and MTD_NAND_NANDSIM
tristate's.

Additionally, it fixes some whitespace damage at these options.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: "Artem B. Bityutskiy" <dedekind@yandex.ru>
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>
2006-03-31 12:18:48 -08:00
Adrian Bunk 0500abf521 [PATCH] drivers/mtd/: small cleanups
- chips/sharp.c: make two needlessly global functions static

- move some declarations to a header file where they belong to

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:48 -08:00
Ingo Molnar 48b192686d [PATCH] sem2mutex: drivers/mtd/
Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
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>
2006-03-31 12:18:48 -08:00
Ingo Molnar 040d79f906 [PATCH] sem2mutex: mtd/doc2000.c
Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
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>
2006-03-31 12:18:48 -08:00
Andrew Morton 37466ea85a [PATCH] m25p80: printk warning fix
drivers/mtd/devices/m25p80.c: In function `m25p80_erase':
drivers/mtd/devices/m25p80.c:189: warning: signed size_t format, different type arg (arg 6)

Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:48 -08:00
Dominik Brodowski e2d4096365 [PATCH] pcmcia: use bitfield instead of p_state and state
Instead of the two status values struct pcmcia_device->p_state and state,
use descriptive bitfields. Most value-checking in drivers was invalid, as
the core now only calls the ->remove() (a.k.a. detach) function in case the
attachement _and_ configuration was successful.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:33 +02:00
Dominik Brodowski 15b99ac172 [PATCH] pcmcia: add return value to _config() functions
Most of the driver initialization isn't done in the .probe function, but in
the internal _config() functions. Make them return a value, so that .probe
can properly report whether the probing of the device succeeded or not.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:06 +02:00
Dominik Brodowski fba395eee7 [PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
dev_link_t * and client_handle_t both mean struct pcmcai_device * by now.
Therefore, remove all such indirections.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:21:06 +02:00
Dominik Brodowski fd238232cd [PATCH] pcmcia: embed dev_link_t into struct pcmcia_device
Embed dev_link_t into struct pcmcia_device(), as they basically address the
same entity. The actual contents of dev_link_t will be cleaned up step by step.
This patch includes a bugfix from and signed-off-by Andrew Morton.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:57 +02:00
Dominik Brodowski 70294b4683 [PATCH] pcmcia: remove unneeded Vcc pseudo setting
As we do not allow setting Vcc in the pcmcia core, and Vpp1 and
Vpp2 can only be set to the same value, a lot of code can be
streamlined.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:55 +02:00
Dominik Brodowski 4bbed52314 [PATCH] pcmcia: remove export of pcmcia_release_configuration
Handle the _modifying_ operation sm91c92_cs requires in
pcmcia_modify_configuration, so that the only remaining users
of pcmcia_release_configuration() are within the pcmcia core
module.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:53 +02:00
Adrian Bunk 8917f6f70b Kconfig help: MTD_JEDECPROBE already supports Intel
Intel chips are already supported.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
2006-03-26 19:15:03 +02:00
Eric Sesterhenn 373ebfbf17 BUG_ON() Conversion in drivers/mtd/
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-26 18:15:12 +02:00
Rusty Russell 8d3b33f67f [PATCH] Remove MODULE_PARM
MODULE_PARM was actually breaking: recent gcc version optimize them out as
unused.  It's time to replace the last users, which are generally in the
most unloved drivers anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:52 -08:00
David Brownell 3cb4f09fc2 [PATCH] mtd_dataflash, fix block vs page erase
Fix a bug in the block-erase optimization for Dataflash; it was using block
erase even for smaller segments that need page erase.

That wouldn't matter for JFFS2, which never erases less than one block
(sometimes several blocks), but for other callers it might.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-14 07:57:17 -08:00
John Bowler 77a3313551 [PATCH] "drivers/mtd/redboot.c: recognise a foreign byte sex partition table" update
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>
2006-03-02 08:33:07 -08:00
John Bowler 9cff3372bf [PATCH] drivers/mtd/redboot.c: recognise a foreign byte sex partition table
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>
2006-02-28 20:53:43 -08:00
Simon Vogl c314b6f1fa [PATCH] cfi: init wait queue in chip struct
Fix a kernel oops for Intel P30 flashes, where the wait queue head was not
initialized for the flchip struct, which in turn caused a crash at the
first read operation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-24 14:31:37 -08:00
Alexey Korolev d86d43706a [PATCH] cfi_cmdset_0001: fix range for cache invalidation
I found an issue in cfi_cmdset0001.c.  It is related to cache region
invalidation in the buffered write procedure.

The code performs cache invalidation from "cmd_addr" to "cmd_adr + len" in
do_write_buffer() while we modify region from "adr" to "adr+len".

This issue affects writes + reads of data by small chunks.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-20 20:00:09 -08:00
Al Viro 034d2f5af1 [PATCH] arm: fix dependencies for MTD_XIP
MTD_XIP depends on having working asm/mtd-xip.h; it's not just per-architecture
(arm-only, as current Kconfig would have it), but actually per-subarch as
well.  Introduced a new symbol (ARCH_MTD_XIP) set by arch Kconfig; MTD_XIP
depends on it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-08 01:02:58 -05:00
Martin Michlmayr 75b84e94aa [PATCH] Fix compilation errors in maps/dc21285.c
CC      drivers/mtd/maps/dc21285.o
drivers/mtd/maps/dc21285.c: In function `dc21285_copy_to_32':
drivers/mtd/maps/dc21285.c:113: error: invalid lvalue in increment
drivers/mtd/maps/dc21285.c: In function `dc21285_copy_to_16':
drivers/mtd/maps/dc21285.c:124: error: invalid lvalue in increment
drivers/mtd/maps/dc21285.c: In function `dc21285_copy_to_8':
drivers/mtd/maps/dc21285.c:134: error: invalid lvalue in increment
make[3]: *** [drivers/mtd/maps/dc21285.o] Error 1

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:01 -08:00
Alexey Dobriyan 70e5101576 [PATCH] tsunami_flash: fix "parse error before ';' token"
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:10 -08:00
Adrian Bunk fd279197b1 [PATCH] build kernel/intermodule.c only when required
Build kernel/intermodule.c only when required.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-16 23:15:26 -08:00
Adrian Bunk 3001aa826e [PATCH] no longer mark MTD_OBSOLETE_CHIPS as BROKEN
This patch removes the wrong dependency of MTD_OBSOLETE_CHIPS on BROKEN and
marks the non-compiling MTD_AMDSTD and MTD_JEDEC drivers as BROKEN.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-16 23:15:26 -08:00
Arjan van de Ven 858119e159 [PATCH] Unlinline a bunch of other functions
Remove the "inline" keyword from a bunch of big functions in the kernel with
the goal of shrinking it by 30kb to 40kb

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 18:27:06 -08:00
David Brownell 7111763d39 [PATCH] spi: misc fixes
This collects some small SPI patches that seem to be missing from the MM tree:

  - spi_butterfly kbuild hooks got dropped somehow; this restores them
  - quick fix for a (theoretical?) m25p80_write() oops noted by Andrew
  - quick fix for a potential config-specific oops for mtd_dataflash()
  - minor doc tweaks

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:56 -08:00
Vitaly Wool 8275c642cc [PATCH] spi: use linked lists rather than an array
This makes the SPI core and its users access transfers in the SPI message
structure as linked list not as an array, as discussed on LKML.

From: David Brownell <dbrownell@users.sourceforge.net>

  Updates including doc, bugfixes to the list code, add
  spi_message_add_tail().  Plus, initialize things _before_ grabbing the
  locks in some cases (in case it grows more expensive).  This also merges
  some bitbang updates of mine that didn't yet make it into the mm tree.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Dmitry Pervushin <dpervushin@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:56 -08:00
Mike Lavender 2f9f762879 [PATCH] spi: M25 series SPI flash
This was originally a driver for the ST M25P80 SPI flash.  It's been
updated slightly to handle other M25P series chips.

For many of these chips, the specific type could be probed, but for now
this just requires static setup with flash_platform_data that lists the
chip type (size, format) and any default partitioning to use.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Mike Lavender <mike@steroidmicros.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:55 -08:00
David Brownell 1d6432fe10 [PATCH] spi: mtd dataflash driver
This is a conversion of the AT91rm9200 DataFlash MTD driver to use the
lightweight SPI framework, and no longer be AT91-specific.  It compiles
down to less than 3KBytes on ARM.

The driver allows board-specific init code to provide platform_data with
the relevant MTD partitioning information, and hotplugs.

This version has been lightly tested.  Its parent at91_dataflash driver has
been pretty well banged on, although kernel.org JFFS2 dataflash support was
acting broken the last time I tried it.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13 16:29:54 -08:00
Jesper Juhl 3c6bee1d40 [PATCH] turn "const static" into "static const"
ICC likes to complain about storage class not being first, GCC doesn't
care much (except for cases like "inline static").
have a hard time seeing how it could break anything.

Thanks to Gabriel A. Devenyi for pointing out
http://linuxicc.sourceforge.net/ which is what made me create this patch.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:55 -08:00
Russell King 0a3a98f6dd Merge Linus' tree. 2006-01-09 19:18:33 +00:00
Christoph Hellwig a885c8c431 [PATCH] Add block_device_operations.getgeo block device method
HDIO_GETGEO is implemented in most block drivers, and all of them have to
duplicate the code to copy the structure to userspace, as well as getting
the start sector.  This patch moves that to common code [1] and adds a
->getgeo method to fill out the raw kernel hd_geometry structure.  For many
drivers this means ->ioctl can go away now.

[1] the s390 block drivers are odd in this respect.  xpram sets ->start
    to 4 always which seems more than odd, and the dasd driver shifts
    the start offset around, probably because of it's non-standard
    sector size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@suse.de>
Cc: <mike.miller@hp.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:54 -08:00
Tim Schmielau de25968cc8 [PATCH] fix more missing includes
Include fixes for 2.6.14-git11.  Should allow to remove sched.h from
module.h on i386, x86_64, arm, ia64, ppc, ppc64, and s390.  Probably more
to come since I haven't yet checked the other archs.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:45 -08:00
Russell King 0fec53a24a [ARM] Remove EPXA10DB machine support
EPXA10DB seems to be uncared for:
- the "PLD" code has never been merged
- no one has reported that this platform has been broken since
  at least 2.6.10
- interest seems to have dried up around March 2003.

Therefore, remove EPXA10DB support.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-08 22:37:46 +00:00
Russell King f8ce25476d [ARM] Move asm/hardware/clock.h to linux/clk.h
This is needs to be visible to other architectures using the AMBA
bus and peripherals.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-07 16:15:52 +00:00
Russell King 123656d4cc Merge with Linus' kernel. 2006-01-07 14:40:05 +00:00
Dominik Brodowski f8cfa618dc [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback
Unify the EVENT_CARD_INSERTION and "attach" callbacks to one unified
probe() callback. As all in-kernel drivers are changed to this new
callback, there will be no temporary backwards-compatibility. Inside a
probe() function, each driver _must_ set struct pcmcia_device
*p_dev->instance and instance->handle correctly.

With these patches, the basic driver interface for 16-bit PCMCIA drivers
now has the classic four callbacks known also from other buses:

        int (*probe)            (struct pcmcia_device *dev);
        void (*remove)          (struct pcmcia_device *dev);

        int (*suspend)          (struct pcmcia_device *dev);
        int (*resume)           (struct pcmcia_device *dev);

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:03:24 +01:00
Dominik Brodowski b463581154 [PATCH] pcmcia: remove dev_list from drivers
The linked list of devices managed by each PCMCIA driver is, in very most
cases, unused. Therefore, remove it from many drivers.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:03:20 +01:00
Dominik Brodowski cc3b4866be [PATCH] pcmcia: unify detach, REMOVAL_EVENT handlers into one remove callback
Unify the "detach" and REMOVAL_EVENT handlers to one "remove" function.
Old functionality is preserved, for the moment.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:03:10 +01:00
Dominik Brodowski 98e4c28b7e [PATCH] pcmcia: new suspend core
Move the suspend and resume methods out of the event handler, and into
special functions. Also use these functions for pre- and post-reset, as
almost all drivers already do, and the remaining ones can easily be
converted.

Bugfix to include/pcmcia/ds.c
Signed-off-by: Andrew Morton <akpm@osdl.org>

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-05 23:59:02 +01:00
Russell King a8d3584a2d [ARM] Remove clk_use()/clk_unuse()
It seems that clk_use() and clk_unuse() are additional complexity
which isn't required anymore.  Remove them from the clock framework
to avoid the additional confusion which they cause, and update all
ARM machine types except for OMAP.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-03 18:41:37 +00:00
Adrian Bunk 0b57ee9e55 [SPARC]: introduce a SPARC Kconfig symbol
Introduce a Kconfig symbol SPARC that is defined on both the sparc and
sparc64 architectures.

This symbol makes some dependencies more readable.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-22 23:09:54 -08:00
Kyungmin Park 27f4e08347 [PATCH] mtd onenand driver: use platform_device.h instead device.h
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-18 16:29:11 -08:00
Kyungmin Park 532a37cf8d [PATCH] mtd onenand driver: reduce stack usage
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-18 16:28:24 -08:00
Kyungmin Park 20ba89a361 [PATCH] mtd onenand driver: fix unlock problem in DDP 2005-12-18 16:28:23 -08:00
Kyungmin Park 37b1cc3910 [PATCH] mtd onenand driver: check correct manufacturer
This (and the three subsequent patches) is working well on OMAP H4 with
2.6.15-rc4 kernel and passes the LTP fs test.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-18 16:28:23 -08:00
Andrew Morton 3fe968f167 [PATCH] blkmtd: use clear_page_dirty()
SetPageDirty() and ClearPageDirty() are low-level thing which filesystems
shouldn't be using.  They bypass dirty page accounting.

Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12 08:57:41 -08:00
Adrian Bunk 2b9175c174 [MTD] Make functions static, include header files with prototypes
This patch contains the following possible cleanups:
- every file should #include the headers containing the prototypes for
  it's global functions
- make needlessly global functions static

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:54:58 +01:00
Richard Purdie ee2d49de3e [MTD] chips: make sharps driver usable again
Update the pre-CFI Sharp driver sharps.c so it compiles.  map_read32 /
map_write32 no longer exist in the kernel so the driver is totally broken
as it stands.  The replacement functions use different parameters resulting
in the other changes.

Change collie to use this driver until someone works out why the cfi driver
fails on that machine.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Tested-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:49:03 +01:00
Thomas Gleixner 72af3b2c5a [MTD] Remove bogus PQ2FADS driver
Remove disfunctional driver, which slipped through the review mechanism

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:46:16 +01:00
Luiz Capitulino e2602b347a [MTD] maps: sparse fixup
The patch below fixes the following sparse warning:

drivers/mtd/maps/nettel.c:482:27: warning: Using plain integer as NULL pointer

Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:37:56 +01:00
Nicolas Pitre 8bc3b3804a [MTD] cfi_cmdset_0001: relax locking rules for multi hardware partition support
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:36:35 +01:00
David Woodhouse 7ac571f8d0 [MTD] Make some tables 'const' so they can live in .rodata
arjan: drivers/mtd/maps/sc520cdp.c:167: warning: par_table is never written to and should be declared 'const'
arjan: drivers/mtd/maps/pci.c:105: warning: mtd_pci_map is never written to and should be declared 'const'
arjan: mind fixing those up ?

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:33:50 +01:00
John Bowler 3c77354794 [MTD] maps/ixp4xx: half-word boundary and little-endian fixups
ixp4xx updates:
  - Handle reads that don't start on a half-word boundary.
  - Make it work when CPU is in little-endian mode.

Signed-off-by: John Bowler <jbowler@acm.org>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:29:37 +01:00
Todd Poynor 987d24018d [MTD] CFI: Use 16-bit access to autoselect/read device id data
Recent models of Intel/Sharp and Spansion CFI flash now have significant
bits in the upper byte of device ID codes, read via what Spansion calls
"autoselect" and Intel calls "read device identifier".  Currently these
values are truncated to the low 8 bits in the mtd data structures, as
all CFI read query info has previously been read one byte at a time.
Add a new method for reading 16-bit info, currently just manufacturer
and device codes; datasheets hint at future uses for upper bytes in
other fields.

Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:27:24 +01:00
Maciej W. Rozycki 3eb8ceac48 [MTD] devices/ms02-nv: phys/virt address fixups
Merge from linux-mips:
Use physical addresses at the interface level, letting drivers remap
them as appropriate.

Signed-off-by: Maciej W. Rozycki <macro@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 19:25:47 +01:00
Sean Young bc4117f876 [MTD] RFD_FTL: Use lanana assigned major device number
A major block device number is now assigned by lanana.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-29 16:52:26 +01:00
Linus Torvalds 3b762d321a Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel
Manual fixups to ARM ixp4xxx by hand.
2005-11-19 15:24:42 -08:00
Russell King 0c2e4b4ff3 [ARM] Drivers should not make use of architecture private __ioremap
__ioremap is an architecture private interface and must not be used
by drivers when the architecture independent interface will do just
as well.  Switch the ipaq drivers to use the correct interface.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-17 16:46:41 +00:00
Russell King 7d78c887a9 [DRIVER MODEL] Fix merge clashes with ARM ixp2000 / ixp4xx platforms
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-17 15:47:30 +00:00
Sean Young ef63d0049a [MTD] maps: Replace dependency on non existing config option
CONFIG_ELAN doesn't exist any more; CONFIG_X86_ELAN is too specific
so make ts-5500 memory map dependant on CONFIG_X86.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-13 19:30:44 +01:00
Linus Torvalds 5643f000c1 Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel 2005-11-11 09:24:26 -08:00
Russell King 3ae5eaec1d [DRIVER MODEL] Convert platform drivers to use struct platform_driver
This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-09 22:32:44 +00:00
Olaf Hering 733482e445 [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
This patch removes almost all inclusions of linux/version.h.  The 3
#defines are unused in most of the touched files.

A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.

There are also lots of #ifdef for long obsolete kernels, this was not
touched.  In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.

quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:57 -08:00
Andrew Morton 015953d706 [PATCH] mtd: onenand_base needs sched.h
drivers/mtd/onenand/onenand_base.c: In function `onenand_wait':
drivers/mtd/onenand/onenand_base.c:293: error: `jiffies' undeclared (first use in this function)
drivers/mtd/onenand/onenand_base.c:293: error: (Each undeclared identifier is reported only once
drivers/mtd/onenand/onenand_base.c:293: error: for each function it appears in.)
drivers/mtd/onenand/onenand_base.c:293: error: implicit declaration of function `msecs_to_jiffies'
drivers/mtd/onenand/onenand_base.c:294: error: implicit declaration of function `time_before'
drivers/mtd/onenand/onenand_base.c:301: error: implicit declaration of function `cond_resched'
drivers/mtd/onenand/onenand_base.c: In function `onenand_get_device':
drivers/mtd/onenand/onenand_base.c:522: error: implicit declaration of function `set_current_state'
drivers/mtd/onenand/onenand_base.c:522: error: `TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
drivers/mtd/onenand/onenand_base.c:525: error: implicit declaration of function `schedule'
drivers/mtd/onenand/onenand_base.c: In function `onenand_release_device':
drivers/mtd/onenand/onenand_base.c:545: error: `TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
drivers/mtd/onenand/onenand_base.c:545: error: `TASK_INTERRUPTIBLE' undeclared (first use in this function)

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:50 -08:00
Andrew Morton b80b5832ff [PATCH] mtd: rfd_ftl build fix
drivers/mtd/rfd_ftl.c: In function `find_free_block':
drivers/mtd/rfd_ftl.c:528: error: `jiffies' undeclared (first use in this function)
drivers/mtd/rfd_ftl.c:528: error: (Each undeclared identifier is reported only once
drivers/mtd/rfd_ftl.c:528: error: for each function it appears in.)

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:50 -08:00
Linus Torvalds b3ce1debe2 Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6
Some manual fixups for clashing kfree() cleanups etc.
2005-11-07 10:24:08 -08:00
Greg Ungerer 8766af935f [PATCH] check for failed kmalloc in inftlmount.c
The INFTL mount code contains a kmalloc() followed by a memset() without
handling a possible memory allocation failure.

Signed-off-by: <panagiotis.issaris@mech.kuleuven.ac.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 08:00:46 -08:00
Jesper Juhl fa671646f6 [PATCH] kfree cleanup: drivers/mtd
This is the drivers/mtd part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/mtd/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:54:02 -08:00
Thomas Gleixner c2965f1129 [MTD] chips: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 15:25:34 +01:00
Thomas Gleixner d5c5e78af5 [MTD] OneNAND: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 15:11:28 +01:00
Thomas Gleixner 61b03bd7c3 [MTD] NAND: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 15:10:37 +01:00
Thomas Gleixner e5580fbe8a [MTD] devices: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 15:06:59 +01:00
Thomas Gleixner 69f34c98c1 [MTD] maps: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 15:01:58 +01:00
Thomas Gleixner 1f948b43f7 [MTD] chips: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 14:45:15 +01:00
Thomas Gleixner 97894cda57 [MTD] core: Clean up trailing white spaces
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 13:37:38 +01:00
Konstantin Baidarov b95f9609c7 [MTD] chips cfi_cmdset_0002: Prevent timeout race
We've noticed that sometimes "MTD do_write_buffer(): software timeout"
message was printed out when writing to a Fujitsu NOR flash.
It turned out that this was because of a race in the timeout handling
do_write_buffer(). A small timeout of (HZ / 1000) + 1 is used there, and
sometimes if the timer interrupt handling takes more than one or even two
jiffies (which is 1-2 ms with HZ == 1000) and that interrupt happens just
after chip_ready() call, the driver bails out from a ready polling loop
despite the chip has actually become ready while all those interrupts were
handled. To deal with this issue, extra check for chip ready is neccessary on
timeout expiration (and the checks should better be reordered).
As do_write_oneword() uses the same approach, it needs to also be changed.

Signed-off-by: Konstantin Baidarov <kbaidarov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 10:47:08 +01:00
Marian Balakowicz be30c10fd8 [MTD] maps: Add support for the "TQM834x" Boards
The following patch adds support for the TQ Systems  TQM834x  Boards.
Verified on TQM8349L.

This is a resubmit after integrating the suggested changes.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 10:46:22 +01:00
Lennert Buytenhek ea17629f3e [MTD] maps ixp2000: fix compile warnings in ixp2000 map driver
Fix two compile warnings that occur because of treating two
'unsigned long's as 'void *'s.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 10:44:15 +01:00
Thomas Gleixner 3096617434 [MTD] NAND Kconfig: Simplify dependencies
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 02:49:43 +01:00
Thomas Gleixner 3e17404918 [MTD] maps/plat-ram: Avoid gcc 4.0 warning
The assignement of a "const char *" to a "char *" variable
is emitting a warning with gcc 4.0. We cannot change
mtd->name to "const char *" as we have dynamic assignements
of the name. So casting is the correct solution here

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 02:28:05 +01:00
Todd Poynor 868801e561 [MTD] NAND: nand_write_ecc memory and OOB corruption
Nathan Roberts noticed the nand_write_ecc index into oobbuf goes out of
bounds when crossing an erase block boundary, causing incorrect OOB data
to be written and corrupting memory.  Reset the index to zero after
re-preparing oobbuf for a new erase block.

Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 02:24:31 +01:00
Vitaly Wool 49196f3332 [MTD] NAND nand_base: Fix shift for bad block check (16bit devices only)
In case of an odd offset, the result was shifted by 1 instead of 8

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 02:15:21 +01:00
Thomas Gleixner 46d0d0fb61 [MTD] OneNAND/Kconfig: Fix dependencies
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 01:14:05 +01:00
Thomas Gleixner f0250fd7c3 Revert "[PATCH] OneNAND: Add simulator"
This reverts 405c829f98 commit.
2005-11-07 01:11:04 +01:00
Sean Young 01ac742db3 [MTD] maps/Kconfig: Simplify and update dependencies
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 00:40:10 +01:00
Sean Young 28f462308e [MTD] maps/ts5500: Fix partition support. Code cleanup
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 00:32:01 +01:00
Thomas Gleixner 15fdc52f35 [MTD] Tidy up Tims include cleanup
While we are at it, reorder the includes and
remove the silly /* TASK */ comment

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 00:14:42 +01:00
David Vrabel 9090ed0b82 [MTD] maps/ixp4xx: kill some warnings
- Use map.virt instead of map.map_priv_1 since it has the correct type.
- Use readw/writew instead of dereferencing an ioremap'd cookie.
- Remove an unused variable.

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07 00:08:05 +01:00
Richard Purdie 87c146dc1a [MTD] NAND sharpsl.c: Add support for akita and borzoi models
The Sharp Zaurus akita and borzoi models are large page flash devices.
This patch adds support for them to the sharpsl MTD NAND driver but
keeps the oob layout and bad block positions compatible with the Sharp
Zaurus 2.4 kernel and ROM bootloader.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:34:39 +01:00
Nicolas Pitre 6f6ed056d2 [MTD] chips/cfi_cmdset_0001: fix for P30 cfi parsing
Change to the extended cfi table parsing for Intel NOR flash that uses
the info in the extended table to 'walk' the table rather than using
hard coding for various primary extended query table version numbers.

From: Jared Hulbert <jaredeh@gmail.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:19:17 +01:00
Ben Dooks cfd320fbfc [MTD] NAND s3c2410.c: Fix timing calculation bugs
Spotted by basprog@mail.ru

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:15:54 +01:00
Ben Dooks d574504114 [MTD] NAND s3c2410.c: Fix missing dev parameter to dev_err
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:10:43 +01:00
Ben Dooks df2e162927 [MTD] maps/plat-ram.c: Initialize owner in device_driver struct
Added .owner initialisation to allow the
tracking of the device_driver owners when
built as a module

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:09:49 +01:00
Ben Dooks e0030b60ce [MTD] maps/bast-flash.c: Initialize owner in device_driver struct
Added owner to device driver field for tracking
when loaded as a module.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:08:38 +01:00
Ben Dooks 61a7275491 [MTD] NAND: s3c2410.c Initialize owner in device_driver struct
Added owner fields to the device_driver for tracking
ownership when built as a module

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:07:28 +01:00
Artem B. Bityutskiy 5cea5dadfe [MTD] mtdpart.c: Allow eraseblock size != power of 2
Don't assume eraseblock size is power of 2.
Dataflash can have aligned eraseblock size.

From: Peter Menzebach <pm-mtd@mw-itcon.de>
Acked-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 23:04:14 +01:00
Kyungmin Park 83a368380e [MTD] OneNAND: Enhanced support for DDP (Dual Densitiy Packages)
Add density mask for better support of DDP chips.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 22:59:48 +01:00
Kyungmin Park a41371eb6d [MTD] OneNAND: Power Management (PM) support
Add suspend/resume

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 22:42:28 +01:00
Kyungmin Park 87590e26ff [MTD] OneNAND: Add missing files
Simple bad block table source and header files

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 22:39:23 +01:00
Ben Dooks 0255fc1b08 [MTD] NAND: s3c2410 use dev_err() to report errors instead of printk()
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 22:37:35 +01:00
Pete Popov ef6f0d1ffc [MTD] NAND: Alchemy board driver cleanup
- cleaned up the partitions and include files
- added more flexible CS and address detection and setup

Regression tested on db1200 and db1550.

Signed-off-by: Pete Popov <ppopov@pacbell.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 22:29:02 +01:00
Joern Engel b523b3bac3 [MTD] maps: Add support for MTX-1 Flash device
Add support for "4G Systems MTX-1 Flash device", better known as meshcube.

From: Bruno Randolf <bruno.randolf@4g-systems.biz>
Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:58:57 +01:00
Vitaly Wool 962034f439 [MTD] NAND: Add suspend/resume functionality
The changes introduced allow to suspend/resume NAND flash.
A new state (FL_PM_SUSPENDED) is introduced, as well as
routines for mtd->suspend and mtd->resume to put the flash in
suspended state from software pov.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:43:45 +01:00
Todd Poynor 9c517e6c80 [MTD] maps: Add mapping driver for PQ2FADS boards.
From: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:40:38 +01:00
Kyungmin Park 1b01d9798d OneNAND: Remove OMAP platform driver
Now we can use the generic platform driver

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:35:12 +01:00
Kyungmin Park 68ee4b1c50 [MTD] OneNAND: Add generic platform driver
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:33:11 +01:00
David Vrabel e4c212efbd [MTD] maps/ixp4xx: remove platform specific bits
- Intel chip driver has a reboot notifier so no need to reset the chip here.
- Don't play with chip selects (platform code should do this if necessary).

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:32:16 +01:00
Kyungmin Park 1501787675 [MTD] OneNAND: Remove experimental Kconfig dependency
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:25:42 +01:00
Kyungmin Park d36d63d404 [PATCH] OneNAND: Fix bug in write verify
- Remove unused block, page parameters
- Add constant instead of runtime value

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:24:51 +01:00
Kyungmin Park 405c829f98 [PATCH] OneNAND: Add simulator
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:23:10 +01:00
Kyungmin Park fcc31470c4 [PATCH] OneNAND: Update OMAP OneNAND mapping using device driver model
- Update OMAP OneNAND mapping file using device driver model
- Remove board specific macro and values.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:22:01 +01:00
Kyungmin Park cdc001305d [PATCH] OneNAND: Simple Bad Block handling support
Based on NAND memory bad block table code

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:20:53 +01:00
Kyungmin Park 52b0eea73d [PATCH] OneNAND: Sync. Burst Read support
Add OneNAND Sync. Burst Read support
Tested with OMAP platform

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:19:37 +01:00
Kyungmin Park cd5f6346bc [MTD] Add initial support for OneNAND flash chips
OneNAND is a new flash technology from Samsung with integrated SRAM
buffers and logic interface.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 21:17:24 +01:00
Thomas Gleixner d409466154 [MTD] NAND: Use correct mask for OOB size calculation
The bit mask used for oob size calculation was using 2 bits instead
of one. Fortunately the next bit has been 0 all the time.

Thanks to Nathan H. for pointing this out

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:22:32 +01:00
Thomas Gleixner 2c92d75532 [MTD] Remove deprecated power management functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:15:30 +01:00
David Woodhouse e21f6c02f7 [MTD] Missing check on kmalloc return in INFTL mount.
Signed-off-by: Youssef Hmamouche <hyoussef@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:14:49 +01:00
Nicolas Pitre e102d54abf [MTD] writev support for cfi-cmdset-0001
While this might be useful for all supported flash types, it is mandatory
for proper JFFS2 support with Sibley flash.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:12:48 +01:00
Nicolas Pitre 638d983840 {MTD] add support for Intel's "Sibley" flash
This updates the Primary Vendor-Specific Extended Query parsing to
version 1.4 in order to get the information about the Configurable
Programming Mode regions implemented in the Sibley flash, as well as
selecting the appropriate write command code.

This flash does not behave like traditional NOR flash when writing data.
While mtdblock should just work, further changes are needed for JFFS2 use.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:12:17 +01:00
Nicolas Pitre 4843653cab [MTD] cleanups to cfi_cmdset_0001
This includes improved error handling/reporting plus some other
message cleanups.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:10:19 +01:00
Sean Young e27a9960af [MTD] Add Resident Flash Disk (RFD) support
This type of flash translation layer (FTL) is used by the Embedded BIOS
by General Software. It is known as the Resident Flash Disk (RFD), see:

http://www.gensw.com/pages/prod/bios/rfd.htm

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06 20:08:54 +01:00
Thomas Gleixner 2fc2991175 Merge branch 'master' of /home/tglx/work/mtd/git/linux-2.6.git/ 2005-11-06 15:36:37 +01:00
Linus Torvalds 4fd5f8267d Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel
Manual #include fixups for clashes - there may be some unnecessary
2005-10-31 07:32:56 -08:00
Tim Schmielau 4e57b68178 [PATCH] fix missing includes
I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.

In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch.  This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other.  So if any
hunk rejects or gets in the way of other patches, just drop it.  My scripts
will pick it up again in the next round.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:32 -08:00
Russell King d052d1beff Create platform_device.h to contain all the platform device details.
Convert everyone who uses platform_bus_type to include
linux/platform_device.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-29 19:07:23 +01:00
Russell King 13bfb34c10 [ARM] Fix Assabet reboot with SA1100 MTD map driver
Unfortunately, some devices forgot to reset the flash on reboot.
Arrange for the map driver to suspend & resume the flash to
ensure that it is in a sane state before rebooting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-29 16:14:08 +01:00
Russell King 14e66f767f [ARM] Allow MTD device name to be passed via platform data
Allow SA1100 devices to pass the name of the flash device to the
SA1100 map driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-29 16:08:31 +01:00
Russell King 822e5e7269 [ARM] Fix MTD device/partition destruction
We should not delete MTD partitions when we registered a MTD
device.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-29 16:03:24 +01:00
Russell King 0d2ef7d73e [ARM] Add support for init/exit methods in sa1100 MTD map driver
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-29 15:57:20 +01:00