Commit Graph

1176 Commits

Author SHA1 Message Date
Linus Torvalds 7cc4e87f91 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits)
  [ARM] 5300/1: fixup spitz reset during boot
  [ARM] 5295/1: make ZONE_DMA optional
  [ARM] 5239/1: Palm Zire 72 power management support
  [ARM] 5298/1: Drop desc_handle_irq()
  [ARM] 5297/1: [KS8695] Fix two compile-time warnings
  [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores.
  [ARM] pxa: allow multi-machine PCMCIA builds
  [ARM] pxa: add preliminary CPUFREQ support for PXA3xx
  [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h
  [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c
  [ARM] pxa/zylonite: add support for USB OHCI
  [ARM] ohci-pxa27x: use ioremap() and offset for register access
  [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()
  [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource
  [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver
  [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers
  [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c
  [ARM] pxa: simplify DMA register definitions
  [ARM] pxa: make additional DCSR bits valid for PXA3xx
  [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c
  ...

Fixed up conflicts in
	arch/arm/mach-versatile/core.c
	sound/soc/pxa/pxa2xx-ac97.c
	sound/soc/pxa/pxa2xx-i2s.c
manually.
2008-10-11 10:09:45 -07:00
Russell King 3f30a09a61 Merge branch 'pxa-all' into devel
Conflicts:

	arch/arm/mach-pxa/Kconfig
	arch/arm/mach-pxa/corgi.c
	arch/arm/mach-pxa/include/mach/hardware.h
	arch/arm/mach-pxa/spitz.c
2008-10-09 21:33:02 +01:00
David Woodhouse fdc53971bc Support 'discard sectors' operation.
We can benefit from knowing that the file system no longer cares about
the contents of certain sectors, by throwing them away immediately and
then never having to garbage collect them, and using the extra free
space to make our operations more efficient. Do so.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09 08:56:01 +02:00
David Woodhouse eae9acd13a Support 'discard sectors' operation in translation layer support core
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09 08:56:01 +02:00
Russell King 35437b6192 Merge branches 'metronomefb', 'pxa-cm2xx', 'pxa-gumstix', 'pxa-misc', 'pxa-mitac', 'pxa-mp900', 'pxa-zylonite' and 'pxa-zaurus' into pxa-machines
Conflicts:

	arch/arm/mach-pxa/poodle.c
2008-10-07 19:06:22 +01:00
Mike Rapoport a7f3f0309b [ARM] 5282/1: pxa: add CM-X255 support
Signed-off-by: Russ Dill <russ.dill@gmail.com>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-07 12:05:07 +01:00
Andrew Victor 3d73e89328 [ARM] 5265/3: [AT91] Add copyright info
Add copyright information for some of the AT91 header files.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-21 23:01:18 +01:00
Dmitry Baryshkov 076c7f4c6c [MTD] [NAND] tmio_nand: fix base address programming
Fix offset of second word used for programming base address of memory
window. Also program tmio with offset of the FCR, not with physical
memory location.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Ian Molton <spyro@f2s.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-05 15:34:35 +01:00
Zev Weiss b67c5f87c1 [MTD] mtdchar.c: Fix regression in MEMGETREGIONINFO ioctl()
The MEMGETREGIONINFO ioctl() in mtdchar.c was clobbering user memory by
overwriting more than intended, due the size of struct mtd_erase_region_info
changing in commit 0ecbc81adf ('Support
for auto locking flash on power up').

Fix avoids this by copying struct members one by one with put_user(), as there
is no longer a convenient struct to use the size of as the length argument to
copy_to_user().

Signed-off-by: Zev Weiss <zevweiss@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-02 09:29:05 +01:00
Adrian Bunk 7a8fc9b248 removed unused #include <linux/version.h>'s
This patch lets the files using linux/version.h match the files that
#include it.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-23 12:14:12 -07:00
Linus Torvalds 9c0d2a20fe Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (38 commits)
  [ARM] 5191/1: ARM: remove CVS keywords
  [ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified
  [ARM] pxafb: add flag to specify output format on LDD pins when base is RGBT16
  [ARM] pxafb: fix the incorrect configuration of GPIO77 as ACBIAS for TFT LCD
  [ARM] 5198/1: PalmTX: PCMCIA fixes
  [ARM] Fix a pile of broken watchdog drivers
  [ARM] update mach-types
  [ARM] 5196/1: fix inline asm constraints for preload
  [ARM] 5194/1: update .gitignore
  [ARM] add proc-macros.S include to proc-arm940 and proc-arm946
  [ARM] 5192/1: ARM TLB: add v7wbi_{possible,always}_flags to {possible,always}_tlb_flags
  [ARM] 5193/1: Wire up missing syscalls
  [ARM] traps: don't call undef hook functions with spinlock held
  [ARM] 5183/2: Provide Poodle LoCoMo GPIO names
  [ARM] dma-mapping: provide sync_range APIs
  [ARM] dma-mapping: improve type-safeness of DMA translations
  [ARM] Kirkwood: instantiate the orion_spi driver in the platform code
  [ARM] prevent crashing when too much RAM installed
  [ARM] Kirkwood: Instantiate mv_xor driver
  [ARM] Orion: Instantiate mv_xor driver for 5182
  ...
2008-08-16 16:48:45 -07:00
Samuel Ortiz 1c2c30acc5 mfd: have TMIO drivers and subdevices depend on ARM
The TMIO chips are only found (and thus tested) on ARM machines.
Moreover, we don't want the TMIO cells to be built if one of the TMIO
driver is not selected (which indirectly make the TMIO cells drivers
depend on ARM as well).

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 23:30:34 +02:00
Ian Molton ec43b8161b mfd: driver for the TMIO NAND controller
This patch adds support for the NAND controller commonly found in
TMIO based MFDs.

Signed-off-by: Ian Molton <spyro@f2s.com>
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 23:30:09 +02:00
Lennert Buytenhek 6f088f1d21 [ARM] Move include/asm-arm/plat-orion to arch/arm/plat-orion/include/plat
This patch performs the equivalent include directory shuffle for
plat-orion, and fixes up all users.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
2008-08-09 13:44:58 +02:00
Russell King a09e64fbc0 [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:55:48 +01:00
Russell King 4fb8af10d0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes 2008-08-07 09:55:03 +01:00
Russell King be50972935 [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:40:08 +01:00
Linus Torvalds 7e31aa11fc Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5182/1: pxa: Fix pcm990 compilation
  [ARM] Fix explicit asm(-arm)?/arch-foo references
  [ARM] move include/asm-arm to arch/arm/include/asm
  [ARM] Remove explicit dependency for misc.o from compressed/Makefile
  [ARM] initrd: claim initrd memory exclusively
  [ARM] pxa: add support for L2 outer cache on XScale3 (attempt 2)
  [ARM] 5180/1: at91: Fix at91_nand -> atmel_nand rename fallout
  [ARM] add Sascha Hauer as Freescale i.MX Maintainer
  [ARM] i.MX: add missing clock functions exports
  [ARM] i.MX: remove set_imx_fb_info() export
  [ARM] mx1ads: make mmc platform data available for modules
  [ARM] mx2: add missing Kconfig dependency
2008-08-03 10:39:02 -07:00
Russell King bccf650270 [ARM] Fix explicit asm(-arm)?/arch-foo references
No file should be explicitly referencing its own platform headers
by specifying an absolute include path.  Fix these paths to use
standard <asm/arch/...> includes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-02 22:35:16 +01:00
David Woodhouse f1136d022a [MTD] Fix !CONFIG_BLOCK compile for mtdsuper.c
As reported by Adrian Bunk, commit d5686b444f
(switch mtd and dm-table to lookup_bdev()) causes the following compile
error with CONFIG_BLOCK=n:

  CC      drivers/mtd/mtdsuper.o
drivers/mtd/mtdsuper.c: In function `get_sb_mtd':
drivers/mtd/mtdsuper.c:184: error: implicit declaration of function 'lookup_bdev'
drivers/mtd/mtdsuper.c:184: warning: assignment makes pointer from integer without a cast
drivers/mtd/mtdsuper.c:197: error: implicit declaration of function 'bdput'
make[3]: *** [drivers/mtd/mtdsuper.o] Error 1

Fix it by putting the block device lookup inside #ifdef CONFIG_BLOCK

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-02 07:52:39 +01:00
Linus Torvalds 623fa579e6 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
  [MTD] [NAND] drivers/mtd/nand/nandsim.c: fix printk warnings
  [MTD] [NAND] Blackfin NFC Driver: Cleanup the error exit path of bf5xx_nand_probe function
  [MTD] [NAND] Blackfin NFC Driver: use standard dev_err() rather than printk()
  [MTD] [NAND] Blackfin NFC Driver: enable Blackfin nand HWECC support by default
  [MTD] [NAND] Blackfin NFC Driver: add proper devinit/devexit markings to probe/remove functions
  [MTD] [NAND] Blackfin NFC Driver: add support for the ECC layout the Blackfin bootrom uses
  [MTD] [NAND] Blackfin NFC Driver: fix bug - hw ecc calc by making sure we extract 11 bits from each register instead of 10
  [MTD] [NAND] Blackfin NFC Driver: fix bug - do not clobber the status from the first 256 bytes if operating on 512 pages
  [MTD] [NAND] diskonchip.c fix sparse endian warnings
  [MTD] [NAND] drivers/mtd/nand/nandsim.c needs div64.h
  [JFFS2] Fix allocation of summary buffer
  Fix rename of at91_nand -> atmel_nand
  [MTD] [NOR] drivers/mtd/chips/jedec_probe.c: fix Am29DL800BB device ID
  [MTD] MTD_DEBUG always does compile-time typechecks
  [MTD] DataFlash: bugfix, binary page sizes now handled
  [MTD] [NAND] fsl_elbc_nand.c: fix printk warning
  [MTD] [NAND] nandsim: support random page read command
  [MTD] [NAND] fix subpage read for small page NAND
2008-08-01 11:29:54 -07:00
Al Viro d5686b444f [PATCH] switch mtd and dm-table to lookup_bdev()
No need to open-code it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-08-01 11:25:31 -04:00
Andrew Morton e4c094a595 [MTD] [NAND] drivers/mtd/nand/nandsim.c: fix printk warnings
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:44:42 +01:00
Bryan Wu 4f0ca70e52 [MTD] [NAND] Blackfin NFC Driver: Cleanup the error exit path of bf5xx_nand_probe function
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:44:22 +01:00
Mike Frysinger 0ee002b041 [MTD] [NAND] Blackfin NFC Driver: use standard dev_err() rather than printk()
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:43:53 +01:00
Mike Frysinger a0dd20184b [MTD] [NAND] Blackfin NFC Driver: enable Blackfin nand HWECC support by default
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:43:33 +01:00
Mike Frysinger 2445af3853 [MTD] [NAND] Blackfin NFC Driver: add proper devinit/devexit markings to probe/remove functions
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:43:14 +01:00
Mike Frysinger fcb90ba7e9 [MTD] [NAND] Blackfin NFC Driver: add support for the ECC layout the Blackfin bootrom uses
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:42:55 +01:00
Mike Frysinger cf840392e8 [MTD] [NAND] Blackfin NFC Driver: fix bug - hw ecc calc by making sure we extract 11 bits from each register instead of 10
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:40:42 +01:00
Mike Frysinger e274f025e2 [MTD] [NAND] Blackfin NFC Driver: fix bug - do not clobber the status from the first 256 bytes if operating on 512 pages
Singed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:40:21 +01:00
Harvey Harrison 963724462a [MTD] [NAND] diskonchip.c fix sparse endian warnings
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:34:16 +01:00
Andrew Morton fc1f397b2c [MTD] [NAND] drivers/mtd/nand/nandsim.c needs div64.h
drivers/mtd/nand/nandsim.c: In function 'divide':
drivers/mtd/nand/nandsim.c:462: error: implicit declaration of function 'do_div'

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-01 15:33:32 +01:00
Jerry Hicks 4a22442fae [MTD] [NOR] drivers/mtd/chips/jedec_probe.c: fix Am29DL800BB device ID
The device id for Am29DL800BB in jedec_probe.c is wrong.

Reference: http://www.spansion.com/datasheets/21519c4.pdf

I discovered this while working with u-boot.

The u-boot folks mentioned Linux as an upstream reference, thought I'd
post a heads-up here too.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-31 08:34:46 +01:00
akpm@linux-foundation.org 771999b65f [MTD] DataFlash: bugfix, binary page sizes now handled
The wrong version of the "teach dataflash about binary density" patch
just got merged (v2 not v3) ... this restores the missing updates:

  * Fix the cmdlinepart *regression* that caused testing failures (!!)
    by restoring the original part labels in relevant cases.

  * Don't reference things that don't exist (!)
	- An opcode that doesn't even exist for DataFlash
	- The part is "at45db642" not "at45db641"
	- ID zero in this JEDEC table

  * Make the JEDEC probe routine report and handle errors better:
	- If the SPI calls fail, return the error codes.
	- Don't depend on ordering of table entries.
	- Unrecognized ids are different from parts that have no ID.
          We won't actually know how to handle them correctly; display
	  the ID and ignore the chip.

  * Move the original block comment about the "legacy" chip ID scheme
    back next to the code to which it applies ... not next to the new
    JEDEC query code, which uses an entirely different strategy.

  * Don't print a guessed erasesize; /proc/mtd has the real value.

And add a few more comments.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Bryan Wu <cooloney@kernel.org>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-30 14:20:32 +01:00
akpm@linux-foundation.org 650da9d0b7 [MTD] [NAND] fsl_elbc_nand.c: fix printk warning
drivers/mtd/nand/fsl_elbc_nand.c:890: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'resource_size_t'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-30 12:02:34 +01:00
Artem Bityutskiy 74216be41a [MTD] [NAND] nandsim: support random page read command
Commit 3d45955962 ("subpage read feature
as a way to improve performance") broke nandsim because nandsim does not
support the "random page read" NAND command. This patch adds
corresponding support.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-30 12:01:03 +01:00
Linus Torvalds 9ee08c2df4 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (57 commits)
  [MTD] [NAND] subpage read feature as a way to increase performance. 
  CPUFREQ: S3C24XX NAND driver frequency scaling support.
  [MTD][NAND] au1550nd: remove unused variable
  [MTD] jedec_probe: Fix SST 16-bit chip detection
  [MTD][MTDPART] Fix a division by zero bug
  [MTD][MTDPART] Cleanup and document the erase region handling
  [MTD][MTDPART] Handle most checkpatch findings
  [MTD][MTDPART] Seperate main loop from per-partition code in add_mtd_partition
  [MTD] physmap: resume already suspended chips on failure to suspend
  [MTD] physmap: Fix suspend/resume/shutdown bugs.
  [MTD] [NOR] Fix -ETIMEO errors in CFI driver
  [MTD] [NAND] fsl_elbc_nand: fix section mismatch with CONFIG_MTD_OF_PARTS=y
  [JFFS2] Use .unlocked_ioctl
  [MTD] Fix const assignment in the MTD command line partitioning driver
  [MTD] [NOR] gen_probe: No debug message when debugging is disabled
  [MTD] [NAND] remove __PPC__ hardcoded address from DiskOnChip drivers
  [MTD] [MAPS] Remove the bast-flash driver.
  [MTD] [NAND] fsl_elbc_nand: ecclayout cleanups
  [MTD] [NAND] fsl_elbc_nand: implement support for flash-based BBT
  [MTD] [NAND] fsl_elbc_nand: fix OOB workability for large page NAND chips
  ...
2008-07-26 20:30:56 -07:00
Linus Torvalds 996abf053e Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
* 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6: (22 commits)
  UBI: always start the background thread
  UBI: fix gcc warning
  UBI: remove pre-sqnum images support
  UBI: fix kernel-doc errors and warnings
  UBI: fix checkpatch.pl errors and warnings
  UBI: bugfix - do not torture PEB needlessly
  UBI: rework scrubbing messages
  UBI: implement multiple volumes rename
  UBI: fix and re-work debugging stuff
  UBI: amend commentaries
  UBI: fix error message
  UBI: improve mkvol request validation
  UBI: add ubi_sync() interface
  UBI: fix 64-bit calculations
  UBI: fix LEB locking
  UBI: fix memory leak on error path
  UBI: do not forget to free internal volumes
  UBI: fix memory leak
  UBI: avoid unnecessary division operations
  UBI: fix buffer padding
  ...
2008-07-25 11:02:17 -07:00
Alexey Korolev 3d45955962 [MTD] [NAND] subpage read feature as a way to increase performance.
This patch enables NAND subpage read functionality.
If upper layer drivers are requesting to read non page aligned data NAND
subpage-read functionality reads the only whose ECC regions which include
requested data when original code reads whole page.
This significantly improves performance in many cases.

Here are some digits :

UBI volume mount time
No subpage reads: 5.75 seconds
Subpage read patch: 2.42 seconds

Open/stat time for files on JFFS2 volume:
No subpage read  0m 5.36s
Subpage read     0m 2.88s

Signed-off-by Alexey Korolev <akorolev@infradead.org>
Acked-by: Artem Bityutskiy <dedekind@infradead.org>
Acked-by: Jörn Engel <joern@logfs.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 10:49:50 -04:00
David Woodhouse ff877ea80e Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6 2008-07-25 10:40:14 -04:00
Ben Dooks 30821fee4f CPUFREQ: S3C24XX NAND driver frequency scaling support.
Add support for CPU frequency scalling to the S3C24XX NAND driver.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 10:10:21 -04:00
Yoichi Yuasa ee39a0e61b [MTD][NAND] au1550nd: remove unused variable
Remove unused variable from au1550 NAND driver.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 10:03:35 -04:00
Atsushi Nemoto ca6f12c67e [MTD] jedec_probe: Fix SST 16-bit chip detection
The unlock_addr rework in kernel 2.6.25 breaks 16-bit SST chips.  SST
39LF160 and SST 39VF1601 are both 16-bit only chip (do not have BYTE#
pin) and new uaddr value is not correct for them.  Add
MTD_UADDR_0xAAAA_0x5555 for those chips.  Tested with SST 39VF1601
chip.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 10:02:47 -04:00
Atsushi Nemoto f636ffb420 [MTD][MTDPART] Fix a division by zero bug
When detecting a partition beyond the end of the device, skip most of
the initialisation, in particular those bits causing a division by zero.

Signed-off-by: Jörn Engel <joern@logfs.org>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 10:00:11 -04:00
Atsushi Nemoto 6910c13681 [MTD][MTDPART] Cleanup and document the erase region handling
Mostly simplifying the loops.  Now everything fits into 80 columns,
is easier to read and the finer details have extra comments.

Signed-off-by: Jörn Engel <joern@logfs.org>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:59:52 -04:00
Atsushi Nemoto b33a288739 [MTD][MTDPART] Handle most checkpatch findings
Remaining are 12 warnings about long lines and 1 about braces that
could be argued about.

Signed-off-by: Jörn Engel <joern@logfs.org>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:59:22 -04:00
Atsushi Nemoto 7788ba71a6 [MTD][MTDPART] Seperate main loop from per-partition code in add_mtd_partition
add_mtd_partition was a 150+ line monster consisting mostly of a single
loop.  Seperate the loop from most of the body.  Now it should be
obvious which variables are carried around from iteration to iteration.

Signed-off-by: Jörn Engel <joern@logfs.org>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:59:11 -04:00
Uwe Kleine-König 4b5e33a7bf [MTD] physmap: resume already suspended chips on failure to suspend
A nice side effect of this patch is that the return value of
physmap_flash_suspend in the error path is the value of the first failing
suspend callback and not the bitwise OR of all of them.

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:53:26 -04:00
Robert Jarzmik 7b24919115 [MTD] physmap: Fix suspend/resume/shutdown bugs.
Don't call suspend/resume functions if they have not been
defined.

Signed-off-by: Robert Jarzmik <rjarzmik@free.fr>
Acked-By: Jörn Engel <joern@logfs.org>
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:53:03 -04:00
Alexey Korolev 998453fbf2 [MTD] [NOR] Fix -ETIMEO errors in CFI driver
Existing CFI driver has problems with excessive writes during erase.
If CFI driver does many writes during one erase cycle we may face the
messages with -ETIMEO error on erase operation.  It may cause the
following data corruption and kernel panics.

The reason of the issue is related to specifics of suspend operation:
if we write to flash during erase, suspend operation will cost some time
to erase procedure (for P30 it could be significant). In current version of
cfi driver the problem of many suspends is partially workarounded by adding
some time reserv to any operation (8xerase_time) but if we have many writes
during one erase the problem appears.

This patch detects the suspend and resets timer if suspend occured. It
has been well verified on different chips. No problems were found.
Could you please include the patch as it is simple and fixes bad issue.

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:48:42 -04:00