Commit graph

400 commits

Author SHA1 Message Date
Karl Beldan
ef89a88013 [MTD] [NAND] nand_base.c: reset chip first
Some chips require a RESET after power-up (e.g. Micron MT29FxGxxxxx).
The first command sent is NAND_CMD_READID.
Issue a NAND_CMD_RESET in nand_scan_ident before reading the device id.
Tested with an MT29F4G08AAC.

Signed-off-by: Karl Beldan <karl.beldan@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-16 08:18:12 -07:00
Sascha Hauer
34f6e15786 [MTD] [NAND] Freescale i.MX2 NAND driver
This patch adds support for the integrated NAND flash controller of the
i.MX2 and i.MX3 family. It is tested on MX27 but should work on MX3
aswell.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-02 22:35:36 +01:00
Enrico Scholz
2675e9447b [MTD] [NAND] pxa3xx_nand: added warning which tells id of detected NAND
Minor patch to help debugging of NAND detection.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 21:38:44 +01:00
Enrico Scholz
c8c17c888d [MTD] [NAND] pxa3xx_nand: moved some helper variables out from platform data
This patch moves some attributes out from the platform data into the
dynamically created nand device.   This results into a cleaner interface
and allows to use constant pxa3xx_nand_flash definitions.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 21:38:34 +01:00
Enrico Scholz
7dad482ed0 [MTD] [NAND] pxa3xx_nand: added some 'const' annotations to the exported API
This patch marks some attributes as 'const' which are set only once and
never be modified by the driver.  There are some changes in parameter
list and variable declarations too which mark them as 'const'.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 21:37:51 +01:00
Enrico Scholz
80ebf20f34 [MTD] [NAND] pxa3xx_nand: allow to disable builtin flash-type table
This patch adds a MTD_NAND_PXA3xx_BUILTIN configuration variables which
allows to disable usage of builtin flash-type table.  Not enabling this
option saves some space in the generated driver.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 21:37:39 +01:00
Enrico Scholz
c8ac3f818e [MTD] [NAND] pxa3xx_nand: allow to define flash types in the platform data
This patch adds 'flash' and 'num_flash' attributes to the platform data.
There was added code in the driver to iterate across these attributes in the
detect-flash routine.  This is done similarly to the existing method
which uses a 'builtin_flash_types' field.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 21:31:34 +01:00
Enrico Scholz
43035338ad [MTD] [NAND] pxa3xx_nand: moved nand definitions into shared platform header
This patch moves the exported datastructures from the pxa3xx_nand.c driver
into the <mach/pxa3xx_nand.h> header. This is a plain movement without
any modification of the attributes.

This is the first one of a set of patches which:

 * allows to specify used NAND flash in the platform code and allows to turn
   off the old way to specify NAND characteristics in the driver.  This way did
   not worked well as these characteristics depend on the platform and can not be
   derived from NAND id alone.

   E.g.  some NAND chips share the same ID (e.g.  K9K8G08U0A and K9NBG08U5A) but
   have different timings (which are written in the common driver currently and
   must be modified there).

 * adds 'const' annotations at various places

Further patches will be sent to the mtd-list.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 21:27:32 +01:00
Semun Lee
4262bd2981 [MTD] [NAND] pxa3xx_nand_flash: Add definition of STM2GbX16 NAND flashes
Signed-off-by: Semun Lee <semun.lee@samsung.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-09-01 11:49:27 +01:00
David Woodhouse
9d7548d4ca Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-09-01 11:32:13 +01:00
Singh, Vimal
d68156cfad [MTD] [NAND] nand_ecc.c: adding support for 512 byte ecc
Support 512 byte ECC calculation

[FM: updated two comments]

Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-25 12:23:36 +01:00
Huang Weiyi
dffc8d6654 [MTD] [NAND] au1550nd.c: remove unused #include <version.h>
It doesn't use LINUX_VERSION_CODE nor KERNEL_VERSION.

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-25 12:20:53 +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
Alexey Korolev
17c1d2be28 [MTD] [NAND] Fix missing kernel-doc
[Reported by Randy Dunlap]

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-20 22:35:40 +01:00
frans
1077be58ad [MTD] [NAND] nand_ecc.c: fix big endian, strengthen test, add printk
This patch for nand_ecc.c fixes three issues

- fix code so it also works on big endian architectures
- added a printk in case of an uncorrectable ecc error
- strengthen the test for correctable errors (decreasing the chance
  that multiple bit faults by accident will be seen as correctable)

Note: the big endian code is only tested in a testbed (running on big endian
hardware) as I cannot rebuild and test a big endian kernel at the moment.
However the only thing that can go wrong is if <asm/byteorder.h> does not
give __BIG_ENDIAN in that case. In my eyes very unlikely.

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-20 20:58:56 +01:00
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
David Woodhouse
ccbcd6cba5 [MTD] [NAND] Minor cleanup of nand_ecc.c
Make the standalone stuff a little cleaner, fix some checkpatch warnings.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-16 11:01:31 +01:00
frans
e6cf5df183 [MTD] [NAND] nand_ecc.c: rewrite for improved performance
This patch improves the performance of the ecc generation code by a 
factor of 18 on an INTEL D920 CPU, a factor of 7 on MIPS and a factor of 5 
on ARM (NSLU2)

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-16 10:55:33 +01:00
David Woodhouse
742c52533b Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	include/asm-arm/arch-omap/onenand.h
2008-08-12 11:28:00 +01:00
Adrian Hunter
bb0eb217c9 [MTD] Define and use MTD_FAIL_ADDR_UNKNOWN instead of 0xffffffff
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-12 11:02:15 +01:00
Huang Weiyi
d483492cb5 [MTD] [NAND] drivers/mtd/nand/nandsim.c: remove duplicated #include
Removed duplicated include <asm/div64.h> in
drivers/mtd/nand/nandsim.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-11 17:31:32 +01:00
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
David Woodhouse
16e00b609a [MTD] Remove references to TI 'toto' platform.
This was a reference board for which support never got merged upstream.
Kill it off, at rmk's suggestion.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-04 11:30:07 +01:00
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
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
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
Anton Vorontsov
55679df30d [MTD] [NAND] fsl_elbc_nand: fix section mismatch with CONFIG_MTD_OF_PARTS=y
With CONFIG_MTD_OF_PARTS=y I'm getting this new section mismatch in reference
from the function fsl_elbc_chip_probe() to the function
.devinit.text:of_mtd_parse_partitions()

This patch fixes the mismatch by providing __devinit annotation to the
fsl_elbc_chip_probe() function.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-25 09:43:54 -04:00
Russell King
044e5f45e4 Merge branch 'pxa' into devel
Conflicts:

	arch/arm/configs/em_x270_defconfig
	arch/arm/configs/xm_x270_defconfig
2008-07-13 12:05:49 +01:00
Russell King
a9da4f7ed6 Merge branches 'pxa-ian' and 'pxa-xm270' into pxa
Conflicts:

	MAINTAINERS
2008-07-12 21:42:04 +01:00
Milton Miller
f63af11ddb [MTD] [NAND] remove __PPC__ hardcoded address from DiskOnChip drivers
Such a hardcoded address can cause a checkstop or machine check if
the driver is in the kernel but the address is not acknowledged.

Both drivers allow an address to be specified as either a module
parameter or config option.   Any future powerpc board should either
use one of these methods or find the address in the device tree.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-11 18:21:54 +01:00
Anton Vorontsov
0acf944c68 [MTD] [NAND] fsl_elbc_nand: ecclayout cleanups
This patch deletes oobavail assignments, they're calculated by the nand
core code in nand_scan_tail, plus current oobavail values are wrong for
the LP NANDs.

Also remove mtd->ecclayout and mtd->oobavail assignments, mtd core
handles this all by itself.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-11 18:17:51 +01:00
Anton Vorontsov
ec6e0ea3bd [MTD] [NAND] fsl_elbc_nand: implement support for flash-based BBT
This patch implements support for flash-based BBT for chips working
through ELBC NAND controller, so that NAND core will not have to re-scan
for bad blocks on every boot.

Because ELBC controller may provide HW-generated ECCs we should adjust
bbt pattern and bbt version positions in the OOB free area.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-11 18:16:16 +01:00