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path: root/drivers/mtd/nand/s3c2410.c
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2008-11-29Merge branch 's3c-moves2' of git://aeryn.fluff.org.uk/bjdooks/linux into develRussell King1-2/+2
2008-11-27[ARM] remove memzero()Russell King1-2/+2
As suggested by Andrew Morton, remove memzero() - it's not supported on other architectures so use of it is a potential build breaking bug. Since the compiler optimizes memset(x,0,n) to __memzero() perfectly well, we don't miss out on the underlying benefits of memzero(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-30[ARM] S3C: Move nand headers to arch/arm/plat-s3c/include/platBen Dooks1-2/+2
Move nand headers to arch/arm/plat-s3c/include/plat ready to clean out the old include directories. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-25CPUFREQ: S3C24XX NAND driver frequency scaling support.Ben Dooks1-21/+122
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>
2008-06-04[MTD] [NAND] S3C2410: Remove changelog and tidy headerBen Dooks1-17/+3
The changelog on the driver is superflous given this is being kept under revision control. Remove the other cruft in the header and update the copyright and the supported device list. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-04[MTD] [NAND] S3C2410: Change printk() into dev_dbg()Ben Dooks1-1/+2
Fix a minor problem with what should have been debug output by changing printk() to dev_dbg() inside s3c2410_nand_update_chip(). Thanks to David Woodhouse for pointing this out. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-04MTD/JFFS2: remove CVS keywordsAdrian Bunk1-2/+0
Once upon a time, the MTD repository was using CVS. This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code. This also includes code that printed them to the user. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-23[MTD] [NAND] S3C2410 Allow ECC disable to be specified by the boardBen Dooks1-0/+3
Add support to disable ECC checking for a given chip when passed by the board via the platform data. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-23[MTD] [NAND] S3C2410 Allow ECC layout to be passed through platform dataBen Dooks1-0/+3
Add support for the ECC layout to be passed via the platform data specified by the board. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-23[MTD] [NAND] S3C2410 Allow unset ecc to be ignored for ecc correctionBen Dooks1-0/+8
If a block's ecc field is all 0xff, then ignore the ECC correction. This is for systems where some of the blocks, such as the initial cramfs are written without ECC and need to be loaded on start. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-23[MTD] [NAND] S3C2410 Large page NAND supportBen Dooks1-5/+33
This adds support for using large page NAND devices with the S3C24XX NAND controller. This also adds the file Documentation/arm/Samsung-S3C24XX/NAND.txt to describe the differences. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-23[MTD] [NAND] S3C2410 Fix previous nFCE suspend save patchBen Dooks1-10/+8
Commit 03680b1e00d146df718c8a4eac34438566b70c85 incorrectly was assuming S3C2410_NFCONF was being used to select the NAND chip. Fix this error by ising the sel_reg. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-04-22[MTD] [NAND] fix platform driver hotplug/coldplugKay Sievers1-0/+3
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable MTD NAND platform drivers, to re-enable auto loading. NOTE: at91_nand for some reason disallows modular builds. I'm assuming that's just an oversight that will be fixed. [dbrownell@users.sourceforge.net: minor fix] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-02-07Merge git://git.infradead.org/mtd-2.6Linus Torvalds1-15/+33
* git://git.infradead.org/mtd-2.6: (120 commits) [MTD] Fix mtdoops.c compilation [MTD] [NOR] fix startup lock when using multiple nor flash chips [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true [MTD] Fix maps/physmap.c compilation with CONFIG_PM [MTD] onenand: Add panic_write function to the onenand driver [MTD] mtdoops: Use the panic_write function when present [MTD] Add mtd panic_write function pointer [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support. [MTD] physmap.c: Add support for multiple resources [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179... [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver [MTD] [NAND] Remove unused variable in plat_nand_remove [MTD] Unlocking all Intel flash that is locked on power up. [MTD] [NAND] at91_nand: Make mtdparts option can override board info [MTD] mtdoops: Various minor cleanups [MTD] mtdoops: Ensure sequential write to the buffer [MTD] mtdoops: Perform write operations in a workqueue [MTD] mtdoops: Add further error return code checking [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c ...
2008-02-03drivers/mtd/: Spelling fixesJoe Perches1-1/+1
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-01-26[MTD] [NAND] fix s3c2410 error correctionMatt Reimer1-14/+12
The single-bit error correction was, well, incorrect. For determing which bit to correct it was using P1' P2' P4' P8' instead of P1 P2 P4 P8, and it was using P16' P32' P64' P128' P256' P512' P1024' P2048' instead of P16 P32 P64 P128 P256 P512 P1024 P2048. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-01-12[MTD] [NAND] make s3c2410 indicate an error for multi-bit read errorsMatt Reimer1-1/+1
If there were multiple bit errors in the data s3c2410_nand_correct_data() was returning 0 (no error) instead of -1, so the upper layers (like JFFS2) would not know the data is corrupt. Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-11-28[MTD] [NAND] S3C2410 correctly set nFCE over resumeBen Dooks1-0/+20
Ensure the nFCE line is de-asserted over suspend and then re-initialised when the system resumes. This is to ensure that the NAND is kept in lowest power mode over suspend (power settings are only specified for nFCE inactive) as well as fixing the Simtec Osiris which relies on nFCE being inactive. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-20[MTD] [NAND] add s3c2440-specific read_buf/write_bufMatt Reimer1-0/+14
Add read_buf/write_buf for s3c2440, which can read/write 32 bits at a time rather than just 8. In my testing on an s3c2440a running at 400 MHz with a 100 MHz HCLK, read performance improves by 36% (from 5.19 MB/s to 7.07 MB/s). Signed-off-by: Matt Reimer <mreimer@vpop.net> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-10-19Add missing newlines to some uses of dev_<level> messagesJoe Perches1-1/+1
Found these while looking at printk uses. Add missing newlines to dev_<level> uses Add missing KERN_<level> prefixes to multiline dev_<level>s Fixed a wierd->weird spelling typo Added a newline to a printk Signed-off-by: Joe Perches <joe@perches.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: Tilman Schmidt <tilman@imap.cc> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: James Smart <James.Smart@Emulex.Com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-25[MTD] [NAND] s3c2410: fix arch movesBen Dooks1-2/+2
Fixup the includes which have been moved around when changing the s3c24xx arch support. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-25[ARM] 4233/1: nand/s3c2410.c: warning fixArnaud Patard1-1/+1
Noticed while building a s3c2410 kernel : drivers/mtd/nand/s3c2410.c: In function 's3c2440_nand_calculate_ecc': drivers/mtd/nand/s3c2410.c:476: warning: format '%06x' expects type 'unsigned int', but argument 3 has type 'long unsigned int' This patch fixes it. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-18[MTD] [NAND] S3C2412 fix hw eccMatthieu CASTET1-0/+27
S3C2412 use differents registers than s3c2440 for hw ecc handling. Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.fr> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-02-09[MTD] [NAND] S3C2410: Hardware ECC correction codeBen Dooks1-9/+62
Add support for correcting errors detected by the hardware ECC. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-11-30[MTD] Remove trailing whitespaceDavid Woodhouse1-1/+1
The newly-added cafe_ecc.c had a lot of it because of the way the lookup table was auto-generated; clean up the other files too while we're at it. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-27[MTD NAND] s3c2412 support in s3c2410.cBen Dooks1-43/+111
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>
2006-06-21[MTD] NAND: S3C2410 convert prinks to dev_*()sBen Dooks1-6/+4
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>
2006-06-19[MTD NAND] S3C2410 driver cleanupBen Dooks1-8/+3
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[MTD NAND] s3c24x0 board: Fix clock handling, ensure proper initialisation.Ben Dooks1-5/+71
Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-10[MTD NAND] Fix s3c2410 NAND driver so it at least _looks_ like it compilesDavid Woodhouse1-5/+5
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>
2006-05-29[MTD] NAND Replace oobinfo by ecclayoutThomas Gleixner1-3/+2
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>
2006-05-24[MTD] Refactor NAND hwcontrol to cmd_ctrlThomas Gleixner1-44/+20
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[MTD] NAND modularize ECCThomas Gleixner1-7/+9
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>
2006-05-14[MTD] Fix module refcounting in NAND board drivers.David Woodhouse1-0/+1
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>
2006-05-13[MTD NAND] Indent all of drivers/mtd/nand/*.c.David Woodhouse1-50/+29
It was just too painful to deal with. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-01-07[ARM] Move asm/hardware/clock.h to linux/clk.hRussell King1-1/+1
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>
2006-01-03[ARM] Remove clk_use()/clk_unuse()Russell King1-2/+0
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>
2005-11-10[DRIVER MODEL] Convert platform drivers to use struct platform_driverRussell King1-38/+39
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>
2005-11-07[MTD] NAND: Clean up trailing white spacesThomas Gleixner1-15/+15
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07[MTD] NAND s3c2410.c: Fix timing calculation bugsBen Dooks1-9/+12
Spotted by basprog@mail.ru Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07[MTD] NAND s3c2410.c: Fix missing dev parameter to dev_errBen Dooks1-2/+2
Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-07[MTD] NAND: s3c2410.c Initialize owner in device_driver structBen Dooks1-1/+3
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>
2005-11-07[MTD] NAND: s3c2410 use dev_err() to report errors instead of printk()Ben Dooks1-7/+7
Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-10-31Merge master.kernel.org:/home/rmk/linux-2.6-drvmodelLinus Torvalds1-1/+1
Manual #include fixups for clashes - there may be some unnecessary
2005-10-31[PATCH] fix missing includesTim Schmielau1-0/+1
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>
2005-10-29Create platform_device.h to contain all the platform device details.Russell King1-1/+1
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>
2005-09-29[ARM] Don't include mach-types.h unnecessarilyRussell King1-1/+0
It's pointless to include mach-types.h if you're not going to use anything from it. These references were removed as a result of: grep -lr 'asm/mach-types\.h' . | xargs grep -L 'machine_is_\|MACH_TYPE_\|MACHINE_START\|machine_type' Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-07[MTD] NAND s3c2410: Add missing NULL pointer checkBen Dooks1-2/+3
Fix OOPs if there was no platform set information passed Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-06-29[MTD] NAND: s3c24xx updatesBen Dooks1-32/+148
Fix error in timing generation, Tacls is only in the range 0..3 Add proper support for the s3c2440 NAND controller, which has now been tested on several s3c2440 implementations. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-05-23[MTD] NAND s3c2410: Simplify command handlingBen Dooks1-106/+12
Updated with tglx's suggestion to simply the command invocation by simply changing the address of the IO write area Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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