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path: root/drivers/mtd/nand/atmel_nand.c
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2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-06-22net: remove mm.h inclusion from netdevice.hAlexey Dobriyan
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually). To prevent mm.h inclusion via other channels also extract "enum dma_data_direction" definition into separate header. This tiny piece is what gluing netdevice.h with mm.h via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h". Removal of mm.h from scatterlist.h was tried and was found not feasible on most archs, so the link was cutoff earlier. Hope people are OK with tiny include file. Note, that mm_types.h is still dragged in, but it is a separate story. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-10treewide: Convert uses of struct resource to resource_size(ptr)Joe Perches
Several fixes as well where the +1 was missing. Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-25mtd: atmel_nand: convert to mtd_device_register()Jamie Iles
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25mtd: atmel_nand: add missing include of linux/dmaengine.hHans-Christian Egtvedt
Including linux/dmaengine.h fixes the missing definition of the enum dma_ctrl_flags type used in atmel_nand_dma_op function. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-04-01mtd: atmel_nand: use CPU I/O when buffer is in vmalloc(ed) regionHong Xu
The previous way of dealing with vmalloc(ed) region by walking though the pages can not work well actually. We just fall back to CPU I/O when the buffer address is higher than `high_memory'. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-04-01mtd: atmel_nand: modify test case for using DMA operationsNicolas Ferre
We have better performances not using DMA for oob operations. Modify size test so that it is using DMA for size greater than oobsize. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-04-01mtd: atmel_nand: fix support for CPUs that do not support DMA accessHong Xu
use_dma was always "1" even if the CPU does not support DMA Tested on AT91SAM9261EK by Jean-Christophe PLAGNIOL-VILLARD Reported-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-04-01mtd: atmel_nand: trivial: change DMA usage information traceNicolas Ferre
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-11mtd: atmel_nand: Add DMA support to access NandflashHong Xu
Some SAM9 chips have the ability to perform DMA between CPU and SMC controller. This patch adds DMA support for SAM9RL, SAM9G45, SSAM9G46,AM9M10, SAM9M11. Signed-off-by: Hong Xu <hong.xu@atmel.com> Tested-by: Ryan Mallon <ryan@bluewatersys.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-06mtd: atmel_nand: fix warning: 'part_probes' defined but not usedAndreas Bießmann
This patch fixes drivers/mtd/nand/atmel_nand.c:372: warning: 'part_probes' defined but not used which is issued when CONFIG_MTD_PARTITIONS is defined but CONFIG_MTD_CMDLINE_PARTS not. Signed-off-by: Andreas Bießmann <biessmann@corscience.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-02-26mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()David Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-11-30mtd: error return -EIO instead of EIORoel Kluin
Return a negative error value instead of a positive Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-08mtd: atmel_nand: unused variable removedClaudio Scordino
Unused variable "eccpos" removed from atmel_nand driver. Signed-off-by: Claudio Scordino <claudio@evidence.eu.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19mtd: nand: add "page" parameter to all read_page/read_page_raw APIsSneha Narnakaje
This patch adds a new "page" parameter to all NAND read_page/read_page_raw APIs. The read_page API for the new mode ECC_HW_OOB_FIRST requires the page information to send the READOOB command and read the OOB area before the data area. Reviewed-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-06-25mtd: atmel_nand: Fix typo s/parititions/partitions/Thadeu Lima de Souza Cascardo
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-06-05mtd: add on-flash BBT support for Atmel NAND driverSimon Polette
Just add a new on-flash-bbt module parameter. Signed-off-by: Simon Polette <spolette@adetelgroup.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-02-16[ARM] 5400/1: Add support for inverted rdy_busy pin for Atmel nand device ↵Gregory CLEMENT
controller Add support for inverted rdy_busy pin for Atmel nand device controller It will fix building error on NeoCore926 board. Acked-by: Andrew Victor <linux@maxim.org.za> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Gregory CLEMENT <gclement@adeneo.adetelgroup.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-10-14[MTD] [NAND] Bug on atmel_nand HW ECC : OOB info not correctly writtenRichard Genoud
The functions that write the OOB info (on hardware ECC only) use the HW_SYNDROME method. This is not correct : the start position is "pos = eccsize + chunk" and should be eccsize. So, the standard (nand_write_oob_std) function should be used. This patch corrects this by using NAND_ECC_HW instead of NAND_ECC_HW_SYNDROME. This has only been tested on small pages nand flash. (if anyone can test it on large pages that would be great). kernel version : 2.6.27-rc2 (current git mtd-2.6) Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-11[MTD] [NAND] atmel_nand: Work around AT32AP7000 ECC erratumHaavard Skinnemoen
The ALE signal isn't correctly wired up to the ECC controller on the AP7000, so it starts calculating ECC during the address cycles. Work around this by resetting the ECC controller between the address and data cycles. Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-07-11[MTD] [NAND] atmel_nand speedup via {read,write}s{b,w}()David Brownell
This uses __raw_{read,write}s{b,w}() primitives to access data on NAND chips for more efficient I/O. On an arm926 with memory clocked at 100 MHz, this reduced the elapsed time for a 64 MiB read by 16%. ("dd" /dev/mtd0 to /dev/null, with an 8-bit NAND using hardware ECC and 128KiB blocksize.) Also some minor section tweaks: - Use platform_driver_probe() so no pointer to probe() lingers after that code has been removed at run-time. - Use __exit and __exit_p so the remove() code will normally be removed by the linker. Since these buffer read/write calls are new, this increases the runtime code footprint (by 88 bytes on my build, after the section tweaks). [haavard.skinnemoen@atmel.com: rebase onto atmel_nand rename] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-06-07[MTD] [NAND] Fix checkpatch warnings which showed up when atmel_nand.c movedDavid Woodhouse
Some of them, at least. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-07[MTD] [NAND] atmel_nand: Clean up and fix probe() error pathHåvard Skinnemoen
This fixes several bugs in the atmel_nand_probe() error path, including at least one memory leak. Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-07[MTD] [NAND] rename at91_nand -> atmel_nand: internal symbolsHåvard Skinnemoen
This is basically s/at91_nand/atmel_nand/g with some manual inspection. Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-07[MTD] [NAND] rename at91_nand -> atmel_nand: file names and KconfigHåvard Skinnemoen
The AT91 NAND driver needs just a few tiny modifications to work on AVR32 as well. Rename it atmel_nand to reflect this. Also move the ECC register definitions into drivers/mtd/nand since they are only useful to the atmel_nand driver, and get rid of the useless filename at the top of each file. Signed-off-by: Håvard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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