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path: root/drivers/mtd/nand/mxc_nand.c
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* mtd: mxc-nand: Warn on unimplemented commandsUwe Kleine-König2015-03-11
| | | | | | | | | | | | | The PARAM command was long unimplemented and it probably wasn't noticed because chip probing using only the few bytes returned by the READID command are good enough in most cases to determine the chip in use. Still to notice such a shortcoming earlier in the future would be nice in case it's something more vital. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc-nand: Implement support for PARAM commandUwe Kleine-König2015-03-11
| | | | | | | | | | | | | | | | | | | | | | | The mxc-nand driver never supported the PARAM command to read out the ONFI parameter page and so always relied on probing my manufacturer and device id (as provided by the READID command). This patch implements reading out the first parameter page copy at least which should be good enough in practise. This makes the boot log change from nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xb1 nand: Micron NAND 128MiB 1,8V 16-bit to nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xb1 nand: Micron MT29F1G16ABBDAH4 on my machine. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc-nand: Allow to use column addresses different from 0Uwe Kleine-König2015-03-11
| | | | | | | | | | | | | | | | | | | The mxc-nand controller works pagewise and so usually only sends commands to the flash chip with column == 0. A request with column != 0 from the upper layer is then fulfilled by indexing appropriately into the device's RAM buffer. To be able to access the ONFI marker at offset 0x20 in reply to the READID command however it's invalid to read 32 bytes starting from column 0. So let the function used to send the address cycles send the column address actually passed instead of 0 and fix all callers to pass 0 instead appropriately. Also add some warnings in case this patch changes the drivers semantics. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc-nand: Do the word to byte mangling in the read_byte callbackUwe Kleine-König2015-03-11
| | | | | | | | | | | When the hardware operates in 16 bit mode it always reads 16 bits even for operations that only have the lower 8 bits defined. So the upper bits must be discarded. Do this in the read_byte callback instead of when reading the NAND id to support reading byte wise more than 5 bytes and at other occations (like reading the ONFI parameter page). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc-nand: Only enable hardware checksumming for fully detected flashesUwe Kleine-König2015-03-11
| | | | | | | | | | | | | | | At least on i.MX25 (i.e. NFCv2) preset_v2 is called with mtd->writesize == 0 that is before the connect flash chip is detected. It then configures for 8 bit ECC mode which needs 26 bytes of OOB per 512 bytes main section. For flashes with a smaller OOB area issuing a read page command makes the controller stuck with this config. Note that this currently doesn't hurt because the first read page command is issued only after detection is complete and preset is called once more. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc-nand: Add a timeout when waiting for interruptUwe Kleine-König2015-03-11
| | | | | | | | | | | While extending the mxc-nand driver it happend to me a few times that the device was stuck and this made the machine hang during boot. So implement a timeout and print a stack trace the first time this happens to make it debuggable. The return type of the waiting function is also changed to int to be able to handle the timeout in the caller. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* Merge tag 'for-linus-20141215' of git://git.infradead.org/linux-mtdLinus Torvalds2014-12-17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MTD updates from Brian Norris: "Summary: - Add device tree support for DoC3 - SPI NOR: Refactoring, for better layering between spi-nor.c and its driver users (e.g., m25p80.c) New flash device support Support 6-byte ID strings - NAND: New NAND driver for Allwinner SoC's (sunxi) GPMI NAND: add support for raw (no ECC) access, for testing purposes Add ATO manufacturer ID A few odd driver fixes - MTD tests: Allow testers to compensate for OOB bitflips in oobtest Fix a torturetest regression - nandsim: Support longer ID byte strings And more" * tag 'for-linus-20141215' of git://git.infradead.org/linux-mtd: (63 commits) mtd: tests: abort torturetest on erase errors mtd: physmap_of: fix potential NULL dereference mtd: spi-nor: allow NULL as chip name and try to auto detect it mtd: nand: gpmi: add raw oob access functions mtd: nand: gpmi: add proper raw access support mtd: nand: gpmi: add gpmi_copy_bits function mtd: spi-nor: factor out write_enable() for erase commands mtd: spi-nor: add support for s25fl128s mtd: spi-nor: remove the jedec_id/ext_id mtd: spi-nor: add id/id_len for flash_info{} mtd: nand: correct the comment of function nand_block_isreserved() jffs2: Drop bogus if in comment mtd: atmel_nand: replace memcpy32_toio/memcpy32_fromio with memcpy mtd: cafe_nand: drop duplicate .write_page implementation mtd: m25p80: Add support for serial flash Spansion S25FL132K MTD: m25p80: fix inconsistency in m25p_ids compared to spi_nor_ids mtd: spi-nor: improve wait-till-ready timeout loop mtd: delete unnecessary checks before two function calls mtd: nand: omap: Fix NAND enumeration on 3430 LDP mtd: nand: add ATO manufacturer info ...
| * mtd: mxc_nand: use __iowrite32_copy for 32 bit copyKoul, Vinod2014-11-05
| | | | | | | | | | | | | | | | The driver was also using own method to do 32bit copy, turns out we have a kernel API so use that instead Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* | mtd: nand: drop owner assignment from platform_driversWolfram Sang2014-10-20
|/ | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* mtd: mxc_nand: Propagate the error if platform_get_irq() failsFabio Estevam2014-03-11
| | | | | | | | Check the return value from platform_get_irq() and propagate it in the case of error. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc-nand: kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZEHuang Shijie2014-01-11
| | | | | | | | | | | | | We kill the NAND_MAX_PAGESIZE/NAND_MAX_OOBSIZE by the following way: 1.) Before we call the nand_scan_ident, we allocate a temporary buffer whose size is PAGE_SIZE. 2.) After we finish the nand_scan_ident, we have already getten the page size and oob size. We will allocate the right buffer size again. Signed-off-by: Huang Shijie <shijie8@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc_nand: add missing clk_disable_unprepare() in mxcnd_remove()Wei Yongjun2014-01-03
| | | | | | | | clock source is prepared and enabled by clk_prepare_enable() in mxcnd_probe() function, but no disable/unprepare in mxcnd_remove(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: nand: mxc_nand: Check the return value from clk_prepare_enable()Fabio Estevam2014-01-03
| | | | | | | | clk_prepare_enable() may fail, so let's check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc_nand: remove duplicated ecc_stats countingMichael Grzeschik2014-01-03
| | | | | | | | | The ecc_stats.corrected count variable will already be incremented in the above framework-layer just after this callback. Cc: stable@vger.kernel.org # 2.6.36+ Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* tree-wide: use reinit_completion instead of INIT_COMPLETIONWolfram Sang2013-11-14
| | | | | | | | | | | | Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mtd: nand: remove deprecated IRQF_DISABLEDMichael Opdenacker2013-11-07
| | | | | | | | | This patch proposes to remove the use of the IRQF_DISABLED flag It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: mxc_nand: Include linux/of.h headerSachin Kamat2013-11-07
| | | | | | | | 'of_match_ptr' is defined in linux/of.h. Include it explicitly to avoid build breakage in the future. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* mtd: nand: mxc_nand: mark 'const' properlyJingoo Han2013-08-30
| | | | | | | | | | | | | The values pointed by the pointer are used as read-only. Also, mtd_device_parse_register() uses 'part_probes[]' as the second argument which is defined as 'const char * const *types'. Thus, the 'const' should be moved to be after the '*'. drivers/mtd/nand/mxc_nand.c:269:25: warning: duplicate const Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: nand: use dev_get_platdata()Jingoo Han2013-08-30
| | | | | | | | | Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: nand: mxc_nand: Remove unneeded check for platform_get_resource()Fabio Estevam2013-08-05
| | | | | | | | | devm_ioremap_resource() checks its arguments, so there is no need for explicitly checking the return value from platform_get_resource(). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: nand: mxc_nand: remove unnecessary platform_set_drvdata()Jingoo Han2013-08-05
| | | | | | | | | | | The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtdLinus Torvalds2013-03-02
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MTD update from David Woodhouse: "Fairly unexciting MTD merge for 3.9: - misc clean-ups in the MTD command-line partitioning parser (cmdlinepart) - add flash locking support for STmicro chips serial flash chips, as well as for CFI command set 2 chips. - new driver for the ELM error correction HW module found in various TI chips, enable the OMAP NAND driver to use the ELM HW error correction - added number of new serial flash IDs - various fixes and improvements in the gpmi NAND driver - bcm47xx NAND driver improvements - make the mtdpart module actually removable" * tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd: (45 commits) mtd: map: BUG() in non handled cases mtd: bcm47xxnflash: use pr_fmt for module prefix in messages mtd: davinci_nand: Use managed resources mtd: mtd_torturetest can cause stack overflows mtd: physmap_of: Convert device allocation to managed devm_kzalloc() mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement. mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional. mtd: atmel_nand: avoid to report an error when lookup table offset is 0. mtd: bcm47xxsflash: adjust names of bus-specific functions mtd: bcm47xxpart: improve probing of nvram partition mtd: bcm47xxpart: add support for other erase sizes mtd: bcm47xxnflash: register this as normal driver mtd: bcm47xxnflash: fix message mtd: bcm47xxsflash: register this as normal driver mtd: bcm47xxsflash: write number of written bytes mtd: gpmi: add sanity check for the ECC mtd: gpmi: set the Golois Field bit for mx6q's BCH mtd: devices: elm: Removes <xx> literals in elm DT node mtd: gpmi: fix a dereferencing freed memory error mtd: fix the wrong timeo for panic_nand_wait() ...
| * mtd: mxc_nand: compress ID info for send_read_id_v3Roman Schneider2013-02-04
| | | | | | | | | | | | | | | | Also compress the id in case of a v3 NAND flash controller (i.mx51, i.mx53) and 16Bit buswidth. Signed-off-by: Roman Schneider <schneider@at.festo.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* | mtd: Convert to devm_ioremap_resource()Thierry Reding2013-01-25
|/ | | | | | | | | | | | Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtdLinus Torvalds2012-12-19
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
| * mtd: mxc_nand: reorder part_probes to let cmdline override other sourcesLothar Waßmann2012-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | The cmdline is the easiest to change source of information. Thus let it take precedence over 'RedBoot' and 'ofpart'. This makes the mxc_nand driver to be in sync with all other NAND drivers that support 'cmdlinepart' partition parsing. Also change 'const char *' to 'const char const *' as advised by checkpatch.pl Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| * mtd: mxc_nand: fix unbalanced clk_disable() in error pathLothar Waßmann2012-12-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If nand_scan_ident() or nand_scan_tail() fails, the NAND chip may have been deselected and the clock already disabled. Thus, check 'clk_act' in the error path to decide whether the clock still needs to be disabled. This fixes a: |WARNING: at drivers/clk/clk.c:472 __clk_disable+0x3c/0x78() Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| * mtd: remove use of __devexitBill Pemberton2012-11-22
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| * mtd: remove use of __devinitBill Pemberton2012-11-22
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
| * mtd: remove use of __devexit_pBill Pemberton2012-11-22
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* | mtd: mxc_nand: remove cpu_is_xxx by using platform_device_idShawn Guo2012-10-14
|/ | | | | | | | | | | | | | It changes the driver to use platform_device_id rather than cpu_is_xxx to determine the controller type, and updates the platform code accordingly. As the result, mach/hardware.h inclusion gets removed from the driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: linux-mtd@lists.infradead.org
* Merge tag 'disintegrate-mtd-20121009' of ↵David Woodhouse2012-10-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/dhowells/linux-headers UAPI Disintegration 2012-10-09 Conflicts: MAINTAINERS arch/arm/configs/bcmring_defconfig arch/arm/mach-imx/clk-imx51-imx53.c drivers/mtd/nand/Kconfig drivers/mtd/nand/bcm_umi_nand.c drivers/mtd/nand/nand_bcm_umi.h drivers/mtd/nand/orion_nand.c
| * ARM: imx: move platform_data definitionsArnd Bergmann2012-09-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the imx include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Sascha Hauer <kernel@pengutronix.de> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Dan Williams <djbw@fb.com> Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org> Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Alan Cox <alan@linux.intel.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Javier Martin <javier.martin@vista-silicon.com> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
* | mtd: mxc_nand: Adapt the clock name to the new clock frameworkFabio Estevam2012-09-29
| | | | | | | | | | | | | | | | | | | | | | | | With the new i.mx clock framework the mxc_nand clock is registered as: clk_register_clkdev(clk[nfc_gate], NULL, "mxc_nand");0") So we do not need to pass "nfc" string and can use NULL instead. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: mxc_nand: Convert to module_platform_driver()Fabio Estevam2012-09-29
| | | | | | | | | | | | | | | | Using module_platform_driver() makes the code smaller and cleaner. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: kill MTD_NAND_VERIFY_WRITEHuang Shijie2012-09-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just as Artem suggested: "Both UBI and JFFS2 are able to read verify what they wrote already. There are also MTD tests which do this verification. So I think there is no reason to keep this in the NAND layer, let alone wasting RAM in the driver to support this feature. Besides, it does not work for sub-pages and many drivers have it broken. It hurts more than it provides benefits." So kill MTD_NAND_VERIFY_WRITE entirely. Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: mxc_nand: add i.MX53 supportSascha Hauer2012-07-06
| | | | | | | | | | | | | | | | | | | | The only relevant change between i.MX51 and i.MX53 is that a bitfield is shifted one bit to the left. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: mxc_nand: swap iomem resource orderSascha Hauer2012-07-06
| | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX v3 nand controller (i.MX5) needs two memory resources. Traditionally we have the AXI resource first. For sorting in this driver into the devicetree it feels much more natural to have the IP resource first. This patch swaps the ordering of these two resources. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: mxc_nand: Use managed resourcesSascha Hauer2012-07-06
| | | | | | | | | | | | | | | | | | | | To make the error path simpler and to make subsequent patches easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | nand: mxc_nand: Use clk_prepare_enable/clk_disable_unprepareFabio Estevam2012-07-06
|/ | | | | | | | Prepare the clock before enabling it. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: mxc_nand: use 32bit copy functionsSascha Hauer2012-07-06
| | | | | | | | | | | | | | | | | | | | | | The following commit changes the function used to copy from/to the hardware buffer to memcpy_[from|to]io. This does not work since the hardware cannot handle the byte accesses used by these functions. Instead of reverting this patch introduce 32bit correspondents of these functions. | commit 5775ba36ea9c760c2d7e697dac04f2f7fc95aa62 | Author: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | Date: Tue Apr 24 10:05:22 2012 +0200 | | mtd: mxc_nand: fix several sparse warnings about incorrect address space | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtdLinus Torvalds2012-06-01
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull mtd update from David Woodhouse: - More robust parsing especially of xattr data in JFFS2 - Updates to mxc_nand and gpmi drivers to support new boards and device tree - Improve consistency of information about ECC strength in NAND devices - Clean up partition handling of plat_nand - Support NAND drivers without dedicated access to OOB area - BCH hardware ECC support for OMAP - Other fixes and cleanups, and a few new device IDs Fixed trivial conflict in drivers/mtd/nand/gpmi-nand/gpmi-nand.c due to added include files next to each other. * tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd: (75 commits) mtd: mxc_nand: move ecc strengh setup before nand_scan_tail mtd: block2mtd: fix recursive call of mtd_writev mtd: gpmi-nand: define ecc.strength mtd: of_parts: fix breakage in Kconfig mtd: nand: fix scan_read_raw_oob mtd: docg3 fix in-middle of blocks reads mtd: cfi_cmdset_0002: Slight cleanup of fixup messages mtd: add fixup for S29NS512P NOR flash. jffs2: allow to complete xattr integrity check on first GC scan jffs2: allow to discriminate between recoverable and non-recoverable errors mtd: nand: omap: add support for hardware BCH ecc ARM: OMAP3: gpmc: add BCH ecc api and modes mtd: nand: check the return code of 'read_oob/read_oob_raw' mtd: nand: remove 'sndcmd' parameter of 'read_oob/read_oob_raw' mtd: m25p80: Add support for Winbond W25Q80BW jffs2: get rid of jffs2_sync_super jffs2: remove unnecessary GC pass on sync jffs2: remove unnecessary GC pass on umount jffs2: remove lock_super mtd: gpmi: add gpmi support for mx6q ...
| * mtd: mxc_nand: move ecc strengh setup before nand_scan_tailSascha Hauer2012-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 6a918bade9dab40aaef80559bd1169c69e8d69cb, the mxc_nand driver fails with: Driver must set ecc.strength when using hardware ECC This is because nand_scan_tail checks for correct ecc strength settings, so we must set them up before nand_scan_tail. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: stable@vger.kernel.org [3.4+] Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: fix several sparse warnings about incorrect address spaceUwe Kleine-König2012-05-14
| | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: implement device tree probingUwe Kleine-König2012-05-14
| | | | | | | | | | | | | | | | This is tested on i.MX27. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: put several more fields into devtype_dataUwe Kleine-König2012-05-14
| | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: put callback for data correction into devtype structUwe Kleine-König2012-05-14
| | | | | | | | | | | | | | | | This gets rid of one more nfc_is_vX(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: split chip_select function and put it into devtype structUwe Kleine-König2012-05-14
| | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: put ecc layout into devtype structsUwe Kleine-König2012-05-14
| | | | | | | | | | | | | | | | | | This commit makes problems on v1 and v2 regarding 4KiBpages more obvious. As I don't have a 4KiB flash handy I just keep the status quo. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: mxc_nand: split some functions to get rid of more nfc_is_vX()Uwe Kleine-König2012-05-14
| | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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