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path: root/drivers/mtd/nand/fsl_elbc_nand.c
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2016-09-23mtd: nand: import nand_hw_control_init()Marc Gonzalez
The code to initialize a struct nand_hw_control is duplicated across several drivers. Factorize it using an inline function. Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-05-05mtd: nand: fsl_elbc: set ECC algorithm explicitlyRafał Miłecki
This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to enum nand_ecc_algo). Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-05-05mtd: nand: fsl_elbc: switch to mtd_ooblayout_opsBoris Brezillon
Implementing the mtd_ooblayout_ops interface is the new way of exposing ECC/OOB layout to MTD users. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-01-07mtd: nand: make use of nand_set/get_controller_data() helpersBoris BREZILLON
New helpers have been added to avoid directly accessing chip->field. Use them where appropriate. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> [Brian: fixed a few rebase conflicts] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-12-18mtd: nand: remove useless mtd->priv = chip assignmentsBoris BREZILLON
mtd_to_nand() now uses the container_of() approach to transform an mtd_info pointer into a nand_chip one. Drop useless mtd->priv assignments from NAND controller drivers. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-12-18mtd: nand: fsl_elbc: use the mtd instance embedded in struct nand_chipBoris BREZILLON
struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-12-08mtd: nand: make use of mtd_to_nand() in NAND driversBoris BREZILLON
mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all NAND drivers to use it. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-11-11mtd: nand: drop unnecessary partition parser dataBrian Norris
All of these drivers set up a parser data struct just to communicate DT partition data. This field has been deprecated and is instead supported by telling nand_scan_ident() about the 'flash_node'. This patch: * sets chip->flash_node for those drivers that didn't already (but used OF partitioning) * drops the parser data * switches to the simpler mtd_device_register() where possible, now that we've eliminated one of the auxiliary parameters Now that we've assigned chip->flash_node for these drivers, we can probably rely on nand_dt_init() to do more of the DT parsing for us, but for now, I don't want to fiddle with each of these drivers. The parsing is done in duplicate for now on some drivers. I don't think this should break things. (Famous last words.) (Rolled in some changes by Boris Brezillon) Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2015-10-13mtd: nand: pass page number to ecc->write_xxx() methodsBoris BREZILLON
The ->read_xxx() methods are all passed the page number the NAND controller is supposed to read, but ->write_xxx() do not have such a parameter. This is a problem if we want to properly implement data scrambling/randomization in order to mitigate MLC sensibility to repeated pattern: to prevent bitflips in adjacent pages in the same block we need to avoid repeating the same pattern at the same offset in those pages, hence the randomizer/scrambler engine need to be passed the page value in order to adapt its seed accordingly. Moreover, adding the page parameter to the ->write_xxx() methods add some consistency to the current API. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> CC: Josh Wu <josh.wu@atmel.com> CC: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> CC: Maxime Ripard <maxime.ripard@free-electrons.com> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> CC: Huang Shijie <shijie.huang@arm.com> CC: Stefan Agner <stefan@agner.ch> CC: devel@driverdev.osuosl.org CC: linux-arm-kernel@lists.infradead.org CC: linux-kernel@vger.kernel.org Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-10-13mtd: nand: fsl_elbc_nand: show parent device in sysfsFrans Klaver
Fix a bug where mtd parent device symlinks aren't shown in sysfs. While at it, make use of the default owner value set by mtdcore. Signed-off-by: Frans Klaver <fransklaver@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-28mtd: fsl_elbc_nand: Fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-10-20mtd: nand: drop owner assignment from platform_driversWolfram Sang
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>
2014-05-20mtd: eLBC NAND: fix subpage write supportPekon Gupta
As subpage write is enabled by default for all drivers, nand_write_subpage_hwecc causes a crash if the driver did not register ecc->hwctl or ecc->calculate. This behavior was introduced in commit 837a6ba4f3b6d23026674e6af6b6849a4634fff9 "mtd: nand: subpage write support for hardware based ECC schemes". This fixes a crash by emulating subpage write support by padding sub-page data with 0xff on either sides to make it full page compatible. Reported-by: Helmut Schaa <helmut.schaa@googlemail.com> Tested-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Pekon Gupta <pekon@ti.com> Reviewed-by: Scott Wood <scottwood@freescale.com> Cc: <stable@vger.kernel.org> # 3.10.x+ Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-03-10mtd: delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: linux-mtd@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> [Brian: dropped one incorrect hunk] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-11mtd: nand: Update mtd.name assignment type to u64 for IFC, eLBCPrabhakar Kushwaha
mtd.name is assigned to IFC NAND physical address. Assignment type is u32. It is not providing correct physical address of IFC NAND. Update assignment type to u64. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-01-03mtd: fsl_elbc_nand: Remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-11-14Merge tag 'for-linus-20131112' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD changes from Brian Norris: - Unify some compile-time differences so that we have fewer uses of #ifdef CONFIG_OF in atmel_nand - Other general cleanups (removing unused functions, options, variables, fields; use correct interfaces) - Fix BUG() for new odd-sized NAND, which report non-power-of-2 dimensions via ONFI - Miscellaneous driver fixes (SPI NOR flash; BCM47xx NAND flash; etc.) - Improve differentiation between SLC and MLC NAND -- this clarifies an ABI issue regarding the MTD "type" (in sysfs and in the MEMGETINFO ioctl), where the MTD_MLCNANDFLASH type was present but inconsistently used - Extend GPMI NAND to support multi-chip-select NAND for some platforms - Many improvements to the OMAP2/3 NAND driver, including an expanded DT binding to bring us closer to mainline support for some OMAP systems - Fix a deadlock in the error path of the Atmel NAND driver probe - Correct the error codes from MTD mmap() to conform to POSIX and the Linux Programmer's Manual. This is an acknowledged change in the MTD ABI, but I can't imagine somebody relying on the non-standard -ENOSYS error code specifically. Am I just being unimaginative? :) - Fix a few important GPMI NAND bugs (one regression from 3.12 and one long-standing race condition) - More? Read the log! * tag 'for-linus-20131112' of git://git.infradead.org/linux-mtd: (98 commits) mtd: gpmi: fix the NULL pointer mtd: gpmi: fix kernel BUG due to racing DMA operations mtd: mtdchar: return expected errors on mmap() call mtd: gpmi: only scan two chips for imx6 mtd: gpmi: Use devm_kzalloc() mtd: atmel_nand: fix bug driver will in a dead lock if no nand detected mtd: nand: use a local variable to simplify the nand_scan_tail mtd: nand: remove deprecated IRQF_DISABLED mtd: dataflash: Say if we find a device we don't support mtd: nand: omap: fix error return code in omap_nand_probe() mtd: nand_bbt: kill NAND_BBT_SCANALLPAGES mtd: m25p80: fixup device removal failure path mtd: mxc_nand: Include linux/of.h header mtd: remove duplicated include from mtdcore.c mtd: m25p80: add support for Macronix mx25l3255e mtd: nand: omap: remove selection of BCH ecc-scheme via KConfig mtd: nand: omap: updated devm_xx for all resource allocation and free calls mtd: nand: omap: use drivers/mtd/nand/nand_bch.c wrapper for BCH ECC instead of lib/bch.c mtd: nand: omap: clean-up ecc layout for BCH ecc schemes mtd: nand: omap2: clean-up BCHx_HW and BCHx_SW ECC configurations in device_probe ...
2013-10-27mtd: nand: remove obsolete 'ecclayout' fieldBrian Norris
This field is never used, except to print it out. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-10-09drivers: clean-up prom.h implicit includesRob Herring
Powerpc is a mess of implicit includes by prom.h. Add the necessary explicit includes to drivers in preparation of prom.h cleanup. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org>
2012-11-22mtd: remove use of __devinitBill Pemberton
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>
2012-11-15mtd: fsl_elbc_nand: remove unnecessary badblock_patternBrian Norris
Since the introduction of nand_create_default_bbt_descr() (now known as nand_create_badblock_pattern()) in commit 58373ff0afff4cc8ac40608872995f4d87eb72ec nand_chip.badblock_pattern will be dynamically calculated to the same 1-byte-length pattern that is required by fsl_elbc_nand. This custom badblock_pattern is no longer needed, then, and its removal may help facilitate further nand_bbt.c/nand_base.c cleanup in the future (one down, many to go?) Anyway, with nand_bbt.c fixed, this effectively reverts: commit 452db2724351ff3d9416a183a7955e00ab4e6ab4 [MTD] [NAND] fsl_elbc_nand: fix OOB workability for large page NAND chips Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-09-29mtd: kill MTD_NAND_VERIFY_WRITEHuang Shijie
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>
2012-07-06mtd: nand: teach write_page and write_page_raw return an error codeJosh Wu
There is an implemention of hardware ECC write page function which may return an error indication. For instance, using Atmel HW PMECC to write one page into a nand flash, the hardware engine will compute the BCH ecc code for this page. so we need read a the status register to theck whether the ecc code is generated. But we cannot assume the status register always can be ready, for example, incorrect hardware configuration or hardware issue, in such case we need write_page() to return a error code. Since the definition of 'write_page' function in struct nand_ecc_ctrl is 'void'. So this patch will: 1. add return 'int' value for 'write_page' function. 2. to be consitent, add return 'int' value for 'write_page_raw' fuctions too. 3. add code to test the return value, and if negative, indicate an error happend when write page with ECC. 4. fix the compile warning in all impacted nand flash driver. Note: I couldn't compile-test all of these easily, as some had ARCH dependencies. Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06mtd: elbc nand: use drvdata to only remove the relevant chipScott Wood
Previously the remove method was looping and removing all chips, which is obviously not the right thing to do — left over from when the driver was organized differently and that was the remove method for the entire controller. This would result in bad things happening if you have more than one NAND chip, and remove the module. This also fixes priv->dev to properly point to the chip's device rather than the controller's. Until now priv->dev was only used for error/debug prints (and it's an improvement there), so this shouldn't break anything. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-07-06mtd: nand: kill NAND_NO_READRDYBrian Norris
According to its documentation, the NAND_NO_READRDY option is always used when autoincrement is not supported. Autoincrement support was recently dropped, so we can drop this options as well (defaulting to "no read ready check"). Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: eLBC NAND: utilize oob_required parameterBrian Norris
Don't read OOB if the caller doesn't require it. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reviewed-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: nand: add 'oob_required' argument to NAND {read,write}_page interfacesBrian Norris
New NAND controllers can perform read/write via HW engines which don't expose OOB data in their DMA mode. To reflect this, we should rework the nand_chip / nand_ecc_ctrl interfaces that assume that drivers will always read/write OOB data in the nand_chip.oob_poi buffer. A better interface includes a boolean argument that explicitly tells the callee when OOB data is requested by the calling layer (for reading/writing to/from nand_chip.oob_poi). This patch adds the 'oob_required' parameter to each relevant {read,write}_page interface; all 'oob_required' parameters are left unused for now. The next patch will set the parameter properly in the nand_base.c callers, and follow-up patches will make use of 'oob_required' in some of the callee functions. Note that currently, there is no harm in ignoring the 'oob_required' parameter and *always* utilizing nand_chip.oob_poi, but there can be performance/complexity/design benefits from avoiding filling oob_poi in the common case. I will try to implement this for some drivers which can be ported easily. Note: I couldn't compile-test all of these easily, as some had ARCH dependencies. [dwmw2: Merge later 1/0 vs. true/false cleanup] Signed-off-by: Brian Norris <computersforpeace@gmail.com> Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Acked-by: Jiandong Zheng <jdzheng@broadcom.com> Acked-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: nand: kill NAND_NO_AUTOINCR optionBrian Norris
No drivers use auto-increment NAND, so kill the NO_AUTOINCR option entirely. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: nand: read_page() returns max_bitflipsMike Dunn
The ecc.read_page() method for nand drivers is changed to return the maximum number of bitflips that were corrected on any one region covering an ecc step, This patch doesn't change what the nand code returns to mtd. This v2 includes the change to the fsl_ifc_nand driver requested by Scott¹. ¹ http://lists.infradead.org/pipermail/linux-mtd/2012-April/040883.html Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by (freescale changes): Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: flash drivers set ecc strengthMike Dunn
Flash device drivers initialize 'ecc_strength' in struct mtd_info, which is the maximum number of bit errors that can be corrected in one writesize region. Drivers using the nand interface intitialize 'strength' in struct nand_ecc_ctrl, which is the maximum number of bit errors that can be corrected in one ecc step. Nand infrastructure code translates this to 'ecc_strength'. Also for nand drivers, the nand infrastructure code sets ecc.strength for ecc modes NAND_ECC_SOFT, NAND_ECC_SOFT_BCH, and NAND_ECC_NONE. It is set in the driver for all other modes. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: nand: Add ONFI support for FSL NAND controllerShengzhou Liu
- fix NAND_CMD_READID command for ONFI detect. - add NAND_CMD_PARAM command to read the ONFI parameter page. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: nand: fixup for fmr initialization of Freescale NAND controllerShengzhou Liu
There was a bug for fmr initialization, which lead to fmr was always 0x100 in fsl_elbc_chip_init() and caused FCM command timeout before calling fsl_elbc_chip_init_tail(), now we initialize CWTO to maximum timeout value and not relying on the setting of bootloader. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: fsl_elbc_nand: set Nand flash page address to FBAR and FPAR correctlyLiu Shuo
If we use the Nand flash chip whose number of pages in a block is greater than 64(for large page), we must treat the low bit of FBAR as being the high bit of the page address due to the limitation of FCM, it simply uses the low 6-bits (for large page) of the combined block/page address as the FPAR component, rather than considering the actual block size. Signed-off-by: Liu Shuo <b35362@freescale.com> Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Tang Yuantian <b29983@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: nand: set correct length to FBCR for a non-full-page writeLiu Shuo
When we do a non-full-page write, the length be set to FBCR should not be 'elbc_fcm_ctrl->index', it should be 'elbc_fcm_ctrl->index - elbc_fcm_ctrl->column'. Signed-off-by: Liu Shuo <b35362@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: nand: use elbc_fcm_ctrl->oob to set FPAR_MS bit of FPARLiu Shuo
On both of large-page chip and small-page chip, we always should use 'elbc_fcm_ctrl->oob' to set the FPAR_LP_MS/FPAR_SP_MS bit of FPAR, don't use a overflowed 'column' to set it. Signed-off-by: Liu Shuo <b35362@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-01-09mtd: convert drivers/mtd/* to use module_platform_driver()Axel Lin
This patch converts the drivers in drivers/mtd/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-09-11mtd: eLBC NAND: update ecc_stats.corrected when lteccr availableMichael Hench
Signed-off-by: Michael Hench <MichaelHench@gmail.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2011-09-11mtd: eLBC NAND: remove elbc_fcm_ctrl->oob_poiMike Hench
The eLBC NAND driver currently follows up each program/write operation with a read-back of the page, in order to [ostensibly] fill in ECC data for the caller. However, the page address used for this read is always -1, so the read will never work correctly. Remove this useless (and potentially problematic) block of code. Signed-off-by: Matthew L. Creech <mlcreech@gmail.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-09-11mtd: nand: don't free the global data too earlyLiu Shuo
The global data fsl_lbc_ctrl_dev->nand don't have to be freed in fsl_elbc_chip_remove(). The right place to do that is in fsl_elbc_nand_remove() if elbc_fcm_ctrl->counter is zero. Signed-off-by: Liu Shuo <b35362@freescale.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-09-11mtd: fsl_elbc_nand.c: use mtd_device_parse_registerDmitry Eremin-Solenikov
Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-09-11mtd: fsl_elbc_nand: use ofpart through generic parsingDmitry Eremin-Solenikov
Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-09-11mtd: nand: rename NAND_USE_FLASH_BBTBrian Norris
Recall the recently added prefix requirements: * "NAND_" for flags in nand.h, used in nand_chip.options * "NAND_BBT_" for flags in bbm.h, used in nand_chip.bbt_options or in nand_bbt_descr.options Thus, I am changing NAND_USE_FLASH_BBT to NAND_BBT_USE_FLASH. Again, this flag is found in bbm.h and so should NOT be used in the "nand_chip.options" field. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-09-11mtd: nand: consolidate redundant flash-based BBT flagsBrian Norris
This patch works with the following three flags from two headers (nand.h and bbm.h): (1) NAND_USE_FLASH_BBT (nand.h) (2) NAND_USE_FLASH_BBT_NO_OOB (nand.h) (3) NAND_BBT_NO_OOB (bbm.h) These flags are all related and interdependent, yet they were in different headers. Flag (2) is simply the combination of (1) and (3) and can be eliminated. This patch accomplishes the following: * eliminate NAND_USE_FLASH_BBT_NO_OOB (i.e., flag (2)) * move NAND_USE_FLASH_BBT (i.e., flag (1)) to bbm.h It's important to note that because (1) and (3) are now both found in bbm.h, they should NOT be used in the "nand_chip.options" field. I removed a small section from the mtdnand DocBook because it referes to NAND_USE_FLASH_BBT in nand.h, which has been moved to bbm.h. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-06-22powerpc/85xx: fix NAND_CMD_READID read bytes numberShaohui Xie
when nand_get_flash_type() is called, it will read 8 bytes of ID instead of 5, but the driver only read 5 bytes, so kernel will dump error messages like: fsl-lbc ffe124000.localbus: read_byte beyond end of buffer fsl-lbc ffe124000.localbus: read_byte beyond end of buffer fsl-lbc ffe124000.localbus: read_byte beyond end of buffer Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-05-25mtd: fsl_elbc_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>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-12-03mtd: fsl_elbc_nand: fix jffs2 problem after NAND-flash image record in u-bootSergej.Stepanov@ids.de
This patch should fix the following problem: 1. the jffs2-image update in the u-boot was ok 2. first restart and first mount of the NAND-flash-partition was also ok 3. before the restart of controller there are no any activity on NAND-flash except of the jffs2_gcd_mtdX-process ... 4. BUT after the second restart the NAND-flash-partition could not be really used after the second mount, dmesg filled with messages: ... jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x03ce0000: 0xc0ff instead jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x03d00000: 0xc0ff instead .... Just for for info: the behaviour observed on mpc8313-based board with the large-page NAND. The only activity on NAND-flash was the garbage collector process, that looks for CLEANMARKER-nodes As Scott said it was broken by commit 3ab8f2a2e7011c5e83363b42950757e46ef06824 Signed-off-by: Sergej Stepanov <Sergej.Stepanov@ids.de> -- Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25P4080/mtd: Fix the freescale lbc issue with 36bit modeLan Chunhe-B25806
When system uses 36bit physical address, res.start is 36bit physical address. But the function of in_be32 returns 32bit physical address. Then both of them compared each other is wrong. So by converting the address of res.start into the right format fixes this issue. Signed-off-by: Lan Chunhe-B25806 <b25806@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25P4080/eLBC: Make Freescale elbc interrupt common to elbc devicesRoy Zang
Move Freescale elbc interrupt from nand driver to elbc driver. Then all elbc devices can use the interrupt instead of ONLY nand. For former nand driver, it had the two functions: 1. detecting nand flash partitions; 2. registering elbc interrupt. Now, second function is removed to fsl_lbc.c. Signed-off-by: Lan Chunhe-B25806 <b25806@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: Wood Scott-B07421 <B07421@freescale.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-06of/device: Replace struct of_device with struct platform_deviceGrant Likely
of_device is just an alias for platform_device, so remove it entirely. Also replace to_of_device() with to_platform_device() and update comment blocks. This patch was initially generated from the following semantic patch, and then edited by hand to pick up the bits that coccinelle didn't catch. @@ @@ -struct of_device +struct platform_device Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-22 03:33:54 +0000