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path: root/drivers/mtd
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2016-11-23mtd: spi-nor: fix spansion quad enableJoël Esponde
With the S25FL127S nor flash part, each writing to the configuration register takes hundreds of ms. During that time, no more accesses to the flash should be done (even reads). This commit adds a wait loop after the register writing until the flash finishes its work. This issue could make rootfs mounting fail when the latter was done too much closely to this quad enable bit setting step. And in this case, a driver as UBIFS may try to recover the filesystem and may broke it completely. Signed-off-by: Joël Esponde <joel.esponde@honeywell.com> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
2016-11-23mtd: spi-nor: add Macronix mx25u25635f to list of known devices.Ash Benz
Signed-off-by: Ash Benz <ash.benz@bk.ru> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
2016-11-22mtd: mtdswap: fix spelling mistake "erassure" -> "erasure"Colin Ian King
Trivial fix to spelling mistake in dev_err message Signed-off-by: Colin Ian King <colin.king@canonical.com> [Brian: add EOL newline] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-11-22mtd: bcm47xxpart: fix parsing first block after aligned TRXRafał Miłecki
After parsing TRX we should skip to the first block placed behind it. Our code was working only with TRX with length not aligned to the blocksize. In other cases (length aligned) it was missing the block places right after TRX. This fixes calculation and simplifies the comment. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-11-21mtd: nand: tango: Use nand_to_mtd() instead of directly accessing chip->mtdBoris Brezillon
The nand_to_mtd() helper is here to hide internal mtd_info <-> nand_chip association and ease future refactors. Make use of this helper instead of directly accessing chip->mtd. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
2016-11-19mtd: remove unneeded initializer in mtd_ooblayout_count_bytes()Masahiro Yamada
There is no need to initialize oobregion since it will be filled by the iterator. This function is called with mtd_ooblayout_free or mtd_ooblayout_ecc for the iterator; both of them calls memset() to clear the oobregion. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: use min_t() to refactor mtd_ooblayout_{get, set}_bytes()Masahiro Yamada
I hope this will make the code a little more readable. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: remove unneeded initializer in mtd_ooblayout_{get, set}_bytes()Masahiro Yamada
There is no need to initialize oobregion and section since they will be filled by mtd_ooblayout_find_region(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: nandsim: fix error checkSudip Mukherjee
debugfs_create_dir() and debugfs_create_file() returns NULL on error or a pointer on success. They do not return the error value with ERR_PTR. So we should not check the return with IS_ERR_OR_NULL, instead we should just check for NULL. Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: tango: Cleanup raw_write and raw_readMarc Gonzalez
Drop raw_write return value (no longer used). Drop raw_read return value (for symmetry). Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: tango: Enable custom page accessorsMarc Gonzalez
Enable NAND_ECC_CUSTOM_PAGE_ACCESS in the tango NFC driver. Fixup the "raw" page accessors to send the proper NAND commands. Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: Support controllers with custom pageMarc Gonzalez
If your controller already sends the required NAND commands when reading or writing a page, then the framework is not supposed to send READ0 and SEQIN/PAGEPROG respectively. Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove debug lines of __FILE__, __LINE__, __func__Masahiro Yamada
Such debug lines might be useful when debugging the driver first, but should be deleted from the upstream code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove unneeded parenthesesMasahiro Yamada
Remove parentheses surrounding the whole right side of an assignment. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: return error code from nand_scan_ident/tail on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: return error code from devm_request_irq() on errorMasahiro Yamada
The devm_request_irq() returns an appropriate error value when it fails. Use it instead of the fixed -ENODEV. While we are here, reword the comment to make it fit in a single line, fixing the misspelling of "initialization". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: use managed devm_irq_request()Masahiro Yamada
Use the managed variant instead of request_irq() and free_irq(). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove unused struct member totalblks, blksperchipMasahiro Yamada
The denali->blksperchip is set, but not referenced any more. The denali->totalblks is used only for calculating denali->blksperchip. Both of them are unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove "Spectra:" prefix from printk stringsMasahiro Yamada
As far as I understood from the Kconfig menu deleted by commit be7f39c5ecf5 ("Staging: delete spectra driver"), the "Spectra" is specific to Intel Moorestown Platform. The Denali NAND controller IP is used for various SoCs such as Altera SOCFPGA, Socionext UniPhier, etc. The platform specific strings are not preferred in this driver. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove detect_partition_feature()Masahiro Yamada
The denali->fwblks is set by detect_partition_feature(), but it is not referenced from anywhere. That means the struct member fwblks and the whole of detect_partition_feature() are unneeded. The comment block implies this function is only for Intel platforms. I found drivers/staging/spectra used to exist, but it was deleted by commit be7f39c5ecf5 ("Staging: delete spectra driver") 5 years ago. So, I guess nobody would need this function any more. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove bogus comment about interrupt handler setupMasahiro Yamada
The interrupt handler is setup in denali_init(), not in denali_drv_init(). This comment is false. Such a comment adds no value, so just delete it instead of move. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove unused struct member denali_nand_info::idxMasahiro Yamada
The struct member "idx" was used as an index for debug_array long ago, but the DEBUG_DENALI feature was removed by commit 7cfffac06ca0 ("nand/denali: use dev_xx debug function to replace nand_dbg_print and some printk"). Since then, this has been only initialized, but never referenced. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-19mtd: nand: denali: remove unneeded <linux/slab.h> includesMasahiro Yamada
The driver calls devm_kzalloc()/devm_kfree() to allocate/free memory. They are declared in <linux/device.h>, not in <linux/slab.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: bcm47xxsflash: use uncached MMIO access for BCM53573Rafał Miłecki
BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and uses this old ChipCommon-based flash access. Early tests resulted in flash corruptions that were tracked down to using cached MMIO for flash read access. Switch to ioremap_nocache conditionally to support BCM53573 and don't break performance on old MIPS devices. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-11-07mtd: nand: socrates: use nand_scan() for nand_scan_ident/tail() comboMasahiro Yamada
For this driver, there is nothing between nand_scan_ident() and nand_scan_tail(). They can be merged into nand_scan(). Also, nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: nandsim: remove unneeded checks for nand_scan_ident/tail()Masahiro Yamada
The nand_scan_ident/tail() never returns a positive value when it fails. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: pxa3xx: return error code of nand_scan_ident() on errorMasahiro Yamada
The nand_scan_ident() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENODEV. (This driver is already doing so for nand_scan_tail().) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: hisi504: return error code of nand_scan_ident() on errorMasahiro Yamada
The nand_scan_ident() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENODEV. (This driver is already doing so for nand_scan_tail().) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: cafe: return error code of nand_scan_ident() on errorMasahiro Yamada
The nand_scan_ident() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. (This driver is already doing so for nand_scan_tail().) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: vf610: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: omap2: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: mxc: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: mediatek: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENODEV. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: lpc32xx: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: fsmc: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: brcmnand: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: atmel: return error code of nand_scan_ident/tail() on errorMasahiro Yamada
The nand_scan_ident/tail() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: plat_nand: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: pasemi: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: orion: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: tmio: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENODEV. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: mpc5121: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: gpio: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: cs553x: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: cmx270: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: ams-delta: return error code of nand_scan() on errorMasahiro Yamada
The nand_scan() returns an appropriate error value when it fails. Use it instead of the fixed error code -ENXIO. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: change return type of nand_get_flash_type() to intMasahiro Yamada
Since commit d1e1f4e42b5d ("mtd: nand: add support for reading ONFI parameters from NAND device"), the returned "type" is never used in nand_scan_ident(). Make nand_get_flash_type() simply return an integer value in order to avoid unnecessary ERR_PTR/PTR_ERR dance. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: denali_dt: replace clk_disable() with clk_disable_unprepare()Masahiro Yamada
The denali_dt_probe() calls clk_disable_unprepare() in the bailout path, whereas denali_dt_remove calls clk_disable(), inconsistently. Replace the latter with clk_disable_unprepare() to make sure to unprepare the clock. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: add tango NAND flash controller supportMarc Gonzalez
This driver supports the NAND Flash controller embedded in recent Tango chips, such as SMP8758 and SMP8759. Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-07mtd: nand: pxa3xx_nand: write exactly one message on probe failureUwe Kleine-König
For some error paths alloc_nand_resource() emitted an error message, for others it didn't. Make it consistently print a message including the error code where it's not constant and drop the hardly helpful additional message printed by the caller of alloc_nand_resource. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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