summaryrefslogtreecommitdiff
path: root/drivers/mtd
AgeCommit message (Collapse)Author
2018-03-15mtd: block2mtd: remove redundant initialization of 'bdev'Colin Ian King
Pointer bdev is being initialized however this value is never read as bdev is assigned an updated value from the returned call to blkdev_get_by_path. Remove the redundant assignment. Cleans up clang warning: drivers/mtd/devices/block2mtd.c:228:23: warning: Value stored to 'bdev' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-15mtd: rawnand: remove STANDALONE compile mode of nand_eccMasahiro Yamada
This file can not be built independently any more. We would have to bring in more to resolve mtd_to_nand(mtd)->ecc.size, for example. It is difficult to notice a breakage since nobody compiles this mode. It is not worth fixing or maintaining in my opinion. Remove. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-15mtd: rawnand: Replace printk() with appropriate pr_*() macroShreeya Patel
Using pr_<loglevel>() is more concise than printk(KERN_<LOGLEVEL>). Replace printks having a log level with the appropriate pr_*() macros. Define pr_fmt() and remove other additional macros from the replaced printks. Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-15mtd: Move onenand code base to drivers/mtd/nand/onenandBoris Brezillon
Move onenand code base to the drivers/mtd/nand directory in the hope that someday someone will patch it to use the generic NAND helpers. If it never happens, at least we'll have all NAND related support in a single directory and not spread over the drivers/mtd/ directory. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-15mtd: onenand: Get rid of comments giving the file path inside the file itselfBoris Brezillon
Some files add a comment giving the path of the file inside the Linux tree, which is pretty useless since the reader had to find the file to open it. Getting rid of these comments will also allow us to easily move these files around when needed. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-12Merge tag 'pxa-for-4.17' of https://github.com/rjarzmik/linux into next/socArnd Bergmann
Pull "This is the pxa changes for v4.17 cycle" from Robert Jarzmik: - minor changes for property API - clock API fix for ULPI driver warning It exceptionally contains a merge from the mtd tree from Boris to prevent any merge conflicts in the PXA tree. * tag 'pxa-for-4.17' of https://github.com/rjarzmik/linux: ARM: pxa/raumfeld: use PROPERTY_ENTRY_U32() directly ARM: pxa: ulpi: fix ulpi timeout and slowpath warn ARM: pxa: cm-x300: remove inline directive ARM: pxa: fix static checker warning in pxa3xx-ulpi MAINTAINERS: remove entry for deleted pxa3xx_nand driver arm: dts: pxa: use reworked NAND controller driver dt-bindings: mtd: remove pxa3xx NAND controller documentation mtd: nand: remove useless fields from pxa3xx NAND platform data mtd: nand: remove deprecated pxa3xx_nand driver mtd: nand: use Marvell reworked NAND controller driver with all platforms
2018-03-08block: Use blk_queue_flag_*() in drivers instead of queue_flag_*()Bart Van Assche
This patch has been generated as follows: for verb in set_unlocked clear_unlocked set clear; do replace-in-files queue_flag_${verb} blk_queue_flag_${verb%_unlocked} \ $(git grep -lw queue_flag_${verb} drivers block/bsg*) done Except for protecting all queue flag changes with the queue lock this patch does not change any functionality. Cc: Mike Snitzer <snitzer@redhat.com> Cc: Shaohua Li <shli@fb.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Ming Lei <ming.lei@redhat.com> Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-02Merge tag 'nand/pxa3xx-removal' of git://git.infradead.org/linux-mtd into ↵Boris Brezillon
nand/next Remove the pxa3xx_nand driver (replaced by marvell_nand).
2018-03-02mtd: nand: remove useless fields from pxa3xx NAND platform dataMiquel Raynal
The "enable arbiter" bit is available only for pxa3xx based platforms but it was experimentally shown that even if this bit is reserved, some Marvell platforms (64-bit) actually need it to be set. The driver always set this bit regardless of this property, which is harmless. Then this property is not needed. The "num_cs" field is always 1 and for a good reason, the old driver (pxa3xx_nand.c) could only handle one. The new driver that replaces it (marvell_nand.c) can handle more, but better use device tree for such description. As there is only one available chip select, there is no need for an array of partitions neither an array of partition numbers. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-23mtd: nand: remove deprecated pxa3xx_nand driverMiquel Raynal
All board files and defconfig files have been moved to use the new marvell_nand driver instead of pxa3xx_nand, so we can safely remove this file now. People should use the new driver which is supposed to behave exactly like the old one. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-17mtd: nand: fsmc: use ->exec_op()Miquel Raynal
Remove the deprecated ->cmd_ctrl() implementation to use ->exec_op() in the fsmc_nand driver. Implement the ->select_chip() hook to avoid having to support the hack from the core that send a NAND_CMD_NONE with NAND_NCE to signal a deassertion of nCE. Also get rid of the last references to ->IO_ADDR_[R|W] that are not used anymore. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-17mtd: nand: fsmc: get rid of IO_ADDR_[R|W]Miquel Raynal
Remove the use of IO_ADDR_[R|W] in the fsmc_nand driver. Instead, use a pointer to the control registers to avoid doing several arithmetic operations (including a multiplication) each time a control register is read or written. All references to IO_ADDR_[R|W] are not entirely removed from the driver as, at this time, these values are needed by the NAND core in the default ->read/write_byte/word() hooks. These references will be entirely removed when switching to ->exec_op(), that does not make use of these hooks anymore. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: Add core infrastructure to deal with NAND devicesBoris Brezillon
Add an intermediate layer to abstract NAND device interface so that some logic can be shared between SPI NANDs, parallel/raw NANDs, OneNANDs, ... Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: move raw NAND related code to the raw/ subdirBoris Brezillon
As part of the process of sharing more code between different NAND based devices, we need to move all raw NAND related code to the raw/ subdirectory. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: Add missing copyright informationBoris Brezillon
Some drivers have been derived from others which have then been removed from the source tree. When this is the case, add mention the copyright of the source file(s) they've been derived from. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: State when references to other drivers are no longer validBoris Brezillon
A lot of NAND drivers have been derived from other old NAND drivers which have since then been removed from the Linux tree. When this is the case, specify when the file the header is referring to has been removed so that people can find the original implementation more easily. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: ams-delta: Fix path to toto.c source fileBoris Brezillon
Last known location of toto.c was drivers/mtd/nand/toto.c. Fix the path so that one can use git log to find when the driver was deleted and possibly checkout the source code. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: Stop using full path when referring to files placed in the same dirBoris Brezillon
Some NAND drivers are derived from other NAND drivers and state it in their license header. Using full path to point to other driver files sitting in the same directory is not such a good idea, since the NAND drivers might be moved to a different directory at some point, and we don't to patch all license/copyright headers everytime this happen. The only exception where we keep full path is when the referred source files no longer exist in the tree. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-16mtd: nand: Get rid of comments giving the file path inside the file itselfBoris Brezillon
Some files add a comment giving the path of the file inside the Linux tree, which is pretty useless since the reader had to find the file to open it. Getting rid of these comments will also allow us to easily move these files around when needed. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-14mtd: nand: toshiba: Retrieve ECC requirements from extended IDKOBAYASHI Yoshitake
This patch enables support to read the ECC strength and size from the NAND flash using Toshiba Memory SLC NAND extended-ID. This patch is based on the information of the 6th ID byte of the Toshiba Memory SLC NAND. Signed-off-by: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: vf610: check mtd_device_register() return codeAlexey Khoroshilov
vf610_nfc_probe() misses error handling of mtd_device_register(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: vf610: improve readability of error labelAlexey Khoroshilov
Use clearer error labels as Boris Brezillon suggested. Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: vf610: remove the unnecessary of_node_put()Alexey Khoroshilov
Calling of_node_put() in vf610_nfc_probe() is wrong because nothing in this code retains a reference to the DT node. Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: vf610_nfc: remove unused functionStefan Agner
The function count_written_bits has been replaced by the generic nand_check_erased_ecc_chunk() function with commit 48c25cf44118 ("mtd: nand: vf610_nfc: use nand_check_erased_ecc_chunk() helper"). Remove the unused function. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: add ->setup_data_interface() support for Marvell NFCv1Miquel Raynal
First generation of Marvell NAND flash controllers (eg. embedded in PXA boards) did not make use of the NAND core hook ->setup_data_interface() to setup controller timings. Add support for it. Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: remove now unused codeSascha Hauer
Since we now have our own read_page/write_page functions mxc_nand_command() will no longer be called with NAND_CMD_READ0, NAND_CMD_READOOB, NAND_CMD_SEQIN and NAND_CMD_PAGEPROG. Remove the code handling these commands. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: Drop now unnecessary functionsSascha Hauer
Since we have our own read_page/write_page functions correct_data and calculate are no longer needed. Remove them. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: Add own write_pageSascha Hauer
Now that we have our own read_page function add a write_page function for consistency aswell. This can be a lot easier than the generic function since we do not have to iterate over subpages but can write the whole page at once. Also add write_page_raw and write_oob for proper raw and oob write support. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: Fix failed/corrected values for v1 controllersSascha Hauer
The v1 controller code has several flaws: - We do not forward the number of corrected bitflips to the upper layers - For 2k page NAND chips only the status results from the fourth subpage read are evaluated, so ECC failures in the other subpages remain uncovered - When there are uncorrectable errors we have to increase the statistics counter, but still have to return successfully. Currently we return an error This patch fixes this by introducing a v1 specific read_page function. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: Fix failed/corrected values for v2/v3 controllersSascha Hauer
Currently nand_read_page_hwecc() from nand_base calls mxc_nand_correct_data_v2_v3() for each subpage, but in this function we return the corrected/failed results for the whole page instead of a single subpage. On a 2k page size Nand this leads to results which are 4 times too high. The whole ecc.calculate/ecc.correct mechanism used by nand_read_page_hwecc() is not suitable for devices which correct the data in hardware, so fix this by using a driver specific read_page function which does the right thing. Also add read_page_raw and read_oob For proper raw and oob read support. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: Add buffer argument to copy_spareSascha Hauer
With following patches we will have to copy the spare data to/from other buffers, so add the buffer as argument to copy_spare(). Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: Add function to control hardware ECCSascha Hauer
For proper raw read/write support need to be able to control the hardware ECC engine. Add a function to enable/disable it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: mxc: reorder functions to avoid forward declarationsSascha Hauer
We'll call copy_spare() and mxc_do_addr_cycle() from another place during the next patches, so move functions up to avoid forward declarations. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: get rid of the mtd_add_device_partitions()Rafał Miłecki
This simplifies code a bit by: 1) Avoiding an extra (tiny) function 2) Checking for amount of parsed (found) partitions just once 3) Avoiding clearing/filling struct mtd_partitions manually With this commit proper functions are called directly from the mtd_device_parse_register(). It doesn't need to use minor tricks like memsetting struct to 0 to trigger an expected mtd_add_device_partitions() behavior. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: move code adding master MTD out of mtd_add_device_partitions()Rafał Miłecki
This change is a small cleanup of mtd_device_parse_register(). When using MTD_PARTITIONED_MASTER it makes sure a master MTD is registered before dealing with partitions. The advantage of this is not mixing code handling master MTD with code handling partitions. This commit doesn't change any behavior except from a slightly different failure code path. The new code may need to call del_mtd_device when something goes wrong. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: Make sure the device supports erase operations in mtd_erase()Boris Brezillon
Some devices do not implement ->_erase() or have an invalid ->erasesize value. In this case, mtd_erase() should return -ENOTSUPP. Note that the test is not done on the MTD_NO_ERASE flag because this flag means 'erasing a block before writing to it is unnecessary', not 'the erase operation is not supported'. Actually, some drivers are setting the MTD_NO_ERASE flag but still implementing the ->_erase() hook and setting a valid ->erasesize value. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: MTD_NAND_MARVELL should depend on HAS_DMAGeert Uytterhoeven
If NO_DMA=y: ERROR: "bad_dma_ops" [drivers/mtd/nand/marvell_nand.ko] undefined! Add a dependency on HAS_DMA to fix this. Fixes: 02f26ecf8c772751 ("mtd: nand: add reworked Marvell NAND controller driver") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-02-12mtd: nand: vf610: set correct ooblayoutStefan Agner
With commit 3cf32d180227 ("mtd: nand: vf610: switch to mtd_ooblayout_ops") the driver started to use the NAND cores default large page ooblayout. However, shortly after commit 6a623e076944 ("mtd: nand: add ooblayout for old hamming layout") changed the default layout to the old hamming layout, which is not what vf610_nfc is using. Specify the default large page layout explicitly. Fixes: 6a623e076944 ("mtd: nand: add ooblayout for old hamming layout") Cc: <stable@vger.kernel.org> # v4.12+ Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-01-31Merge tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds
Pull dma mapping updates from Christoph Hellwig: "Except for a runtime warning fix from Christian this is all about consolidation of the generic no-IOMMU code, a well as the glue code for swiotlb. All the code is based on the x86 implementation with hooks to allow all architectures that aren't cache coherent to use it. The x86 conversion itself has been deferred because the x86 maintainers were a little busy in the last months" * tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping: (57 commits) MAINTAINERS: add the iommu list for swiotlb and xen-swiotlb arm64: use swiotlb_alloc and swiotlb_free arm64: replace ZONE_DMA with ZONE_DMA32 mips: use swiotlb_{alloc,free} mips/netlogic: remove swiotlb support tile: use generic swiotlb_ops tile: replace ZONE_DMA with ZONE_DMA32 unicore32: use generic swiotlb_ops ia64: remove an ifdef around the content of pci-dma.c ia64: clean up swiotlb support ia64: use generic swiotlb_ops ia64: replace ZONE_DMA with ZONE_DMA32 swiotlb: remove various exports swiotlb: refactor coherent buffer allocation swiotlb: refactor coherent buffer freeing swiotlb: wire up ->dma_supported in swiotlb_dma_ops swiotlb: add common swiotlb_map_ops swiotlb: rename swiotlb_free to swiotlb_exit x86: rename swiotlb_dma_ops powerpc: rename swiotlb_dma_ops ...
2018-01-29Merge tag 'upstream-4.16-rc1' of git://git.infradead.org/linux-ubifsLinus Torvalds
Pull UBI/UBIFS updates from Richard Weinberger: - use the new fscrypt APIs - a fix for a Fastmap issue - other minor bug fixes * tag 'upstream-4.16-rc1' of git://git.infradead.org/linux-ubifs: ubi: block: Fix locking for idr_alloc/idr_remove mtd: ubi: wl: Fix error return code in ubi_wl_init() ubi: Fix copy/paste error in function documentation ubi: Fastmap: Fix typo ubifs: remove error message in ubifs_xattr_get ubi: fastmap: Erase outdated anchor PEBs during attach ubifs: switch to fscrypt_prepare_setattr() ubifs: switch to fscrypt_prepare_lookup() ubifs: switch to fscrypt_prepare_rename() ubifs: switch to fscrypt_prepare_link() ubifs: switch to fscrypt_file_open() ubi: fastmap: Clean up the initialization of pointer p ubi: fastmap: Use kmem_cache_free to deallocate memory ubi: Fix race condition between ubi volume creation and udev mtd: ubi: Use 'max_bad_blocks' to compute bad_peb_limit if available ubifs: Fix uninitialized variable in search_dh_cookie()
2018-01-29Merge tag 'mtd/for-4.16' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from Boris Brezillon: "MTD core changes: - Rework core functions to avoid duplicating generic checks in NAND/OneNAND sub-layers - Update the MAINTAINERS entry to reflect the fact that MTD maintainers now use a single git tree MTD driver changes: - CFI: use macros instead of inline functions to limit stack usage and make KASAN happy NAND core changes: - Fix NAND_CMD_NONE handling in nand_command[_lp]() hooks - Introduce the ->exec_op() infrastructure - Rework NAND buffers handling - Fix ECC requirements for K9F4G08U0D - Fix nand_do_read_oob() to return the number of bitflips - Mark K9F1G08U0E as not supporting subpage writes NAND driver changes: - MTK: Rework the driver to support new IP versions - OMAP OneNAND: Full rework to use new APIs (libgpio, dmaengine) and fix DT support - Marvell: Add a new driver to replace the pxa3xx one SPI NOR core changes: - Add support to new ISSI and Cypress/Spansion memory parts. - Fix support of Micron memories by checking error bits in the FSR. - Fix update of block-protection bits by reading back the SR. - Restore the internal state of the SPI flash memory when removing the device. SPI NOR driver changes: - Maintenance for Freescale, Intel and Metiatek drivers. - Add support of the direct access mode for the Cadence QSPI controller" * tag 'mtd/for-4.16' of git://git.infradead.org/linux-mtd: (93 commits) mtd: nand: sunxi: Fix ECC strength choice mtd: nand: gpmi: Fix subpage reads mtd: nand: Fix build issues due to an anonymous union mtd: nand: marvell: Fix missing memory allocation modifier mtd: nand: marvell: remove redundant variable 'oob_len' mtd: nand: marvell: fix spelling mistake: "suceed"-> "succeed" mtd: onenand: omap2: Remove redundant dev_err call in omap2_onenand_probe() mtd: Remove duplicate checks on mtd_oob_ops parameter mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing mtd: mtdpart: Make ECC stat handling consistent mtd: onenand: omap2: print resource using %pR format string mtd: mtk-nor: modify functions' name more generally mtd: onenand: samsung: remove incorrect __iomem annotation MAINTAINERS: Add entry for Marvell NAND controller driver ARM: OMAP2+: Remove gpmc-onenand mtd: onenand: omap2: Configure driver from DT mtd: onenand: omap2: Decouple DMA enabling from INT pin availability mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific mtd: onenand: omap2: Convert to use dmaengine for memcpy mtd: onenand: omap2: Unify OMAP2 and OMAP3 DMA implementation ...
2018-01-29Merge tag 'nand/for-4.16' of git://git.infradead.org/linux-mtd into mtd/nextBoris Brezillon
Pull NAND changes from Boris Brezillon: " Core changes: * Fix NAND_CMD_NONE handling in nand_command[_lp]() hooks * Introduce the ->exec_op() infrastructure * Rework NAND buffers handling * Fix ECC requirements for K9F4G08U0D * Fix nand_do_read_oob() to return the number of bitflips * Mark K9F1G08U0E as not supporting subpage writes Driver changes: * MTK: Rework the driver to support new IP versions * OMAP OneNAND: Full rework to use new APIs (libgpio, dmaengine) and fix DT support * Marvell: Add a new driver to replace the pxa3xx one "
2018-01-29Merge tag 'spi-nor/for-4.16' of git://git.infradead.org/linux-mtd into mtd/nextBoris Brezillon
Pull spi-nor changes from Cyrille Pitchen: " This pull-request contains the following notable changes: Core changes: * Add support to new ISSI and Cypress/Spansion memory parts. * Fix support of Micron memories by checking error bits in the FSR. * Fix update of block-protection bits by reading back the SR. * Restore the internal state of the SPI flash memory when removing the device. Driver changes: * Maintenance for Freescale, Intel and Metiatek drivers. * Add support of the direct access mode for the Cadence QSPI controller. "
2018-01-25mtd: nand: sunxi: Fix ECC strength choiceMiquel Raynal
When the requested ECC strength does not exactly match the strengths supported by the ECC engine, the driver is selecting the closest strength meeting the 'selected_strength > requested_strength' constraint. Fix the fact that, in this particular case, ecc->strength value was not updated to match the 'selected_strength'. For instance, one can encounter this issue when no ECC requirement is filled in the device tree while the NAND chip minimum requirement is not a strength/step_size combo natively supported by the ECC engine. Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support") Cc: <stable@vger.kernel.org> Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-25mtd: nand: gpmi: Fix subpage readsBoris Brezillon
Commit 25f815f66a14 ("mtd: nand: force drivers to explicitly send READ/PROG commands") added a call to nand_read_page_op() in gpmi_ecc_read_page(), which means this function now sends a READ0 command and place the data pointer at the beginning of the page. This logic is breaking gpmi_ecc_read_subpage() which was calling gpmi_ecc_read_page() and expected it to only retrieve the data without sending the READ0 command. Create a gpmi_ecc_read_page_data() helper which only does the data retrieval and ECC correction steps and implement gpmi_ecc_read_page() as a wrapper that calls nand_read_page_op()+gpmi_ecc_read_page_data(). This way, gpmi_ecc_read_subpage() can call gpmi_ecc_read_page_data() which restores the logic we had before commit 25f815f66a14 ("mtd: nand: force drivers to explicitly send READ/PROG commands"). Fixes: 25f815f66a14 ("mtd: nand: force drivers to explicitly send READ/PROG commands") Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Miquel Raynal <miquel.raynal@free-electrons.com> Acked-by: Han Xu <han.xu@nxp.com>
2018-01-20mtd: nand: Fix build issues due to an anonymous unionMiquel Raynal
GCC-4.4.4 raises errors when assigning a parameter in an anonymous union, leading to this kind of failure: drivers/mtd/nand/marvell_nand.c:1936: warning: missing braces around initializer warning: (near initialization for '(anonymous)[1].<anonymous>') error: unknown field 'data' specified in initializer error: unknown field 'addr' specified in initializer Work around the situation by naming these unions. Fixes: 8878b126df76 ("mtd: nand: add ->exec_op() implementation") Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Tested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-20mtd: nand: marvell: Fix missing memory allocation modifierMiquel Raynal
The function marvell_nfc_init_dma() allocates a DMA buffer without the GFP_KERNEL modifier, that triggers this warning: "marvell_nfc_init_dma() error: no modifiers for allocation." Fix this by using (GFP_KERNEL | GFP_DMA) instead of only GFP_DMA as the probe happens in non-interrupt context. Fixes: 02f26ecf8c77 ("mtd: nand: add reworked Marvell NAND controller driver") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-19mtd: nand: marvell: remove redundant variable 'oob_len'Colin Ian King
Variable oob_len is assigned and never read, hence it is redundant and can be removed. Cleans up clang warnings: drivers/mtd/nand/marvell_nand.c:1356:6: warning: Value stored to 'oob_len' during its initialization is never read drivers/mtd/nand/marvell_nand.c:1369:4: warning: Value stored to 'oob_len' is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-19mtd: nand: marvell: fix spelling mistake: "suceed"-> "succeed"Colin Ian King
Trivial fix to spelling mistakes in dev_err error message text. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-19mtd: onenand: omap2: Remove redundant dev_err call in omap2_onenand_probe()Wei Yongjun
There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>