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2018-03-20mtd: rawnand: avoid setting again the timings to mode 0 after a resetMiquel Raynal1-0/+10
After a nand_reset_data_interface(), both the NAND chip and the NAND controller use timing mode 0. The previously defined data interface for this chip has been saved and is supposed to be restored after that. However, if the saved data interface also refers to timing mode 0, there is no need to re-apply them again. Also, as nand_setup_data_interface() uses ->set/get_features(), it could lead to issues when doing the reset at probe time as the parameter page is not available yet to know if these functions are supported or not. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: check ONFI timings have been acked by the chipMiquel Raynal1-1/+35
Choosing ONFI timings when ->set/get_features() calls are supported by the NAND chip is a matter of reading the chip's ONFI parameter page and telling the chip the chosen mode (between all of the supported ones) with ->set_feature(). Add a check on whether the chip "acked" the timing mode or not. This can be a problem for NAND chips that do not follow entirely the ONFI specification. These chips actually support other modes than "mode 0", but either: 1/ do not update the timing mode register once a timing mode has been selected. or 2/ do not support the TIMING_MODE featured and thus do not require users to change the timing mode at all. These issues will be addressed in another patch that will add the feature to overwrite NAND chips features within the parameter page, from the NAND chip driver. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Han Xu <han.xu@nxp.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: move calls to ->select_chip() in nand_setup_data_interface()Miquel Raynal1-5/+2
After a ->set_features(TIMINGS), the chip is supposed to be working at a new speed. In order for all the transactions to be perperly handled, the NAND controller should also be configured to this same speed. Calling ->setup_data_interface() is not enough and the chip should be de-asserted/re-asserted through calls to ->select_chip(). Prepare the next change in nand_setup_data_interface() where timings will be checked after being applied. Because assertions of the CS pin will be needed from within this function, move the calls to ->select_chip() inside nand_setup_data_interface() for later consistency. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: mxc: remove useless checks in GET/SET_FEATURES functionsMiquel Raynal1-10/+0
All the calls to the chip's hooks ->get/set_features() go through the core's wrappers nand_get/set_features() that already do the necessary checks about feature support. Remove these checks from the mxc's functions. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: handle differently chip/controller errors about timingsMiquel Raynal1-5/+7
Usually, the source of the error when setting/getting features does not matter (if the controller does not support sending the command or if the chip does not support the operation). When it comes to timings, if the controller fails it is an error while if the chip does not support the operation, it can be silently supposed that it already works with the maximum supported timings. Introduce some logic in nand_setup_data_interface() to handle that difference. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: use wrappers to call onfi GET/SET_FEATURESMiquel Raynal3-42/+71
Prepare the fact that some features managed by GET/SET_FEATURES could be overloaded by vendor code. To handle this logic, use new wrappers instead of directly call the ->get/set_features() hooks. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: rename SET/GET FEATURES related functionsMiquel Raynal13-60/+56
SET/GET FEATURES are flagged ONFI-compliant because of their name. This is not accurate as non-ONFI NAND chips support it and use it. Rename the hooks and helpers to remove the "onfi" prefix. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-20mtd: rawnand: rename default ->onfi_get/set_features() implementationsMiquel Raynal1-8/+10
Prepare future work on the ->onfi_get/set_features() hooks by renaming the core's implementation as 'default' ones. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-19mtd: rawnand: makes the Kconfig entry clear when it comes to raw NANDsMiquel Raynal1-3/+3
Files have been moved in the NAND subsystem to reflect the different flavors of NAND devices. Raw/Parallel NAND devices have been moved to a "raw" subdirectory to make the difference with OneNAND and SPI NAND for instance. So adjust the Kconfig entry to clarify things. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-19mtdchar: fix usage of mtd_ooblayout_ecc()OuYang ZhiZhong1-2/+2
Section was not properly computed. The value of OOB region definition is always ECC section 0 information in the OOB area, but we want to get all the ECC bytes information, so we should call mtd_ooblayout_ecc(mtd, section++, &oobregion) until it returns -ERANGE. Fixes: c2b78452a9db ("mtd: use mtd_ooblayout_xxx() helpers where appropriate") Cc: <stable@vger.kernel.org> Signed-off-by: OuYang ZhiZhong <ouyzz@yealink.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-17mtd: rawnand: remove bf5xx_nand driverArnd Bergmann3-894/+0
The blackfin architecture is getting removed, so this driver has become obsolete. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-17mtd: rawnand: vf610_nfc: support ONFI SET/GET_FEATURES commandsStefan Agner1-2/+0
With the move to ->exec_op() the driver should now support ONFI SET/GET_FEATURES commands. Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-17mtd: rawnand: vf610_nfc: remove old hooksStefan Agner1-269/+0
Now that the driver is using ->exec_op(), remove the old hooks. Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-17mtd: rawnand: vf610_nfc: make use of ->exec_op()Stefan Agner1-12/+412
This reworks the driver to make use of ->exec_op() callback. The command sequencer of the VF610 NFC aligns well with the new ops interface. The operations are translated to a NFC command code while filling the necessary registers. Instead of using the special status and read ID command codes (which require to read status/ID from special registers instead of the regular data area) the driver now now uses the main data buffer for all commands. This simplifies the driver as no special casing is needed. For control data (status byte, id bytes and parameter page) the driver needs to reverse byte order for little endian CPUs since the controller seems to store the bytes in big endian order in the data buffer. The current state seems to pass MTD tests on a Colibri VF61. Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-15mtd: Unconditionally update ->fail_addr and ->addr in part_erase()Boris Brezillon16-30/+4
->fail_addr and ->addr can be updated no matter the result of parent->_erase(), we just need to remove the code doing the same thing in mtd_erase_callback() to avoid adjusting those fields twice. Note that this can be done because all MTD users have been converted to not pass an erase_info->callback() and are thus only taking the ->addr_fail and ->addr fields into account after part_erase() has returned. While we're at it, get rid of the erase_info->mtd field which was only needed to let mtd_erase_callback() get the partition device back. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Richard Weinberger <richard@nod.at>
2018-03-15mtd: Stop assuming mtd_erase() is asynchronousBoris Brezillon17-337/+47
None of the mtd->_erase() implementations work in an asynchronous manner, so let's simplify MTD users that call mtd_erase(). All they need to do is check the value returned by mtd_erase() and assume that != 0 means failure. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Richard Weinberger <richard@nod.at>
2018-03-15mtd: Initialize ->fail_addr early in mtd_erase()Boris Brezillon1-1/+2
mtd_erase() can return an error before ->fail_addr is initialized to MTD_FAIL_ADDR_UNKNOWN. Move this initialization at the very beginning of the function. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Richard Weinberger <richard@nod.at>
2018-03-15mtd: st_spi_fsm: use %*ph to print small bufferAntonio Cardace1-2/+1
Use %*ph format to print small buffer as hex string. Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Antonio Cardace <anto.cardace@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-03-15mtd: block2mtd: remove redundant initialization of 'bdev'Colin Ian King1-1/+1
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 Yamada1-20/+0
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 Patel12-72/+75
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 Brezillon12-3/+4
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 Brezillon4-8/+0
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 Bergmann4-2119/+1
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 Assche1-3/+3
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 Brezillon4-2117/+1
nand/next Remove the pxa3xx_nand driver (replaced by marvell_nand).
2018-03-02mtd: nand: remove useless fields from pxa3xx NAND platform dataMiquel Raynal1-2/+1
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 Raynal3-2117/+0
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 Raynal1-51/+99
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 Raynal1-58/+42
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 Brezillon4-0/+380
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 Brezillon94-647/+651
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 Brezillon2-0/+5
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 Brezillon6-9/+9
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 Brezillon1-1/+1
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 Brezillon3-6/+5
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 Brezillon15-31/+2
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 Yoshitake1-0/+26
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 Khoroshilov1-1/+6
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 Khoroshilov1-10/+10
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 Khoroshilov1-10/+8
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 Agner1-15/+0
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 Raynal1-10/+29
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 Hauer1-51/+0
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 Hauer1-36/+0
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 Hauer1-0/+47
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 Hauer1-17/+60
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 Hauer1-9/+77
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 Hauer1-4/+4
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 Hauer1-0/+42
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>
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