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path: root/drivers/mtd
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2019-03-13MTD: mxs_nand_spl: Redo the way nand_init initializesAdam Ford
Currently the spl system calls nand_init which does nothing. It isn't until an attempt to load from NAND that it gets initialized. Subsequent attempts to load just skip the initialization because NAND is already initialized. This moves the contents of mxs_nand_init to nand_init. In the event of an error, it clears the number of nand chips found. Any attempts to use nand will check if there are nand chips available instead of actually doing the initialization at that time. If there are none, it will return an error to the higher level calls. Signed-off-by: Adam Ford <aford173@gmail.com>
2019-02-15MTD: nand: mxs_nand: Allow driver to auto setup ECC in SPLAdam Ford
The initialization of the NAND in SPL hard-coded ecc.bytes, ecc.size, and ecc.strength which may work for some NAND parts, but it not appropriate for others. With the pending patch "mxs_nand: Fix BCH read timeout error on boards requiring ECC" the driver can auto configure the ECC when these entries are blank. This patch has been tested in NAND flash with oob 64 and oob 128. Signed-off-by: Adam Ford <aford173@gmail.com> Tested-by: Jörg Krause <joerg.krause@embedded.rocks> Acked-by: Tim Harvey <tharvey@gateworks.com> Tested-by: Tim Harvey <tharvey@gateworks.com>
2019-02-15MTD: NAND: mxs_nand_init_dma: Make mxs_nand_init_dma staticAdam Ford
mxs_nand_init_dma is only referenced from mxs_nand.c. It's not referenced in any headers or outside code, so this patch defines it as static. Signed-off-by: Adam Ford <aford173@gmail.com>
2019-02-15MTD: mxs_nand: Fix BCH read timeout error on boards requiring ECCAdam Ford
The LogicPD board uses a Micron Flash with ECC. To boot this from SPL, the ECC needs to be correctly configured or the BCH engine times out. Signed-off-by: Adam Ford <aford173@gmail.com> Acked-by: Stefan Agner <stefan.agner@toradex.com> Tested-by: Jörg Krause <joerg.krause@embedded.rocks> Acked-by: Tim Harvey <tharvey@gateworks.com> Tested-by: Tim Harvey <tharvey@gateworks.com>
2019-02-07mtd: spi: Add lightweight SPI flash stack for SPLVignesh R
Add a tiny SPI flash stack that just supports reading data/images from SPI flash. This is useful for boards that have SPL size constraints and would need to use SPI flash framework just to read images/data from flash. There is approximately 1.5 to 2KB savings with this. Based on prior work of reducing spi flash id table by Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: Remove unused filesVignesh R
spi_flash and spi_flash_ids are no longer needed after SPI NOR migration. Remove them. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: Switch to new SPI NOR frameworkVignesh R
Switch spi_flash_* interfaces to call into new SPI NOR framework via MTD layer. Fix up sf_dataflash to work in legacy way. And update sandbox to use new interfaces/definitions Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: sf_probe: Add "jedec, spi-nor" compatible stringVignesh R
Linux uses "jedec,spi-nor" as compatible string for JEDEC compatible SPI Flash device nodes. Therefore make U-Boot also to look for the same compatible string so that we can use Linux DTS files as is. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: spi-nor-core: Add back U-Boot specific featuresVignesh R
For legacy reasons, we will have to keep around U-Boot specific SPI_FLASH_BAR and SPI_TX_BYTE. Add them back to the new framework Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: spi-nor-core: Add SFDP supportVignesh R
Sync Serial Flash Discoverable Parameters (SFDP) parsing support from Linux. This allows auto detection and configuration of Flash parameters. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: spi-nor-core: Add 4 Byte addressing supportVignesh R
Sync changes from Linux SPI NOR framework to add 4 byte addressing support. This is required in order to support flashes like MT35x that no longer support legacy Bank Address Register(BAR) way of accessing >16MB region. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: spi-nor-core: Add SPI MEM supportVignesh R
Many SPI controllers have special MMIO interfaces which provide accelerated read/write access but require knowledge of flash parameters to make use of it. Recent spi-mem layer provides a way to support such controllers. Therefore, add spi-mem support to spi-nor-core as a way to support SPI controllers with MMIO interface. SPI MEM layer takes care of translating spi_mem_ops to spi_xfer()s in case of legacy SPI controllers. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-07mtd: spi: Port SPI NOR framework from LinuxVignesh R
Current U-Boot SPI NOR support (sf layer) is quite outdated as it does not support 4 byte addressing opcodes, SFDP table parsing and different types of quad mode enable sequences. Many newer flashes no longer support BANK registers used by sf layer to a access >16MB of flash address space. So, sync SPI NOR framework from Linux v4.19 that supports all the above features. Start with basic sync up that brings in basic framework subsequent commits will bring in more features. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-01-28MTD: nand: mxs_nand_spl: Fix empty function pointer for BBTAdam Ford
The initialization function calls a nand_chip.scan_bbt(mtd) but scan_bbt is never initialized resulting in an undefined function pointer. This will direct the function pointer to nand_default_bbt defined in the same file. Signed-off-by: Adam Ford <aford173@gmail.com> Acked-by: Stefan Agner <stefan.agner@toradex.com>
2019-01-24mtd: nand: arasan_nfc: Add support for nand multi chip selectT Karthik Reddy
This patch adds support for nand multi chip select. Also adding CONFIG_SYS_NAND_MAX_CHIPS to Kconfig to specify maximum number of nand chips. Signed-off-by: Tummala Karthik Reddy <t.karthik.reddy@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-01-21ARM: at91: Convert SPL_GENERATE_ATMEL_PMECC_HEADER to KconfigDerald D. Woods
This commit converts the following items to Kconfig: CONFIG_ATMEL_NAND_HWECC CONFIG_ATMEL_NAND_HW_PMECC CONFIG_PMECC_CAP CONFIG_PMECC_SECTOR_SIZE CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER [PMECC References] https://www.at91.com/linux4sam/bin/view/Linux4SAM/PmeccConfigure https://www.at91.com/linux4sam/bin/view/Linux4SAM/AT91Bootstrap [Mailing List Thread] https://lists.denx.de/pipermail/u-boot/2018-December/350666.html Fixes: 5541543f ("configs: at91: Remove CONFIG_SYS_EXTRA_OPTIONS assignment") [trini: Make the migration be size neutral and possibly not fix the above in all cases] Reported-by: Daniel Evans <photonthunder@gmail.com> Cc: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Derald D. Woods <woods.technical@gmail.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2019-01-16mtd: nand: raw: allow to disable unneeded ECC layoutsStefan Agner
Each ECC layout consumes about 2984 bytes in the .data section. Allow to disable the default ECC layouts if a driver is known to provide its own ECC layout. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-01-02Merge branch 'master' of git://git.denx.de/u-boot-spiTom Rini
2019-01-02mtd: nand: raw: Add Hynix H27UBG8T2BTR id tableNikolai Zhubr
This patch adds Hynix H27UBG8T2BTR id table as part of raw nand, these chips were available in some A20-olinuxino-micro boards. Signed-off-by: Nikolai Zhubr <n-a-zhubr@yandex.ru> [jagan: add proper commit message] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-01-01Merge tag 'u-boot-imx-20190101' of git://www.denx.de/git/u-boot-imxTom Rini
imx for 2019.01 - introduce support for i.MX8M - fix size limit for Vhybrid / pico boards - several board fixes - w1 driver for MX2x / MX5x
2019-01-01nand: vybrid: Extend the vf610 NFC NAND driver to support device tree (and DM)Lukasz Majewski
This commit adds support for device tree and enumeration via device model for the Vybrid's NFC NAND driver. Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-01-01Kconfig: Add entry for VF610 NAND NFC device tree aware driverLukasz Majewski
This commit provides code to add proper entry to Kconfig to enable support for VF610 device tree aware driver. Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-01-01nand: vybrid: Use calloc() instead of malloc() to allocate struct nfcLukasz Majewski
Without this change it is possible that Vybrid's NFC driver malloc() call will obtain some memory used (and correctly free'd) by some previous driver (in this case pinctrl for Vybrid). As a result some fields of struct nfc - in out case mtd->_get_device - are "pre initialized" with some random values. On the latter stage of booting, when e.g. somebody calls 'mtdparts default' the "data abort" is observed when __get_mtd_device() function is called. The mtd->_get_device pointer is not NULL and wrong value is referenced. Signed-off-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Stefan Agner <stefan.agner@toradex.com>
2018-12-29mtd: rawnand: denali: fix a race condition when DMA is kickedMasahiro Yamada
Based on Linux commit cf51e4b9c34407bf0c3d9b582b7837e047e1df47 Add the register read-back, commenting why this is necessary. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-29mtd: rawnand: denali: optimize timing parameters for data interfaceMasahiro Yamada
Based on Linux commit 1dfac31a5a63ac04a9b5fbc3f5105a586560f191 This commit improves the ->setup_data_interface() hook. The denali_setup_data_interface() needs the frequency of clk_x and the ratio of clk_x / clk. The latter is currently hardcoded in the driver, like this: #define DENALI_CLK_X_MULT 6 The IP datasheet requires that clk_x / clk be 4, 5, or 6. I just chose 6 because it is the most defensive value, but it is not optimal. By getting the clock rate of both "clk" and "clk_x", the driver can compute the timing values more precisely. To not break the existing platforms, the fallback value, 50 MHz is provided. It is true for all upstreamed platforms. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-29mtd: rawnand: denali_dt: add more clocks based on IP datasheetMasahiro Yamada
Based on Linux commit 6f1fe97bec349a1fd6c5a8c7c5998d759fe721d5 Currently, denali_dt.c requires a single anonymous clock, but the Denali User's Guide requires three clocks for this IP: - clk: controller core clock - clk_x: bus interface clock - ecc_clk: clock at which ECC circuitry is run This commit supports these named clocks to represent the real hardware. For the backward compatibility, the driver still accepts a single clock just as before. The clk_x_rate is taken from the clock driver again if the named clock "clk_x" is available. This will happen only for future DT, hence the existing DT files are not affected. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-05Merge branch 'master' of git://git.denx.de/u-boot-spiTom Rini
- Various MTD fixes from Boris - Zap various unused / legacy paths. - pxa3xx NAND update from Miquel Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-06mtd: sf: Make sf_mtd.c more robustBoris Brezillon
SPI flash based MTD devs can be registered/unregistered at any time through the sf probe command or the spi_flash_free() function. This commit does not try to fix the root cause as it would probably require rewriting most of the code and have an mtd_info object instance per spi_flash object (not to mention that the the spi-flash layer is likely to be replaced by a spi-nor layer ported from Linux). Instead, we try to be as safe as can be by checking the code returned by del_mtd_device() and complain loudly when there's nothing we can do about the deregistration failure. When that happens we also reset sf_mtd_info.priv to NULL, and check for NULL pointer in the mtd hooks so that -ENODEV is returned instead of hitting a NULL pointer dereference exception when the MTD instance is later accessed by a user. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: sf: Unregister the MTD device prior to removing the spi_flash objBoris Brezillon
The DM implementation of spi_flash_free() does not unregister the MTD device before removing the spi dev object. This leads to a use-after-free bug when the MTD device is later accessed by a MTD user (observed when attaching the device to UBI after env_sf_load() has called spi_flash_free()). Implement ->remove() and call spi_flash_mtd_unregister() from there. Fixes: 9fe6d8716e09 ("mtd, spi: Add MTD layer driver") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-12-06mtd: Don't stop MTD partition creation when it fails on one deviceBoris Brezillon
MTD partition creation code is a bit tricky. It tries to figure out when things have changed (either MTD dev list or mtdparts/mtdids vars) and when that happens it first deletes all the partitions that had been previously created and then creates the new ones based on the new mtdparts/mtdids values. But before deleting the old partitions, it ensures that none of the currently registered parts are being used and bails out when that's not the case. So, we end up in a situation where, if at least one MTD dev has one of its partitions used by someone (UBI for instance), the partitions update logic no longer works for other devs. Rework the code to relax the logic and allow updates of MTD parts on devices that are not being used (we still refuse to updates parts on devices who have at least one of their partitions used by someone). Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Make sure we don't parse MTD partitions belonging to another devBoris Brezillon
The mtdparts variable might contain partition definitions for several MTD devices. Each partition layout is separated by a ';', so let's make sure we don't pick a wrong name when mtdparts is malformed. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Make sure the name passed in mtdparts fits in mtd_name[]Boris Brezillon
The local mtd_name[] variable is limited in size. Return an error if the name passed in mtdparts does not fit in this local var. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Be more strict on the "mtdparts=" prefix checkBoris Brezillon
strstr() does not guarantee that the string we're searching for is placed at the beginning. Use strncmp() instead. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Use get_mtdids() instead of env_get("mtdids") in ↵Boris Brezillon
mtd_search_alternate_name() The environment is not guaranteed to contain a valid mtdids variable when called from mtd_search_alternate_name(). Call get_mtdids() instead of env_get("mtdids"). Fixes: ff4afa8a981e ("mtd: uboot: search for an equivalent MTD name with the mtdids") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: sf: Make sure we don't register the same device twiceBoris Brezillon
spi_flash_mtd_register() can be called several times and each time it will register the same mtd_info instance like if it was a new one. The MTD ID allocation gets crazy when that happens, so let's track the status of the sf_mtd_info object to avoid that. Fixes: 9fe6d8716e09 ("mtd, spi: Add MTD layer driver") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-12-06mtd: Delete partitions attached to the device when a device is deletedBoris Brezillon
If we don't do that, partitions might still be exposed while the underlying device is gone. Fixes: 2a74930da57f ("mtd: mtdpart: implement proper partition handling") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Parse mtdparts/mtdids again when the MTD list has been updatedBoris Brezillon
Updates to the MTD device list should trigger a new parsing of the mtdids/mtdparts vars even if those vars haven't changed. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06mtd: Add a function to report when the MTD dev list has been updatedBoris Brezillon
We need to parse mtdparts/mtids again everytime a device has been added/removed from the MTD list, but there's currently no way to know when such an update has been done. Add an ->updated field to the idr struct that we set to true every time a device is added/removed and expose a function returning the value of this field and resetting it to false. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Heiko Schocher <hs@denx.de>
2018-11-26mtd: nand: Arasan: Add subpage configuration supportMartin Lund
Add support for disabling subpage write support via CONFIG_SYS_NAND_NO_SUBPAGE_WRITE. Currently the Linux Arasan driver does not support subpage writes and in case of running UBI and accessing the same UBI volume from both U-Boot and Linux it is required to have the same subpage write configuration else the location of the UBI headers (EC + VID) will be misaligned (subpage vs page) and incompatible. Hence the need for disabling subpage write support in the U-Boot Arasan NAND driver. Signed-off-by: Martin Lund <malu@gomspace.com> Acked-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-11-22mtd: rawnand: pxa3xx: fix 2kiB pages with 8b strength chips layoutMiquel Raynal
The initial layout for such NAND chips was the following: +----------------------------------------------------------------------------+ | 1024 (data) | 30 (ECC) | 1024 (data) | 30 (ECC) | 32 (free OOB) | 30 (ECC) | +----------------------------------------------------------------------------+ This layout has a weakness: reading empty pages trigger ECC errors (this is expected), but the hardware ECC engine tries to correct the data anyway and creates itself bitflips, hence bitflips are detected in erased pages while actually there are none in the NAND chip. Two solutions have been found at the same time. One was to enlarge the free OOB area to 64 bytes, changing the layout to be: +----------------------------------------------------------------------------+ | 1024 (data) | 30 (ECC) | 1024 (data) | 30 (ECC) | 64 (free OOB) | 30 (ECC) | +----------------------------------------------------------------------------+ ^^ The very big drawbacks of this solution are: 1/ It prevents booting from NAND. 2/ The current Linux driver (marvell_nand) does not have such problem because it already re-reads possible empty pages in raw mode before checking for bitflips. Using different layouts in U-Boot and Linux would simply not work. As this driver does support raw reads now and uses it to check for empty pages, let's forget about this broken hack and return to the initial layout with only 32 free OOB bytes. Fixes: ac56a3b30c ("mtd: nand: pxa3xx: add support for 2KB 8-bit flash") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com>
2018-11-22mtd: nand: pxa3xx: re-read a page in raw mode on uncorrectable errorMiquel Raynal
This only applies on BCH path. When an empty page is read, it triggers an uncorrectable error. While this is expected, the ECC engine might produce itself bitflips in the read data under certain layouts. To overcome this situation, always re-read the entire page in raw mode and check for the whole page to be empty. Also report the right number of bitflips if there are any. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com>
2018-11-22mtd: nand: pxa3xx: add raw read supportMiquel Raynal
Raw read support is added by editing a few code sections: ->handle_data_pio() includes the ECC bytes that are not consumed anymore by the ECC engine. ->prepare_set_command() is changed so that the ECC bytes are requested as part of the data I/O length. ->drain_fifo() shall also avoid checking the R/B pin too often when in raw mode. ->read_page_raw()/->read_oob_raw() are written from scratch. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com>
2018-11-20sf: Add a method to obtain the block-protect settingSimon Glass
It is useful to obtain the block-protect setting of the SPI flash, so we know whether it is fully open or (perhaps partially) write-protected. Add a method for this. Update the sandbox driver to process this operation and add a test. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-11-16mtd: nand: lpc32xx slc: disable DMA support in SPL buildsVladimir Zapolskiy
Testing and analysis shows that at the moment LPC32xx NAND SLC driver can not get PL080 DMA backbone support in SPL build, because SPL NAND loaders operate with subpage (ECC step to be precisely) reads, and this is not supported in the NAND SLC + DMA + hardware ECC calculation bundle. The change removes a cautious build time warning and explicitly disables DMA flavour of the driver for SPL builds, to reduce the amound of #ifdef sections the code blocks are minimally reorganized. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
2018-11-16mtd: nand: lpc32xx mlc: predefine number of NAND chips to supportVladimir Zapolskiy
Build option CONFIG_SYS_MAX_NAND_CHIPS is used by NXP LPC32xx NAND MLC driver only, as a preparation for potential removal or replacement of the option the change predefines CONFIG_SYS_MAX_NAND_CHIPS to 1, same value is used by the single user Work Microwave Work 92105 board, thus it will be safe now to remove the option as a board specific one. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-11-13mtd: Drop duplicate MTD_PARTITIONS Kconfig optionBoris Brezillon
Commit 9c5b00973bce ("Convert CONFIG_MTD_PARTITIONS et al to Kconfig") introduced a publicly visible Kconfig entry for the CONFIG_MTD_PARTITIONS option, while the rework on MTD partitioning was in progress, and we somehow did not notice that the same Kconfig entry was added by commit 4048a5c519a8 ("mtd: declare MTD_PARTITIONS symbol in Kconfig"), but this time as an invisible entry (this can only be selected by other options). Keep the non-visible version of this symbol, since MTD_PARTITIONS is not something the user should be able to enable/disable directly. Fixes: 4048a5c519a8 ("mtd: declare MTD_PARTITIONS symbol in Kconfig") Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-11-13mtd: Use default mtdparts/mtids when not defined in the environmentBoris Brezillon
U-boot provides a mean to define default values for mtdids and mtdparts when they're not defined in the environment. Patch mtd_probe_devices() to use those default values when env_get("mtdparts") or env_get("mtdids") return NULL. This implementation is based on the logic found in cmd/mtdparts.c. Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") Reported-by: Stefan Roese <sr@denx.de> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-10-22nand: atmel: Initialize pmecc smu with correct sizeBin Meng
Currently in pmecc_get_sigma(), the code tries to clear the memory pointed by smu with wrong size 'sizeof(int16_t) * ARRAY_SIZE(smu)'. Since smu is actually a pointer, not an array, so ARRAY_SIZE(smu) does not generate correct size to be cleared. In fact, GCC 8.1.0 reports a warning against it: error: division 'sizeof (int16_t * {aka short int *}) / sizeof (int16_t {aka short int})' does not compute the number of array elements [-Werror=sizeof-pointer-div] Fix it by using the correct size. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-10-19Convert CONFIG_FLASH_CFI_DRIVER et al to KconfigAdam Ford
This converts the following to Kconfig: CONFIG_FLASH_CFI_DRIVER CONFIG_SYS_FLASH_USE_BUFFER_WRITE CONFIG_FLASH_CFI_MTD CONFIG_SYS_FLASH_PROTECTION CONFIG_SYS_FLASH_CFI Signed-off-by: Adam Ford <aford173@gmail.com> [trini: Re-migrate] Signed-off-by: Tom Rini <trini@konsulko.com>
2018-10-12Merge branch 'master' of git://git.denx.de/u-boot-spiTom Rini