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* kbuild: force to define __UBOOT__ in all the C sourcesMasahiro Yamada2014-09-16-4/+0
| | | | | | | | | | | | | | | | | | | | | | | U-Boot has imported various source files from other projects, mostly Linux. Something like #ifdef __UBOOT__ [ modification for U-Boot ] #else [ original code ] #endif is an often used strategy for clarification of adjusted parts, that is, easier re-sync in future. Instead of defining __UBOOT__ in each source file, passing it from the top Makefile would be easier. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
* mtd,ubi,ubifs: sync with linux v3.15Heiko Schocher2014-08-25-19/+110
| | | | | | | | | | | | | | snyc with linux v3.15: commit 1860e379875dfe7271c649058aeddffe5afd9d0d Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun Jun 8 11:19:54 2014 -0700 Linux 3.15 Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Scott Wood <scottwood@freescale.com> Cc: Tom Rini <trini@ti.com>
* mtd, ubi, ubifs: update for the sync with linux v3.14Heiko Schocher2014-08-25-0/+1
| | | | | | | | | | | | | while playing with the new mtd/ubi/ubifs sync, found some small updates for it: - add del_mtd_partition() to include/linux/mtd/mtd - mtd: add a debug_printf - remove some not used functions Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Scott Wood <scottwood@freescale.com> Cc: Tom Rini <trini@ti.com>
* mtd, ubi, ubifs: resync with Linux-3.14Heiko Schocher2014-08-25-257/+728
| | | | | | | | | | | | | | | | | | | | resync ubi subsystem with linux: commit 455c6fdbd219161bd09b1165f11699d6d73de11c Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun Mar 30 20:40:15 2014 -0700 Linux 3.14 A nice side effect of this, is we introduce UBI Fastmap support to U-Boot. Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Cc: Marek Vasut <marex@denx.de> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Scott Wood <scottwood@freescale.com> Cc: Joerg Krause <jkrause@posteo.de>
* mtd: nand: omap: add support for BCH16_ECC - NAND driver updatespekon gupta2014-06-06-0/+8
| | | | | | | | | | | | | | | | | | This patch add support for BCH16_ECC to omap_gpmc driver. *need to BCH16 ECC scheme* With newer SLC Flash technologies and MLC NAND, and large densities, pagesizes Flash devices have become more suspectible to bit-flips. Thus stronger ECC schemes are required for protecting the data. But stronger ECC schemes have come with larger-sized ECC syndromes which require more space in OOB/Spare. This puts constrains like; (a) BCH16_ECC can correct 16 bit-flips per 512Bytes of data. (b) BCH16_ECC generates 26-bytes of ECC syndrome / 512B. Due to (b) this scheme can only be used with NAND devices which have enough OOB to satisfy following equation: OOBsize per page >= 26 * (page-size / 512) Signed-off-by: Pekon Gupta <pekon@ti.com>
* mtd: nand: omap_gpmc: use macro for register definitionspekon gupta2014-06-06-1/+2
| | | | | | GPMC can support simultaneous processing of 8 512Byte data chunks, in parallel Signed-off-by: Pekon Gupta <pekon@ti.com>
* mtd: nand: fix GET/SET_FEATURES address on 16-bit devicesDavid Mosberger2014-06-06-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | As per following Sections in ONFI Spec, GET_FEATURES and SET_FEATURES also need byte-addressing on 16-bit devices. *Section: Target Initialization" "The Read ID and Read Parameter Page commands only use the lower 8-bits of the data bus. The host shall not issue commands that use a word data width on x16 devices until the host determines the device supports a 16-bit data bus width in the parameter page." *Section: Bus Width Requirements* "When the host supports a 16-bit bus width, only data is transferred at the 16-bit width. All address and command line transfers shall use only the lower 8-bits of the data bus. During command transfers, the host may place any value on the upper 8-bits of the data bus. During address transfers, the host shall set the upper 8-bits of the data bus to 00h." So porting following commit from linux kernel commit e34fcb07a6d57411de6e15a47724fbe92c5caa42 Author: David Mosberger <davidm@egauge.net> (preserving authorship) mtd: nand: fix GET/SET_FEATURES address on 16-bit devices Signed-off-by: Pekon Gupta <pekon@ti.com>
* mtd: nand: force NAND_CMD_READID onto 8-bit busBrian Norris2014-06-06-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As per following Sections in ONFI Spec, NAND_CMD_READID should use only lower 8-bit for transfering command, address and data even on x16 NAND device. *Section: Target Initialization" "The Read ID and Read Parameter Page commands only use the lower 8-bits of the data bus. The host shall not issue commands that use a word data width on x16 devices until the host determines the device supports a 16-bit data bus width in the parameter page." *Section: Bus Width Requirements* "When the host supports a 16-bit bus width, only data is transferred at the 16-bit width. All address and command line transfers shall use only the lower 8-bits of the data bus. During command transfers, the host may place any value on the upper 8-bits of the data bus. During address transfers, the host shall set the upper 8-bits of the data bus to 00h." Thus porting following commit from linux-kernel to ensure that column address is not altered to align to x16 bus when issuing NAND_CMD_READID command. commit 3dad2344e92c6e1aeae42df1c4824f307c51bcc7 mtd: nand: force NAND_CMD_READID onto 8-bit bus Author: Brian Norris <computersforpeace@gmail.com> (preserving authorship) The NAND command helpers tend to automatically shift the column address for x16 bus devices, since most commands expect a word address, not a byte address. The Read ID command, however, expects an 8-bit address (i.e., 0x00, 0x20, or 0x40 should not be translated to 0x00, 0x10, or 0x20). This fixes the column address for a few drivers which imitate the nand_base defaults. Signed-off-by: Pekon Gupta <pekon@ti.com>
* mtd: nand: omap_elm: use macros for register definitionspekon gupta2014-06-06-3/+6
| | | | | | | | | This patch adds macros for following parameters of ELM Hardware engine - ELM_MAX_CHANNELS: ELM can process 8 data streams simultaneously - ELM_MAX_ERRORS: ELM can detect upto 16 ECC error when using BCH16 scheme Signed-off-by: Pekon Gupta <pekon@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
* mtd: nand: omap_elm: use bch_type instead of nibble count to differentiate ↵pekon gupta2014-06-06-1/+1
| | | | | | | | | | | | | | | | | | | between BCH4/BCH8/BCH16 ELM hardware engine support ECC error detection for multiple ECC strengths like +------+------------------------+ |Type | ECC syndrome length | +------+------------------------+ |BCH4 | 6.5 bytes = 13 nibbles | |BCH8 | 13 byte = 26 nibbles | |BCH16 | 26 bytes = 52 nibbles | +------+------------------------+ Current implementation of omap_elm driver uses ECC syndrom length (in 'nibbles') to differentiate between BCH4/BCH8/BCH16. This patch replaces it with 'bch_type' Signed-off-by: Pekon Gupta <pekon@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
* mtd: delete unused filesMasahiro Yamada2014-04-17-212/+0
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Scott Wood <scottwood@freescale.com>
* mtd: nand: omap: move omap_elm.h from arch/arm/include/asm to drivers/mtd/nandpekon gupta2014-03-04-0/+77
| | | | | | | | | omap_elm.h is a generic header used by OMAP ELM driver for all TI platfoms. Hence this file should be present in generic folder instead of architecture specific include folder. Build tested using: ./MAKEALL -s am33xx -s omap3 -s omap4 -s omap5 Signed-off-by: Pekon Gupta <pekon@ti.com>
* mtd: nand: omap: move omap_gpmc.h from arch/arm/include/asm to drivers/mtd/nandpekon gupta2014-03-04-0/+84
| | | | | | | | | omap_gpmc.h is a generic header used by OMAP NAND driver for all TI platfoms. Hence this file should be present in generic folder instead of architecture specific include folder. Build tested using: ./MAKEALL -s am33xx -s omap3 -s omap4 -s omap5 Signed-off-by: Pekon Gupta <pekon@ti.com>
* include: delete unused header filesMasahiro Yamada2014-01-24-124/+0
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* mtd: move & update nand_ecclayout structure (plus board changes)Prabhakar Kushwaha2013-11-21-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nand_ecclayout is present in mtd.h at Linux. Move this structure to mtd.h to comply with Linux. Also, increase the ecc placement locations to 640 to suport device having writesize/oobsize of 8KB/640B. This means that the maximum oobsize has gone up to 640 bytes and consequently the maximum ecc placement locations have also gone up to 640. Changes from Prabhabkar's version (squashed into one patch to preserve bisectability): - Added _LARGE to MTD_MAX_*_ENTRIES This makes the names match current Linux source, and resolves a conflict between http://patchwork.ozlabs.org/patch/280488/ and http://patchwork.ozlabs.org/patch/284513/ The former was posted first and is closer to matching Linux, but unlike Linux it does not add _LARGE to the names. The second adds _LARGE to one of the names, and depends on it in a subsequent patch (http://patchwork.ozlabs.org/patch/284512/). - Made max oobfree/eccpos configurable, and used this on tricorder, alpr, ASH405, T4160QDS, and T4240QDS (these boards failed to build for me without doing so, due to a size increase). On tricorder SPL, this saves 2576 bytes (and makes the SPL build again) versus the new default of 640 eccpos and 32 oobfree, and saves 336 bytes versus the old default of 128 eccpos and 8 oobfree. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> CC: Vipin Kumar <vipin.kumar@st.com> [scottwood@freescale.com: changes as described above] Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Thomas Weber <weber@corscience.de> Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com> Cc: Stefan Roese <sr@denx.de> Cc: York Sun <yorksun@freescale.com> Cc: Tom Rini <trini@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
* mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEANPaul Burton2013-10-09-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux modified the MTD driver interface in commit edbc4540 (with the same name as this commit). The effect is that calls to mtd_read will not return -EUCLEAN if the number of ECC-corrected bit errors is below a certain threshold, which defaults to the strength of the ECC. This allows -EUCLEAN to stop indicating "some bits were corrected" and begin indicating "a large number of bits were corrected, the data held in this region of flash may be lost soon". UBI makes use of this and when -EUCLEAN is returned from mtd_read it will move data to another block of flash. Without adopting this interface change UBI on U-boot attempts to move data between blocks every time a single bit is corrected using the ECC, which is a very common occurance on some devices. For some devices where bit errors are common enough, UBI can get stuck constantly moving data around because each block it attempts to use has a single bit error. This condition is hit when wear_leveling_worker attempts to move data from one PEB to another in response to an -EUCLEAN/UBI_IO_BITFLIPS error. When this happens ubi_eba_copy_leb is called to perform the data copy, and after the data is written it is read back to check its validity. If that read returns UBI_IO_BITFLIPS (in response to an MTD -EUCLEAN) then ubi_eba_copy_leb returns 1 to wear_leveling worker, which then proceeds to schedule the destination PEB for erasure. This leads to erase_worker running on the PEB, and following a successful erase wear_leveling_worker is called which begins this whole cycle all over again. The end result is that (without UBI debug output enabled) the boot appears to simply hang whilst in reality U-boot busily works away at destroying a block of the NAND flash. Debug output from this situation: UBI DBG: ensure_wear_leveling: schedule scrubbing UBI DBG: wear_leveling_worker: scrub PEB 1027 to PEB 4083 UBI DBG: ubi_io_read_vid_hdr: read VID header from PEB 1027 UBI DBG: ubi_io_read: read 4096 bytes from PEB 1027:4096 UBI DBG: ubi_eba_copy_leb: copy LEB 0:0, PEB 1027 to PEB 4083 UBI DBG: ubi_eba_copy_leb: read 1040384 bytes of data UBI DBG: ubi_io_read: read 1040384 bytes from PEB 1027:8192 UBI: fixable bit-flip detected at PEB 1027 UBI DBG: ubi_io_write_vid_hdr: write VID header to PEB 4083 UBI DBG: ubi_io_write: write 4096 bytes to PEB 4083:4096 UBI DBG: ubi_io_read_vid_hdr: read VID header from PEB 4083 UBI DBG: ubi_io_read: read 4096 bytes from PEB 4083:4096 UBI DBG: ubi_io_write: write 4096 bytes to PEB 4083:8192 UBI DBG: ubi_io_read: read 4096 bytes from PEB 4083:8192 UBI: fixable bit-flip detected at PEB 4083 UBI DBG: schedule_erase: schedule erasure of PEB 4083, EC 55, torture 0 UBI DBG: erase_worker: erase PEB 4083 EC 55 UBI DBG: sync_erase: erase PEB 4083, old EC 55 UBI DBG: do_sync_erase: erase PEB 4083 UBI DBG: sync_erase: erased PEB 4083, new EC 56 UBI DBG: ubi_io_write_ec_hdr: write EC header to PEB 4083 UBI DBG: ubi_io_write: write 4096 bytes to PEB 4083:0 UBI DBG: ensure_wear_leveling: schedule scrubbing UBI DBG: wear_leveling_worker: scrub PEB 1027 to PEB 4083 ... This patch adopts the interface change as in Linux commit edbc4540 in order to avoid such situations. Given that none of the drivers under drivers/mtd return -EUCLEAN, this should only affect those using software ECC. I have tested that it works on a board which is currently out of tree, but which I hope to be able to begin upstreaming soon. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Acked-by: Stefan Roese <sr@denx.de>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-85/+7
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* Merge branch 'master' of git://git.denx.de/u-boot-nand-flashTom Rini2013-05-31-315/+268
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| * mtd: resync with Linux-3.7.1Sergey Lapin2013-05-31-315/+268
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is essentially an update of u-boot MTD subsystem to the state of Linux-3.7.1 with exclusion of some bits: - the update is concentrated on NAND, no onenand or CFI/NOR/SPI flashes interfaces are updated EXCEPT for API changes. - new large NAND chips support is there, though some updates have got in Linux-3.8.-rc1, (which will follow on top of this patch). To produce this update I used tag v3.7.1 of linux-stable repository. The update was made using application of relevant patches, with changes relevant to U-Boot-only stuff sticked together to keep bisectability. Then all changes were grouped together to this patch. Signed-off-by: Sergey Lapin <slapin@ossfans.org> [scottwood@freescale.com: some eccstrength and build fixes] Signed-off-by: Scott Wood <scottwood@freescale.com>
* | mtd: nand: add driver for diskonchip g4 nand flashMike Dunn2013-05-05-0/+134
|/ | | | | | | | | | | | | | | | | | | | This patch adds a driver for the diskonchip G4 nand flash device. It is based on the driver from the linux kernel. This also includes a separate SPL driver. A separate SPL driver is used because the device operates in a different mode (reliable mode) when loading a boot image, and also because the storage format of the boot image is different from normal data (pages are stored redundantly). The SPL driver basically mimics how a typical IPL reads data from the device. The special operating mode and storage format are used to compensate for the fact that the IPL does not contain the BCH ecc decoding algorithm (due to size constraints). Although the u-boot SPL *could* use ecc, it operates like an IPL for the sake of simplicity and uniformity, since the IPL and SPL share the task of loading the u-boot image. As a side benefit, the SPL driver is very small. [port from linux kernel 3.4 commit 570469f3bde7f71cc1ece07a18d54a05b6a8775d] Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
* Consolidate bool typeYork Sun2013-04-01-1/+1
| | | | | | | | | | | | | 'bool' is defined in random places. This patch consolidates them into a single header file include/linux/types.h, using stdbool.h introduced in C99. All other #define, typedef and enum are removed. They are all consistent with true = 1, false = 0. Replace FALSE, False with false. Replace TRUE, True with true. Skip *.py, *.php, lib/* files. Signed-off-by: York Sun <yorksun@freescale.com>
* nand: Move the sub-page read support enable to a flagJoe Hershberger2012-11-26-3/+4
| | | | | | | | | Use a flag instead of a hard-coded macro so that sub-page reads can be enabled in other cases (such as on-die ecc). This is the same as a5ff4f102937a3492bca4a9ff0c341d78813414c in Linux Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* include/linux/compat.h: fix warning: preprocessor token {__iomem, __user} ↵Kim Phillips2012-11-04-0/+2
| | | | | | | | | | | | | | | | | redefined include/linux/compat.h:4:9: warning: preprocessor token __user redefined include/linux/compiler.h:7:10: this was the original definition include/linux/compat.h:5:9: warning: preprocessor token __iomem redefined include/linux/compiler.h:12:10: this was the original definition fixup __iomem, __user definitions in compat.h code appears to be placed there as a cover up from a code import from linux when u-boot didn't yet have a compiler.h, introduced by commit 932394ac43e2e778e664eeb6e456fecd0fae6e59 "Rewrite of NAND code based on what is in 2.6.12 Linux kernel". Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2012-09-21-3/+4
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| * nand: Try to align the default buffersSimon Glass2012-09-07-3/+4
| | | | | | | | | | | | | | | | | | | | The NAND layer needs to use cache-aligned buffers by default. Towards this goal. align the default buffers and their members according to the minimum DMA alignment defined for the architecture. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com> Acked-by: Scott Wood <scottwood@freescale.com>
* | mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driverMarek Vasut2012-09-17-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is based on Linux kernel -next: commit 14f44abf1dafc20ba42ce8616a8fc8fbd1b3712b Author: Brian Norris <computersforpeace@gmail.com> Date: Fri Jul 13 09:28:24 2012 -0700 mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver The NAND_CHIPOPTIONS_MSK has limited utility and is causing real bugs. It silently masks off at least one flag that might be set by the driver (NAND_NO_SUBPAGE_WRITE). This breaks the GPMI NAND driver and possibly others. Really, as long as driver writers exercise a small amount of care with NAND_* options, this mask is not necessary at all; it was only here to prevent certain options from accidentally being set by the driver. But the original thought turns out to be a bad idea occasionally. Thus, kill it. Note, this patch fixes some major gpmi-nand breakage. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Eric Nelson <eric.nelson@boundarydevices.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | nand: consolidate duplicated constantsJoe Hershberger2012-09-17-0/+2
|/ | | | | | | NAND_CMD_ constants for lock/unlock should be in the header Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* st_smi: Change SMI timeout valuesAmit Virdi2012-07-07-2/+2
| | | | | Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
* st_smi: Add support for SPEAr SMI driverVipin KUMAR2012-07-07-0/+117
| | | | | | | | | | | | | | SMI is the serial memory interface controller provided by ST. Earlier, a driver exists in the u-boot source code for the SMI IP. However, it was specific to spear platforms. This commit converts the same driver to a more generic driver. As a result, the driver files are renamed to st_smi.c and st_smi.h and moved into drivers/mtd folder for reusability by other platforms using smi controller peripheral. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
* mtd/NAND: Add FSMC driver supportVipin KUMAR2012-07-07-0/+101
| | | | | | | | | | | | | | Flexible static memory controller is a peripheral provided by ST, which controls the access to NAND chips along with many other memory device chips eg NOR, SRAM. This patch adds the driver support for FSMC controller interfacing with NAND memory. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Scott Wood <scottwood@freescale.com>
* linux/compat.h: rename from linux/mtd/compat.hMike Frysinger2012-04-30-55/+3
| | | | | | This lets us use it in more places than just mtd code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* onenand: Replace ONENAND_IS_MLC() with ONENAND_HAS_4KB()Lukasz Majewski2012-04-04-0/+4
| | | | | | | | | | | | | | | | | | This replacement causes 4KB page size devices to work properly with u-boot. The old ONENAND_IS_MLC() behavior has been preserved by explicit setting of ONENAND_HAS_4KB_PAGE for those devices. This change makes the onenand_base.c file more resembling the respective kernel sources. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> --- Test HW: - Samsung S5PC110 GONI - Samsung S5PC210 Universal
* onenand:samsung Target dependent OneNAND chip probe functionLukasz Majewski2012-04-04-0/+3
| | | | | | | | | | Separate callback for probing OneNAND memory chip. If no special function is defined, default implementation will be used. This approach gives more flexibility for OneNAND device probing. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
* nand: reinstate lazy bad block scanningScott Wood2012-02-28-0/+2
| | | | | | | | | | | | | commit 2a8e0fc8b3dc31a3c571e439fbf04b882c8986be ("nand: Merge changes from Linux nand driver") accidentally reverted commit 13f0fd94e3cae6f8a0d9fba5d367e311edc8ebde ("NAND: Scan bad blocks lazily."). Reinstate the change, as amended by commit ff49ea8977b56916edd5b1766d9939010e30b181 ("NAND: Mark the BBT as scanned prior to calling scan_bbt."). Signed-off-by: Scott Wood <scottwood@freescale.com>
* Revert "nand: make 1-bit software ECC configurable"Scott Wood2012-02-28-25/+0
| | | | | | | | | | | | | | This reverts commit 4fee6c2f295f932b8febdc7ce8731ba045695fa5. It breaks boards that currently rely on soft-ecc, as pointed out here: http://patchwork.ozlabs.org/patch/140872/ The reverted patch should be resubmitted with documentation, and with the CONFIG_MTD_ECC_SOFT selected from every board that needs it. We could start by looking at what NAND driver the board selects, and whether that driver ever asks for soft ECC. Signed-off-by: Scott Wood <scottwood@freescale.com>
* nand: make 1-bit software ECC configurableChristian Hitz2012-01-26-0/+25
| | | | | | | | | | The software ECC algorithm is not necessary when hardware ECC is available and can be left out for a smaller image size. Enable with CONFIG_MTD_ECC_SOFT. Signed-off-by: Christian Hitz <christian.hitz@aizo.com> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* nand: Merge changes to BBT from Linux nand driverChristian Hitz2012-01-26-0/+2
| | | | | | | | | | [backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe] This patch synchronizes the nand driver with the Linux 3.0 state. Signed-off-by: Christian Hitz <christian.hitz@aizo.com> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* nand: Merge changes from Linux nand driverChristian Hitz2012-01-26-165/+232
| | | | | | | | | | | [backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe] This patch synchronizes the nand driver with the Linux 3.0 state. Signed-off-by: Christian Hitz <christian.hitz@aizo.com> Cc: Scott Wood <scottwood@freescale.com> [scottwood@freescale.com: minor fixes] Signed-off-by: Scott Wood <scottwood@freescale.com>
* nand: Merge BCH code from Linux nand driverChristian Hitz2012-01-26-7/+75
| | | | | | | | | | | | [backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe] This patch merges the BCH ECC algorithm from the 3.0 Linux kernel. This enables U-Boot to support modern NAND flash chips that require more than 1-bit of ECC in software. Signed-off-by: Christian Hitz <christian.hitz@aizo.com> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* nand: Add common functions to linux/mtd/nand.hSimon Schwarz2011-12-06-0/+7
| | | | | | | | | | | | Functions often used in SPL are now part of linux/mtd/nand.h. Static modifiers are removed from these functions in drivers/mtd/nand/nand_base.c. Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Cc: scottwood@freescale.com Cc: s-paulraj@ti.com Cc: albert.u.boot@aribaud.net Acked-by: Scott Wood <scottwood@freescale.com>
* NAND: Really ignore bad blocks when scrubbingMarek Vasut2011-10-03-0/+1
| | | | | | | | | | Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> [scottwood@freescale.com: use chip instead of redundant priv_nand] Signed-off-by: Scott Wood <scottwood@freescale.com>
* Convert ISO-8859 files to UTF-8Albert ARIBAUD2011-08-04-1/+1
| | | | | | | | There was a mix of UTF-8 and ISO-8859 files in the U-Boot source tree, which could cause issues with the patchwork review system. This commit converts all ISO-8859 files to UTF-8. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
* NAND: add support for reading ONFI page tableFlorian Fainelli2011-04-01-0/+69
| | | | | | | | | | | | This patch adds support for reading an ONFI page parameter from a NAND device supporting it. If this is the case, struct nand_chip onfi_version member contains the supported ONFI version, 0 otherwise. This allows NAND drivers past nand_scan_ident to set the best timings for the NAND chip. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Scott Wood <scottwood@freescale.com>
* mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()Lei Wen2011-01-12-1/+3
| | | | | | | | | | | | | | This patch sync with David's patch on Linux for handling nand_scan_ident. commit 5e81e88a4c140586d9212999cea683bcd66a15c6 Author: David Woodhouse <David.Woodhouse@intel.com> Date: Fri Feb 26 18:32:56 2010 +0000 mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident() Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Lei Wen <leiwen@marvell.com>
* NAND: add NAND_CMD_PARAM (0xec) definitionFlorian Fainelli2010-12-17-0/+1
| | | | | | This command is used to read the device ONFI parameters page. Signed-off-by: Florian Fainelli <florian@openwrt.org>
* nand: constify id/manu tablesMike Frysinger2010-12-17-2/+2
| | | | | | These id tables need not be writable. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* mtd: OneNAND: add support for OneNAND manufactured by NumonyxEnric Balletbo i Serra2010-10-11-0/+1
| | | | | | | | | | This patch adds the Numonyx manufacturer code (0x20) to onenand manufacturers. Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Steve Sakoman <steve.sakoman@linaro.org> Tested-by: Steve Sakoman <steve.sakoman@linaro.org>
* mtd: add an mtd method for get_len_incl_bad()Ben Gardiner2010-10-11-1/+3
| | | | | | | | | | | | | | | The logic to 'spread' mtd partitions needs to calculate the length in the mtd device, including bad blocks. This patch introduces a new function, mtd_get_len_incl_bad that can return both the length including bad blocks and whether that length was truncated on the device. This new function will be used by the mtdparts spread command later in this series. The definition of the function is #ifdef'd out in configurations that do not use the new 'mtdparts spread' command. Signed-off-by: Ben Gardiner<bengardiner@nanometrics.ca> CC: Scott Wood <scottwood@freescale.com>
* nand: remove dead code and suspend/resumeScott Wood2010-10-11-4/+0
| | | | | | | | | | | | | | | Get rid of the several "#if 0" sections that were keeping around Linux code that isn't relevant to U-Boot. Besides cluttering the code, these sections make tracking upstream changes harder, rather than easier. It's easy to discard obviously irrelevant diff hunks that patch rejects, but it's not as easy to notice hunks that apply cleanly to the #if 0 section, but *are* relevant to U-Boot and require modification elsewhere. Also remove suspend/resume, as this is not applicable to U-Boot. Removal saves 232 bytes on powerpc. Signed-off-by: Scott Wood <scottwood@freescale.com> Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>
* move definition of macros likely and unlikely to compiler.hMatthias Kaehlcke2010-01-18-3/+0
| | | | | | | the macros likely and unlikely were defined in include/linux/mtd/compat.h, but used in code not related to MTD. moved the macro definitions to compiler.h Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
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