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* 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>
* NAND:Extending the nand_ecclayout structureSandeep Paulraj2009-11-18-1/+1
| | | | | | | | | NANDs with page size of lesser than and equal to 2K are reaching EOL. They are bing replaced with NANDs of page size 4K and above. To support this we have to extend the eccpos field Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* Flex-OneNAND driver supportAmul Kumar Saha2009-11-13-3/+31
| | | | | | | This patch adds support for Flex-OneNAND devices. Signed-off-by: Rohit Hagargundgi <h.rohit@samsung.com> Signed-off-by: Amul Kumar Saha <amul.saha@samsung.com>
* NAND: Update to support 64 bit device sizeSandeep Paulraj2009-11-13-3/+3
| | | | | | | | This patch adds support for NANDs greater than 2 GB. Patch is based on the MTD NAND driver in the kernel. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* s5pc1xx: SMDKC100: fix compile warningsMinkyu Kang2009-10-24-35/+35
| | | | | | | fix the following compile warnings warning: dereferencing type-punned pointer will break strict-aliasing rules Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* s5pc1xx: support onenand driverMinkyu Kang2009-10-13-0/+136
| | | | | | | This patch includes the onenand driver for s5pc100 Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
* MTD:NAND: ADD new ECC mode NAND_ECC_HW_OOB_FIRSTSandeep Paulraj2009-08-26-0/+1
| | | | | | | | | | | | | | | | | This patch adds the new mode NAND_ECC_HW_OOB_FIRST in the nand code to support 4-bit ECC on TI DaVinci devices with large page (up to 2K) NAND chips. This ECC mode is similar to NAND_ECC_HW, with the exception of read_page API that first reads the OOB area, reads the data in chunks, feeds the ECC from OOB area to the ECC hw engine and perform any correction on the data as per the ECC status reported by the engine. This patch has been accepted by Andrew Morton and can be found at http://userweb.kernel.org/~akpm/mmotm/broken-out/mtd-nand-add-new-ecc-mode-ecc_hw_oob_first.patch Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: ADD page Parameter to all read_page/read_page_raw API'sSandeep Paulraj2009-08-26-2/+2
| | | | | | | | | | | | | | | | This patch adds a new "page" parameter to all NAND read_page/read_page_raw APIs. The read_page API for the new mode ECC_HW_OOB_FIRST requires the page information to send the READOOB command and read the OOB area before the data area. This patch has been accepted by Andrew Morton and can be found at http://userweb.kernel.org/~akpm/mmotm/broken-out/mtd-nand-add-page-parameter-to-all-read_page-read_page_raw-apis.patch WE would like this to become part of the u-boot GIT as well Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* OneNAND: Remove unused read_spareramKyungmin Park2009-08-26-2/+1
| | | | | | | Remove unused read_spareram and add unlock_all as kernel does Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* Remove legacy NAND and disk on chip code.Scott Wood2009-07-16-256/+0
| | | | | | | | | | | | | Legacy NAND had been scheduled for removal. Any boards that use this were already not building in the previous release due to an #error. The disk on chip code in common/cmd_doc.c relies on legacy NAND, and it has also been removed. There is newer disk on chip code in drivers/mtd/nand; someone with access to hardware and sufficient time and motivation can try to get that working, but for now disk on chip is not supported. Signed-off-by: Scott Wood <scottwood@freescale.com>
* nand: Change NAND_MAX_OOBSIZE to 218 as needed for some 4k page devicesStefan Roese2009-07-16-1/+1
| | | | | | | | | This is needed for the MPC512x NAND driver (fsl_nfc_nand.c) which already defines such a 4k plus 218 bytes ECC layout. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* Coding style cleanup; update CHANGELOGWolfgang Denk2009-07-07-4/+2
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* mtd: Update MTD infrastructure to support 64bit device sizeStefan Roese2009-06-12-8/+21
| | | | | | | | | | | This patch brings the U-Boot MTD infrastructure in sync with the current Linux MTD version (2.6.30-rc3). Biggest change is the 64bit device size support and a resync of the mtdpart.c file which has seen multiple fixes meanwhile. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Scott Wood <scottwood@freescale.com> Cc: Kyungmin Park <kmpark@infradead.org>
* mtd: Add MTD concat support to concatenate multiple MTD NOR devicesStefan Roese2009-06-12-4/+29
| | | | | | | | | This patch adds concatenation support to the U-Boot MTD infrastructure. By enabling CONFIG_MTD_CONCAT this MTD CFI wrapper will concatenate all found NOR devices into one single MTD device. This can be used by e.g by UBI to access a partition that spans over multiple NOR chips. Signed-off-by: Stefan Roese <sr@denx.de>
* Add wait flags to support board/chip specific delaysWolfgang Grandegger2009-03-23-1/+5
| | | | | | | | | | | | | | The NAND flash on the TQM8548_BE modules requires a short delay after running the UPM pattern like the MPC8360ERDK board does. The TQM8548_BE requires a further short delay after writing out a buffer. Normally the R/B pin should be checked, but it's not connected on the TQM8548_BE. The corresponding Linux FSL UPM driver uses similar delay points at the same locations. To manage these extra delays in a more general way, I introduced the "wait_flags" field allowing the board-specific driver to specify various types of extra delay. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* Add support for TQM-specific chip select logic to FSL-UPMWolfgang Grandegger2009-03-23-0/+1
| | | | | | | | | For the NAND chips on the TQM8548 modules, a special chip-select logic is used. It uses dedicated address lines to be set via UPM machine address register (mar). This patch adds such support to the FSL-UPM driver. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* Add multi chip support to the FSL-UPM driverWolfgang Grandegger2009-03-23-1/+3
| | | | | | | | | | | This patch adds support for multi-chip NAND devices to the FSL-UPM driver. The "dev_ready" callback of the "struct fsl_upm_nand" is now called with the argument "chip_nr" to allow testing the proper chip select line. The NAND support of the MPC8360ERDK is updated as well. No other boards are currently using the FSL UPM driver. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: rename NAND_MAX_CHIPS to CONFIG_SYS_NAND_MAX_CHIPSWolfgang Grandegger2009-01-23-13/+9
| | | | | | | | | | | | | | | | This patch renames NAND_MAX_CHIPS to CONFIG_SYS_NAND_MAX_CHIPS and changes the default from 8 to 1 for the legacy and the new MTD NAND layer. This allows to remove all NAND_MAX_CHIPS definitions in the board config files because none of the boards use multi chip support (NAND_MAX_CHIPS > 1) so far. The bamboo and the DU440 define #define NAND_MAX_CHIPS CONFIG_SYS_MAX_NAND_DEVICE but that's bogus and did not work anyhow. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
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