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path: root/drivers/mtd/nand/nand_base.c
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* mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driverMarek Vasut2012-09-17-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* mtd: support ONFI multi lun NANDMatthieu CASTET2012-09-17-1/+2
| | | | | | | | | | | | | | | | | | | | | | | With onfi a flash is organized into one or more logical units (LUNs). A logical unit (LUN) is the minimum unit that can independently execute commands and report status. Mtd does not exploit LUN, so make it see a big single flash where size is lun_size * number_of_lun. Without this patch MT29F8G08ADBDAH4 size is 512MiB instead of 1GiB. Artem: split long line on 2 shorter ones. This is commit 637957551c0ac80de8dfc7650d320c5a98c2c0c0 from Linux Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com> Acked-by: Florian Fainelli <ffainelli@freebox.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> [scottwood@freescale.com: picked from Linux into U-Boot] Reported-by: Rafael Beims <rafael.beims@gmail.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Remove ONFI detection message to from bootup logStefan Roese2012-05-18-2/+3
| | | | | | | | | | | | | | | | | | | | | | | Without this patch, boot shows this messages upon NAND detection: NAND: ONFI flash detected ONFI param page 0 valid ONFI flash detected ONFI param page 0 valid 128 MiB With this patch, its back to the U-Boot "standard": NAND: 128 MiB Tested on x600 (SPEAr600). Signed-off-by: Stefan Roese <sr@denx.de> Cc: Amit Virdi <amit.virdi@st.com> Cc: Vipin Kumar <vipin.kumar@st.com> Cc: Scott Wood <scottwood@freescale.com> Acked-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Scott Wood <scott@tyr.buserror.net>
* linux/compat.h: rename from linux/mtd/compat.hMike Frysinger2012-04-30-1/+1
| | | | | | This lets us use it in more places than just mtd code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* nand: reinstate lazy bad block scanningScott Wood2012-02-28-3/+7
| | | | | | | | | | | | | 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 Wood2012-02-28-4/+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/+4
| | | | | | | | | | 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: Sanitize ONFI strings.Christian Hitz2012-01-26-1/+22
| | | | | | | | | | | [backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe] This is part of the synchronization with the nand driver to 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 Hitz2012-01-26-150/+309
| | | | | | | | | | | [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: cleanup whitespaceChristian Hitz2012-01-26-74/+78
| | | | | | | | Bring up to date with corresponding file from linux. 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 BCH code from Linux nand driverChristian Hitz2012-01-26-1/+38
| | | | | | | | | | | | [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 Schwarz2011-12-06-3/+3
| | | | | | | | | | | | 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 Vasut2011-10-03-1/+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>
* spl: add NAND Library to new SPLSimon Schwarz2011-09-30-2/+2
| | | | | | | | Adds NAND library to SPL. Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* nand_base: trivial: fix comment read/write commentBen Gardiner2011-07-01-1/+1
| | | | | | | | Replace an incorrect 'read' with 'write' in a comment. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Acked-by: Detlev Zundel <dzu@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: rearrange ONFI revision checking, add ONFI 2.3Florian Fainelli2011-04-15-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch sync with Brian's patch on Linux in nand_flash_detect_onfi() commit b7b1a29d94c17e4341856381bccb4d17495bea60 Author: Brian Norris <computersforpeace@gmail.com> Date: Sun Dec 12 00:23:33 2010 -0800 mtd: nand: rearrange ONFI revision checking, add ONFI 2.3 In checking for the ONFI revision, the first conditional (for checking "unsupported" ONFI) seems unnecessary. All ONFI revisions should be backwards-compatible; even if this is not the case on some newer ONFI revision, it should simply fail the second version-checking if-else block (i.e., the bit-fields for 1.0, 2.0, etc. would not be set to 1). Thus, we move our "unsupported" condition after having checked each bit field. Also, it's simple enough to add a condition for ONFI revision 2.3. Note that this does *NOT* mean we handle all new features of ONFI versions above 1.0. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Florian Fainelli <ffainelli@freebox.fr> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Florian Fainelli <florian@openwrt.org>
* NAND: Fix integer overflow in ONFI detection of chips >= 4GiBFlorian Fainelli2011-04-15-1/+1
| | | | | | | | | | | | | | This patch sync with David's patch on Linux in nand_flash_detect_onfi() commit 4ccb3b4497ce01fab4933704fe21581e30fda1a5 Author: David Woodhouse <David.Woodhouse@intel.com> Date: Fri Dec 3 16:36:34 2010 +0000 mtd: nand: Fix integer overflow in ONFI detection of chips >= 4GiB Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Florian Fainelli <florian@openwrt.org>
* NAND: add support for reading ONFI page tableFlorian Fainelli2011-04-01-49/+144
| | | | | | | | | | | | 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>
* NAND: add more watchdog resetsScott Wood2011-04-01-0/+6
| | | | | | | Poke the watchdog in a variety of looping constructs, which could take a long time to complete. Signed-off-by: Scott Wood <scottwood@freescale.com>
* Minor Coding Style Cleanup.Wolfgang Denk2011-02-02-19/+19
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()Lei Wen2011-01-12-14/+15
| | | | | | | | | | | | | | 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>
* MTD/NAND: fix nand_base.c to use get_timer() correctlyReinhard Meyer2010-12-17-6/+9
| | | | | | | | | This is part of the timer cleanup effort. In the future we only use get_timer() in its intended way to program timeout loops. reset_timer() shall not be used anymore. Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
* nand: constify id/manu tablesMike Frysinger2010-12-17-3/+3
| | | | | | These id tables need not be writable. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* nand: remove dead code and suspend/resumeScott Wood2010-10-11-237/+1
| | | | | | | | | | | | | | | 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>
* nand util: read/write: accept unaligned lengthScott Wood2010-10-11-7/+0
| | | | | | | | | | | | | | | | The underlying code in nand_base.c already supports non-page-aligned reads and writes, but the block-skipping wrapper code did not. With block skipping, an unaligned start address is not useful since you really want to be starting at the beginning of a partition -- or at least that's where you want to start checking for blocks to skip, but we don't (yet) support that. So we still require the start address to be aligned. An unaligned length, though, is useful for passing $filesize to the read/write command, and handling it does not complicate block skipping. Signed-off-by: Scott Wood <scottwood@freescale.com> Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>
* mtd: nand: supress 'unknown NAND' warning if no nand is foundSteve Sakoman2010-09-08-3/+6
| | | | | | | | | | | | | | | This printk was added recently and results in ugly output on systems with no NAND: NAND: nand_get_flash_type: unknown NAND device: Manufacturer ID: 0x00, Chip ID: 0x00 0 MiB instead of: NAND: 0 MiB Signed-off-by: Steve Sakoman <steve@sakoman.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: show manufacturer and device ID for unknown chipsFlorian Fainelli2010-07-08-1/+5
| | | | | | | | When the NAND part is not supported, it is useful to show the manufacturer and device ID to help debugging and reporting. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Update read_read_subpage API checkSandeep Paulraj2009-11-18-1/+1
| | | | | | | This patch updates a check condition in the NAND driver. The check condition is similat to what is in linux/next. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: fix "raw" reads with ECC syndrome layoutsDavid Brownell2009-11-13-4/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | The syndrome based page read/write routines store ECC, and possibly other "OOB" data, right after each chunk of ECC'd data. With ECC chunk size of 512 bytes and a large page (2KiB) NAND, the layout is: data-0 OOB-0 data-1 OOB-1 data-2 OOB-2 data-3 OOB-3 OOB-leftover Where OOBx is (prepad, ECC, postpad). However, the current "raw" routines use a traditional layout -- data OOB, disregarding the prepad and postpad values -- so when they're used with that type of ECC hardware, those calls mix up the data and OOB. Which means, in particular, that bad block tables won't be found on startup, with data corruption and related chaos ensuing. The current syndrome-based drivers in mainline all seem to use one chunk per page; presumably they haven't noticed such bugs. Fix this, by adding read/write page_raw_syndrome() routines as siblings of the existing non-raw routines; "raw" just means to bypass the ECC computations, not change data and OOB layout. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* NAND: Don't walk past end of oobfree[]Sandeep Paulraj2009-11-13-1/+2
| | | | | | | | When computing oobavail from the list of free areas in the OOB, don't assume there will always be an unused slot at the end. This syncs up with the kernel NAND driver. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: Update check condition for nand_read_page_hwecc APISandeep Paulraj2009-11-13-1/+1
| | | | | | | | The patch updates the check condition for determining whether the ECC corrections has failed. This makes it similar to what is in the kernel NAND driver. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: Updating comments/explanations in the NAND driverSandeep Paulraj2009-11-13-4/+8
| | | | | | | Patch updates the comments and explanations for the arguments to various functions. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: Subpage shift for ecc_steps equal to 16Sandeep Paulraj2009-11-13-0/+1
| | | | | | | | | This was originally part of Thomas Gleixner's patch for adding support for 4KiB pages. This is not part of the U-Boot NAND driver so updating the driver with this to sync up with the kernel NAND driver. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: Remove commented out codeSandeep Paulraj2009-11-13-1/+0
| | | | | | Patch removes already commented out dead code Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: Correct the "chip_shift" calculationSandeep Paulraj2009-11-13-1/+1
| | | | | | | | This patch updates the "chip_shift" calculation in the NAND driver. This is being done to sync up the NAND driver with the kernel NAND driver. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* NAND: Update to support 64 bit device sizeSandeep Paulraj2009-11-13-10/+16
| | | | | | | | 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>
* MTD:NAND: ADD new ECC mode NAND_ECC_HW_OOB_FIRSTSandeep Paulraj2009-08-26-0/+59
| | | | | | | | | | | | | | | | | 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 Paulraj2009-08-26-7/+9
| | | | | | | | | | | | | | | | 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>
* mtd: nand: Include linux/mtd/partitions.h in nand_base.hStefan Roese2009-04-28-0/+4
| | | | | | | | | | This patch removes this compilation warning when CONFIG_MTD_PARTITIONS is defined: nand_base.c: In function 'nand_release': nand_base.c:2922: warning: implicit declaration of function 'del_mtd_partitions' Signed-off-by: Stefan Roese <sr@denx.de>
* Enable multi chip support in the NAND layerWolfgang Grandegger2009-03-23-0/+2
| | | | | | | | | | This patch adds support for NAND_MAX_CHIPS to the MTD NAND layer. Multi-chips devices are displayed as shown: Device 0: 2x NAND 512MiB 3,3V 8-bit, sector size 128 KiB Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Add timeout for reset commandPeter Tyser2009-02-06-2/+17
| | | | | | | | Without the timeout present an infinite loop can occur if the NAND device is broken or not present. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Silence warning when CONFIG_SYS_NAND_QUIET_TESTPeter Tyser2009-02-06-0/+2
| | | | | | | | | | Commit cfa460adfdefcc30d104e1a9ee44994ee349bb7b removed support for disabling the "No NAND device found!!!" warning when CONFIG_SYS_NAND_QUIET_TEST was defined. This re-adds support for silencing the warning. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: rename NAND_MAX_CHIPS to CONFIG_SYS_NAND_MAX_CHIPSWolfgang Grandegger2009-01-23-1/+1
| | | | | | | | | | | | | | | | 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>
* NAND: Mark the BBT as scanned prior to calling scan_bbt.Scott Wood2008-12-16-1/+1
| | | | | | | | Otherwise, recursion can occur if scan_bbt does not find a bad block table, and tries to write one, and the attempt to erase the BBT area causes a bad block check. Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Reset chip on power-upKarl Beldan2008-10-29-0/+8
| | | | | | | | | | Some chips require a RESET after power-up (e.g. Micron MT29FxGxxxxx). The first command sent is NAND_CMD_READID. Issue a NAND_CMD_RESET in nand_scan_ident before reading the device id. Tested with an MT29F4G08AAC. Signed-off-by: Karl Beldan <karl.beldan@gmail.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: sync with 2.6.27Scott Wood2008-10-29-8/+119
| | | | | | | | | | | | | This brings the core NAND code up to date with the Linux kernel. Since there were several drivers in Linux as of the last update that are not in u-boot, I'm not bringing over new drivers that have been added since in the absence of an interested party. I did not update OneNAND since it was recently synced by Kyungmin Park, and I'm not sure exactly what the common ancestor is. Signed-off-by: Scott Wood <scottwood@freescale.com>
* rename CFG_ macros to CONFIG_SYSJean-Christophe PLAGNIOL-VILLARD2008-10-18-3/+3
| | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* drivers/mtd/nand: Move conditional compilation to MakefileJean-Christophe PLAGNIOL-VILLARD2008-08-13-5/+0
| | | | | | rename CFG_NAND_LEGACY to CONFIG_NAND_LEGACY Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* NAND: chip->state does not always get set.Marcel Ziswiler2008-08-12-0/+1
| | | | | | | Fixes an issue with chip->state not always being set causing troubles. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Scan bad blocks lazily.Ilya Yanok2008-08-12-3/+7
| | | | | | | | | | Rather than scanning on boot, scan upon the first attempt to check the badness of a block. This speeds up boot when not using NAND, and reduces the likelihood of needing to reflash via JTAG if NAND becomes nonfunctional. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
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