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path: root/drivers/mtd/nand/nand_base.c
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* 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>
* Don't panic if a controller driver does ecc its own way.Scott Wood2008-08-12-2/+6
| | | | | | | | | | | | Some hardware, such as the enhanced local bus controller used on some mpc83xx chips, does ecc transparently when reading and writing data, rather than providing a generic calculate/correct mechanism that can be exported to the nand subsystem. The subsystem should not BUG() when calculate, correct, or hwctl are missing, if the methods that call them have been overridden. Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Make NAND driver less verbose per defaultStefan Roese2008-08-12-3/+3
| | | | | | | This patch turns off printing of bad blocks per default upon bootup. This can always be shown via the "nand bad" command later. Signed-off-by: Stefan Roese <sr@denx.de>
* NAND: Change nand_wait_ready() to not call nand_wait()Stefan Roese2008-08-12-1/+10
| | | | | | | | This patch changes nand_wait_ready() to not just call nand_wait(), since this will send a new command to the NAND chip. We just want to wait for the chip to become ready here. Signed-off-by: Stefan Roese <sr@denx.de>
* Fixing coding style issuesWilliam Juul2008-08-12-1/+1
| | | | | | | | | - Fixing leading white spaces - Fixing indentation where 4 spaces are used instead of tab - Removing C++ comments (//), wherever I introduced them Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* Remove white space at end.William Juul2008-08-12-2/+2
| | | | | Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* Update MTD to that of Linux 2.6.22.1William Juul2008-08-12-1695/+1784
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A lot changed in the Linux MTD code, since it was last ported from Linux to U-Boot. This patch takes U-Boot NAND support to the level of Linux 2.6.22.1 and will enable support for very large NAND devices (4KB pages) and ease the compatibility between U-Boot and Linux filesystems. This patch is tested on two custom boards with PPC and ARM processors running YAFFS in U-Boot and Linux using gcc-4.1.2 cross compilers. MAKEALL ppc/arm has some issues: * DOC/OneNand/nand_spl is not building (I have not tried porting these parts, and since I do not have any HW and I am not familiar with this code/HW I think its best left to someone else.) Except for the issues mentioned above, I have ported all drivers necessary to run MAKEALL ppc/arm without errors and warnings. Many drivers were trivial to port, but some were not so trivial. The following drivers must be examined carefully and maybe rewritten to some degree: cpu/ppc4xx/ndfc.c cpu/arm926ejs/davinci/nand.c board/delta/nand.c board/zylonite/nand.c Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Stig Olsen <stig.olsen@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Rename DEBUG to MTDDEBUG to avoid namespace pollution.Scott Wood2008-07-09-35/+68
| | | | | | | | | This is particularly problematic now that non-NAND-specific code is including <nand.h>, and thus all debugging code is being compiled regardless of whether it was requested, as reported by Scott McNutt <smcnutt@psyent.com>. Signed-off-by: Scott Wood <scottwood@freescale.com>
* NAND: Added support for 128-bit OOB, adaptedSergei Poselenov2008-06-11-13/+33
| | | | Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
* Big white-space cleanup.Wolfgang Denk2008-05-21-10/+10
| | | | | | | | | | | This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
* PATCH - Fix oob data copied into supplied bufferTroy Kisky2008-04-21-9/+8
| | | | | | | | | | | | | This patch correctly sets the oobavail variable and fixes a bug where the oob data was not valid when there where multiple groups in oobfree. First segment fixes a typo Second segment fixes a bug where oob data may be copied incorrectly. Third segment adds an error message when exiting due to write protect. Forth segment fixes a bug where oobavail may be set incorrectly. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
* drivers/mtd : move mtd drivers to drivers/mtdJean-Christophe PLAGNIOL-VILLARD2007-11-25-0/+2668
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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