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| author | Marek Vasut <marek.vasut@gmail.com> | 2011-09-23 15:43:10 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2011-10-03 18:35:12 -0500 |
| commit | fb3659ac422801ea18f36ef62926df70beeada4c (patch) | |
| tree | 80f4eb0ee045e88ef731eab2f494317e161379dc /doc/README.nand | |
| parent | 6d41419f0b010db03c01dec59875144457aa11d2 (diff) | |
| download | u-boot-imx-fb3659ac422801ea18f36ef62926df70beeada4c.zip u-boot-imx-fb3659ac422801ea18f36ef62926df70beeada4c.tar.gz u-boot-imx-fb3659ac422801ea18f36ef62926df70beeada4c.tar.bz2 | |
NAND: Add nand read.raw and write.raw commands
These commands should work around various "hardware" ECC and BCH methods.
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: s/write the page/access the page/]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'doc/README.nand')
| -rw-r--r-- | doc/README.nand | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/README.nand b/doc/README.nand index 751b693..023740e 100644 --- a/doc/README.nand +++ b/doc/README.nand @@ -94,6 +94,15 @@ Commands: of data for one 512-byte page or 2 256-byte pages. There is no check for bad blocks. + nand read.raw addr ofs|partition + Read page from `ofs' in NAND flash to `addr'. This reads the raw page, + so ECC is avoided and the OOB area is read as well. + + nand write.raw addr ofs|partition + Write page from `addr' to `ofs' in NAND flash. This writes the raw page, + so ECC is avoided and the OOB area is written as well, making the whole + page written as-is. + Configuration Options: CONFIG_CMD_NAND |