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NAND: Add nand read.raw and write.raw commands

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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>
This commit is contained in:
Marek Vasut 2011-09-23 15:43:10 +02:00 • committed by Scott Wood
parent 6d41419f0b
commit fb3659ac42
2 changed files with 28 additions and 0 deletions
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9
doc/README.nand
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@ -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