Re: [U-Boot] [PATCH 2/5 V3] NAND: Add nand read.raw and write.raw commands

On 09/22/2011 01:36 PM, Marek Vasut wrote:

@@ -695,10 +711,11 @@ U_BOOT_CMD( "NAND sub-system", "info - show available NAND devices\n" "nand device [dev] - show or set current device\n"

• "nand read - addr off|partition size\n"
• "nand write - addr off|partition size\n"

• "nand read[.raw] - addr off|partition\n"
• "nand write[.raw] - addr off|partition\n" " read/write 'size' bytes starting at offset 'off'\n" " to/from memory address 'addr', skipping bad blocks.\n"
• " Use read.raw/write.raw to avoid ECC and write the block as-is.\n"

Only the .raw version lacks size -- please do not remove it from the help text for the normal read/write.

diff --git a/doc/README.nand b/doc/README.nand index 751b693..62c077e 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 block from `ofs' in NAND flash to `addr'. This reads the raw block,
  

•  so ECC is avoided and the OOB area is read as well.
  

• nand write.raw addr ofs|partition

•  Write block from `addr' to `ofs' in NAND flash. This writes the raw block,
  

•  so ECC is avoided and the OOB area is written as well, making the whole
  

•  block written as-is.
  

Again, it's operating on a page, not a block.

-Scott