diff options
Diffstat (limited to 'doc/README.nand')
| -rw-r--r-- | doc/README.nand | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/doc/README.nand b/doc/README.nand index 96ffc48940..f1c20ff645 100644 --- a/doc/README.nand +++ b/doc/README.nand @@ -137,7 +137,7 @@ Configuration Options: init: /* chip is struct nand_chip, and is now provided by the driver. */ - mtd = &chip.mtd; + mtd = nand_to_mtd(&chip); /* * Fill in appropriate values if this driver uses these fields, @@ -271,7 +271,7 @@ Platform specific options However, for 4K pagesize NAND NAND_PAGESIZE = 4096 - NAND_OOBSIZE = 64 + NAND_OOBSIZE = 224 ECC_BYTES = 26 2 + (4096 / 512) * 26 = 210 < NAND_OOBSIZE Thus BCH16 can be supported on 4K page NAND. @@ -307,7 +307,7 @@ Miscellaneous and testing commands: DANGEROUS!!! Factory set bad blocks will be lost. Use only to remove artificial bad blocks created with the "markbad" command. - "torture offset" + "torture offset [size]" Torture block to determine if it is still reliable. Enabled by the CONFIG_CMD_NAND_TORTURE configuration option. This command returns 0 if the block is still reliable, else 1. @@ -324,6 +324,10 @@ Miscellaneous and testing commands: automate actions following a nand->write() error. This would e.g. be required in order to program or update safely firmware to NAND, especially for the UBI part of such firmware. + Optionally, a second parameter size can be given to test multiple blocks with + one call. If size is not a multiple of the NAND's erase size, then the block + that contains offset + size will be tested in full. If used with size, this + command returns 0 if all tested blocks have been found reliable, else 1. NAND locking command (for chips with active LOCKPRE pin) |
