diff options
| author | Mike Dunn <mikedunn@newsguy.com> | 2012-03-11 22:21:10 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 01:56:36 +0200 |
| commit | 1d0b95b0834087ba3653f69c24483d63a26d51a7 (patch) | |
| tree | 3f32fbe2f4aa28c5cec4be31e40e9db4138e8ce8 | |
| parent | mtd: docg3 reduce read alignment burden (diff) | |
| download | linux-1d0b95b0834087ba3653f69c24483d63a26d51a7.tar.xz linux-1d0b95b0834087ba3653f69c24483d63a26d51a7.zip | |
mtd: add ecc_strength fields to mtd structs
This adds 'ecc_strength' to struct mtd_info. This stores the maximum number of
bit errors that can be corrected in one writesize region.
For consistency with the nand code, 'strength' is similiarly added to struct
nand_ecc_ctrl. This stores the maximum number of bit errors that can be
corrected in one ecc step.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | include/linux/mtd/mtd.h | 3 | ||||
| -rw-r--r-- | include/linux/mtd/nand.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 726c2d1b2589..cf5ea8cdcf8e 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -164,6 +164,9 @@ struct mtd_info { /* ECC layout structure pointer - read only! */ struct nand_ecclayout *ecclayout; + /* max number of correctible bit errors per writesize */ + unsigned int ecc_strength; + /* Data for variable erase regions. If numeraseregions is zero, * it means that the whole device has erasesize as given above. */ diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 609868f3db42..1482340d3d9f 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -324,6 +324,7 @@ struct nand_hw_control { * @steps: number of ECC steps per page * @size: data bytes per ECC step * @bytes: ECC bytes per step + * @strength: max number of correctible bits per ECC step * @total: total number of ECC bytes per page * @prepad: padding information for syndrome based ECC generators * @postpad: padding information for syndrome based ECC generators @@ -351,6 +352,7 @@ struct nand_ecc_ctrl { int size; int bytes; int total; + int strength; int prepad; int postpad; struct nand_ecclayout *layout; |