diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2018-07-10 11:48:08 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-07-23 14:33:21 -0400 |
| commit | 323a73adc9a1bf2de43fe03bdd9c3038ce7c2784 (patch) | |
| tree | 3d3900246c45c0b7aa38681360134ef8ee4815fc /include/linux | |
| parent | d5674d62ce8cd3b7e366b7ca5752084fbe89db7b (diff) | |
mtd: nand: add new enum for storing ECC algorithm
Our nand_ecc_modes_t is already a bit abused by value NAND_ECC_SOFT_BCH.
This enum should store ECC mode only and putting algorithm details there
is a bad idea. It would result in too many values impossible to support
in a sane way.
To solve this problem let's add a new enum. We'll have to modify all
drivers to set it properly but once it's done it'll be possible to drop
NAND_ECC_SOFT_BCH. That will result in a cleaner design and more
possibilities like setting ECC algorithm for hardware ECC mode.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: b0fcd8ab7b3c89b5da7fff5224d06ed73e7a33cc]
[Philippe Reynes: adapt code to u-boot]
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/rawnand.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index cdad7b85fa..9f5dc81aca 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -143,6 +143,12 @@ typedef enum { NAND_ECC_SOFT_BCH, } nand_ecc_modes_t; +enum nand_ecc_algo { + NAND_ECC_UNKNOWN, + NAND_ECC_HAMMING, + NAND_ECC_BCH, +}; + /* * Constants for Hardware ECC */ @@ -533,6 +539,7 @@ static const struct nand_ecc_caps __name = { \ /** * struct nand_ecc_ctrl - Control structure for ECC * @mode: ECC mode + * @algo: ECC algorithm * @steps: number of ECC steps per page * @size: data bytes per ECC step * @bytes: ECC bytes per step @@ -583,6 +590,7 @@ static const struct nand_ecc_caps __name = { \ */ struct nand_ecc_ctrl { nand_ecc_modes_t mode; + enum nand_ecc_algo algo; int steps; int size; int bytes; |