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| author | Armando Visconti <armando.visconti@st.com> | 2012-03-07 17:00:55 +0530 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:50:00 +0100 |
| commit | 0c78e93b44f39d4e5dfd4ebfc529cd74ac2a9bbb (patch) | |
| tree | 80c4373f5a8155be4ad16a5f3044a7156a6666ae /drivers/mtd | |
| parent | 753e0139e5569946056a8d5960111665a7f8f6f1 (diff) | |
| download | op-kernel-dev-0c78e93b44f39d4e5dfd4ebfc529cd74ac2a9bbb.zip op-kernel-dev-0c78e93b44f39d4e5dfd4ebfc529cd74ac2a9bbb.tar.gz | |
mtd: fsmc: Support of 224-bytes OOB area length
The current patch is required to support EVALSPEAR1340CPU
Revision 2 where a new (ONFI compliant) MT29F16G08 NAND
flash from Micron is present.
This NAND flash device defines a OOB area which is
224 bytes long (oobsize).
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/fsmc_nand.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 5b217f2..4a018d0 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -130,6 +130,42 @@ static struct nand_ecclayout fsmc_ecc4_256_layout = { }; /* + * ECC4 layout for NAND of pagesize 4096 bytes & OOBsize 224 bytes. 13*8 bytes + * of OOB size is reserved for ECC, Byte no. 0 & 1 reserved for bad block & 118 + * bytes are free for use. + */ +static struct nand_ecclayout fsmc_ecc4_224_layout = { + .eccbytes = 104, + .eccpos = { 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, + 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, + 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, + 50, 51, 52, 53, 54, 55, 56, + 57, 58, 59, 60, 61, 62, + 66, 67, 68, 69, 70, 71, 72, + 73, 74, 75, 76, 77, 78, + 82, 83, 84, 85, 86, 87, 88, + 89, 90, 91, 92, 93, 94, + 98, 99, 100, 101, 102, 103, 104, + 105, 106, 107, 108, 109, 110, + 114, 115, 116, 117, 118, 119, 120, + 121, 122, 123, 124, 125, 126 + }, + .oobfree = { + {.offset = 15, .length = 3}, + {.offset = 31, .length = 3}, + {.offset = 47, .length = 3}, + {.offset = 63, .length = 3}, + {.offset = 79, .length = 3}, + {.offset = 95, .length = 3}, + {.offset = 111, .length = 3}, + {.offset = 127, .length = 97} + } +}; + +/* * ECC4 layout for NAND of pagesize 4096 bytes & OOBsize 128 bytes. 13*8 bytes * of OOB size is reserved for ECC, Byte no. 0 & 1 reserved for bad block & 22 * bytes are free for use. @@ -856,6 +892,10 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) nand->ecc.layout = &fsmc_ecc4_128_layout; host->ecc_place = &fsmc_ecc4_lp_place; break; + case 224: + nand->ecc.layout = &fsmc_ecc4_224_layout; + host->ecc_place = &fsmc_ecc4_lp_place; + break; case 256: nand->ecc.layout = &fsmc_ecc4_256_layout; host->ecc_place = &fsmc_ecc4_lp_place; |
