diff options
| author |   Mike Dunn <mikedunn@newsguy.com> | 2012-03-11 14:21:11 -0700 |
|---|---|---|
| committer |   David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:56:46 +0100 |
| commit | 6a918bade9dab40aaef80559bd1169c69e8d69cb (patch) | |
| tree | 1be69789f9b6c6e064a36f4ef6e142a8ec0058b5 /drivers/mtd/devices | |
| parent | mtd: add ecc_strength fields to mtd structs (diff) | |
| download | linux-dev-6a918bade9dab40aaef80559bd1169c69e8d69cb.tar.xz linux-dev-6a918bade9dab40aaef80559bd1169c69e8d69cb.zip | |
mtd: flash drivers set ecc strength
Flash device drivers initialize 'ecc_strength' in struct mtd_info, which is the
maximum number of bit errors that can be corrected in one writesize region.
Drivers using the nand interface intitialize 'strength' in struct nand_ecc_ctrl,
which is the maximum number of bit errors that can be corrected in one ecc step.
Nand infrastructure code translates this to 'ecc_strength'.
Also for nand drivers, the nand infrastructure code sets ecc.strength for ecc
modes NAND_ECC_SOFT, NAND_ECC_SOFT_BCH, and NAND_ECC_NONE. It is set in the
driver for all other modes.
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>
Diffstat (limited to 'drivers/mtd/devices')
| -rw-r--r-- | drivers/mtd/devices/doc2000.c | 1 | ||||
| -rw-r--r-- | drivers/mtd/devices/doc2001.c | 1 | ||||
| -rw-r--r-- | drivers/mtd/devices/doc2001plus.c | 1 | ||||
| -rw-r--r-- | drivers/mtd/devices/docg3.c | 1 |
4 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index 7ad7b054800c..a4eb8b5b85ec 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -564,6 +564,7 @@ void DoC2k_init(struct mtd_info *mtd) mtd->flags = MTD_CAP_NANDFLASH; mtd->writebufsize = mtd->writesize = 512; mtd->oobsize = 16; + mtd->ecc_strength = 2; mtd->owner = THIS_MODULE; mtd->_erase = doc_erase; mtd->_read = doc_read; diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 7bff54e62cd5..f6927955dab0 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -348,6 +348,7 @@ void DoCMil_init(struct mtd_info *mtd) mtd->erasesize = 0x2000; mtd->writebufsize = mtd->writesize = 512; mtd->oobsize = 16; + mtd->ecc_strength = 2; mtd->owner = THIS_MODULE; mtd->_erase = doc_erase; mtd->_read = doc_read; diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index 4a03d869ad03..04eb2e4aa50f 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -469,6 +469,7 @@ void DoCMilPlus_init(struct mtd_info *mtd) mtd->flags = MTD_CAP_NANDFLASH; mtd->writebufsize = mtd->writesize = 512; mtd->oobsize = 16; + mtd->ecc_strength = 2; mtd->owner = THIS_MODULE; mtd->_erase = doc_erase; mtd->_read = doc_read; diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index 2c1d0fca6757..349bbfa74d0d 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -1832,6 +1832,7 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) mtd->_write_oob = doc_write_oob; mtd->_block_isbad = doc_block_isbad; mtd->ecclayout = &docg3_oobinfo; + mtd->ecc_strength = DOC_ECC_BCH_T; } /** |