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authorMike Dunn <mikedunn@newsguy.com>2012-03-11 14:21:11 -0700
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-03-27 00:56:46 +0100
commit6a918bade9dab40aaef80559bd1169c69e8d69cb (patch)
tree1be69789f9b6c6e064a36f4ef6e142a8ec0058b5 /drivers/mtd/nand/fsmc_nand.c
parent1d0b95b0834087ba3653f69c24483d63a26d51a7 (diff)
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/nand/fsmc_nand.c')
-rw-r--r--drivers/mtd/nand/fsmc_nand.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 341086c22e90..588e3733c3a4 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -863,10 +863,12 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
nand->ecc.calculate = fsmc_read_hwecc_ecc4;
nand->ecc.correct = fsmc_bch8_correct_data;
nand->ecc.bytes = 13;
+ nand->ecc.strength = 8;
} else {
nand->ecc.calculate = fsmc_read_hwecc_ecc1;
nand->ecc.correct = nand_correct_data;
nand->ecc.bytes = 3;
+ nand->ecc.strength = 1;
}
/*