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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/devices
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/devices')
-rw-r--r--drivers/mtd/devices/doc2000.c1
-rw-r--r--drivers/mtd/devices/doc2001.c1
-rw-r--r--drivers/mtd/devices/doc2001plus.c1
-rw-r--r--drivers/mtd/devices/docg3.c1
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;
}
/**