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>

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;
 }
 
 /**