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mtd: nand: arasan_nfc: Correct nand ecc initialization

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Correct the nand ecc initialization code
This fixes the issue of incorrect nand ecc
init if no device is found in ecc_matrix then
it endsup ecc init with junk initialization
instead of the most suited one.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Siva Durga Prasad Paladugu 2016-05-25 15:20:38 +05:30 committed by Michal Simek
parent b2f1858455
commit 7530ae087a
1 changed files with 9 additions and 9 deletions
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18
drivers/mtd/nand/arasan_nfc.c
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@ -1058,20 +1058,20 @@ static int arasan_nand_ecc_init(struct mtd_info *mtd)
if (found < 0)
return 1;
regval = ecc_matrix[i].eccaddr |
(ecc_matrix[i].eccsize << ARASAN_NAND_ECC_SIZE_SHIFT) |
(ecc_matrix[i].bch << ARASAN_NAND_ECC_BCH_SHIFT);
regval = ecc_matrix[found].eccaddr |
(ecc_matrix[found].eccsize << ARASAN_NAND_ECC_SIZE_SHIFT) |
(ecc_matrix[found].bch << ARASAN_NAND_ECC_BCH_SHIFT);
writel(regval, &arasan_nand_base->ecc_reg);
if (ecc_matrix[i].bch) {
if (ecc_matrix[found].bch) {
regval = readl(&arasan_nand_base->memadr_reg2);
regval &= ~ARASAN_NAND_MEM_ADDR2_BCH_MASK;
regval |= (ecc_matrix[i].bchval <<
regval |= (ecc_matrix[found].bchval <<
ARASAN_NAND_MEM_ADDR2_BCH_SHIFT);
writel(regval, &arasan_nand_base->memadr_reg2);
}
nand_oob.eccbytes = ecc_matrix[i].eccsize;
nand_oob.eccbytes = ecc_matrix[found].eccsize;
eccpos_start = mtd->oobsize - nand_oob.eccbytes;
for (i = 0; i < nand_oob.eccbytes; i++)
@ -1080,9 +1080,9 @@ static int arasan_nand_ecc_init(struct mtd_info *mtd)
nand_oob.oobfree[0].offset = 2;
nand_oob.oobfree[0].length = eccpos_start - 2;
nand_chip->ecc.size = ecc_matrix[i].ecc_codeword_size;
nand_chip->ecc.strength = ecc_matrix[i].eccbits;
nand_chip->ecc.bytes = ecc_matrix[i].eccsize;
nand_chip->ecc.size = ecc_matrix[found].ecc_codeword_size;
nand_chip->ecc.strength = ecc_matrix[found].eccbits;
nand_chip->ecc.bytes = ecc_matrix[found].eccsize;
nand_chip->ecc.layout = &nand_oob;
return 0;