mtd: nand: arasan_nfc: Correct nand ecc initialization

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>
Tested-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/mtd/nand/arasan_nfc.c b/drivers/mtd/nand/arasan_nfc.c
index 2d73a05e75d576c6cb363883e01507cc14de99e4..caa7982d7e081c7a23823b53929fa7ab01cd159d 100644 (file)
--- a/drivers/mtd/nand/arasan_nfc.c
+++ b/drivers/mtd/nand/arasan_nfc.c
@@ -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;