From cf840392e83914b9fcdbce8a8a2bc17a84cf0353 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 30 Jul 2008 12:35:00 -0700 Subject: [PATCH] [MTD] [NAND] Blackfin NFC Driver: fix bug - hw ecc calc by making sure we extract 11 bits from each register instead of 10 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/nand/bf5xx_nand.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 3254348f858..fc58afe4733 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -298,7 +298,7 @@ static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd, ecc0 = bfin_read_NFC_ECC0(); ecc1 = bfin_read_NFC_ECC1(); - code[0] = (ecc0 & 0x3FF) | ((ecc1 & 0x3FF) << 11); + code[0] = (ecc0 & 0x7ff) | ((ecc1 & 0x7ff) << 11); dev_dbg(info->device, "returning ecc 0x%08x\n", code[0]); @@ -310,7 +310,7 @@ static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd, if (page_size == 512) { ecc0 = bfin_read_NFC_ECC2(); ecc1 = bfin_read_NFC_ECC3(); - code[1] = (ecc0 & 0x3FF) | ((ecc1 & 0x3FF) << 11); + code[1] = (ecc0 & 0x7ff) | ((ecc1 & 0x7ff) << 11); /* second 3 bytes in ecc_code for second 256 * bytes of 512 page size -- 2.41.1