mtd: nand: sunxi: fix the NFC_ECC_ERR_CNT() macro

NFC_ECC_ERR_CNT() is not taking into account the case when the NAND chip
contains more than 4 ECC blocks (NANDs with 4kB+ pages).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index 4dcc0e4..4cb5c6f 100644 (file)
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -154,7 +154,7 @@
 /* define bit use in NFC_ECC_ST */
 #define NFC_ECC_ERR(x)         BIT(x)
 #define NFC_ECC_PAT_FOUND(x)   BIT(x + 16)
-#define NFC_ECC_ERR_CNT(b, x)  (((x) >> ((b) * 8)) & 0xff)
+#define NFC_ECC_ERR_CNT(b, x)  (((x) >> (((b) % 4) * 8)) & 0xff)
 
 #define NFC_DEFAULT_TIMEOUT_MS 1000