[MTD] [NAND] Fix refactoring of EDB7312 hwcontrol function.

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / mtd / nand / edb7312.c

diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c
index 1daf823..0146cdc 100644 (file)
--- a/drivers/mtd/nand/edb7312.c
+++ b/drivers/mtd/nand/edb7312.c
@@ -74,7 +74,7 @@ static struct mtd_partition partition_info[] = {
 /*
  *     hardware specific access to control-lines
  *
- *     NAND_NCE: bit 0 -> bit 7
+ *     NAND_NCE: bit 0 -> bit 6 (bit 7 = 1)
  *     NAND_CLE: bit 1 -> bit 4
  *     NAND_ALE: bit 2 -> bit 5
  */
@@ -83,12 +83,12 @@ static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
        struct nand_chip *chip = mtd->priv;
 
        if (ctrl & NAND_CTRL_CHANGE) {
-               unsigned char bits;
+               unsigned char bits = 0x80;
 
-               bits = (ctrl & (NAND_CLE | NAND_ALE)) << 3;
-               bits = (ctrl & NAND_NCE) << 7;
+               bits |= (ctrl & (NAND_CLE | NAND_ALE)) << 3;
+               bits |= (ctrl & NAND_NCE) ? 0x00 : 0x40;
 
-               clps_writeb((clps_readb(ep7312_pxdr)  & 0xB0) | 0x10,
+               clps_writeb((clps_readb(ep7312_pxdr)  & 0xF0) | bits,
                            ep7312_pxdr);
        }
        if (cmd != NAND_CMD_NONE)