mtd: nand: force NAND_CMD_READID onto 8-bit bus

[deliverable/linux.git] / drivers / mtd / nand / nand_base.c

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index deeaa1cc4a85796e72f9fc09903113682d412f56..6281151e4cb7a274d5414a4471fba8148da3c81b 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -589,7 +589,8 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
        /* Serially input address */
        if (column != -1) {
                /* Adjust columns for 16 bit buswidth */
-               if (chip->options & NAND_BUSWIDTH_16)
+               if (chip->options & NAND_BUSWIDTH_16 &&
+                               !nand_opcode_8bits(command))
                        column >>= 1;
                chip->cmd_ctrl(mtd, column, ctrl);
                ctrl &= ~NAND_CTRL_CHANGE;
@@ -680,7 +681,8 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
                /* Serially input address */
                if (column != -1) {
                        /* Adjust columns for 16 bit buswidth */
-                       if (chip->options & NAND_BUSWIDTH_16)
+                       if (chip->options & NAND_BUSWIDTH_16 &&
+                                       !nand_opcode_8bits(command))
                                column >>= 1;
                        chip->cmd_ctrl(mtd, column, ctrl);
                        ctrl &= ~NAND_CTRL_CHANGE;