mtd: nand: add support for Samsung K9LCG08U0B

Assume that:
          tmp = ((extid >> 2) & 0x04) | (extid & 0x03));

From the K9LCG08U0B's datasheet, we know that:
  the oob size is 640 when tmp is 6;
  the oob size is 1024 when tmp is 7;

Signed-off-by: Huang Shijie <b32955@freescale.com>
[Brian: fixed compile issue]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index d388c7f..59eba5d 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3285,9 +3285,12 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
                        mtd->oobsize = 512;
                        break;
                case 6:
-               default: /* Other cases are "reserved" (unknown) */
                        mtd->oobsize = 640;
                        break;
+               case 7:
+               default: /* Other cases are "reserved" (unknown) */
+                       mtd->oobsize = 1024;
+                       break;
                }
                extid >>= 2;
                /* Calc blocksize */