mtd: nand: Fix probe of Samsung NAND chips

[net-next-2.6.git] / drivers / mtd / nand / nand_base.c

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index a3c7473dd409c51f9dd1b215eb09673a3fd858e8..d551ddd9537a34d17fe3c13b7604855fc5c06f5b 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2866,6 +2866,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                 */
                if (id_data[0] == id_data[6] && id_data[1] == id_data[7] &&
                                id_data[0] == NAND_MFR_SAMSUNG &&
+                               (chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
                                id_data[5] != 0x00) {
                        /* Calc pagesize */
                        mtd->writesize = 2048 << (extid & 0x03);
@@ -2934,14 +2935,10 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                chip->chip_shift = ffs((unsigned)(chip->chipsize >> 32)) + 32 - 1;
 
        /* Set the bad block position */
-       if (!(busw & NAND_BUSWIDTH_16) && (*maf_id == NAND_MFR_STMICRO ||
-                               (*maf_id == NAND_MFR_SAMSUNG &&
-                                mtd->writesize == 512) ||
-                               *maf_id == NAND_MFR_AMD))
-               chip->badblockpos = NAND_SMALL_BADBLOCK_POS;
-       else
+       if (mtd->writesize > 512 || (busw & NAND_BUSWIDTH_16))
                chip->badblockpos = NAND_LARGE_BADBLOCK_POS;
-
+       else
+               chip->badblockpos = NAND_SMALL_BADBLOCK_POS;
 
        /* Get chip options, preserve non chip based options */
        chip->options &= ~NAND_CHIPOPTIONS_MSK;