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-rw-r--r--drivers/mtd/nand/raw/nand_esmt.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/nand_esmt.c b/drivers/mtd/nand/raw/nand_esmt.c
index 58646ed663ac..3338c68aaaf1 100644
--- a/drivers/mtd/nand/raw/nand_esmt.c
+++ b/drivers/mtd/nand/raw/nand_esmt.c
@@ -36,7 +36,14 @@ static void esmt_nand_decode_id(struct nand_chip *chip)
static int esmt_nand_init(struct nand_chip *chip)
{
if (nand_is_slc(chip))
- chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
+ /*
+ * It is known that some ESMT SLC NANDs have been shipped
+ * with the factory bad block markers in the first or last page
+ * of the block, instead of the first or second page. To be on
+ * the safe side, let's check all three locations.
+ */
+ chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
+ NAND_BBM_LASTPAGE;
return 0;
}