---

yaml
---
r: 195970
b: refs/heads/master
c: b60b08b
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 426c457a3216fac74e3d44dd39729b0689f4c7ab
+refs/heads/master: b60b08b02ca8d9575985ae6711bd656dd67e9039

trunk/drivers/mtd/nand/nand_base.c

@@ -347,6 +347,9 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 	struct nand_chip *chip = mtd->priv;
 	u16 bad;
 
+	if (chip->options & NAND_BB_LAST_PAGE)
+		ofs += mtd->erasesize - mtd->writesize;
+
 	page = (int)(ofs >> chip->page_shift) & chip->pagemask;
 
 	if (getchip) {
@@ -396,6 +399,9 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	uint8_t buf[2] = { 0, 0 };
 	int block, ret;
 
+	if (chip->options & NAND_BB_LAST_PAGE)
+		ofs += mtd->erasesize - mtd->writesize;
+
 	/* Get block number */
 	block = (int)(ofs >> chip->bbt_erase_shift);
 	if (chip->bbt)
@@ -2933,6 +2939,15 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize)
 		chip->options &= ~NAND_SAMSUNG_LP_OPTIONS;
 
+	/*
+	 * Bad block marker is stored in the last page of each block
+	 * on Samsung and Hynix MLC devices
+	 */
+	if ((chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
+			(*maf_id == NAND_MFR_SAMSUNG ||
+			 *maf_id == NAND_MFR_HYNIX))
+		chip->options |= NAND_BB_LAST_PAGE;
+
 	/* Check for AND chips with 4 page planes */
 	if (chip->options & NAND_4PAGE_ARRAY)
 		chip->erase_cmd = multi_erase_cmd;

trunk/drivers/mtd/nand/nand_bbt.c

@@ -432,6 +432,9 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 		from = (loff_t)startblock << (this->bbt_erase_shift - 1);
 	}
 
+	if (this->options & NAND_BB_LAST_PAGE)
+		from += mtd->erasesize - (mtd->writesize * len);
+
 	for (i = startblock; i < numblocks;) {
 		int ret;
 

trunk/include/linux/mtd/nand.h

@@ -181,6 +181,8 @@ typedef enum {
 #define NAND_NO_READRDY		0x00000100
 /* Chip does not allow subpage writes */
 #define NAND_NO_SUBPAGE_WRITE	0x00000200
+/* Chip stores bad block marker on the last page of the eraseblock */
+#define NAND_BB_LAST_PAGE	0x00000400
 
 /* Device is one of 'new' xD cards that expose fake nand command set */
 #define NAND_BROKEN_XD		0x00000400