extern struct nand_flash_dev nand_flash_ids[];
+extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;
+
int nand_default_bbt(struct mtd_info *mtd);
int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);
int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs);