+static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
+static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
+
+static struct nand_bbt_descr bbt_main_no_oob_descr = {
+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_WRITE |
+ NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP |
+ NAND_BBT_NO_OOB,
+ .len = 4,
+ .veroffs = 4,
+ .maxblocks = NAND_BBT_SCAN_MAXBLOCKS,
+ .pattern = bbt_pattern,
+};
+
+static struct nand_bbt_descr bbt_mirror_no_oob_descr = {
+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_WRITE |
+ NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP |
+ NAND_BBT_NO_OOB,
+ .len = 4,
+ .veroffs = 4,
+ .maxblocks = NAND_BBT_SCAN_MAXBLOCKS,
+ .pattern = mirror_pattern,
+};
+