diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index a7595680d8..e37ea54278 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -122,12 +122,23 @@ struct nand_ecc_req {
 
 #define NAND_ECCREQ(str, stp) { .strength = (str), .step_size = (stp) }
 
+/* nand_bbt option */
+#define NANDDEV_BBT_USE_FLASH		BIT(0)
+#define NANDDEV_BBT_SCANNED		BIT(1)
+
+/* The maximum number of blocks to scan for a bbt */
+#define NANDDEV_BBT_SCAN_MAXBLOCKS	4
+
 /**
  * struct nand_bbt - bad block table object
  * @cache: in memory BBT cache
+ * @option: the option of BBT
+ * @version: current memory BBT cache version
  */
 struct nand_bbt {
 	unsigned long *cache;
+	unsigned int option;
+	unsigned int version;
 };
 
 struct nand_device;