diff --git a/components/drivers/include/drivers/mtd_nand.h b/components/drivers/include/drivers/mtd_nand.h
index d9d17194e4cc3e8bc0d5c55ed7fd4783b025b83e..4ea2a92d40c9ed899d70ed371e0da762f2533708 100644
--- a/components/drivers/include/drivers/mtd_nand.h
+++ b/components/drivers/include/drivers/mtd_nand.h
@@ -35,10 +35,11 @@ struct rt_mtd_nand_device
 {
 	struct rt_device parent;
 
-	rt_uint32_t page_size;			/* The Page size in the flash */
+	rt_uint16_t page_size;			/* The Page size in the flash */
 	rt_uint16_t oob_size;			/* Out of bank size */	
 	rt_uint16_t oob_free;           /* the free area in oob that flash driver not use */
-	
+	rt_uint16_t plane_num; 			/* the number of plane in the NAND Flash */
+
 	rt_uint32_t pages_per_block;    /* The number of page a block */
     rt_uint16_t block_total;