diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h
index 6573ea59d4ff..403a7c82d1c7 100644
--- a/drivers/mtd/nand/denali.h
+++ b/drivers/mtd/nand/denali.h
@@ -351,8 +351,8 @@ struct denali_nand_info {
 	struct device *dev;
 	int total_used_banks;
 	uint16_t page;
-	void __iomem *flash_reg;  /* Mapped io reg base address */
-	void __iomem *flash_mem;  /* Mapped io reg base address */
+	void __iomem *flash_reg;	/* Register Interface */
+	void __iomem *flash_mem;	/* Host Data/Command Interface */
 
 	/* elements used by ISR */
 	struct completion complete;