diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index bfcef8a..c89f410 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -88,6 +88,31 @@
 	unsigned int		f_max;
 	u32			ocr_avail;
 
+#define MMC_VDD_145_150		0x00000001	/* VDD voltage 1.45 - 1.50 */
+#define MMC_VDD_150_155		0x00000002	/* VDD voltage 1.50 - 1.55 */
+#define MMC_VDD_155_160		0x00000004	/* VDD voltage 1.55 - 1.60 */
+#define MMC_VDD_160_165		0x00000008	/* VDD voltage 1.60 - 1.65 */
+#define MMC_VDD_165_170		0x00000010	/* VDD voltage 1.65 - 1.70 */
+#define MMC_VDD_17_18		0x00000020	/* VDD voltage 1.7 - 1.8 */
+#define MMC_VDD_18_19		0x00000040	/* VDD voltage 1.8 - 1.9 */
+#define MMC_VDD_19_20		0x00000080	/* VDD voltage 1.9 - 2.0 */
+#define MMC_VDD_20_21		0x00000100	/* VDD voltage 2.0 ~ 2.1 */
+#define MMC_VDD_21_22		0x00000200	/* VDD voltage 2.1 ~ 2.2 */
+#define MMC_VDD_22_23		0x00000400	/* VDD voltage 2.2 ~ 2.3 */
+#define MMC_VDD_23_24		0x00000800	/* VDD voltage 2.3 ~ 2.4 */
+#define MMC_VDD_24_25		0x00001000	/* VDD voltage 2.4 ~ 2.5 */
+#define MMC_VDD_25_26		0x00002000	/* VDD voltage 2.5 ~ 2.6 */
+#define MMC_VDD_26_27		0x00004000	/* VDD voltage 2.6 ~ 2.7 */
+#define MMC_VDD_27_28		0x00008000	/* VDD voltage 2.7 ~ 2.8 */
+#define MMC_VDD_28_29		0x00010000	/* VDD voltage 2.8 ~ 2.9 */
+#define MMC_VDD_29_30		0x00020000	/* VDD voltage 2.9 ~ 3.0 */
+#define MMC_VDD_30_31		0x00040000	/* VDD voltage 3.0 ~ 3.1 */
+#define MMC_VDD_31_32		0x00080000	/* VDD voltage 3.1 ~ 3.2 */
+#define MMC_VDD_32_33		0x00100000	/* VDD voltage 3.2 ~ 3.3 */
+#define MMC_VDD_33_34		0x00200000	/* VDD voltage 3.3 ~ 3.4 */
+#define MMC_VDD_34_35		0x00400000	/* VDD voltage 3.4 ~ 3.5 */
+#define MMC_VDD_35_36		0x00800000	/* VDD voltage 3.5 ~ 3.6 */
+
 	unsigned long		caps;		/* Host capabilities */
 
 #define MMC_CAP_4_BIT_DATA	(1 << 0)	/* Can the host do 4 bit transfers */