diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 949e4d5..6237599 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -50,6 +50,11 @@
 #define MMC_TIMING_LEGACY	0
 #define MMC_TIMING_MMC_HS	1
 #define MMC_TIMING_SD_HS	2
+#define MMC_TIMING_UHS_SDR12	MMC_TIMING_LEGACY
+#define MMC_TIMING_UHS_SDR25	MMC_TIMING_SD_HS
+#define MMC_TIMING_UHS_SDR50	3
+#define MMC_TIMING_UHS_SDR104	4
+#define MMC_TIMING_UHS_DDR50	5
 
 	unsigned char	ddr;			/* dual data rate used */