diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 54829c0ed0002fcc08f193b6af6112eabd00699d..509229b48b55c3584e18d9838f67cb8b5d944ff6 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -135,6 +135,9 @@ static int mmc_ios_show(struct seq_file *s, void *data)
 	case MMC_TIMING_UHS_DDR50:
 		str = "sd uhs DDR50";
 		break;
+	case MMC_TIMING_MMC_DDR52:
+		str = "mmc DDR52";
+		break;
 	case MMC_TIMING_MMC_HS200:
 		str = "mmc high-speed SDR200";
 		break;
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 1ab5f3a0af5b734a1829e732fe91b5bef8f24d2b..e22d8515ff97ee607a28c277ca81d71ee7b594d0 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1264,7 +1264,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 					goto err;
 			}
 			mmc_card_set_ddr_mode(card);
-			mmc_set_timing(card->host, MMC_TIMING_UHS_DDR50);
+			mmc_set_timing(card->host, MMC_TIMING_MMC_DDR52);
 			mmc_set_bus_width(card->host, bus_width);
 		}
 	}
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index cb61ea4d69455366768fa04bc2263c65795bc92f..35354207e71f19a1125a2c11777f279217c9d6fe 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -58,7 +58,8 @@ struct mmc_ios {
 #define MMC_TIMING_UHS_SDR50	5
 #define MMC_TIMING_UHS_SDR104	6
 #define MMC_TIMING_UHS_DDR50	7
-#define MMC_TIMING_MMC_HS200	8
+#define MMC_TIMING_MMC_DDR52	8
+#define MMC_TIMING_MMC_HS200	9
 
 #define MMC_SDR_MODE		0
 #define MMC_1_2V_DDR_MODE	1