mmc: clarify DDR timing mode between SD-UHS and eMMC
This change distinguishes DDR timing mode of current
mixed usage to clarify device type.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 54829c0..509229b 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -135,6 +135,9 @@
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 1ab5f3a..e22d851 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1264,7 +1264,7 @@
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 cb61ea4..3535420 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -58,7 +58,8 @@
#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
