diff mbox series

[PATCHv3,6/7] ARM: dts: exynos5422: update maximum frequency for emmc to 200MHz

Message ID 20180920175826.1284-7-linux.amoon@gmail.com (mailing list archive)
State New, archived
Headers show
Series Add support for UHS-I on Exynos5422 odroid boards | expand

Commit Message

Anand Moon Sept. 20, 2018, 5:58 p.m. UTC 
set the max-frequency to 200MHz for optimal performace of eMMC.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
This patch is new to this series.

MMC
root@odroid:~# sudo cat /sys/kernel/debug/mmc0/ios
clock:          200000000 Hz
actual clock:   200000000 Hz
vdd:            7 (1.65 - 1.95 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      3 (8 bits)
timing spec:    10 (mmc HS400)
signal voltage: 1 (1.80 V)
driver type:    0 (driver type B)
---
 arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 96e281c0a118..5748f840becc 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -386,6 +386,7 @@ 
 	cap-mmc-highspeed;
 	mmc-hs200-1_8v;
 	mmc-hs400-1_8v;
+	max-frequency = <200000000>;
 	vmmc-supply = <&ldo18_reg>;
 	vqmmc-supply = <&ldo3_reg>;
 };