| Message ID | 20180922075238.884-7-linux.amoon@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for UHS-I on Exynos5422 odroid boards | expand |
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index e522edb2bb82..1f2d3987dde1 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -392,6 +392,7 @@ cap-mmc-highspeed; mmc-hs200-1_8v; mmc-hs400-1_8v; + max-frequency = <200000000>; vmmc-supply = <&ldo18_reg>; vqmmc-supply = <&ldo3_reg>; };
Set the max-frequency to 200MHz for optimal performace of eMMC. Signed-off-by: Anand Moon <linux.amoon@gmail.com> --- eMMC 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(+)