| Message ID | 20180922075238.884-5-linux.amoon@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add support for UHS-I on Exynos5422 odroid boards | expand |
diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi index 15ab380e5fcf..a80b6c045154 100644 --- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi @@ -501,6 +501,7 @@ pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus1 &sd2_bus4>; bus-width = <4>; cap-sd-highspeed; + max-frequency = <200000000>; vmmc-supply = <&ldo19_reg>; vqmmc-supply = <&ldo13_reg>; sd-uhs-sdr50;
set the max-frequency to 200MHz for optimal performace. Signed-off-by: Anand Moon <linux.amoon@gmail.com> --- This patch is new to this series. microSD card. root@odroid:~# sudo cat /sys/kernel/debug/mmc1/ios clock: 200000000 Hz actual clock: 200000000 Hz vdd: 16 (2.8 ~ 2.9 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 2 (4 bits) timing spec: 6 (sd uhs SDR104) signal voltage: 1 (1.80 V) driver type: 0 (driver type B) --- arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 1 + 1 file changed, 1 insertion(+)