[PATCH 1/2] ARM: dts: rockchip: Support UHS mode for SD card on PopMetal-RK3288 board

[Shawn Lin]

PopMetal-RK3288 board could enable SD3.0 card but need vccio_sd
to support the voltage range from 1V8 to 3V3 and we also need to
add more UHS mode here.

Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
---

 arch/arm/boot/dts/rk3288-popmetal.dts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/rk3288-popmetal.dts b/arch/arm/boot/dts/rk3288-popmetal.dts
index 23003a2..3831cd5 100644
--- a/arch/arm/boot/dts/rk3288-popmetal.dts
+++ b/arch/arm/boot/dts/rk3288-popmetal.dts
@@ -165,6 +165,10 @@
 	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
 	vmmc-supply = <&vcc_sd>;
 	vqmmc-supply = <&vccio_sd>;
 	status = "okay";
@@ -280,7 +284,7 @@
 			vccio_sd: LDO_REG2 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <3300000>;
+				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-name = "vccio_sd";
 				regulator-state-mem {
-- 
2.3.7