ARM: tegra: beaver: Allow SD card voltage to be changed

This allows to switch the card signal voltage level to 1.8 V, which is needed for any ultra high speed modes to work. Signed-off-by: Lucas Stach <[email protected]> Acked-by: Jon Hunter <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Signed-off-by: Olof Johansson <[email protected]>
mrcsosa · Jul 7, 2016 · 5eb4953 · 5eb4953
1 parent 3867b22
commit 5eb4953
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -1843,7 +1843,7 @@
 
 				ldo5_reg: ldo5 {
 					regulator-name = "vddio_sdmmc,avdd_vdac";
-					regulator-min-microvolt = <3300000>;
+					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <3300000>;
 					regulator-always-on;
 				};
@@ -1914,6 +1914,7 @@
 
 	sdhci@78000000 {
 		status = "okay";
+		vqmmc-supply = <&ldo5_reg>;
 		cd-gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
 		wp-gpios = <&gpio TEGRA_GPIO(T, 3) GPIO_ACTIVE_HIGH>;
 		power-gpios = <&gpio TEGRA_GPIO(D, 7) GPIO_ACTIVE_HIGH>;