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 <dev@lynxeye.de>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
index 1eca3b28ac6480e8b1d628cfebfb2c58ebd24280..b6da15d823a61bcbc8d77e6c7d295306795cef09 100644 (file)
--- 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>;