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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>
hifive-unleashed-5.1
Lucas Stach 2016-06-30 17:32:08 +02:00 committed by Olof Johansson
parent 3867b228d6
commit 5eb495349f
1 changed files with 2 additions and 1 deletions
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3
arch/arm/boot/dts/tegra30-beaver.dts
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@ -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>;