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arm64: dts: marvell: armada-3720-db: Add vqmmc regulator for SD slot 

By adding this regulator, the SD cards are usable at higher speed
protocols such as SDR104.

This patch was tested with an SD HC card compatible with UHS-I.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
This commit is contained in:
Gregory CLEMENT 2017-06-08 12:29:51 +02:00
parent 1208d2f0c8
commit 07d065abf9
1 changed files with 15 additions and 0 deletions
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15
arch/arm64/boot/dts/marvell/armada-3720-db.dts
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@ -80,6 +80,20 @@ usb3_phy: usb3-phy {
compatible = "usb-nop-xceiv";
vcc-supply = <&exp_usb3_vbus>;
};
vcc_sd_reg1: regulator {
compatible = "regulator-gpio";
regulator-name = "vcc_sd1";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
gpios = <&gpiosb 23 GPIO_ACTIVE_HIGH>;
gpios-states = <0>;
states = <1800000 0x1
3300000 0x0>;
enable-active-high;
};
};
/* Gigabit module on CON19(V2.0)/CON21(V1.4) */
@ -164,6 +178,7 @@ &sdhci1 {
cd-gpios = <&gpiosb 2 GPIO_ACTIVE_LOW>;
bus-width = <4>;
marvell,pad-type = "sd";
vqmmc-supply = <&vcc_sd_reg1>;
status = "okay";
};