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

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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 @@
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 @@
cd-gpios = <&gpiosb 2 GPIO_ACTIVE_LOW>;
bus-width = <4>;
marvell,pad-type = "sd";
vqmmc-supply = <&vcc_sd_reg1>;
status = "okay";
};