From 07d065abf93dbced17d189f7c830467ca559c81d Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@free-electrons.com>
Date: Thu, 8 Jun 2017 12:29:51 +0200
Subject: [PATCH] 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>
---
arch/arm64/boot/dts/marvell/armada-3720-db.dts | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
index eab3bc7e6382..9df0f06ce607 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
@@ -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";
};
--
2.49.0