arm64: dts: r8a7795: salvator-x: enable SDHI0 & 3

Add the exposed SD card slots. The on-board eMMC needs to wait until we
fixed the 8bit support.
Signed-off-by: Ai Kyuse <ai.kyuse.uw@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts

@@ -33,6 +33,7 @@
 
 /dts-v1/;
 #include "r8a7795.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Renesas Salvator-X board based on r8a7795";
@@ -61,6 +62,54 @@ x12_clk: x12_clk {
 		clock-frequency = <24576000>;
 	};
 
+	vcc_sdhi0: regulator@1 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI0 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	vccq_sdhi0: regulator@2 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI0 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+		gpios-states = <1>;
+		states = <3300000 1
+			  1800000 0>;
+	};
+
+	vcc_sdhi3: regulator@3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI3 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&gpio3 15 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	vccq_sdhi3: regulator@4 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI3 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
+		gpios-states = <1>;
+		states = <3300000 1
+			  1800000 0>;
+	};
+
 	audio_clkout: audio_clkout {
 		/*
 		 * This is same as <&rcar_sound 0>
@@ -119,6 +168,16 @@ avb_pins: avb {
 		renesas,function = "avb";
 	};
 
+	sdhi0_pins: sd0 {
+		renesas,groups = "sdhi0_data4", "sdhi0_ctrl";
+		renesas,function = "sdhi0";
+	};
+
+	sdhi3_pins: sd3 {
+		renesas,groups = "sdhi3_data4", "sdhi3_ctrl";
+		renesas,function = "sdhi3";
+	};
+
 	sound_pins: sound {
 		renesas,groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
 		renesas,function = "ssi";
@@ -228,6 +287,30 @@ &sata {
 	status = "okay";
 };
 
+&sdhi0 {
+	pinctrl-0 = <&sdhi0_pins>;
+	pinctrl-names = "default";
+
+	vmmc-supply = <&vcc_sdhi0>;
+	vqmmc-supply = <&vccq_sdhi0>;
+	cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&sdhi3 {
+	pinctrl-0 = <&sdhi3_pins>;
+	pinctrl-names = "default";
+
+	vmmc-supply = <&vcc_sdhi3>;
+	vqmmc-supply = <&vccq_sdhi3>;
+	cd-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
+	bus-width = <4>;
+	status = "okay";
+};
+
 &ssi1 {
 	shared-pin;
 };