arm64: dts: r8a7796: salvator: enable on board eMMC

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/r8a7796-salvator-x.dts

@@ -31,6 +31,24 @@ memory@48000000 {
 		reg = <0x0 0x48000000 0x0 0x78000000>;
 	};
 
+	reg_1p8v: regulator0 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_3p3v: regulator1 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
 	vcc_sdhi0: regulator-vcc-sdhi0 {
 		compatible = "regulator-fixed";
 
@@ -78,7 +96,6 @@ vccq_sdhi3: regulator-vccq-sdhi3 {
 		states = <3300000 1
 			  1800000 0>;
 	};
-
 };
 
 &pfc {
@@ -106,6 +123,18 @@ sdhi0_pins_uhs: sd0_uhs {
 		power-source = <1800>;
 	};
 
+	sdhi2_pins: sd2 {
+		groups = "sdhi2_data8", "sdhi2_ctrl";
+		function = "sdhi2";
+		power-source = <3300>;
+	};
+
+	sdhi2_pins_uhs: sd2_uhs {
+		groups = "sdhi2_data8", "sdhi2_ctrl";
+		function = "sdhi2";
+		power-source = <1800>;
+	};
+
 	sdhi3_pins: sd3 {
 		groups = "sdhi3_data4", "sdhi3_ctrl";
 		function = "sdhi3";
@@ -141,6 +170,19 @@ &sdhi0 {
 	status = "okay";
 };
 
+&sdhi2 {
+	/* used for on-board 8bit eMMC */
+	pinctrl-0 = <&sdhi2_pins>;
+	pinctrl-1 = <&sdhi2_pins_uhs>;
+	pinctrl-names = "default", "state_uhs";
+
+	vmmc-supply = <&reg_3p3v>;
+	vqmmc-supply = <&reg_1p8v>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
 &sdhi3 {
 	pinctrl-0 = <&sdhi3_pins>;
 	pinctrl-1 = <&sdhi3_pins_uhs>;