ARM: dts: am437x gp-evm: add sd card dt nodes

enable sd card slot on am437x-gp-evm
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am437x-gp-evm.dts

@@ -19,6 +19,14 @@ / {
 	model = "TI AM437x GP EVM";
 	compatible = "ti,am437x-gp-evm","ti,am4372","ti,am43";
 
+	vmmcsd_fixed: fixedregulator-sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmcsd_fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+	};
+
 	backlight {
 		compatible = "pwm-backlight";
 		pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
@@ -62,6 +70,12 @@ i2c1_pins: i2c1_pins {
 		>;
 	};
 
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			0x160 (PIN_INPUT | MUX_MODE7) /* spi0_cs1.gpio0_6 */
+		>;
+	};
+
 	ecap0_pins: backlight_pins {
 		pinctrl-single,pins = <
 			0x164 MUX_MODE0       /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
@@ -91,6 +105,10 @@ &ecap0 {
 	pinctrl-0 = <&ecap0_pins>;
 };
 
+&gpio0 {
+	status = "okay";
+};
+
 &gpio3 {
 	status = "okay";
 };
@@ -98,3 +116,12 @@ &gpio3 {
 &gpio4 {
 	status = "okay";
 };
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&vmmcsd_fixed>;
+	bus-width = <4>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+};