ARM: dts: k3-j7200: Add wkup gpio node

Add wkup_gpio0 node required for detecting whether board mux is set
HyperFlash.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
diff --git a/arch/arm/dts/k3-j7200-common-proc-board.dts b/arch/arm/dts/k3-j7200-common-proc-board.dts
index 969881f..15ac3cb 100644
--- a/arch/arm/dts/k3-j7200-common-proc-board.dts
+++ b/arch/arm/dts/k3-j7200-common-proc-board.dts
@@ -21,6 +21,12 @@
 			J721E_WKUP_IOPAD(0x104, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */
 		>;
 	};
+
+	wkup_gpio_pins_default: wkup-gpio-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xd8, PIN_INPUT, 7) /* (C14) WKUP_GPIO0_6 */
+		>;
+	};
 };
 
 &main_pmx0 {
@@ -139,3 +145,8 @@
 	dr_mode = "otg";
 	maximum-speed = "high-speed";
 };
+
+&wkup_gpio0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&wkup_gpio_pins_default>;
+};
diff --git a/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi b/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi
index 4bcb65a..d590079 100644
--- a/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi
@@ -114,4 +114,16 @@
 		clocks = <&k3_clks 195 1>;
 		power-domains = <&k3_pds 195 TI_SCI_PD_EXCLUSIVE>;
 	};
+
+	wkup_gpio0: gpio@42110000 {
+		compatible = "ti,j721e-gpio", "ti,keystone-gpio";
+		reg = <0x0 0x42110000 0x0 0x100>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		ti,ngpio = <84>;
+		ti,davinci-gpio-unbanked = <0>;
+		power-domains = <&k3_pds 113 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 113 0>;
+		clock-names = "gpio";
+	};
 };