arm64: dts: rockchip: rock-5b: add PCIe2 (M.2 E key) support

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>

arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts

@@ -79,6 +79,19 @@
 		pinctrl-0 = <&pcie3_vcc3v3_en>;
 	};
 
+	vcc3v3_wf: vcc3v3-wf-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_wf";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <5000>;
+		enable-active-high;
+		gpio = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
+		vin-supply = <&vcc5v0_sys>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ekey_en>;
+	};
+
 	vcc5v0_sys: vcc5v0-sys-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc5v0_sys";
@@ -103,6 +116,10 @@
 	status = "okay";
 };
 
+&combphy1_ps {
+	status = "okay";
+};
+
 &cpu_b0 {
 	cpu-supply = <&vdd_cpu_big0_s0>;
 	mem-supply = <&vdd_cpu_big0_mem_s0>;
@@ -237,6 +254,14 @@
 	};
 };
 
+&pcie2x1l0 {
+	reset-gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc3v3_wf>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie30x1m1_pins>;
+	status = "okay";
+};
+
 &pcie2x1l2 {
 	reset-gpios = <&gpio3 RK_PB0 GPIO_ACTIVE_HIGH>;
 	vpcie3v3-supply = <&vcc3v3_pcie2x1l2>;
@@ -277,6 +302,10 @@
 	};
 
 	pcie2 {
+		ekey_en: ekey-en {
+			rockchip,pins = <1 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
 		pcie2_2_rst: pcie2-2-rst {
 			rockchip,pins = <3 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
 		};