arm64: dts: rockchip: Enable PCIe for ArmSoM Sige1

Enable the RTL8125 network controller and corresponding PHY
connected via PCIe on the ArmSoM Sige1.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://patch.msgid.link/20260106100000.225445-1-amadeus@jmu.edu.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: aiamadeus

arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts

@@ -232,6 +232,10 @@
 	};
 };
 
+&combphy {
+	status = "okay";
+};
+
 &cpu0 {
 	cpu-supply = <&vdd_arm>;
 };
@@ -293,6 +297,14 @@
 	};
 };
 
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie20_perstn>;
+	reset-gpios = <&gpio4 RK_PA4 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc_3v3>;
+	status = "okay";
+};
+
 &pinctrl {
 	bluetooth {
 		bt_reg_on_h: bt-reg-on-h {
@@ -324,6 +336,12 @@
 		};
 	};
 
+	pcie {
+		pcie20_perstn: pcie20-perstn {
+			rockchip,pins = <4 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	rtc {
 		rtc_int_l: rtc-int-l {
 			rockchip,pins = <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;