linux-kernel - [PATCH 1/1] arm64: dts: rockchip: Enable PCIe for ArmSoM Sige1

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Message-Id: <20260106100000.225445-1-amadeus@jmu.edu.cn>
Date: Tue,  6 Jan 2026 18:00:00 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: Heiko Stuebner <heiko@...ech.de>
Cc: Rob Herring <robh@...nel.org>,
	Chukun Pan <amadeus@....edu.cn>,
	Jonas Karlman <jonas@...boo.se>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH 1/1] 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@....edu.cn>
---
 .../boot/dts/rockchip/rk3528-armsom-sige1.dts  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts b/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
index 6e21579365a5..c41af8fc0c8d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3528-armsom-sige1.dts
@@ -232,6 +232,10 @@ sdio_pwrseq: sdio-pwrseq {
 	};
 };
 
+&combphy {
+	status = "okay";
+};
+
 &cpu0 {
 	cpu-supply = <&vdd_arm>;
 };
@@ -293,6 +297,14 @@ rgmii_phy: ethernet-phy@1 {
 	};
 };
 
+&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 @@ r_led: r-led {
 		};
 	};
 
+	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>;
-- 
2.25.1