diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
index 6b0bb2c441af..70af605168b0 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
@@ -155,6 +155,12 @@ &ohci1 {
 	status = "okay";
 };
 
+&pcie {
+	pinctrl-0 = <&pcie_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &phyrst {
 	status = "okay";
 };
@@ -186,6 +192,11 @@ key-3-gpio-hog {
 		line-name = "key-3-gpio-irq";
 	};
 
+	pcie_pins: pcie {
+		pinmux = <RZG2L_PORT_PINMUX(13, 2, 2)>, /* PCIE_RST_OUT_B */
+			 <RZG2L_PORT_PINMUX(13, 3, 2)>; /* PCIE_CLKREQ_B */
+	};
+
 	scif0_pins: scif0 {
 		pinmux = <RZG2L_PORT_PINMUX(6, 3, 1)>, /* RXD */
 			 <RZG2L_PORT_PINMUX(6, 4, 1)>; /* TXD */