From 73b73af99a49fd7bf0515741734660973fa2002a Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Date: Wed, 19 Nov 2025 16:35:22 +0200
Subject: [PATCH] arm64: dts: renesas: rzg3s-smarc: Enable PCIe

The RZ Smarc Carrier-II board has PCIe headers mounted on it. Enable PCIe
support.

Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20251119143523.977085-6-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
index 6b0bb2c441af5..70af605168b07 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
@@ -155,6 +155,12 @@
 	status = "okay";
 };
 
+&pcie {
+	pinctrl-0 = <&pcie_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &phyrst {
 	status = "okay";
 };
@@ -186,6 +192,11 @@
 		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 */
-- 
2.47.3