From 945413212894c703fe5ed20edef7e99bfd0cf932 Mon Sep 17 00:00:00 2001
From: Benjamin Hahn <B.Hahn@phytec.de>
Date: Fri, 23 Aug 2024 10:01:32 +0200
Subject: [PATCH] arm64: dts: imx8mp-phyboard-pollux-rdk: Add support for PCIe

Add support for the Mini PCIe slot.

Signed-off-by: Benjamin Hahn <B.Hahn@phytec.de>
Reviewed-by: Yannic Moog <y.moog@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---
 .../freescale/imx8mp-phyboard-pollux-rdk.dts  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
index f7ac9a0b5ff0..50debe821c42 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/phy/phy-imx8-pcie.h>
 #include <dt-bindings/leds/leds-pca9532.h>
 #include <dt-bindings/pwm/pwm.h>
 #include "imx8mp-phycore-som.dtsi"
@@ -221,6 +222,23 @@
 	status = "okay";
 };
 
+&pcie_phy {
+	clocks = <&hsio_blk_ctrl>;
+	clock-names = "ref";
+	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_OUTPUT>;
+	fsl,clkreq-unsupported;
+	status = "okay";
+};
+
+/* Mini PCIe */
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pcie0>;
+	reset-gpio = <&gpio1 8 GPIO_ACTIVE_LOW>;
+	vpcie-supply = <&reg_vcc_3v3_sw>;
+	status = "okay";
+};
+
 &pwm3 {
 	status = "okay";
 	pinctrl-names = "default";
@@ -405,6 +423,15 @@
 		>;
 	};
 
+	pinctrl_pcie0: pcie0grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO08__GPIO1_IO08     0x40
+			MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10     0x60
+			MX8MP_IOMUXC_GPIO1_IO11__GPIO1_IO11	0x60 /* open drain, pull up */
+			MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14     0x40
+		>;
+	};
+
 	pinctrl_pwm3: pwm3grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_SPDIF_TX__PWM3_OUT		0x12
-- 
2.25.1