[PATCH v6 5/5] arm64: dts: imx943-evk: Add pcie[0,1] and pcie-ep[0,1] support

[Richard Zhu]

Add pcie[0,1] and pcie-ep[0,1] support.

Signed-off-by: Richard Zhu <hongxing.zhu@xxxxxxx>
---
 arch/arm64/boot/dts/freescale/Makefile       |  4 +
 arch/arm64/boot/dts/freescale/imx943-evk.dts | 82 ++++++++++++++++++++
 2 files changed, 86 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 25793aa7c0ab..0885e67e0cfa 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -451,6 +451,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk-sof.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-toradex-smarc-dev.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-tqma9596sa-mb-smarc-2.dtb
 
+imx943-evk-pcie0-ep-dtbs += imx943-evk.dtb imx-pcie0-ep.dtbo
+imx943-evk-pcie1-ep-dtbs += imx943-evk.dtb imx-pcie1-ep.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx943-evk-pcie0-ep.dtb imx943-evk-pcie1-ep.dtb
+
 imx95-15x15-evk-pcie0-ep-dtbs = imx95-15x15-evk.dtb imx-pcie0-ep.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk-pcie0-ep.dtb
 imx95-19x19-evk-pcie0-ep-dtbs += imx95-19x19-evk.dtb imx-pcie0-ep.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx943-evk.dts b/arch/arm64/boot/dts/freescale/imx943-evk.dts
index c8ceabe3d923..f69c0b60b039 100644
--- a/arch/arm64/boot/dts/freescale/imx943-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx943-evk.dts
@@ -50,6 +50,20 @@ chosen {
 		stdout-path = &lpuart1;
 	};
 
+	pcie_ref_clk: clock-pcie-ref {
+		compatible = "gpio-gate-clock";
+		clocks = <&xtal25m>;
+		#clock-cells = <0>;
+		enable-gpios = <&pca9670_i2c3 7 GPIO_ACTIVE_LOW>;
+	};
+
+	xtal25m: clock-xtal25m {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+		clock-output-names = "xtal_25MHz";
+	};
+
 	dmic: dmic {
 		compatible = "dmic-codec";
 		#sound-dai-cells = <0>;
@@ -71,6 +85,15 @@ reg_m2_pwr: regulator-m2-pwr {
 		startup-delay-us = <5000>;
 	};
 
+	reg_slot_pwr: regulator-slot-pwr {
+		compatible = "regulator-fixed";
+		regulator-name = "PCIe slot-power";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&pcal6416_i2c3_u46 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	reg_m2_wlan: regulator-wlan {
 		compatible = "regulator-fixed";
 		regulator-name = "WLAN_EN";
@@ -653,6 +676,18 @@ IMX94_PAD_GPIO_IO28__LPI2C6_SCL		0x40000b9e
 		>;
 	};
 
+	pinctrl_pcie0: pcie0grp {
+		fsl,pins = <
+			IMX94_PAD_GPIO_IO20__PCIE1_CLKREQ_B	0x4000031e
+		>;
+	};
+
+	pinctrl_pcie1: pcie1grp {
+		fsl,pins = <
+			IMX94_PAD_GPIO_IO23__PCIE2_CLKREQ_B	0x4000031e
+		>;
+	};
+
 	pinctrl_pdm: pdmgrp {
 		fsl,pins = <
 			IMX94_PAD_PDM_CLK__PDM_CLK			0x31e
@@ -821,6 +856,53 @@ IMX94_PAD_XSPI1_DQS__XSPI1_A_DQS	0x3fe
 	};
 };
 
+&pcie0 {
+	pinctrl-0 = <&pinctrl_pcie0>;
+	pinctrl-names = "default";
+	clocks = <&scmi_clk IMX94_CLK_HSIO>,
+		 <&scmi_clk IMX94_CLK_HSIOPLL>,
+		 <&scmi_clk IMX94_CLK_HSIOPLL_VCO>,
+		 <&scmi_clk IMX94_CLK_HSIOPCIEAUX>,
+		 <&hsio_blk_ctl 0>,
+		 <&pcie_ref_clk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux",
+		      "ref", "extref";
+	reset-gpio = <&pcal6416_i2c3_u46 3 GPIO_ACTIVE_LOW>;
+	vpcie3v3aux-supply = <&reg_m2_wlan>;
+	supports-clkreq;
+	status = "okay";
+};
+
+&pcie0_ep {
+	pinctrl-0 = <&pinctrl_pcie0>;
+	pinctrl-names = "default";
+	vpcie-supply = <&reg_m2_wlan>;
+	status = "disabled";
+};
+
+&pcie1 {
+	pinctrl-0 = <&pinctrl_pcie1>;
+	pinctrl-names = "default";
+	clocks = <&scmi_clk IMX94_CLK_HSIO>,
+		 <&scmi_clk IMX94_CLK_HSIOPLL>,
+		 <&scmi_clk IMX94_CLK_HSIOPLL_VCO>,
+		 <&scmi_clk IMX94_CLK_HSIOPCIEAUX>,
+		 <&hsio_blk_ctl 0>,
+		 <&pcie_ref_clk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux",
+		      "ref", "extref";
+	reset-gpio = <&pcal6416_i2c3_u46 1 GPIO_ACTIVE_LOW>;
+	vpcie3v3aux-supply = <&reg_slot_pwr>;
+	status = "okay";
+};
+
+&pcie1_ep {
+	pinctrl-0 = <&pinctrl_pcie1>;
+	pinctrl-names = "default";
+	vpcie-supply = <&reg_slot_pwr>;
+	status = "disabled";
+};
+
 &usdhc1 {
 	pinctrl-0 = <&pinctrl_usdhc1>;
 	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
-- 
2.37.1