linux-kernel - [PATCH v2 4/4] arm64: dts: imx95-19x19-evk: add PCIe[0,1] support

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Date: Thu, 20 Jun 2024 12:16:22 -0400
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	imx@...ts.linux.dev (open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 4/4] arm64: dts: imx95-19x19-evk: add PCIe[0,1] support

Add PCIe[0,1] and all dependent nodes.

Signed-off-by: Frank Li <Frank.Li@....com>
---
Change from v1 to v2
- remove regulator-always-on
---
 .../boot/dts/freescale/imx95-19x19-evk.dts    | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index 750a5255b57ce..d14a54ab4fd47 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -40,6 +40,34 @@ linux_cma: linux,cma {
 		};
 	};
 
+	reg_m2_pwr: regulator-m2-pwr {
+		compatible = "regulator-fixed";
+		regulator-name = "M.2-power";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&i2c7_pcal6524 20 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_pcie0: regulator-pcie {
+		compatible = "regulator-fixed";
+		regulator-name = "PCIE_WLAN_EN";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&reg_m2_pwr>;
+		gpio = <&i2c7_pcal6524 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_slot_pwr: regulator-slot-pwr {
+		compatible = "regulator-fixed";
+		regulator-name = "PCIe slot-power";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&i2c7_pcal6524 14 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2 {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -84,6 +112,22 @@ &mu7 {
 	status = "okay";
 };
 
+&pcie0 {
+	pinctrl-0 = <&pinctrl_pcie0>;
+	pinctrl-names = "default";
+	reset-gpio = <&i2c7_pcal6524 5 GPIO_ACTIVE_LOW>;
+	vpcie-supply = <&reg_pcie0>;
+	status = "okay";
+};
+
+&pcie1 {
+	pinctrl-0 = <&pinctrl_pcie1>;
+	pinctrl-names = "default";
+	reset-gpio = <&i2c7_pcal6524 16 GPIO_ACTIVE_LOW>;
+	vpcie-supply = <&reg_slot_pwr>;
+	status = "okay";
+};
+
 &usdhc1 {
 	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
 	pinctrl-0 = <&pinctrl_usdhc1>;
@@ -128,6 +172,18 @@ IMX95_PAD_GPIO_IO09__LPI2C7_SCL			0x40000b9e
 		>;
 	};
 
+	pinctrl_pcie0: pcie0grp {
+		fsl,pins = <
+			IMX95_PAD_GPIO_IO32__HSIOMIX_TOP_PCIE1_CLKREQ_B		0x4000031e
+		>;
+	};
+
+	pinctrl_pcie1: pcie1grp {
+		fsl,pins = <
+			IMX95_PAD_GPIO_IO35__HSIOMIX_TOP_PCIE2_CLKREQ_B		0x4000031e
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			IMX95_PAD_UART1_RXD__AONMIX_TOP_LPUART1_RX      0x31e
-- 
2.34.1