[PATCH v3 2/4] arm64: dts: imx8dxl-evk: Add PCIe support

[Frank Li <Frank.Li@nxp.com>]

From: Richard Zhu <hongxing.zhu@nxp.com>

Add PCIe support on i.MX8DXL EVK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Change from v2 to v3
- none
chagne from v1 to v2
- supports -> support
- add space before {
---
 arch/arm64/boot/dts/freescale/imx8dxl-evk.dts | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts b/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
index 4caaecc192277..6259186cd4d92 100644
--- a/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
@@ -182,6 +182,15 @@ mii_select: regulator-4 {
 		regulator-always-on;
 	};
 
+	reg_pcieb: regulator-pcieb {
+		compatible = "regulator-fixed";
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "reg_pcieb";
+		gpio = <&pca6416_1 13 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
 	bt_sco_codec: audio-codec-bt {
 		compatible = "linux,bt-sco";
 		#sound-dai-cells = <1>;
@@ -567,6 +576,12 @@ &flexcan3 {
 	status = "okay";
 };
 
+&hsio_phy {
+	fsl,hsio-cfg = "pciea-x2-pcieb";
+	fsl,refclk-pad-mode = "output";
+	status = "okay";
+};
+
 &cm40_intmux {
 	status = "disabled";
 };
@@ -585,6 +600,16 @@ &lsio_gpio5 {
 	status = "okay";
 };
 
+&pcieb {
+	phys = <&hsio_phy 0 PHY_TYPE_PCIE 0>;
+	phy-names = "pcie-phy";
+	pinctrl-0 = <&pinctrl_pcieb>;
+	pinctrl-names = "default";
+	reset-gpio = <&lsio_gpio4 0 GPIO_ACTIVE_LOW>;
+	vpcie-supply = <&reg_pcieb>;
+	status = "okay";
+};
+
 &sai0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sai0>;
@@ -868,6 +893,14 @@ IMX8DXL_UART1_CTS_B_ADMA_UART1_CTS_B    0x06000020
 		>;
 	};
 
+	pinctrl_pcieb: pcieagrp {
+		fsl,pins = <
+			IMX8DXL_PCIE_CTRL0_PERST_B_LSIO_GPIO4_IO00	0x06000021
+			IMX8DXL_PCIE_CTRL0_CLKREQ_B_LSIO_GPIO4_IO01	0x06000021
+			IMX8DXL_PCIE_CTRL0_WAKE_B_LSIO_GPIO4_IO02	0x04000021
+		>;
+	};
+
 	pinctrl_sai0: sai0grp {
 		fsl,pins = <
 			IMX8DXL_SPI0_CS0_ADMA_SAI0_RXD		0x06000060
-- 
2.34.1