arm64: dts: imx8mm-venice*: add PCIe support

[linux-2.6-microblaze.git] / arch / arm64 / boot / dts / freescale / imx8mm-venice-gw71xx.dtsi

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw71xx.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw71xx.dtsi
index 2801227..506335e 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw71xx.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw71xx.dtsi
@@ -5,6 +5,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/phy/phy-imx8-pcie.h>
 
 / {
        aliases {
@@ -33,6 +34,12 @@
                };
        };
 
+       pcie0_refclk: pcie0-refclk {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <100000000>;
+       };
+
        pps {
                compatible = "pps-gpio";
                pinctrl-names = "default";
@@ -87,6 +94,28 @@
        status = "okay";
 };
 
+&pcie_phy {
+       fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
+       fsl,clkreq-unsupported;
+       clocks = <&pcie0_refclk>;
+       status = "okay";
+};
+
+&pcie0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_pcie0>;
+       reset-gpio = <&gpio4 6 GPIO_ACTIVE_LOW>;
+       clocks = <&clk IMX8MM_CLK_PCIE1_ROOT>, <&clk IMX8MM_CLK_PCIE1_AUX>,
+                <&pcie0_refclk>;
+       clock-names = "pcie", "pcie_aux", "pcie_bus";
+       assigned-clocks = <&clk IMX8MM_CLK_PCIE1_AUX>,
+                         <&clk IMX8MM_CLK_PCIE1_CTRL>;
+       assigned-clock-rates = <10000000>, <250000000>;
+       assigned-clock-parents = <&clk IMX8MM_SYS_PLL2_50M>,
+                                <&clk IMX8MM_SYS_PLL2_250M>;
+       status = "okay";
+};
+
 /* GPS */
 &uart1 {
        pinctrl-names = "default";
@@ -148,6 +177,12 @@
                >;
        };
 
+       pinctrl_pcie0: pcie0grp {
+               fsl,pins = <
+                       MX8MM_IOMUXC_SAI1_RXD4_GPIO4_IO6        0x41
+               >;
+       };
+
        pinctrl_pps: ppsgrp {
                fsl,pins = <
                        MX8MM_IOMUXC_GPIO1_IO15_GPIO1_IO15      0x41