arm64: dts: mediatek: mt7981b-openwrt-one: Enable PCIe and USB

Enable the PCIe controller and USB3 XHCI host on the OpenWrt One
board. The USB controller is configured for USB 2.0 only mode, as the
shared USB3/PCIe PHY is dedicated to PCIe functionality on this board.

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
index 2e39e72877301771222dd9005e1c7646c83e0058..7382599cfea299d61c17b7739f19707acacd1e30 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
@@ -67,9 +67,40 @@
                        linux,default-trigger = "netdev";
                };
        };
+
+       reg_3p3v: regulator-3p3v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-3.3V";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
+       reg_5v: regulator-5v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-5V";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+};
+
+&pcie {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pcie_pins>;
+       status = "okay";
 };
 
 &pio {
+       pcie_pins: pcie-pins {
+               mux {
+                       function = "pcie";
+                       groups = "pcie_pereset";
+               };
+       };
+
        pwm_pins: pwm-pins {
                mux {
                        function = "pwm";
@@ -163,3 +194,15 @@
 &uart0 {
        status = "okay";
 };
+
+&usb_phy {
+       status = "okay";
+};
+
+&xhci {
+       phys = <&u2port0 PHY_TYPE_USB2>;
+       vusb33-supply = <&reg_3p3v>;
+       vbus-supply = <&reg_5v>;
+       mediatek,u3p-dis-msk = <0x01>;
+       status = "okay";
+};