[PATCH v2 07/15] arm64: dts: mediatek: mt7981b-openwrt-one: Enable PCIe and USB
From: Sjoerd Simons <hidden>
Date: 2025-11-01 13:33:04
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek, linux-pci, linux-phy, lkml
Subsystem:
arm/mediatek soc support, the rest · Maintainers:
Matthias Brugger, AngeloGioacchino Del Regno, Linus Torvalds
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 <redacted> --- .../boot/dts/mediatek/mt7981b-openwrt-one.dts | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
index 968b91f55bb27..5834273839c17 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts@@ -20,8 +20,53 @@ memory@40000000 { reg = <0 0x40000000 0 0x40000000>; device_type = "memory"; }; + + 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"; + }; + }; }; &uart0 { status = "okay"; }; + +&usb_phy { + status = "okay"; +}; + +&xhci { + phys = <&u2port0 PHY_TYPE_USB2>; + vusb33-supply = <®_3p3v>; + vbus-supply = <®_5v>; + mediatek,u3p-dis-msk = <0x01>; + status = "okay"; +};
--
2.51.0