[PATCH v4 2/3] arm64: dts: nuvoton: ma35d1: add USB controllers and dual-port PHY node
From: Joey Lu <hidden>
Date: 2026-07-20 10:22:36
Also in:
linux-devicetree, linux-phy, lkml
Subsystem:
arm/nuvoton ma35 architecture, arm/nuvoton npcm architecture, the rest · Maintainers:
Jacky Huang, Shan-Chun Hung, Andrew Jeffery, Avi Fishman, Tomer Maimon, Tali Perry, Linus Torvalds
Add the USB subsystem nodes for the MA35D1 SoC and boards:
- usb_phy: standalone PHY node with #phy-cells = <1>, covering both
the OTG port (PHY0, index 0) and the host-only port (PHY1, index 1).
Uses nuvoton,sys phandle and HUSBH0_GATE clock per the binding.
- usb (DWC2 gadget, USB0): phys = <&usb_phy 0>, dr_mode = peripheral.
- ehci0/ohci0 (USB0 host): phys = <&usb_phy 0>, companion pairing.
- ehci1/ohci1 (USB1 host): phys = <&usb_phy 1>.
Board files (ma35d1-som-256m.dts, ma35d1-iot-512m.dts) add pinctrl for
VBUSVLD, PWREN and OVC signals and enable all USB nodes.
Signed-off-by: Joey Lu <redacted>
---
.../boot/dts/nuvoton/ma35d1-iot-512m.dts | 36 ++++++++++
.../boot/dts/nuvoton/ma35d1-som-256m.dts | 36 ++++++++++
arch/arm64/boot/dts/nuvoton/ma35d1.dtsi | 65 +++++++++++++++++++
3 files changed, 137 insertions(+)
diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts b/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts
index 78534d613486..0a068abda6e0 100644
--- a/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts
+++ b/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts@@ -97,6 +97,16 @@ pinctrl_uart14: uart14-pins { power-source = <1>; }; }; + + hsusb { + pinctrl_hsusb: hsusb-pins { + nuvoton,pins = <5 15 1>, /* VBUSVLD */ + <11 12 9>, /* PWREN */ + <11 13 9>; /* OVC */ + bias-disable; + power-source = <1>; + }; + }; }; &uart0 {
@@ -151,3 +161,29 @@ eth_phy1: ethernet-phy@1 { reg = <1>; }; }; + +&usb_phy { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_hsusb>; + status = "okay"; +}; + +&usb { + status = "okay"; +}; + +&ehci0 { + status = "okay"; +}; + +&ehci1 { + status = "okay"; +}; + +&ohci0 { + status = "okay"; +}; + +&ohci1 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts b/arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts
index a029b660e8dc..7f1e6d2a1fc2 100644
--- a/arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts
+++ b/arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts@@ -100,6 +100,16 @@ pinctrl_uart16: uart16-pins { power-source = <1>; }; }; + + hsusb { + pinctrl_hsusb: hsusb-pins { + nuvoton,pins = <5 15 1>, /* VBUSVLD */ + <11 12 9>, /* PWREN */ + <11 13 9>; /* OVC */ + bias-disable; + power-source = <1>; + }; + }; }; &uart0 {
@@ -153,3 +163,29 @@ eth_phy1: ethernet-phy@1 { reg = <1>; }; }; + +&usb_phy { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_hsusb>; + status = "okay"; +}; + +&usb { + status = "okay"; +}; + +&ehci0 { + status = "okay"; +}; + +&ehci1 { + status = "okay"; +}; + +&ohci0 { + status = "okay"; +}; + +&ohci1 { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi b/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
index 7228ad4735b5..5a7a39b1b514 100644
--- a/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
+++ b/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi@@ -88,6 +88,14 @@ sys: system-management@40460000 { #reset-cells = <1>; }; + usb_phy: usb-phy { + compatible = "nuvoton,ma35d1-usb2-phy"; + clocks = <&clk HUSBH0_GATE>; + nuvoton,sys = <&sys>; + #phy-cells = <1>; + status = "disabled"; + }; + clk: clock-controller@40460200 { compatible = "nuvoton,ma35d1-clk"; reg = <0x00000000 0x40460200 0x0 0x100>;
@@ -431,5 +439,62 @@ mdio1: mdio { #size-cells = <0>; }; }; + + usb: usb@40200000 { + compatible = "snps,dwc2"; + reg = <0x0 0x40200000 0x0 0x1000>; + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk USBD_GATE>; + clock-names = "otg"; + phys = <&usb_phy 0>; + phy-names = "usb2-phy"; + dr_mode = "peripheral"; + g-np-tx-fifo-size = <16>; + g-rx-fifo-size = <0x100>; + g-tx-fifo-size = <256 256 64 64 64 32 32 32>; + status = "disabled"; + }; + + ehci0: usb@40140000 { + compatible = "generic-ehci"; + reg = <0x0 0x40140000 0x0 0x1000>; + interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk HUSBH0_GATE>; + phys = <&usb_phy 0>; + phy-names = "usb"; + companion = <&ohci0>; + status = "disabled"; + }; + + ehci1: usb@401c0000 { + compatible = "generic-ehci"; + reg = <0x0 0x401c0000 0x0 0x1000>; + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk HUSBH1_GATE>; + phys = <&usb_phy 1>; + phy-names = "usb"; + companion = <&ohci1>; + status = "disabled"; + }; + + ohci0: usb@40150000 { + compatible = "generic-ohci"; + reg = <0x0 0x40150000 0x0 0x1000>; + interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk HUSBH0_GATE>; + phys = <&usb_phy 0>; + phy-names = "usb"; + status = "disabled"; + }; + + ohci1: usb@401d0000 { + compatible = "generic-ohci"; + reg = <0x0 0x401d0000 0x0 0x1000>; + interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk HUSBH1_GATE>; + phys = <&usb_phy 1>; + phy-names = "usb"; + status = "disabled"; + }; }; };
--
2.43.0