[PATCH 2/3] arm64: dts: nuvoton: ma35d1: add USB controllers and dual-port PHY node

[Joey Lu <a0987203069@gmail.com>]

Add device tree nodes for the MA35D1 USB subsystem:

  - sys node gains simple-mfd + address/size-cells so it can contain
    the usb-phy@60 child.

  - usb-phy@60 is added as a child of sys, using the combined
    nuvoton,ma35d1-usb2-phy driver with #phy-cells = <1>.  No clock
    properties: clock gating is handled by each controller node.

  - DWC2 gadget (usb@40200000), EHCI0/1, and OHCI0/1 nodes are
    added.  Each controller names its clock gate directly and
    references the PHY by index (0 for the OTG port, 1 for the
    dedicated host port).

  - Board files (ma35d1-som-256m.dts, ma35d1-iot-512m.dts) enable the
    PHY, dwc2, ehci0/1, and ohci0/1 nodes and add pinctrl for the
    HSUSB signals (VBUSVLD, PWREN, OVC).

Signed-off-by: Joey Lu <a0987203069@gmail.com>
---
 .../boot/dts/nuvoton/ma35d1-iot-512m.dts      | 36 ++++++++++
 .../boot/dts/nuvoton/ma35d1-som-256m.dts      | 36 ++++++++++
 arch/arm64/boot/dts/nuvoton/ma35d1.dtsi       | 68 ++++++++++++++++++-
 3 files changed, 139 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts b/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts
index 9482bec1aa57..32fea36da7f4 100644
--- a/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts
+++ b/arch/arm64/boot/dts/nuvoton/ma35d1-iot-512m.dts
@@ -95,6 +95,16 @@ 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 {
@@ -126,3 +136,29 @@ &uart14 {
 	pinctrl-0 = <&pinctrl_uart14>;
 	status = "okay";
 };
+
+&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 f6f20a17e501..85d1c5db8bd9 100644
--- a/arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts
+++ b/arch/arm64/boot/dts/nuvoton/ma35d1-som-256m.dts
@@ -98,6 +98,16 @@ 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 {
@@ -129,3 +139,29 @@ &uart16 {
 	pinctrl-0 = <&pinctrl_uart16>;
 	status = "okay";
 };
+
+&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 e51b98f5bdce..73ff1d78d284 100644
--- a/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
+++ b/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
@@ -83,9 +83,18 @@ soc {
 		ranges;
 
 		sys: system-management@40460000 {
-			compatible = "nuvoton,ma35d1-reset", "syscon";
+			compatible = "nuvoton,ma35d1-reset", "syscon", "simple-mfd";
 			reg = <0x0 0x40460000 0x0 0x200>;
 			#reset-cells = <1>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			usb_phy: usb-phy@60 {
+				compatible = "nuvoton,ma35d1-usb2-phy";
+				reg = <0x60 0x14>;
+				#phy-cells = <1>;
+				status = "disabled";
+			};
 		};
 
 		clk: clock-controller@40460200 {
@@ -379,5 +388,62 @@ uart16: serial@40880000 {
 			clocks = <&clk UART16_GATE>;
 			status = "disabled";
 		};
+
+		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