1ST USB EHCI controller
2
3Required properties:
4 - compatible		: must be "st,st-ehci-300x"
5 - reg			: physical base addresses of the controller and length of memory mapped
6			  region
7 - interrupts		: one EHCI interrupt should be described here
8 - pinctrl-names	: a pinctrl state named "default" must be defined
9 - pinctrl-0		: phandle referencing pin configuration of the USB controller
10See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
11 - clocks		: phandle list of usb clocks
12 - clock-names		: should be "ic" for interconnect clock and "clk48"
13See: Documentation/devicetree/bindings/clock/clock-bindings.txt
14
15 - phys			: phandle for the PHY device
16 - phy-names		: should be "usb"
17 - resets		: phandle + reset specifier pairs to the powerdown and softreset lines
18			  of the USB IP
19 - reset-names		: should be "power" and "softreset"
20See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
21See: Documentation/devicetree/bindings/reset/reset.txt
22
23Example:
24
25	ehci1: usb@fe203e00 {
26		compatible = "st,st-ehci-300x";
27		reg = <0xfe203e00 0x100>;
28		interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
29		pinctrl-names = "default";
30		pinctrl-0 = <&pinctrl_usb1>;
31		clocks = <&clk_s_a1_ls 0>;
32		phys = <&usb2_phy>;
33		phy-names = "usb";
34
35		resets = <&powerdown STIH416_USB1_POWERDOWN>,
36			 <&softreset STIH416_USB1_SOFTRESET>;
37		reset-names = "power", "softreset";
38	};
39