1 ST USB EHCI controller 1 ST USB EHCI controller
2 2
3 Required properties: 3 Required properties:
4 - compatible : must be "st,st-ehci- 4 - compatible : must be "st,st-ehci-300x"
5 - reg : physical base addres 5 - reg : physical base addresses of the controller and length of memory mapped
6 region 6 region
7 - interrupts : one EHCI interrupt s 7 - interrupts : one EHCI interrupt should be described here
8 - pinctrl-names : a pinctrl state name 8 - pinctrl-names : a pinctrl state named "default" must be defined
9 - pinctrl-0 : phandle referencing 9 - pinctrl-0 : phandle referencing pin configuration of the USB controller
10 See: Documentation/devicetree/bindings/pinctrl 10 See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
11 - clocks : phandle list of usb 11 - clocks : phandle list of usb clocks
12 - clock-names : should be "ic" for i 12 - clock-names : should be "ic" for interconnect clock and "clk48"
13 See: Documentation/devicetree/bindings/clock/c 13 See: Documentation/devicetree/bindings/clock/clock-bindings.txt
14 14
15 - phys : phandle for the PHY 15 - phys : phandle for the PHY device
16 - phy-names : should be "usb" 16 - phy-names : should be "usb"
17 - resets : phandle + reset spec 17 - resets : phandle + reset specifier pairs to the powerdown and softreset lines
18 of the USB IP 18 of the USB IP
19 - reset-names : should be "power" an 19 - reset-names : should be "power" and "softreset"
20 See: Documentation/devicetree/bindings/reset/s 20 See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml
21 See: Documentation/devicetree/bindings/reset/r 21 See: Documentation/devicetree/bindings/reset/reset.txt
22 22
23 Example: 23 Example:
24 24
25 ehci1: usb@fe203e00 { 25 ehci1: usb@fe203e00 {
26 compatible = "st,st-ehci-300x" 26 compatible = "st,st-ehci-300x";
27 reg = <0xfe203e00 0x100>; 27 reg = <0xfe203e00 0x100>;
28 interrupts = <GIC_SPI 148 IRQ_ 28 interrupts = <GIC_SPI 148 IRQ_TYPE_NONE>;
29 pinctrl-names = "default"; 29 pinctrl-names = "default";
30 pinctrl-0 = <&pinctrl_usb1>; 30 pinctrl-0 = <&pinctrl_usb1>;
31 clocks = <&clk_s_a1_ls 0>; 31 clocks = <&clk_s_a1_ls 0>;
32 phys = <&usb2_phy>; 32 phys = <&usb2_phy>;
33 phy-names = "usb"; 33 phy-names = "usb";
34 34
35 resets = <&powerdown STIH416_U 35 resets = <&powerdown STIH416_USB1_POWERDOWN>,
36 <&softreset STIH416_U 36 <&softreset STIH416_USB1_SOFTRESET>;
37 reset-names = "power", "softre 37 reset-names = "power", "softreset";
38 }; 38 };
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