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[karo-tx-linux.git] / Documentation / devicetree / bindings / usb / ehci-st.txt
1 ST USB EHCI controller
2
3 Required 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
10 See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
11  - clocks               : phandle list of usb clocks
12  - clock-names          : should be "ic" for interconnect clock and "clk48"
13 See: 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"
20 See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
21 See: Documentation/devicetree/bindings/reset/reset.txt
22
23 Example:
24
25         ehci1: usb@0xfe203e00 {
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                 status = "okay";
35
36                 resets = <&powerdown STIH416_USB1_POWERDOWN>,
37                          <&softreset STIH416_USB1_SOFTRESET>;
38                 reset-names = "power", "softreset";
39         };