| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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-bindings.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,stih407-powerdown.yaml |
| 21 | See: Documentation/devicetree/bindings/reset/reset.txt |
| 22 | |
| 23 | Example: |
| 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 | }; |