From 554405d4591f2ee6249571f720ff7e12ac35ff5b Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 8 Sep 2014 13:04:47 +0100 Subject: [PATCH] usb: host: ohci-st: Add ohci-st devicetree bindings documentation This patch documents the device tree bindings required for the ohci on-chip controller found in ST consumer electronics SoC's. Signed-off-by: Peter Griffin Reviewed-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/usb/ohci-st.txt | 37 +++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ohci-st.txt diff --git a/Documentation/devicetree/bindings/usb/ohci-st.txt b/Documentation/devicetree/bindings/usb/ohci-st.txt new file mode 100644 index 000000000000..6d8393748da2 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ohci-st.txt @@ -0,0 +1,37 @@ +ST USB OHCI controller + +Required properties: + + - compatible : must be "st,st-ohci-300x" + - reg : physical base addresses of the controller and length of memory mapped + region + - interrupts : one OHCI controller interrupt should be described here + - clocks : phandle list of usb clocks + - clock-names : should be "ic" for interconnect clock and "clk48" +See: Documentation/devicetree/bindings/clock/clock-bindings.txt + + - phys : phandle for the PHY device + - phy-names : should be "usb" + + - resets : phandle to the powerdown and reset controller for the USB IP + - reset-names : should be "power" and "softreset". +See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt +See: Documentation/devicetree/bindings/reset/reset.txt + +Example: + + ohci0: usb@0xfe1ffc00 { + compatible = "st,st-ohci-300x"; + reg = <0xfe1ffc00 0x100>; + interrupts = ; + clocks = <&clk_s_a1_ls 0>, + <&clockgen_b0 0>; + clock-names = "ic", "clk48"; + phys = <&usb2_phy>; + phy-names = "usb"; + status = "okay"; + + resets = <&powerdown STIH416_USB0_POWERDOWN>, + <&softreset STIH416_USB0_SOFTRESET>; + reset-names = "power", "softreset"; + }; -- 2.20.1