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Diffstat (limited to 'Documentation/devicetree/bindings/usb/qcom,dwc3.txt')
-rw-r--r-- | Documentation/devicetree/bindings/usb/qcom,dwc3.txt | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.txt b/Documentation/devicetree/bindings/usb/qcom,dwc3.txt new file mode 100644 index 000000000000..ca164e71dd50 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.txt @@ -0,0 +1,66 @@ +Qualcomm SuperSpeed DWC3 USB SoC controller + +Required properties: +- compatible: should contain "qcom,dwc3" +- clocks: A list of phandle + clock-specifier pairs for the + clocks listed in clock-names +- clock-names: Should contain the following: + "core" Master/Core clock, have to be >= 125 MHz for SS + operation and >= 60MHz for HS operation + +Optional clocks: + "iface" System bus AXI clock. Not present on all platforms + "sleep" Sleep clock, used when USB3 core goes into low + power mode (U3). + +Required child node: +A child node must exist to represent the core DWC3 IP block. The name of +the node is not important. The content of the node is defined in dwc3.txt. + +Phy documentation is provided in the following places: +Documentation/devicetree/bindings/phy/qcom,dwc3-usb-phy.txt + +Example device nodes: + + hs_phy: phy@100f8800 { + compatible = "qcom,dwc3-hs-usb-phy"; + reg = <0x100f8800 0x30>; + clocks = <&gcc USB30_0_UTMI_CLK>; + clock-names = "ref"; + #phy-cells = <0>; + + status = "ok"; + }; + + ss_phy: phy@100f8830 { + compatible = "qcom,dwc3-ss-usb-phy"; + reg = <0x100f8830 0x30>; + clocks = <&gcc USB30_0_MASTER_CLK>; + clock-names = "ref"; + #phy-cells = <0>; + + status = "ok"; + }; + + usb3_0: usb30@0 { + compatible = "qcom,dwc3"; + #address-cells = <1>; + #size-cells = <1>; + clocks = <&gcc USB30_0_MASTER_CLK>; + clock-names = "core"; + + ranges; + + status = "ok"; + + dwc3@10000000 { + compatible = "snps,dwc3"; + reg = <0x10000000 0xcd00>; + interrupts = <0 205 0x4>; + phys = <&hs_phy>, <&ss_phy>; + phy-names = "usb2-phy", "usb3-phy"; + tx-fifo-resize; + dr_mode = "host"; + }; + }; + |