Ivan T. Ivanov | bbfc6cb | 2014-09-12 14:28:06 -0500 | [diff] [blame] | 1 | Qualcomm SuperSpeed DWC3 USB SoC controller |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: should contain "qcom,dwc3" |
| 5 | - clocks: A list of phandle + clock-specifier pairs for the |
| 6 | clocks listed in clock-names |
| 7 | - clock-names: Should contain the following: |
| 8 | "core" Master/Core clock, have to be >= 125 MHz for SS |
| 9 | operation and >= 60MHz for HS operation |
| 10 | |
| 11 | Optional clocks: |
| 12 | "iface" System bus AXI clock. Not present on all platforms |
| 13 | "sleep" Sleep clock, used when USB3 core goes into low |
| 14 | power mode (U3). |
| 15 | |
| 16 | Required child node: |
| 17 | A child node must exist to represent the core DWC3 IP block. The name of |
| 18 | the node is not important. The content of the node is defined in dwc3.txt. |
| 19 | |
| 20 | Phy documentation is provided in the following places: |
| 21 | Documentation/devicetree/bindings/phy/qcom,dwc3-usb-phy.txt |
| 22 | |
| 23 | Example device nodes: |
| 24 | |
| 25 | hs_phy: phy@100f8800 { |
| 26 | compatible = "qcom,dwc3-hs-usb-phy"; |
| 27 | reg = <0x100f8800 0x30>; |
| 28 | clocks = <&gcc USB30_0_UTMI_CLK>; |
| 29 | clock-names = "ref"; |
| 30 | #phy-cells = <0>; |
| 31 | |
| 32 | status = "ok"; |
| 33 | }; |
| 34 | |
| 35 | ss_phy: phy@100f8830 { |
| 36 | compatible = "qcom,dwc3-ss-usb-phy"; |
| 37 | reg = <0x100f8830 0x30>; |
| 38 | clocks = <&gcc USB30_0_MASTER_CLK>; |
| 39 | clock-names = "ref"; |
| 40 | #phy-cells = <0>; |
| 41 | |
| 42 | status = "ok"; |
| 43 | }; |
| 44 | |
| 45 | usb3_0: usb30@0 { |
| 46 | compatible = "qcom,dwc3"; |
| 47 | #address-cells = <1>; |
| 48 | #size-cells = <1>; |
| 49 | clocks = <&gcc USB30_0_MASTER_CLK>; |
| 50 | clock-names = "core"; |
| 51 | |
| 52 | ranges; |
| 53 | |
| 54 | status = "ok"; |
| 55 | |
| 56 | dwc3@10000000 { |
| 57 | compatible = "snps,dwc3"; |
| 58 | reg = <0x10000000 0xcd00>; |
| 59 | interrupts = <0 205 0x4>; |
| 60 | phys = <&hs_phy>, <&ss_phy>; |
| 61 | phy-names = "usb2-phy", "usb3-phy"; |
Ivan T. Ivanov | bbfc6cb | 2014-09-12 14:28:06 -0500 | [diff] [blame] | 62 | dr_mode = "host"; |
| 63 | }; |
| 64 | }; |
| 65 | |