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Diffstat (limited to 'Documentation/devicetree/bindings/usb/amlogic,dwc3.txt')
-rw-r--r-- | Documentation/devicetree/bindings/usb/amlogic,dwc3.txt | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt b/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt index b9f04e617eb7..9a8b631904fd 100644 --- a/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt +++ b/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt @@ -40,91 +40,3 @@ Example device nodes: phy-names = "usb2-phy", "usb3-phy"; }; }; - -Amlogic Meson G12A DWC3 USB SoC Controller Glue - -The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3 -in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode -only. - -A glue connects the DWC3 core to USB2 PHYs and optionnaly to an USB3 PHY. - -One of the USB2 PHY can be re-routed in peripheral mode to a DWC2 USB IP. - -The DWC3 Glue controls the PHY routing and power, an interrupt line is -connected to the Glue to serve as OTG ID change detection. - -Required properties: -- compatible: Should be "amlogic,meson-g12a-usb-ctrl" -- clocks: a handle for the "USB" clock -- resets: a handle for the shared "USB" reset line -- reg: The base address and length of the registers -- interrupts: the interrupt specifier for the OTG detection -- phys: handle to used PHYs on the system - - a <0> phandle can be used if a PHY is not used -- phy-names: names of the used PHYs on the system : - - "usb2-phy0" for USB2 PHY0 if USBHOST_A port is used - - "usb2-phy1" for USB2 PHY1 if USBOTG_B port is used - - "usb3-phy0" for USB3 PHY if USB3_0 is used -- dr_mode: should be "host", "peripheral", or "otg" depending on - the usage and configuration of the OTG Capable port. - - "host" and "peripheral" means a fixed Host or Device only connection - - "otg" means the port can be used as both Host or Device and - be switched automatically using the OTG ID pin. - -Optional properties: -- vbus-supply: should be a phandle to the regulator controlling the VBUS - power supply when used in OTG switchable mode - -Required child nodes: - -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. - -A child node must exist to represent the core DWC2 IP block. The name of -the node is not important. The content of the node is defined in dwc2.txt. - -PHY documentation is provided in the following places: -- Documentation/devicetree/bindings/phy/meson-g12a-usb2-phy.txt -- Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt - -Example device nodes: - usb: usb@ffe09000 { - compatible = "amlogic,meson-g12a-usb-ctrl"; - reg = <0x0 0xffe09000 0x0 0xa0>; - interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; - #address-cells = <2>; - #size-cells = <2>; - ranges; - - clocks = <&clkc CLKID_USB>; - resets = <&reset RESET_USB>; - - dr_mode = "otg"; - - phys = <&usb2_phy0>, <&usb2_phy1>, - <&usb3_pcie_phy PHY_TYPE_USB3>; - phy-names = "usb2-phy0", "usb2-phy1", "usb3-phy0"; - - dwc2: usb@ff400000 { - compatible = "amlogic,meson-g12a-usb", "snps,dwc2"; - reg = <0x0 0xff400000 0x0 0x40000>; - interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&clkc CLKID_USB1_DDR_BRIDGE>; - clock-names = "ddr"; - phys = <&usb2_phy1>; - dr_mode = "peripheral"; - g-rx-fifo-size = <192>; - g-np-tx-fifo-size = <128>; - g-tx-fifo-size = <128 128 16 16 16>; - }; - - dwc3: usb@ff500000 { - compatible = "snps,dwc3"; - reg = <0x0 0xff500000 0x0 0x100000>; - interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>; - dr_mode = "host"; - snps,dis_u2_susphy_quirk; - snps,quirk-frame-length-adjustment; - }; - }; |