1 * Renesas R-Car generation 2 USB PHY
3 This file provides information on what the device node for the R-Car generation
7 - compatible: "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC.
8 "renesas,usb-phy-r8a7791" if the device is a part of R8A7791 SoC.
9 "renesas,usb-phy-r8a7794" if the device is a part of R8A7794 SoC.
10 "renesas,rcar-gen2-usb-phy" for a generic R-Car Gen2 compatible device.
12 When compatible with the generic version, nodes must list the
13 SoC-specific version corresponding to the platform first
14 followed by the generic version.
16 - reg: offset and length of the register block.
17 - #address-cells: number of address cells for the USB channel subnodes, must
19 - #size-cells: number of size cells for the USB channel subnodes, must be <0>.
20 - clocks: clock phandle and specifier pair.
21 - clock-names: string, clock input name, must be "usbhs".
23 The USB PHY device tree node should have the subnodes corresponding to the USB
24 channels. These subnodes must contain the following properties:
25 - reg: the USB controller selector; see the table below for the values.
26 - #phy-cells: see phy-bindings.txt in the same directory, must be <1>.
28 The phandle's argument in the PHY specifier is the USB controller selector for
29 the USB channel; see the selector meanings below:
31 +-----------+---------------+---------------+
35 +-----------+---------------+---------------+
36 | 0 | PCI EHCI/OHCI | HS-USB |
37 | 2 | PCI EHCI/OHCI | xHCI |
38 +-----------+---------------+---------------+
40 Example (Lager board):
43 compatible = "renesas,usb-phy-r8a7790", "renesas,rcar-gen2-usb-phy";
44 reg = <0 0xe6590100 0 0x100>;
47 clocks = <&mstp7_clks R8A7790_CLK_HSUSB>;
48 clock-names = "usbhs";