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1* Renesas R-Car generation 3 USB 2.0 PHY
2
3This file provides information on what the device node for the R-Car generation
43, RZ/G1C, RZ/G2 and RZ/A2 USB 2.0 PHY contain.
5
6Required properties:
7- compatible: "renesas,usb2-phy-r7s9210" if the device is a part of an R7S9210
8 SoC.
9 "renesas,usb2-phy-r8a77470" if the device is a part of an R8A77470
10 SoC.
11 "renesas,usb2-phy-r8a774a1" if the device is a part of an R8A774A1
12 SoC.
13 "renesas,usb2-phy-r8a774b1" if the device is a part of an R8A774B1
14 SoC.
15 "renesas,usb2-phy-r8a774c0" if the device is a part of an R8A774C0
16 SoC.
17 "renesas,usb2-phy-r8a7795" if the device is a part of an R8A7795
18 SoC.
19 "renesas,usb2-phy-r8a7796" if the device is a part of an R8A7796
20 SoC.
21 "renesas,usb2-phy-r8a77965" if the device is a part of an
22 R8A77965 SoC.
23 "renesas,usb2-phy-r8a77990" if the device is a part of an
24 R8A77990 SoC.
25 "renesas,usb2-phy-r8a77995" if the device is a part of an
26 R8A77995 SoC.
27 "renesas,rcar-gen3-usb2-phy" for a generic R-Car Gen3, RZ/G2 or
28 RZ/A2 compatible device.
29
30 When compatible with the generic version, nodes must list the
31 SoC-specific version corresponding to the platform first
32 followed by the generic version.
33
34- reg: offset and length of the partial USB 2.0 Host register block.
35- clocks: clock phandle and specifier pair(s).
36- #phy-cells: see phy-bindings.txt in the same directory, must be <1> (and
37 using <0> is deprecated).
38
39The phandle's argument in the PHY specifier is the INT_STATUS bit of controller:
40- 1 = USBH_INTA (OHCI)
41- 2 = USBH_INTB (EHCI)
42- 3 = UCOM_INT (OTG and BC)
43
44Optional properties:
45To use a USB channel where USB 2.0 Host and HSUSB (USB 2.0 Peripheral) are
46combined, the device tree node should set interrupt properties to use the
47channel as USB OTG:
48- interrupts: interrupt specifier for the PHY.
49- vbus-supply: Phandle to a regulator that provides power to the VBUS. This
50 regulator will be managed during the PHY power on/off sequence.
51- renesas,no-otg-pins: boolean, specify when a board does not provide proper
52 otg pins.
53- dr_mode: string, indicates the working mode for the PHY. Can be "host",
54 "peripheral", or "otg". Should be set if otg controller is not used.
55
56
57Example (R-Car H3):
58
59 usb-phy@ee080200 {
60 compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
61 reg = <0 0xee080200 0 0x700>;
62 interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
63 clocks = <&cpg CPG_MOD 703>;
64 };
65
66 usb-phy@ee0a0200 {
67 compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
68 reg = <0 0xee0a0200 0 0x700>;
69 clocks = <&cpg CPG_MOD 702>;
70 };