xref: /linux/Documentation/devicetree/bindings/phy/renesas,rcar-gen2-usb-phy.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/phy/renesas,rcar-gen2-usb-phy.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas R-Car Gen2 USB PHY
8
9maintainers:
10  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
11
12properties:
13  compatible:
14    items:
15      - enum:
16          - renesas,usb-phy-r8a7742      # RZ/G1H
17          - renesas,usb-phy-r8a7743      # RZ/G1M
18          - renesas,usb-phy-r8a7744      # RZ/G1N
19          - renesas,usb-phy-r8a7745      # RZ/G1E
20          - renesas,usb-phy-r8a77470     # RZ/G1C
21          - renesas,usb-phy-r8a7790      # R-Car H2
22          - renesas,usb-phy-r8a7791      # R-Car M2-W
23          - renesas,usb-phy-r8a7794      # R-Car E2
24      - const: renesas,rcar-gen2-usb-phy # R-Car Gen2 or RZ/G1
25
26  reg:
27    maxItems: 1
28
29  '#address-cells':
30    const: 1
31
32  '#size-cells':
33    const: 0
34
35  clocks:
36    maxItems: 1
37
38  clock-names:
39    items:
40      - const: usbhs
41
42  power-domains:
43    maxItems: 1
44
45  resets:
46    maxItems: 1
47
48patternProperties:
49  "^usb-phy@[02]$":
50    type: object
51    description: Subnode corresponding to a USB channel.
52
53    properties:
54      reg:
55        description: FIXME RZ/G1C supports channel 0 only
56        enum: [0, 2]
57
58      '#phy-cells':
59        description: |
60          The phandle's argument in the PHY specifier is the USB controller
61          selector for the USB channel.
62          For RZ/G1C:
63            - 0 for EHCI/OHCI
64            - 1 for HS-USB
65          For all other SoCS:
66            - 0 for PCI EHCI/OHCI
67            - 1 for HS-USB (channel 0) or xHCI (channel 2)
68        const: 1
69
70    required:
71      - reg
72      - '#phy-cells'
73
74    additionalProperties: false
75
76required:
77  - compatible
78  - reg
79  - '#address-cells'
80  - '#size-cells'
81  - clocks
82  - clock-names
83  - resets
84  - power-domains
85  - usb-phy@0
86
87if:
88  properties:
89    compatible:
90      contains:
91        const: renesas,usb-phy-r8a77470
92then:
93  properties:
94    usb-phy@2: false
95else:
96  required:
97    - usb-phy@2
98
99additionalProperties: false
100
101examples:
102  - |
103    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
104    #include <dt-bindings/power/r8a7790-sysc.h>
105    usb-phy-controller@e6590100 {
106        compatible = "renesas,usb-phy-r8a7790", "renesas,rcar-gen2-usb-phy";
107        reg = <0xe6590100 0x100>;
108        #address-cells = <1>;
109        #size-cells = <0>;
110        clocks = <&cpg CPG_MOD 704>;
111        clock-names = "usbhs";
112        power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
113        resets = <&cpg 704>;
114
115        usb0: usb-phy@0 {
116            reg = <0>;
117            #phy-cells = <1>;
118        };
119        usb2: usb-phy@2 {
120            reg = <2>;
121            #phy-cells = <1>;
122        };
123    };
124