renesas,rcar-gen2-usb-phy.yaml

  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    };