path: root/Documentation/devicetree/bindings/usb/generic-ohci.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/generic-ohci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: USB OHCI Controller Device Tree Bindings

allOf:
  - $ref: "usb-hcd.yaml"

maintainers:
  - Greg Kroah-Hartman <gregkh@linuxfoundation.org>

properties:
  compatible:
    contains:
      const: generic-ohci

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  resets:
    minItems: 1
    maxItems: 2

  clocks:
    minItems: 1
    maxItems: 3
    description: |
      In case the Renesas R-Car Gen3 SoCs:
        - if a host only channel: first clock should be host.
        - if a USB DRD channel: first clock should be host and second
          one should be peripheral

  big-endian:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      Set this flag for HCDs with big endian descriptors and big
      endian registers.

  big-endian-desc:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      Set this flag for HCDs with big endian descriptors.

  big-endian-regs:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      Set this flag for HCDs with big endian registers.

  remote-wakeup-connected:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      Remote wakeup is wired on the platform.

  no-big-frame-no:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      Set if frame_no lives in bits [15:0] of HCCA

  num-ports:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
      Overrides the detected port count

  phys:
    description: PHY specifier for the USB PHY

  phy-names:
    const: usb

required:
  - compatible
  - reg
  - interrupts

additionalProperties: false

examples:
  - |
      ohci0: usb@1c14400 {
          compatible = "allwinner,sun4i-a10-ohci", "generic-ohci";
          reg = <0x01c14400 0x100>;
          interrupts = <64>;
          clocks = <&usb_clk 6>, <&ahb_gates 2>;
          phys = <&usbphy 1>;
          phy-names = "usb";
      };

...