Documentation/devicetree/bindings/usb/spacemit,k1-dwc3.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/usb/spacemit,k1-dwc3.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/usb/spacemit,k1-dwc3.yaml
Extension
.yaml
Size
2803 bytes
Lines
126
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/spacemit,k1-dwc3.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: SpacemiT K1 SuperSpeed DWC3 USB SoC Controller

maintainers:
  - Ze Huang <huang.ze@linux.dev>

description: |
  The SpacemiT K1 embeds a DWC3 USB IP Core which supports Host functions
  for USB 3.0 and DRD for USB 2.0.

  Key features:
  - USB3.0 SuperSpeed and USB2.0 High/Full/Low-Speed support
  - Supports low-power modes (USB2.0 suspend, USB3.0 U1/U2/U3)
  - Internal DMA controller and flexible endpoint FIFO sizing

  Communication Interface:
  - Use of PIPE3 (125MHz) interface for USB3.0 PHY
  - Use of UTMI+ (30/60MHz) interface for USB2.0 PHY

allOf:
  - $ref: snps,dwc3-common.yaml#

properties:
  compatible:
    enum:
      - spacemit,k1-dwc3
      - spacemit,k3-dwc3

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    const: usbdrd30

  interrupts:
    maxItems: 1

  phys:
    minItems: 1
    items:
      - description: phandle to USB2/HS PHY
      - description: phandle to USB3/SS PHY

  phy-names:
    minItems: 1
    items:
      - const: usb2-phy
      - const: usb3-phy

  resets:
    items:
      - description: USB3.0 AHB reset
      - description: USB3.0 VCC reset
      - description: USB3.0 PHY reset

  reset-names:
    items:
      - const: ahb
      - const: vcc
      - const: phy

  reset-delay:

Annotation

Implementation Notes