Documentation/devicetree/bindings/net/thead,th1520-gmac.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/net/thead,th1520-gmac.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/net/thead,th1520-gmac.yaml
Extension
.yaml
Size
2930 bytes
Lines
113
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.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/thead,th1520-gmac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: T-HEAD TH1520 GMAC Ethernet controller

maintainers:
  - Drew Fustini <dfustini@tenstorrent.com>

description: |
  The TH1520 GMAC is described in the TH1520 Peripheral Interface User Manual
  https://git.beagleboard.org/beaglev-ahead/beaglev-ahead/-/tree/main/docs

  Features include
    - Compliant with IEEE802.3 Specification
    - IEEE 1588-2008 standard for precision networked clock synchronization
    - Supports 10/100/1000Mbps data transfer rate
    - Supports RGMII/MII interface
    - Preamble and start of frame data (SFD) insertion in Transmit path
    - Preamble and SFD deletion in the Receive path
    - Automatic CRC and pad generation options for receive frames
    - MDIO master interface for PHY device configuration and management

  The GMAC Registers consists of two parts
    - APB registers are used to configure clock frequency/clock enable/clock
      direction/PHY interface type.
    - AHB registers are use to configure GMAC core (DesignWare Core part).
      GMAC core register consists of DMA registers and GMAC registers.

select:
  properties:
    compatible:
      contains:
        enum:
          - thead,th1520-gmac
  required:
    - compatible

allOf:
  - $ref: snps,dwmac.yaml#

properties:
  compatible:
    items:
      - enum:
          - thead,th1520-gmac
      - const: snps,dwmac-3.70a

  reg:
    items:
      - description: DesignWare GMAC IP core registers
      - description: GMAC APB registers

  reg-names:
    items:
      - const: dwmac
      - const: apb

  clocks:
    items:
      - description: GMAC main clock
      - description: Peripheral registers interface clock
      - description: APB glue registers interface clock

  clock-names:
    items:
      - const: stmmaceth
      - const: pclk

Annotation

Implementation Notes