Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
Extension
.yaml
Size
2985 bytes
Lines
108
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/ata/cortina,gemini-sata-bridge.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Cortina Systems Gemini SATA Bridge

maintainers:
  - Linus Walleij <linusw@kernel.org>

description: |
    The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
    takes two Faraday Technology FTIDE010 PATA controllers and bridges
    them in different configurations to two SATA ports.

properties:
  compatible:
    const: cortina,gemini-sata-bridge

  reg:
    maxItems: 1

  resets:
    maxItems: 2
    description: phandles to the reset lines for both SATA bridges

  reset-names:
    items:
      - const: sata0
      - const: sata1

  clocks:
    maxItems: 2
    description: phandles to the compulsory peripheral clocks

  clock-names:
    items:
      - const: SATA0_PCLK
      - const: SATA1_PCLK

  syscon:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: a phandle to the global Gemini system controller

  cortina,gemini-ata-muxmode:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum:
      - 0
      - 1
      - 2
      - 3
    description: |
      Tell the desired multiplexing mode for the ATA controller and SATA
      bridges.
      Mode 0: ata0 master <-> sata0
              ata1 master <-> sata1
              ata0 slave interface brought out on IDE pads
      Mode 1: ata0 master <-> sata0
              ata1 master <-> sata1
              ata1 slave interface brought out on IDE pads
      Mode 2: ata1 master <-> sata1
              ata1 slave  <-> sata0
              ata0 master and slave interfaces brought out on IDE pads
      Mode 3: ata0 master <-> sata0
              ata0 slave  <-> sata1
              ata1 master and slave interfaces brought out on IDE pads

  cortina,gemini-enable-ide-pins:
    type: boolean

Annotation

Implementation Notes