Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
Extension
.yaml
Size
4903 bytes
Lines
207
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)
# Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/ti,j721e-pci-host.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TI J721E PCI Host (PCIe Wrapper)

maintainers:
  - Kishon Vijay Abraham I <kishon@ti.com>

properties:
  compatible:
    oneOf:
      - const: ti,j721e-pcie-host
      - const: ti,j784s4-pcie-host
      - description: PCIe controller in AM64
        items:
          - const: ti,am64-pcie-host
          - const: ti,j721e-pcie-host
      - description: PCIe controller in J7200
        items:
          - const: ti,j7200-pcie-host
          - const: ti,j721e-pcie-host
      - description: PCIe controller in J722S
        items:
          - const: ti,j722s-pcie-host
          - const: ti,j721e-pcie-host

  reg:
    maxItems: 4

  reg-names:
    items:
      - const: intd_cfg
      - const: user_cfg
      - const: reg
      - const: cfg

  ti,syscon-acspcie-proxy-ctrl:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - items:
          - description: Phandle to the ACSPCIE Proxy Control Register
          - description: Bitmask corresponding to the PAD IO Buffer
                         output enable fields (Active Low).
    description: Specifier for enabling the ACSPCIE PAD outputs to drive
                 the reference clock to the Endpoint device.

  ti,syscon-pcie-ctrl:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - items:
          - description: Phandle to the SYSCON entry
          - description: pcie_ctrl register offset within SYSCON
    description: Specifier for configuring PCIe mode and link speed.

  power-domains:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 2
    description: |+
      clock-specifier to represent input to the PCIe for 1 item.
      2nd item if present represents reference clock to the connector.

  clock-names:
    minItems: 1

Annotation

Implementation Notes