Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
Extension
.yaml
Size
3120 bytes
Lines
124
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 OR BSD-2-Clause)
# Copyright (C) 2015, 2019, 2024, Intel Corporation
%YAML 1.2
---
$id: http://devicetree.org/schemas/altr,pcie-root-port.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Altera PCIe Root Port

maintainers:
  - Matthew Gerlach <matthew.gerlach@linux.intel.com>

properties:
  compatible:
    description: Each family of socfpga has its own implementation of the
      PCI controller. The altr,pcie-root-port-1.0 is used for the Cyclone5
      family of chips. The Stratix10 family of chips is supported by the
      altr,pcie-root-port-2.0. The Agilex family of chips has three,
      non-register compatible, variants of PCIe Hard IP referred to as the
      F-Tile, P-Tile, and R-Tile, depending on the specific chip instance.

    enum:
      - altr,pcie-root-port-1.0
      - altr,pcie-root-port-2.0
      - altr,pcie-root-port-3.0-f-tile
      - altr,pcie-root-port-3.0-p-tile
      - altr,pcie-root-port-3.0-r-tile

  reg:
    items:
      - description: TX slave port region
      - description: Control register access region
      - description: Hard IP region
    minItems: 2

  reg-names:
    items:
      - const: Txs
      - const: Cra
      - const: Hip
    minItems: 2

  interrupts:
    maxItems: 1

  interrupt-controller: true

  interrupt-map-mask:
    items:
      - const: 0
      - const: 0
      - const: 0
      - const: 7

  interrupt-map:
    maxItems: 4

  "#interrupt-cells":
    const: 1

  msi-parent: true

required:
  - compatible
  - reg
  - reg-names
  - interrupts
  - "#interrupt-cells"
  - interrupt-controller
  - interrupt-map

Annotation

Implementation Notes