Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
Extension
.yaml
Size
6309 bytes
Lines
256
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/pci/fsl,imx6q-pcie-common.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX6 PCIe RC/EP controller

maintainers:
  - Lucas Stach <l.stach@pengutronix.de>
  - Richard Zhu <hongxing.zhu@nxp.com>

description:
  Generic Freescale i.MX PCIe Root Port and Endpoint controller
  properties.

properties:
  clocks:
    minItems: 3
    maxItems: 6

  clock-names:
    minItems: 3
    maxItems: 6

  num-lanes:
    const: 1

  fsl,imx7d-pcie-phy:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: A phandle to an fsl,imx7d-pcie-phy node. Additional
      required properties for imx7d-pcie, imx7d-pcie-ep, imx8mq-pcie,
      and imx8mq-pcie-ep.

  power-domains:
    minItems: 1
    items:
      - description: The phandle pointing to the DISPLAY domain for
          imx6sx-pcie, imx6sx-pcie-ep, to PCIE_PHY power domain for
          imx7d-pcie, imx7d-pcie-ep, imx8mq-pcie and imx8mq-pcie-ep.
      - description: The phandle pointing to the PCIE_PHY power domains
          for imx6sx-pcie and imx6sx-pcie-ep.

  power-domain-names:
    minItems: 1
    items:
      - const: pcie
      - const: pcie_phy

  resets:
    minItems: 2
    maxItems: 3
    description: Phandles to PCIe-related reset lines exposed by SRC
      IP block. Additional required by imx7d-pcie, imx7d-pcie-ep,
      imx8mq-pcie, and imx8mq-pcie-ep.

  reset-names:
    minItems: 2
    maxItems: 3

  fsl,tx-deemph-gen1:
    description: Gen1 De-emphasis value (optional required).
    $ref: /schemas/types.yaml#/definitions/uint32
    default: 0

  fsl,tx-deemph-gen2-3p5db:
    description: Gen2 (3.5db) De-emphasis value (optional required).
    $ref: /schemas/types.yaml#/definitions/uint32
    default: 0

Annotation

Implementation Notes