Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/pci/qcom,pcie-sc8280xp.yaml
Extension
.yaml
Size
5507 bytes
Lines
181
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.

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/qcom,pcie-sc8280xp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm SC8280XP PCI Express Root Complex

maintainers:
  - Bjorn Andersson <andersson@kernel.org>
  - Manivannan Sadhasivam <mani@kernel.org>

description:
  Qualcomm SC8280XP SoC PCIe root complex controller is based on the Synopsys
  DesignWare PCIe IP.

properties:
  compatible:
    enum:
      - qcom,pcie-sa8540p
      - qcom,pcie-sc8280xp

  reg:
    minItems: 5
    maxItems: 6

  reg-names:
    minItems: 5
    items:
      - const: parf # Qualcomm specific registers
      - const: dbi # DesignWare PCIe registers
      - const: elbi # External local bus interface registers
      - const: atu # ATU address space
      - const: config # PCIe configuration space
      - const: mhi # MHI registers

  clocks:
    minItems: 8
    maxItems: 9

  clock-names:
    minItems: 8
    items:
      - const: aux # Auxiliary clock
      - const: cfg # Configuration clock
      - const: bus_master # Master AXI clock
      - const: bus_slave # Slave AXI clock
      - const: slave_q2a # Slave Q2A clock
      - const: ddrss_sf_tbu # PCIe SF TBU clock
      - const: noc_aggr_4 # NoC aggregate 4 clock
      - const: noc_aggr_south_sf # NoC aggregate South SF clock
      - const: cnoc_qx # Configuration NoC QX clock

  resets:
    maxItems: 1

  reset-names:
    items:
      - const: pci

required:
  - interconnects
  - interconnect-names
  - power-domains
  - resets
  - reset-names

allOf:
  - $ref: qcom,pcie-common.yaml#
  - if:

Annotation

Implementation Notes