Documentation/devicetree/bindings/spi/cdns,xspi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/cdns,xspi.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/spi/cdns,xspi.yaml
Extension
.yaml
Size
2359 bytes
Lines
102
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 2020-21 Cadence
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/cdns,xspi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Cadence XSPI Controller

maintainers:
  - Parshuram Thombare <pthombar@cadence.com>

description: |
  The XSPI controller allows SPI protocol communication in
  single, dual, quad or octal wire transmission modes for
  read/write access to slaves such as SPI-NOR flash.

properties:
  compatible:
    enum:
      - cdns,xspi-nor
      - marvell,cn10-xspi-nor

  reg:
    items:
      - description: address and length of the controller register set
      - description: address and length of the Slave DMA data port
      - description: address and length of the auxiliary registers
      - description: address and length of the xfer registers
    minItems: 3

  reg-names:
    items:
      - const: io
      - const: sdma
      - const: aux
      - const: xfer
    minItems: 3

  interrupts:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts

allOf:
  - $ref: spi-controller.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - marvell,cn10-xspi-nor
    then:
      properties:
        reg:
          minItems: 4
        reg-names:
          minItems: 4
    else:
      properties:
        reg:
          maxItems: 3
        reg-names:
          maxItems: 3

unevaluatedProperties: false

Annotation

Implementation Notes