Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml

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

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
Extension
.yaml
Size
3479 bytes
Lines
153
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/spi/microchip,mpfs-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Microchip FPGA {Q,}SPI Controllers

description:
  SPI and QSPI controllers on Microchip PolarFire SoC and the "soft"/
  fabric IP cores they are based on

maintainers:
  - Conor Dooley <conor.dooley@microchip.com>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - microchip,mpfs-qspi
              - microchip,pic64gx-qspi
          - const: microchip,coreqspi-rtl-v2
      - enum:
          - microchip,coreqspi-rtl-v2 # FPGA QSPI
          - microchip,corespi-rtl-v5 # FPGA CoreSPI
          - microchip,mpfs-spi
      - items:
          - const: microchip,pic64gx-spi
          - const: microchip,mpfs-spi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  microchip,apb-datawidth:
    description: APB bus data width in bits.
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [8, 16, 32]
    default: 8

  microchip,frame-size:
    description: |
      Number of bits per SPI frame, as configured in Libero.
      In Motorola and TI modes, this corresponds directly
      to the requested frame size. For NSC mode this is set
      to 9 + the required data frame size.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 4
    maximum: 32
    default: 8

  microchip,protocol-configuration:
    description: CoreSPI protocol selection. Determines operating mode
    $ref: /schemas/types.yaml#/definitions/string
    enum:
      - motorola
      - ti
      - nsc
    default: motorola

  microchip,motorola-mode:

Annotation

Implementation Notes