Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml
Extension
.yaml
Size
1406 bytes
Lines
67
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-later)
%YAML 1.2
---
$id: http://devicetree.org/schemas/fsi/ibm,fsi2spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: IBM FSI-attached SPI controllers

maintainers:
  - Eddie James <eajames@linux.ibm.com>

description:
  This binding describes an FSI CFAM engine called the FSI2SPI. Therefore this
  node will always be a child of an FSI CFAM node. This FSI2SPI engine provides
  access to a number of SPI controllers.

properties:
  compatible:
    enum:
      - ibm,fsi2spi

  reg:
    items:
      - description: FSI slave address

  "#address-cells":
    const: 1

  "#size-cells":
    const: 0

patternProperties:
  "^spi@[0-9a-f]+$":
    type: object
    $ref: /schemas/spi/ibm,spi-fsi.yaml

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    fsi2spi@1c00 {
        compatible = "ibm,fsi2spi";
        reg = <0x1c00 0x400>;
        #address-cells = <1>;
        #size-cells = <0>;

        spi@0 {
            compatible = "ibm,spi-fsi";
            reg = <0>;
            #address-cells = <1>;
            #size-cells = <0>;

            eeprom@0 {
                compatible = "atmel,at25";
                reg = <0>;
                address-width = <24>;
                pagesize = <256>;
                size = <0x80000>;
                spi-max-frequency = <1000000>;
            };
        };
    };

Annotation

Implementation Notes