Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/nvmem/fsl,layerscape-sfp.yaml
Extension
.yaml
Size
1436 bytes
Lines
64
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/nvmem/fsl,layerscape-sfp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale Layerscape Security Fuse Processor

maintainers:
  - Michael Walle <michael@walle.cc>

description: |
  SFP is the security fuse processor which among other things provides a
  unique identifier per part.

allOf:
  - $ref: nvmem.yaml#
  - $ref: nvmem-deprecated-cells.yaml

properties:
  compatible:
    oneOf:
      - description: Trust architecture 2.1 SFP
        items:
          - const: fsl,ls1021a-sfp
      - description: Trust architecture 3.0 SFP
        items:
          - const: fsl,ls1028a-sfp

  reg:
    maxItems: 1

  clocks:
    maxItems: 1
    description:
      The SFP clock. Typically, this is the platform clock divided by 4.

  clock-names:
    const: sfp

  ta-prog-sfp-supply:
    description:
      The regulator for the TA_PROG_SFP pin. It will be enabled for programming
      and disabled for reading.

required:
  - compatible
  - reg
  - clock-names
  - clocks

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
    efuse@1e80000 {
        compatible = "fsl,ls1028a-sfp";
        reg = <0x1e80000 0x8000>;
        clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
                            QORIQ_CLK_PLL_DIV(4)>;
        clock-names = "sfp";
    };

Annotation

Implementation Notes