Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml
Extension
.yaml
Size
3189 bytes
Lines
125
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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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/spi/mediatek,spi-mtk-snfi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: SPI-NAND flash controller for MediaTek ARM SoCs

maintainers:
  - Chuanhong Guo <gch981213@gmail.com>

description: |
  The Mediatek SPI-NAND flash controller is an extended version of
  the Mediatek NAND flash controller. It can perform standard SPI
  instructions with one continuous write and one read for up-to 0xa0
  bytes. It also supports typical SPI-NAND page cache operations
  in single, dual or quad IO mode with pipelined ECC encoding/decoding
  using the accompanying ECC engine. There should be only one spi
  slave device following generic spi bindings.

properties:
  compatible:
    enum:
      - mediatek,mt7622-snand
      - mediatek,mt7629-snand
      - mediatek,mt7986-snand

  reg:
    items:
      - description: core registers

  interrupts:
    items:
      - description: NFI interrupt

  clocks:
    minItems: 2
    maxItems: 3

  clock-names:
    minItems: 2
    maxItems: 3

  nand-ecc-engine:
    description: device-tree node of the accompanying ECC engine.
    $ref: /schemas/types.yaml#/definitions/phandle

  mediatek,rx-latch-latency-ns:
    description: Data read latch latency, unit is nanoseconds.

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - nand-ecc-engine

allOf:
  - $ref: /schemas/spi/spi-controller.yaml#
  - if:
      properties:
        compatible:
          enum:
            - mediatek,mt7622-snand
            - mediatek,mt7629-snand
    then:
      properties:
        clocks:
          items:

Annotation

Implementation Notes