Documentation/devicetree/bindings/mmc/sdhci-am654.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
Extension
.yaml
Size
6403 bytes
Lines
242
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)
# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/sdhci-am654.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TI AM654 MMC Controller

maintainers:
  - Ulf Hansson <ulf.hansson@linaro.org>

allOf:
  - $ref: sdhci-common.yaml#

properties:
  compatible:
    oneOf:
      - enum:
          - ti,am62-sdhci
          - ti,am64-sdhci-4bit
          - ti,am64-sdhci-8bit
          - ti,am654-sdhci-5.1
          - ti,j721e-sdhci-4bit
          - ti,j721e-sdhci-8bit
      - items:
          - const: ti,j7200-sdhci-8bit
          - const: ti,j721e-sdhci-8bit
      - items:
          - const: ti,j7200-sdhci-4bit
          - const: ti,j721e-sdhci-4bit

  reg:
    maxItems: 2

  interrupts:
    maxItems: 1

  power-domains:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 2
    description: Handles to input clocks

  clock-names:
    minItems: 1
    items:
      - const: clk_ahb
      - const: clk_xin

  dma-coherent: true

  # PHY output tap delays:
  # Used to delay the data valid window and align it to the sampling clock.
  # Binding needs to be provided for each supported speed mode otherwise the
  # corresponding mode will be disabled.

  ti,otap-del-sel-legacy:
    description: Output tap delay for SD/MMC legacy timing
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0
    maximum: 0xf

  ti,otap-del-sel-mmc-hs:
    description: Output tap delay for MMC high speed timing
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 0
    maximum: 0xf

Annotation

Implementation Notes