Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.yaml

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

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Linux kernel
Corpus path
Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.yaml
Extension
.yaml
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7178 bytes
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261
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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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/marvell,xenon-sdhci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Marvell Xenon SDHCI Controller

description: |
  This file documents differences between the core MMC properties described by
  mmc-controller.yaml and the properties used by the Xenon implementation.

  Multiple SDHCs might be put into a single Xenon IP, to save size and cost.
  Each SDHC is independent and owns independent resources, such as register
  sets, clock and PHY.

  Each SDHC should have an independent device tree node.

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

properties:
  compatible:
    oneOf:
      - enum:
          - marvell,armada-cp110-sdhci
          - marvell,armada-ap806-sdhci

      - items:
          - enum:
              - marvell,armada-ap807-sdhci
              - marvell,ac5-sdhci
          - const: marvell,armada-ap806-sdhci

      - items:
          - const: marvell,armada-3700-sdhci
          - const: marvell,sdhci-xenon

  reg:
    minItems: 1
    items:
      - description: Xenon IP registers
      - description: Armada 3700 SoC PHY PAD Voltage Control register

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    items:
      - const: core
      - const: axi

  dma-coherent: true

  interrupts:
    maxItems: 1

  iommus:
    maxItems: 1

  marvell,pad-type:
    $ref: /schemas/types.yaml#/definitions/string
    enum:
      - sd
      - fixed-1-8v
    description:
      Type of Armada 3700 SoC PHY PAD Voltage Controller register. If "sd" is
      selected, SoC PHY PAD is set as 3.3V at the beginning and is switched to

Annotation

Implementation Notes