Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml
Extension
.yaml
Size
1573 bytes
Lines
71
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/mmc/amlogic,meson-mx-sdhc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Amlogic Meson SDHC controller

allOf:
  - $ref: mmc-controller.yaml

maintainers:
  - Martin Blumenstingl <martin.blumenstingl@googlemail.com>

description: |
  The SDHC MMC host controller on Amlogic SoCs provides an eMMC and MMC
  card interface with 1/4/8-bit bus width.
  It supports eMMC spec 4.4x/4.5x including HS200 (up to 100MHz clock).

properties:
  compatible:
    items:
      - enum:
          - amlogic,meson8-sdhc
          - amlogic,meson8b-sdhc
          - amlogic,meson8m2-sdhc
      - const: amlogic,meson-mx-sdhc

  reg:
    minItems: 1

  interrupts:
    minItems: 1

  clocks:
    minItems: 5

  clock-names:
    items:
      - const: clkin0
      - const: clkin1
      - const: clkin2
      - const: clkin3
      - const: pclk

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

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    sdhc: mmc@8e00 {
      compatible = "amlogic,meson8-sdhc", "amlogic,meson-mx-sdhc";
      reg = <0x8e00 0x42>;
      interrupts = <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>;
      clocks = <&xtal>,
               <&fclk_div4>,
               <&fclk_div3>,
               <&fclk_div5>,
               <&sdhc_pclk>;
      clock-names = "clkin0", "clkin1", "clkin2", "clkin3", "pclk";
    };

Annotation

Implementation Notes