xref: /freebsd/sys/contrib/device-tree/Bindings/mmc/wm,wm8505-sdhc.yaml (revision ae5de77ed78ae54d86cead5604869212e8008e6b)

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/wm,wm8505-sdhc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: WonderMedia SoC SDHCI Controller

maintainers:
  - Alexey Charkov <alchark@gmail.com>

allOf:
  - $ref: mmc-controller.yaml#

properties:
  compatible:
    oneOf:
      - const: wm,wm8505-sdhc
      - items:
          - const: wm,wm8650-sdhc
          - const: wm,wm8505-sdhc
      - items:
          - const: wm,wm8750-sdhc
          - const: wm,wm8505-sdhc
      - items:
          - const: wm,wm8850-sdhc
          - const: wm,wm8505-sdhc

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  interrupts:
    items:
      - description: SDMMC controller interrupt
      - description: SDMMC controller DMA interrupt

  sdon-inverted:
    type: boolean
    description: All chips before (not including) WM8505 rev. A2 treated their
      "clock stop" bit (register offset 0x08 a.k.a. SDMMC_BUSMODE, bit 0x10)
      as "set 1 to disable SD clock", while all the later versions treated it
      as "set 0 to disable SD clock". Set this property for later versions of
      wm,wm8505-sdhc. On wm,wm8650-sdhc and later this property is implied and
      does not need to be set explicitly

required:
  - compatible
  - reg
  - interrupts
  - clocks

unevaluatedProperties: false

examples:
  - |
    mmc@d800a000 {
        compatible = "wm,wm8505-sdhc";
        reg = <0xd800a000 0x1000>;
        interrupts = <20>, <21>;
        clocks = <&sdhc>;
        bus-width = <4>;
        sdon-inverted;
    };