xref: /linux/Documentation/devicetree/bindings/mmc/atmel,sama5d2-sdhci.yaml (revision 2bf717b07969b6d9e9ba5bccd3ac778e9aeaab18)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/atmel,sama5d2-sdhci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Atmel SDHCI controller

maintainers:
  - Aubin Constans <aubin.constans@microchip.com>
  - Nicolas Ferre <nicolas.ferre@microchip.com>

description:
  Bindings for the SDHCI controller found in Atmel/Microchip SoCs.

properties:
  compatible:
    oneOf:
      - enum:
          - atmel,sama5d2-sdhci
          - microchip,sam9x60-sdhci
      - items:
          - enum:
              - microchip,sam9x7-sdhci
              - microchip,sama7d65-sdhci
              - microchip,sama7g5-sdhci
          - const: microchip,sam9x60-sdhci

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: hclock
      - description: multclk
      - description: baseclk
    minItems: 2

  clock-names:
    items:
      - const: hclock
      - const: multclk
      - const: baseclk
    minItems: 2

  microchip,sdcal-inverted:
    type: boolean
    description:
      When present, polarity on the SDCAL SoC pin is inverted. The default
      polarity for this signal is described in the datasheet. For instance on
      SAMA5D2, the pin is usually tied to the GND with a resistor and a
      capacitor (see "SDMMC I/O Calibration" chapter).

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

allOf:
  - $ref: sdhci-common.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - atmel,sama5d2-sdhci
    then:
      properties:
        clocks:
          minItems: 3
        clock-names:
          minItems: 3

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/clock/at91.h>
    mmc@a0000000 {
        compatible = "atmel,sama5d2-sdhci";
        reg = <0xa0000000 0x300>;
        interrupts = <31 IRQ_TYPE_LEVEL_HIGH 0>;
        clocks = <&sdmmc0_hclk>, <&sdmmc0_gclk>, <&main>;
        clock-names = "hclock", "multclk", "baseclk";
        assigned-clocks = <&sdmmc0_gclk>;
        assigned-clock-rates = <480000000>;
    };