xref: /openbmc/linux/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml (revision c6ecb0f8)

# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/sdhci-pxa.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Marvell PXA SDHCI v1/v2/v3

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

allOf:
  - $ref: mmc-controller.yaml#
  - if:
      properties:
        compatible:
          contains:
            const: marvell,armada-380-sdhci
    then:
      properties:
        regs:
          minItems: 3
        reg-names:
          minItems: 3
      required:
        - reg-names
    else:
      properties:
        regs:
          maxItems: 1
        reg-names:
          maxItems: 1

properties:
  compatible:
    enum:
      - mrvl,pxav1-mmc
      - mrvl,pxav2-mmc
      - mrvl,pxav3-mmc
      - marvell,armada-380-sdhci

  reg:
    minItems: 1
    maxItems: 3

  reg-names:
    items:
      - const: sdhci
      - const: mbus
      - const: conf-sdio3

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 2

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

  pinctrl-names:
    description:
      Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin between
      SDIO CMD and GPIO mode.
    items:
      - const: default
      - const: state_cmd_gpio

  pinctrl-0:
    description:
      Should contain default pinctrl.

  pinctrl-1:
    description:
      Should switch CMD pin to GPIO mode as a high output.

  mrvl,clk-delay-cycles:
    description: Specify a number of cycles to delay for tuning.
    $ref: /schemas/types.yaml#/definitions/uint32

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

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/berlin2.h>
    mmc@d4280800 {
        compatible = "mrvl,pxav3-mmc";
        reg = <0xd4280800 0x800>;
        bus-width = <8>;
        interrupts = <27>;
        clocks = <&chip CLKID_SDIO1XIN>, <&chip CLKID_SDIO1>;
        clock-names = "io", "core";
        non-removable;
        mrvl,clk-delay-cycles = <31>;
    };
  - |
    mmc@d8000 {
        compatible = "marvell,armada-380-sdhci";
        reg-names = "sdhci", "mbus", "conf-sdio3";
        reg = <0xd8000 0x1000>,
              <0xdc000 0x100>,
              <0x18454 0x4>;
        interrupts = <0 25 0x4>;
        clocks = <&gateclk 17>;
        clock-names = "io";
        mrvl,clk-delay-cycles = <0x1F>;
    };

...