xref: /openbmc/linux/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml (revision 217c7d18)

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

title: Renesas SDHI SD/MMC controller

maintainers:
  - Wolfram Sang <wsa+renesas@sang-engineering.com>

properties:
  compatible:
    oneOf:
      - items:
          - const: renesas,sdhi-sh73a0  # R-Mobile APE6
      - items:
          - const: renesas,sdhi-r7s72100 # RZ/A1H
      - items:
          - const: renesas,sdhi-r7s9210 # SH-Mobile AG5
      - items:
          - const: renesas,sdhi-r8a73a4 # R-Mobile APE6
      - items:
          - const: renesas,sdhi-r8a7740 # R-Mobile A1
      - items:
          - enum:
              - renesas,sdhi-r8a7778 # R-Car M1
              - renesas,sdhi-r8a7779 # R-Car H1
          - const: renesas,rcar-gen1-sdhi # R-Car Gen1
      - items:
          - enum:
              - renesas,sdhi-r8a7742  # RZ/G1H
              - renesas,sdhi-r8a7743  # RZ/G1M
              - renesas,sdhi-r8a7744  # RZ/G1N
              - renesas,sdhi-r8a7745  # RZ/G1E
              - renesas,sdhi-r8a77470 # RZ/G1C
              - renesas,sdhi-r8a7790  # R-Car H2
              - renesas,sdhi-r8a7791  # R-Car M2-W
              - renesas,sdhi-r8a7792  # R-Car V2H
              - renesas,sdhi-r8a7793  # R-Car M2-N
              - renesas,sdhi-r8a7794  # R-Car E2
          - const: renesas,rcar-gen2-sdhi # R-Car Gen2 and RZ/G1
      - items:
          - const: renesas,sdhi-mmc-r8a77470 # RZ/G1C (SDHI/MMC IP)
      - items:
          - enum:
              - renesas,sdhi-r8a774a1  # RZ/G2M
              - renesas,sdhi-r8a774b1  # RZ/G2N
              - renesas,sdhi-r8a774c0  # RZ/G2E
              - renesas,sdhi-r8a774e1  # RZ/G2H
              - renesas,sdhi-r8a7795   # R-Car H3
              - renesas,sdhi-r8a7796   # R-Car M3-W
              - renesas,sdhi-r8a77961  # R-Car M3-W+
              - renesas,sdhi-r8a77965  # R-Car M3-N
              - renesas,sdhi-r8a77970  # R-Car V3M
              - renesas,sdhi-r8a77980  # R-Car V3H
              - renesas,sdhi-r8a77990  # R-Car E3
              - renesas,sdhi-r8a77995  # R-Car D3
              - renesas,sdhi-r8a779a0  # R-Car V3U
              - renesas,sdhi-r9a07g044 # RZ/G2{L,LC}
          - const: renesas,rcar-gen3-sdhi # R-Car Gen3 or RZ/G2

  reg:
    maxItems: 1

  interrupts:
    minItems: 1
    maxItems: 3

  clocks: true

  clock-names: true

  dmas:
    minItems: 4
    maxItems: 4

  dma-names:
    minItems: 4
    maxItems: 4
    items:
      enum:
        - tx
        - rx

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  pinctrl-0:
    minItems: 1
    maxItems: 2

  pinctrl-1:
    maxItems: 1

  pinctrl-names: true

  max-frequency: true

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

  - if:
      properties:
        compatible:
          contains:
            const: renesas,sdhi-r9a07g044
    then:
      properties:
        clocks:
          items:
            - description: IMCLK, SDHI channel main clock1.
            - description: CLK_HS, SDHI channel High speed clock which operates
                           4 times that of SDHI channel main clock1.
            - description: IMCLK2, SDHI channel main clock2. When this clock is
                           turned off, external SD card detection cannot be
                           detected.
            - description: ACLK, SDHI channel bus clock.
        clock-names:
          items:
            - const: core
            - const: clkh
            - const: cd
            - const: aclk
      required:
        - clock-names
        - resets
    else:
      if:
        properties:
          compatible:
            contains:
              enum:
                - renesas,rcar-gen2-sdhi
                - renesas,rcar-gen3-sdhi
      then:
        properties:
          clocks:
            minItems: 1
            maxItems: 3
          clock-names:
            minItems: 1
            uniqueItems: true
            items:
              - const: core
              - enum: [ clkh, cd ]
              - const: cd
      else:
        properties:
          clocks:
            minItems: 1
            maxItems: 2
          clock-names:
            minItems: 1
            items:
              - const: core
              - const: cd

  - if:
      properties:
        compatible:
          contains:
            const: renesas,sdhi-mmc-r8a77470
    then:
      properties:
        pinctrl-names:
          items:
            - const: state_uhs
    else:
      properties:
        pinctrl-names:
          minItems: 1
          items:
            - const: default
            - const: state_uhs

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,sdhi-r7s72100
              - renesas,sdhi-r7s9210
    then:
      required:
        - clock-names
      description:
        The internal card detection logic that exists in these controllers is
        sectioned off to be run by a separate second clock source to allow
        the main core clock to be turned off to save power.

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - power-domains

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/r8a7790-sysc.h>

    sdhi0: mmc@ee100000 {
            compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
            reg = <0xee100000 0x328>;
            interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
            clocks = <&cpg CPG_MOD 314>;
            dmas = <&dmac0 0xcd>, <&dmac0 0xce>, <&dmac1 0xcd>, <&dmac1 0xce>;
            dma-names = "tx", "rx", "tx", "rx";
            max-frequency = <195000000>;
            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
            resets = <&cpg 314>;
    };

    sdhi1: mmc@ee120000 {
             compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
             reg = <0xee120000 0x328>;
             interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
             clocks = <&cpg CPG_MOD 313>;
             dmas = <&dmac0 0xc9>, <&dmac0 0xca>, <&dmac1 0xc9>, <&dmac1 0xca>;
             dma-names = "tx", "rx", "tx", "rx";
             max-frequency = <195000000>;
             power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
             resets = <&cpg 313>;
    };

    sdhi2: mmc@ee140000 {
             compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
             reg = <0xee140000 0x100>;
             interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
             clocks = <&cpg CPG_MOD 312>;
             dmas = <&dmac0 0xc1>, <&dmac0 0xc2>, <&dmac1 0xc1>, <&dmac1 0xc2>;
             dma-names = "tx", "rx", "tx", "rx";
             max-frequency = <97500000>;
             power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
             resets = <&cpg 312>;
     };

     sdhi3: mmc@ee160000 {
              compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
              reg = <0xee160000 0x100>;
              interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
              clocks = <&cpg CPG_MOD 311>;
              dmas = <&dmac0 0xd3>, <&dmac0 0xd4>, <&dmac1 0xd3>, <&dmac1 0xd4>;
              dma-names = "tx", "rx", "tx", "rx";
              max-frequency = <97500000>;
              power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
              resets = <&cpg 311>;
    };