xref: /openbmc/linux/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml (revision a4553772)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2
---
$id: "http://devicetree.org/schemas/mmc/sdhci-msm.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: Qualcomm SDHCI controller (sdhci-msm)

maintainers:
  - Bhupesh Sharma <bhupesh.sharma@linaro.org>

description:
  Secure Digital Host Controller Interface (SDHCI) present on
  Qualcomm SOCs supports SD/MMC/SDIO devices.

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - qcom,apq8084-sdhci
              - qcom,msm8226-sdhci
              - qcom,msm8953-sdhci
              - qcom,msm8974-sdhci
              - qcom,msm8916-sdhci
              - qcom,msm8992-sdhci
              - qcom,msm8994-sdhci
              - qcom,msm8996-sdhci
              - qcom,qcs404-sdhci
              - qcom,sc7180-sdhci
              - qcom,sc7280-sdhci
              - qcom,sdm630-sdhci
              - qcom,sdm845-sdhci
              - qcom,sdx55-sdhci
              - qcom,sm6125-sdhci
              - qcom,sm6350-sdhci
              - qcom,sm8250-sdhci
          - enum:
              - qcom,sdhci-msm-v4 # for sdcc versions less than 5.0
              - qcom,sdhci-msm-v5 # for sdcc version 5.0
      - items:
          - const: qcom,sdhci-msm-v4 # Deprecated (only for backward compatibility)
                                     # for sdcc versions less than 5.0

  reg:
    minItems: 1
    items:
      - description: Host controller register map
      - description: SD Core register map
      - description: CQE register map
      - description: Inline Crypto Engine register map

  clocks:
    minItems: 3
    items:
      - description: Main peripheral bus clock, PCLK/HCLK - AHB Bus clock
      - description: SDC MMC clock, MCLK
      - description: TCXO clock
      - description: clock for Inline Crypto Engine
      - description: SDCC bus voter clock
      - description: reference clock for RCLK delay calibration
      - description: sleep clock for RCLK delay calibration

  clock-names:
    minItems: 2
    items:
      - const: iface
      - const: core
      - const: xo
      - const: ice
      - const: bus
      - const: cal
      - const: sleep

  interrupts:
    maxItems: 2

  interrupt-names:
    items:
      - const: hc_irq
      - const: pwr_irq

  pinctrl-names:
    minItems: 1
    items:
      - const: default
      - const: sleep

  pinctrl-0:
    description:
      Should specify pin control groups used for this controller.

  qcom,ddr-config:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: platform specific settings for DDR_CONFIG reg.

  qcom,dll-config:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: platform specific settings for DLL_CONFIG reg.

  iommus:
    minItems: 1
    maxItems: 8
    description: |
      phandle to apps_smmu node with sid mask.

  interconnects:
    items:
      - description: data path, sdhc to ddr
      - description: config path, cpu to sdhc

  interconnect-names:
    items:
      - const: sdhc-ddr
      - const: cpu-sdhc

  power-domains:
    description: A phandle to sdhci power domain node
    maxItems: 1

patternProperties:
  '^opp-table(-[a-z0-9]+)?$':
    if:
      properties:
        compatible:
          const: operating-points-v2
    then:
      patternProperties:
        '^opp-?[0-9]+$':
          required:
            - required-opps

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

additionalProperties: true

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/qcom,gcc-sm8250.h>
    #include <dt-bindings/clock/qcom,rpmh.h>
    #include <dt-bindings/power/qcom-rpmpd.h>

    sdhc_2: sdhci@8804000 {
      compatible = "qcom,sm8250-sdhci", "qcom,sdhci-msm-v5";
      reg = <0 0x08804000 0 0x1000>;

      interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>,
                   <GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>;
      interrupt-names = "hc_irq", "pwr_irq";

      clocks = <&gcc GCC_SDCC2_AHB_CLK>,
               <&gcc GCC_SDCC2_APPS_CLK>,
               <&rpmhcc RPMH_CXO_CLK>;
      clock-names = "iface", "core", "xo";
      iommus = <&apps_smmu 0x4a0 0x0>;
      qcom,dll-config = <0x0007642c>;
      qcom,ddr-config = <0x80040868>;
      power-domains = <&rpmhpd SM8250_CX>;

      operating-points-v2 = <&sdhc2_opp_table>;

      sdhc2_opp_table: opp-table {
        compatible = "operating-points-v2";

        opp-19200000 {
          opp-hz = /bits/ 64 <19200000>;
          required-opps = <&rpmhpd_opp_min_svs>;
        };

        opp-50000000 {
          opp-hz = /bits/ 64 <50000000>;
          required-opps = <&rpmhpd_opp_low_svs>;
        };

        opp-100000000 {
          opp-hz = /bits/ 64 <100000000>;
          required-opps = <&rpmhpd_opp_svs>;
        };

        opp-202000000 {
          opp-hz = /bits/ 64 <202000000>;
          required-opps = <&rpmhpd_opp_svs_l1>;
        };
      };
    };