ARK-OS/arkos/kernel/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml

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

title: Qualcomm Universal Flash Storage (UFS) Controller

maintainers:
  - Bjorn Andersson <bjorn.andersson@linaro.org>
  - Andy Gross <agross@kernel.org>

# Select only our matches, not all jedec,ufs-2.0
select:
  properties:
    compatible:
      contains:
        enum:
          - qcom,msm8994-ufshc
          - qcom,msm8996-ufshc
          - qcom,qcs615-ufshc
          - qcom,sdm845-ufshc
          - qcom,sm6115-ufshc
          - qcom,sm6125-ufshc
          - qcom,sm6350-ufshc
          - qcom,sm8150-ufshc
  required:
    - compatible

properties:
  compatible:
    items:
      - enum:
          - qcom,msm8994-ufshc
          - qcom,msm8996-ufshc
          - qcom,qcs615-ufshc
          - qcom,sdm845-ufshc
          - qcom,sm6115-ufshc
          - qcom,sm6125-ufshc
          - qcom,sm6350-ufshc
          - qcom,sm8150-ufshc
      - const: qcom,ufshc
      - const: jedec,ufs-2.0

  qcom,ice:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: phandle to the Inline Crypto Engine node

  reg:
    minItems: 1
    maxItems: 2

  reg-names:
    items:
      - const: std
      - const: ice

required:
  - compatible
  - reg

allOf:
  - $ref: qcom,ufs-common.yaml

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,sdm845-ufshc
              - qcom,sm6350-ufshc
              - qcom,sm8150-ufshc
    then:
      properties:
        clocks:
          minItems: 9
          maxItems: 9
        clock-names:
          items:
            - const: core_clk
            - const: bus_aggr_clk
            - const: iface_clk
            - const: core_clk_unipro
            - const: ref_clk
            - const: tx_lane0_sync_clk
            - const: rx_lane0_sync_clk
            - const: rx_lane1_sync_clk
            - const: ice_core_clk
        reg:
          minItems: 2
        reg-names:
          minItems: 2
      required:
        - reg-names

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,msm8996-ufshc
    then:
      properties:
        clocks:
          minItems: 9
          maxItems: 9
        clock-names:
          items:
            - const: core_clk
            - const: bus_clk
            - const: bus_aggr_clk
            - const: iface_clk
            - const: core_clk_unipro
            - const: core_clk_ice
            - const: ref_clk
            - const: tx_lane0_sync_clk
            - const: rx_lane0_sync_clk
        reg:
          maxItems: 1
        reg-names:
          maxItems: 1

  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,qcs615-ufshc
              - qcom,sm6115-ufshc
              - qcom,sm6125-ufshc
    then:
      properties:
        clocks:
          minItems: 8
          maxItems: 8
        clock-names:
          items:
            - const: core_clk
            - const: bus_aggr_clk
            - const: iface_clk
            - const: core_clk_unipro
            - const: ref_clk
            - const: tx_lane0_sync_clk
            - const: rx_lane0_sync_clk
            - const: ice_core_clk
        reg:
          minItems: 2
        reg-names:
          minItems: 2
      required:
        - reg-names

    # TODO: define clock bindings for qcom,msm8994-ufshc

  - if:
      required:
        - qcom,ice
    then:
      properties:
        reg:
          maxItems: 1
        clocks:
          minItems: 7
          maxItems: 8
    else:
      properties:
        reg:
          minItems: 1
          maxItems: 2
        clocks:
          minItems: 7
          maxItems: 9

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,gcc-sm8150.h>
    #include <dt-bindings/clock/qcom,rpmh.h>
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interconnect/qcom,sm8150.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    soc {
        #address-cells = <2>;
        #size-cells = <2>;

        ufs@1d84000 {
            compatible = "qcom,sm8150-ufshc", "qcom,ufshc",
                         "jedec,ufs-2.0";
            reg = <0x0 0x01d84000 0x0 0x2500>,
                  <0x0 0x01d90000 0x0 0x8000>;
            reg-names = "std", "ice";

            interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
            phys = <&ufs_mem_phy_lanes>;
            phy-names = "ufsphy";
            lanes-per-direction = <2>;
            #reset-cells = <1>;
            resets = <&gcc GCC_UFS_PHY_BCR>;
            reset-names = "rst";
            reset-gpios = <&tlmm 210 GPIO_ACTIVE_LOW>;

            vcc-supply = <&vreg_l7b_2p5>;
            vcc-max-microamp = <1100000>;
            vccq-supply = <&vreg_l9b_1p2>;
            vccq-max-microamp = <1200000>;

            power-domains = <&gcc UFS_PHY_GDSC>;
            iommus = <&apps_smmu 0x300 0>;

            clocks = <&gcc GCC_UFS_PHY_AXI_CLK>,
                     <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>,
                     <&gcc GCC_UFS_PHY_AHB_CLK>,
                     <&gcc GCC_UFS_PHY_UNIPRO_CORE_CLK>,
                     <&rpmhcc RPMH_CXO_CLK>,
                     <&gcc GCC_UFS_PHY_TX_SYMBOL_0_CLK>,
                     <&gcc GCC_UFS_PHY_RX_SYMBOL_0_CLK>,
                     <&gcc GCC_UFS_PHY_RX_SYMBOL_1_CLK>,
                     <&gcc GCC_UFS_PHY_ICE_CORE_CLK>;
            clock-names = "core_clk",
                          "bus_aggr_clk",
                          "iface_clk",
                          "core_clk_unipro",
                          "ref_clk",
                          "tx_lane0_sync_clk",
                          "rx_lane0_sync_clk",
                          "rx_lane1_sync_clk",
                          "ice_core_clk";
            freq-table-hz = <37500000 300000000>,
                            <0 0>,
                            <0 0>,
                            <37500000 300000000>,
                            <0 0>,
                            <0 0>,
                            <0 0>,
                            <0 0>,
                            <0 300000000>;
        };
    };