Documentation/devicetree/bindings/pci/qcom,pcie-sdx55.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/qcom,pcie-sdx55.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm SDX55 PCI Express Root Complex

maintainers:
  - Bjorn Andersson <andersson@kernel.org>
  - Manivannan Sadhasivam <mani@kernel.org>

properties:
  compatible:
    enum:
      - qcom,pcie-sdx55

  reg:
    minItems: 5
    maxItems: 6

  reg-names:
    minItems: 5
    items:
      - const: parf
      - const: dbi
      - const: elbi
      - const: atu
      - const: config
      - const: mhi

  clocks:
    maxItems: 7

  clock-names:
    items:
      - const: pipe
      - const: aux
      - const: cfg
      - const: bus_master # Master AXI clock
      - const: bus_slave # Slave AXI clock
      - const: slave_q2a
      - const: sleep

  interrupts:
    maxItems: 8

  interrupt-names:
    items:
      - const: msi
      - const: msi2
      - const: msi3
      - const: msi4
      - const: msi5
      - const: msi6
      - const: msi7
      - const: msi8

  resets:
    maxItems: 1

  reset-names:
    items:
      - const: pci

required:
  - power-domains
  - resets
  - reset-names

allOf:
  - $ref: qcom,pcie-common.yaml#

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,gcc-sdx55.h>
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    pcie@1c00000 {
        compatible = "qcom,pcie-sdx55";
        reg = <0x01c00000 0x3000>,
              <0x40000000 0xf1d>,
              <0x40000f20 0xc8>,
              <0x40001000 0x1000>,
              <0x40100000 0x100000>;
        reg-names = "parf",
                    "dbi",
                    "elbi",
                    "atu",
                    "config";
        ranges = <0x01000000 0x0 0x00000000 0x40200000 0x0 0x100000>,
                 <0x02000000 0x0 0x40300000 0x40300000 0x0 0x3fd00000>;

        device_type = "pci";
        linux,pci-domain = <0>;
        bus-range = <0x00 0xff>;
        num-lanes = <1>;

        #address-cells = <3>;
        #size-cells = <2>;

        interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
        interrupt-names = "msi",
                          "msi2",
                          "msi3",
                          "msi4",
                          "msi5",
                          "msi6",
                          "msi7",
                          "msi8";
        #interrupt-cells = <1>;
        interrupt-map-mask = <0 0 0 0x7>;
        interrupt-map = <0 0 0 1 &intc GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
                        <0 0 0 2 &intc GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
                        <0 0 0 3 &intc GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
                        <0 0 0 4 &intc GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>; /* int_d */

        clocks = <&gcc GCC_PCIE_PIPE_CLK>,
                 <&gcc GCC_PCIE_AUX_CLK>,
                 <&gcc GCC_PCIE_CFG_AHB_CLK>,
                 <&gcc GCC_PCIE_MSTR_AXI_CLK>,
                 <&gcc GCC_PCIE_SLV_AXI_CLK>,
                 <&gcc GCC_PCIE_SLV_Q2A_AXI_CLK>,
                 <&gcc GCC_PCIE_SLEEP_CLK>;
        clock-names = "pipe",
                      "aux",
                      "cfg",
                      "bus_master",
                      "bus_slave",
                      "slave_q2a",
                      "sleep";

        assigned-clocks = <&gcc GCC_PCIE_AUX_CLK>;
        assigned-clock-rates = <19200000>;

        iommu-map = <0x0 &apps_smmu 0x0200 0x1>,
                    <0x100 &apps_smmu 0x0201 0x1>,
                    <0x200 &apps_smmu 0x0202 0x1>,
                    <0x300 &apps_smmu 0x0203 0x1>,
                    <0x400 &apps_smmu 0x0204 0x1>;

        power-domains = <&gcc PCIE_GDSC>;

        phys = <&pcie_phy>;
        phy-names = "pciephy";

        resets = <&gcc GCC_PCIE_BCR>;
        reset-names = "pci";

        perst-gpios = <&tlmm 57 GPIO_ACTIVE_LOW>;
        wake-gpios = <&tlmm 53 GPIO_ACTIVE_HIGH>;

        pcie@0 {
            device_type = "pci";
            reg = <0x0 0x0 0x0 0x0 0x0>;
            bus-range = <0x01 0xff>;

            #address-cells = <3>;
            #size-cells = <2>;
            ranges;
        };
    };