xref: /linux/Documentation/devicetree/bindings/pci/qcom,pcie-apq8064.yaml (revision c17ee635fd3a482b2ad2bf5e269755c2eae5f25e)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/qcom,pcie-apq8064.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm APQ8064/IPQ8064 PCI Express Root Complex

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

properties:
  compatible:
    enum:
      - qcom,pcie-apq8064
      - qcom,pcie-ipq8064
      - qcom,pcie-ipq8064-v2

  reg:
    maxItems: 4

  reg-names:
    items:
      - const: dbi
      - const: elbi
      - const: parf
      - const: config

  clocks:
    minItems: 3
    maxItems: 5

  clock-names:
    minItems: 3
    items:
      - const: core # Clocks the pcie hw block
      - const: iface # Configuration AHB clock
      - const: phy
      - const: aux
      - const: ref

  interrupts:
    maxItems: 1

  interrupt-names:
    items:
      - const: msi

  resets:
    minItems: 5
    maxItems: 6

  reset-names:
    minItems: 5
    items:
      - const: axi
      - const: ahb
      - const: por
      - const: pci
      - const: phy
      - const: ext

  vdda-supply:
    description: A phandle to the core analog power supply

  vdda_phy-supply:
    description: A phandle to the core analog power supply for PHY

  vdda_refclk-supply:
    description: A phandle to the core analog power supply for IC which generates reference clock

required:
  - resets
  - reset-names
  - vdda-supply
  - vdda_phy-supply
  - vdda_refclk-supply

allOf:
  - $ref: qcom,pcie-common.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - qcom,pcie-apq8064
    then:
      properties:
        clocks:
          maxItems: 3
        clock-names:
          maxItems: 3
        resets:
          maxItems: 5
        reset-names:
          maxItems: 5
    else:
      properties:
        clocks:
          minItems: 5
        clock-names:
          minItems: 5
        resets:
          minItems: 6
        reset-names:
          minItems: 6

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,gcc-msm8960.h>
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/reset/qcom,gcc-msm8960.h>

    pcie@1b500000 {
        compatible = "qcom,pcie-apq8064";
        reg = <0x1b500000 0x1000>,
              <0x1b502000 0x80>,
              <0x1b600000 0x100>,
              <0x0ff00000 0x100000>;
        reg-names = "dbi", "elbi", "parf", "config";
        ranges = <0x81000000 0x0 0x00000000 0x0fe00000 0x0 0x00100000>, /* I/O */
                 <0x82000000 0x0 0x08000000 0x08000000 0x0 0x07e00000>; /* mem */

        device_type = "pci";
        linux,pci-domain = <0>;
        bus-range = <0x00 0xff>;
        num-lanes = <1>;
        #address-cells = <3>;
        #size-cells = <2>;

        clocks = <&gcc PCIE_A_CLK>,
                 <&gcc PCIE_H_CLK>,
                 <&gcc PCIE_PHY_REF_CLK>;
        clock-names = "core", "iface", "phy";

        interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>;
        interrupt-names = "msi";
        #interrupt-cells = <1>;
        interrupt-map-mask = <0 0 0 0x7>;
        interrupt-map = <0 0 0 1 &intc GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
                        <0 0 0 2 &intc GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
                        <0 0 0 3 &intc GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
                        <0 0 0 4 &intc GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; /* int_d */

        resets = <&gcc PCIE_ACLK_RESET>,
                 <&gcc PCIE_HCLK_RESET>,
                 <&gcc PCIE_POR_RESET>,
                 <&gcc PCIE_PCI_RESET>,
                 <&gcc PCIE_PHY_RESET>;
        reset-names = "axi", "ahb", "por", "pci", "phy";

        perst-gpios = <&tlmm_pinmux 27 GPIO_ACTIVE_LOW>;
        vdda-supply = <&pm8921_s3>;
        vdda_phy-supply = <&pm8921_lvs6>;
        vdda_refclk-supply = <&v3p3_fixed>;

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

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