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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/starfive,jh7110-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: StarFive JH7110 PCIe 2.0 host controller

maintainers:
  - Minda Chen <minda.chen@starfivetech.com>

allOf:
  - $ref: /schemas/pci/pci-bus.yaml#
  - $ref: /schemas/interrupt-controller/msi-controller.yaml#

properties:
  compatible:
    const: starfive,jh7110-pcie

  reg:
    maxItems: 2

  reg-names:
    items:
      - const: reg
      - const: config

  msi-parent: true

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 4

  clock-names:
    items:
      - const: noc
      - const: tl
      - const: axi_mst0
      - const: apb

  resets:
    items:
      - description: AXI MST0 reset
      - description: AXI SLAVE reset
      - description: AXI SLAVE0 reset
      - description: PCIE BRIDGE reset
      - description: PCIE CORE reset
      - description: PCIE APB reset

  reset-names:
    items:
      - const: mst0
      - const: slv0
      - const: slv
      - const: brg
      - const: core
      - const: apb

  starfive,stg-syscon:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      items:
        - description: phandle to System Register Controller stg_syscon node.
        - description: register0 offset of STG_SYSCONSAIF__SYSCFG register for PCIe.
        - description: register1 offset of STG_SYSCONSAIF__SYSCFG register for PCIe.
        - description: register2 offset of STG_SYSCONSAIF__SYSCFG register for PCIe.
        - description: register3 offset of STG_SYSCONSAIF__SYSCFG register for PCIe.
    description:
      The phandle to System Register Controller syscon node and the offset
      of STG_SYSCONSAIF__SYSCFG register for PCIe. Total 4 regsisters offset
      for PCIe.

  pwren-gpios:
    description: Should specify the GPIO for controlling the PCI bus device power on.
    maxItems: 1

  reset-gpios:
    maxItems: 1

  phys:
    maxItems: 1

  interrupt-controller:
    type: object
    properties:
      '#address-cells':
        const: 0

      '#interrupt-cells':
        const: 1

      interrupt-controller: true

    required:
      - '#address-cells'
      - '#interrupt-cells'
      - interrupt-controller

    additionalProperties: false

required:
  - reg
  - reg-names
  - "#interrupt-cells"
  - interrupts
  - interrupt-map-mask
  - interrupt-map
  - clocks
  - clock-names
  - resets
  - msi-controller

unevaluatedProperties: false

examples:
  - |
    bus {
        #address-cells = <2>;
        #size-cells = <2>;

        pcie0: pcie@2B000000 {
            compatible = "starfive,jh7110-pcie";
            #address-cells = <3>;
            #size-cells = <2>;
            #interrupt-cells = <1>;
            reg = <0x0 0x2B000000 0x0 0x1000000>,
                  <0x9 0x40000000 0x0 0x10000000>;
            reg-names = "reg", "config";
            device_type = "pci";
            starfive,stg-syscon = <&stg_syscon 0xc0 0xc4 0x130 0x1b8>;
            bus-range = <0x0 0xff>;
            ranges = <0x82000000  0x0 0x30000000  0x0 0x30000000 0x0 0x08000000>,
                     <0xc3000000  0x9 0x00000000  0x9 0x00000000 0x0 0x40000000>;
            interrupt-parent = <&plic>;
            interrupts = <56>;
            interrupt-map-mask = <0x0 0x0 0x0 0x7>;
            interrupt-map = <0x0 0x0 0x0 0x1 &pcie_intc0 0x1>,
                            <0x0 0x0 0x0 0x2 &pcie_intc0 0x2>,
                            <0x0 0x0 0x0 0x3 &pcie_intc0 0x3>,
                            <0x0 0x0 0x0 0x4 &pcie_intc0 0x4>;
            msi-parent = <&pcie0>;
            msi-controller;
            clocks = <&syscrg 86>,
                     <&stgcrg 10>,
                     <&stgcrg 8>,
                     <&stgcrg 9>;
            clock-names = "noc", "tl", "axi_mst0", "apb";
            resets = <&stgcrg 11>,
                     <&stgcrg 12>,
                     <&stgcrg 13>,
                     <&stgcrg 14>,
                     <&stgcrg 15>,
                     <&stgcrg 16>;

            pcie_intc0: interrupt-controller {
                #address-cells = <0>;
                #interrupt-cells = <1>;
                interrupt-controller;
            };
        };
    };