dt-bindings: pci: Add Sophgo SG2042 PCIe host

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/pci/sophgo,sg2042-pcie-host.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Sophgo SG2042 PCIe Host (Cadence PCIe Wrapper)

description:

  Sophgo SG2042 PCIe host controller is based on the Cadence PCIe core.

maintainers:

  - Chen Wang <unicorn_wang@outlook.com>

properties:

  compatible:

    const: sophgo,sg2042-pcie-host

  reg:

    maxItems: 2

  reg-names:

    items:

      - const: reg

      - const: cfg

  vendor-id:

    const: 0x1f1c

  device-id:

    const: 0x2042

  msi-parent: true

allOf:

  - $ref: cdns-pcie-host.yaml#

required:

  - compatible

  - reg

  - reg-names

unevaluatedProperties: false

examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    pcie@62000000 {

      compatible = "sophgo,sg2042-pcie-host";

      device_type = "pci";

      reg = <0x62000000  0x00800000>,

            <0x48000000  0x00001000>;

      reg-names = "reg", "cfg";

      #address-cells = <3>;

      #size-cells = <2>;

      ranges = <0x81000000 0 0x00000000 0xde000000 0 0x00010000>,

               <0x82000000 0 0xd0400000 0xd0400000 0 0x0d000000>;

      bus-range = <0x00 0xff>;

      vendor-id = <0x1f1c>;

      device-id = <0x2042>;

      cdns,no-bar-match-nbits = <48>;

      msi-parent = <&msi>;

    };