xref: /openbmc/linux/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml (revision 057646a5)

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/snps,dw-pcie-ep.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Synopsys DesignWare PCIe endpoint interface

maintainers:
  - Jingoo Han <jingoohan1@gmail.com>
  - Gustavo Pimentel <gustavo.pimentel@synopsys.com>

description: |
  Synopsys DesignWare PCIe host controller endpoint

allOf:
  - $ref: /schemas/pci/pci-ep.yaml#
  - $ref: /schemas/pci/snps,dw-pcie-common.yaml#

properties:
  compatible:
    anyOf:
      - {}
      - const: snps,dw-pcie-ep

  reg:
    description: |
      It should contain Data Bus Interface (dbi) and config registers for all
      versions.
      For designware core version >= 4.80, it may contain ATU address space.
    minItems: 2
    maxItems: 4

  reg-names:
    minItems: 2
    maxItems: 4
    items:
      enum: [dbi, dbi2, config, atu, addr_space, link, atu_dma, appl]

required:
  - reg
  - reg-names
  - compatible

additionalProperties: true

examples:
  - |
    bus {
      #address-cells = <1>;
      #size-cells = <1>;
      pcie-ep@dfd00000 {
        compatible = "snps,dw-pcie-ep";
        reg = <0xdfc00000 0x0001000>, /* IP registers 1 */
              <0xdfc01000 0x0001000>, /* IP registers 2 */
              <0xd0000000 0x2000000>; /* Configuration space */
        reg-names = "dbi", "dbi2", "addr_space";
      };
    };