Bindings/pci/rockchip-dw-pcie-ep.yaml

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

title: DesignWare based PCIe Endpoint controller on Rockchip SoCs

maintainers:
  - Niklas Cassel <cassel@kernel.org>

description: |+
  RK3588 SoC PCIe Endpoint controller is based on the Synopsys DesignWare
  PCIe IP and thus inherits all the common properties defined in
  snps,dw-pcie-ep.yaml.

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

properties:
  compatible:
    enum:
      - rockchip,rk3568-pcie-ep
      - rockchip,rk3588-pcie-ep

  reg:
    items:
      - description: Data Bus Interface (DBI) registers
      - description: Data Bus Interface (DBI) shadow registers
      - description: Rockchip designed configuration registers
      - description: Memory region used to map remote RC address space
      - description: Internal Address Translation Unit (iATU) registers

  reg-names:
    items:
      - const: dbi
      - const: dbi2
      - const: apb
      - const: addr_space
      - const: atu

required:
  - interrupts
  - interrupt-names

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/power/rk3588-power.h>
    #include <dt-bindings/reset/rockchip,rk3588-cru.h>

    soc {
        #address-cells = <2>;
        #size-cells = <2>;

        pcie3x4_ep: pcie-ep@fe150000 {
            compatible = "rockchip,rk3588-pcie-ep";
            reg = <0xa 0x40000000 0x0 0x00100000>,
                  <0xa 0x40100000 0x0 0x00100000>,
                  <0x0 0xfe150000 0x0 0x00010000>,
                  <0x9 0x00000000 0x0 0x40000000>,
                  <0xa 0x40300000 0x0 0x00100000>;
            reg-names = "dbi", "dbi2", "apb", "addr_space", "atu";
            clocks = <&cru ACLK_PCIE_4L_MSTR>, <&cru ACLK_PCIE_4L_SLV>,
                     <&cru ACLK_PCIE_4L_DBI>, <&cru PCLK_PCIE_4L>,
                     <&cru CLK_PCIE_AUX0>, <&cru CLK_PCIE4L_PIPE>;
            clock-names = "aclk_mst", "aclk_slv",
                          "aclk_dbi", "pclk",
                          "aux", "pipe";
            interrupts = <GIC_SPI 263 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 262 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 261 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 260 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 259 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 271 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH 0>,
                         <GIC_SPI 270 IRQ_TYPE_LEVEL_HIGH 0>;
            interrupt-names = "sys", "pmc", "msg", "legacy", "err",
                              "dma0", "dma1", "dma2", "dma3";
            max-link-speed = <3>;
            num-lanes = <4>;
            phys = <&pcie30phy>;
            phy-names = "pcie-phy";
            power-domains = <&power RK3588_PD_PCIE>;
            resets = <&cru SRST_PCIE0_POWER_UP>, <&cru SRST_P_PCIE0>;
            reset-names = "pwr", "pipe";
        };
    };
...