Commit 0f8b97d8 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Rob Herring
Browse files

dt-bindings: PCI: add snps,dw-pcie-ep.yaml 



Currently, the designware schema is defined on a text file:
	designware-pcie.txt

It contains two separate schemas on it:

- snps,dw-pcie
  This one uses the pci-bus.yaml schema;
- snps,dw-pcie-ep
  This one uses the pci-ep.yaml schema.

As the:
	AllOf:
	  - $ref: <foo>

for the endpoint part is different than the PCI one, place
it on a separate yaml file.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/26025b256232c2e4bd91954907b9d92db27199a3.1626608375.git.mchehab+huawei@kernel.org


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 42694f9f

Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml

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# 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#



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]



  reset-gpio:

    description: GPIO pin number of PERST# signal

    maxItems: 1

    deprecated: true



  reset-gpios:

    description: GPIO controlled connection to PERST# signal

    maxItems: 1



  snps,enable-cdm-check:

    type: boolean

    description: |

      This is a boolean property and if present enables

      automatic checking of CDM (Configuration Dependent Module) registers

      for data corruption. CDM registers include standard PCIe configuration

      space registers, Port Logic registers, DMA and iATU (internal Address

      Translation Unit) registers.



  num-ib-windows:

    description: number of inbound address translation windows

    maxItems: 1

    deprecated: true



  num-ob-windows:

    description: number of outbound address translation windows

    maxItems: 1

    deprecated: true



  max-functions:

    $ref: /schemas/types.yaml#/definitions/uint32

    description: maximum number of functions that can be configured



required:

  - reg

  - reg-names

  - compatible



unevaluatedProperties: false



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";

      };

    };

MAINTAINERS

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@@ -14277,6 +14277,7 @@ L: linux-pci@vger.kernel.org 
S:	Maintained

F:	Documentation/devicetree/bindings/pci/designware-pcie.txt

F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml

F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml

F:	drivers/pci/controller/dwc/*designware*









PCI DRIVER FOR TI DRA7XX/J721E