1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/pci/pci-ep.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: PCI Endpoint Controller 8 9description: | 10 Common properties for PCI Endpoint Controller Nodes. 11 12maintainers: 13 - Kishon Vijay Abraham I <kishon@kernel.org> 14 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> 15 16properties: 17 $nodename: 18 pattern: "^pcie-ep@" 19 20 max-functions: 21 description: Maximum number of functions that can be configured 22 $ref: /schemas/types.yaml#/definitions/uint8 23 minimum: 1 24 default: 1 25 maximum: 255 26 27 max-virtual-functions: 28 description: Array representing the number of virtual functions corresponding to each physical 29 function 30 $ref: /schemas/types.yaml#/definitions/uint8-array 31 minItems: 1 32 maxItems: 255 33 34 max-link-speed: 35 $ref: /schemas/types.yaml#/definitions/uint32 36 enum: [ 1, 2, 3, 4 ] 37 38 num-lanes: 39 description: maximum number of lanes 40 $ref: /schemas/types.yaml#/definitions/uint32 41 minimum: 1 42 default: 1 43 maximum: 16 44 45 linux,pci-domain: 46 description: 47 If present this property assigns a fixed PCI domain number to a PCI 48 Endpoint Controller, otherwise an unstable (across boots) unique number 49 will be assigned. It is required to either not set this property at all 50 or set it for all PCI endpoint controllers in the system, otherwise 51 potentially conflicting domain numbers may be assigned to endpoint 52 controllers. The domain number for each endpoint controller in the system 53 must be unique. 54 $ref: /schemas/types.yaml#/definitions/uint32 55 56required: 57 - compatible 58 59additionalProperties: true 60