Add device tree schema for PCI endpoint function bus to which endpoint function devices should be attached. Then add device tree schema for PCI endpoint function device to include bindings thats generic to all endpoint functions. Finally add device tree schema for PCI endpoint NTB function device by including the generic device tree schema for PCIe endpoint function. Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx> --- .../bindings/pci/endpoint/pci-epf-bus.yaml | 42 +++++++++++ .../bindings/pci/endpoint/pci-epf-device.yaml | 69 +++++++++++++++++++ .../bindings/pci/endpoint/pci-epf-ntb.yaml | 68 ++++++++++++++++++ 3 files changed, 179 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/endpoint/pci-epf-bus.yaml create mode 100644 Documentation/devicetree/bindings/pci/endpoint/pci-epf-device.yaml create mode 100644 Documentation/devicetree/bindings/pci/endpoint/pci-epf-ntb.yaml diff --git a/Documentation/devicetree/bindings/pci/endpoint/pci-epf-bus.yaml b/Documentation/devicetree/bindings/pci/endpoint/pci-epf-bus.yaml new file mode 100644 index 000000000000..1c504f2e85e4 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/endpoint/pci-epf-bus.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/endpoint/pci-epf-bus.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PCI Endpoint Function Bus + +maintainers: + - Kishon Vijay Abraham I <kishon@xxxxxx> + +properties: + compatible: + const: pci-epf-bus + +patternProperties: + "^func@[0-9a-f]+$": + type: object + description: | + PCI Endpoint Function Bus node should have subnodes for each of + the implemented endpoint function. It should follow the bindings + specified for endpoint function in + Documentation/devicetree/bindings/pci/endpoint/ + +examples: + - | + epf_bus { + compatible = "pci-epf-bus"; + + func@0 { + compatible = "pci-epf-ntb"; + epcs = <&pcie0_ep>, <&pcie1_ep>; + epc-names = "primary", "secondary"; + reg = <0>; + epf,vendor-id = /bits/ 16 <0x104c>; + epf,device-id = /bits/ 16 <0xb00d>; + num-mws = <4>; + mws-size = <0x0 0x100000>, <0x0 0x100000>, <0x0 0x100000>, <0x0 0x100000>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/pci/endpoint/pci-epf-device.yaml b/Documentation/devicetree/bindings/pci/endpoint/pci-epf-device.yaml new file mode 100644 index 000000000000..cee72864c8ca --- /dev/null +++ b/Documentation/devicetree/bindings/pci/endpoint/pci-epf-device.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/endpoint/pci-epf-device.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PCI Endpoint Function Device + +maintainers: + - Kishon Vijay Abraham I <kishon@xxxxxx> + +properties: + compatible: + const: pci-epf-bus + +properties: + $nodename: + pattern: "^func@" + + epcs: + description: + Phandle to the endpoint controller device. Should have "2" entries for + NTB endpoint function and "1" entry for others. + minItems: 1 + maxItems: 2 + + epc-names: + description: + Must contain an entry for each entry in "epcs" when "epcs" have more than + one entry. + + reg: + maxItems: 0 + description: Must contain the index number of the function. + + epf,vendor-id: + description: + The PCI vendor ID + allOf: + - $ref: /schemas/types.yaml#/definitions/uint16 + + epf,device-id: + description: + The PCI device ID + allOf: + - $ref: /schemas/types.yaml#/definitions/uint16 + + epf,baseclass-code: + description: Code to classify the type of operation the function performs + allOf: + - $ref: /schemas/types.yaml#/definitions/uint8 + + epf,subclass-code: + description: + Specifies a base class sub-class, which identifies more specifically the + operation of the Function + allOf: + - $ref: /schemas/types.yaml#/definitions/uint8 + + epf,subsys-vendor-id: + description: Code to identify vendor of the add-in card or subsystem + allOf: + - $ref: /schemas/types.yaml#/definitions/uint16 + + epf,subsys-id: + description: Code to specify an id that is specific to a vendor + allOf: + - $ref: /schemas/types.yaml#/definitions/uint16 diff --git a/Documentation/devicetree/bindings/pci/endpoint/pci-epf-ntb.yaml b/Documentation/devicetree/bindings/pci/endpoint/pci-epf-ntb.yaml new file mode 100644 index 000000000000..92c2e522b9e5 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/endpoint/pci-epf-ntb.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/endpoint/pci-epf-ntb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PCI Endpoint NTB Function Device + +maintainers: + - Kishon Vijay Abraham I <kishon@xxxxxx> + +allOf: + - $ref: "pci-epf-device.yaml#" + +properties: + compatible: + const: pci-epf-ntb + + epcs: + minItems: 2 + maxItems: 2 + + epc-names: + items: + - const: primary + - const: secondary + + num-mws: + description: + Specify the number of memory windows + allOf: + - $ref: /schemas/types.yaml#/definitions/uint8 + minimum: 1 + maximum: 4 + + mws-size: + description: + List of 'num-mws' entries containing size of each memory window. + minItems: 1 + maxItems: 4 + +required: + - compatible + - epcs + - epc-names + - epf,vendor-id + - epf,device-id + - num-mws + - mws-size + +examples: + - | + epf_bus { + compatible = "pci-epf-bus"; + + func@0 { + compatible = "pci-epf-ntb"; + reg = <0>; + epcs = <&pcie0_ep>, <&pcie1_ep>; + epc-names = "primary", "secondary"; + epf,vendor-id = /bits/ 16 <0x104c>; + epf,device-id = /bits/ 16 <0xb00d>; + num-mws = <4>; + mws-size = <0x0 0x100000>, <0x0 0x100000>, <0x0 0x100000>, <0x0 0x100000>; + }; + }; +... -- 2.17.1
