Add PCIe Host (RC) and Endpoint (EP) device tree schema for Cadence PCIe core library. Platforms using Cadence PCIe core can include the schemas added here in the platform specific schemas. Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx> --- .../devicetree/bindings/pci/cdns-pcie-ep.yaml | 19 ++++++++ .../bindings/pci/cdns-pcie-host.yaml | 27 +++++++++++ .../devicetree/bindings/pci/cdns-pcie.yaml | 45 +++++++++++++++++++ 3 files changed, 91 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml create mode 100644 Documentation/devicetree/bindings/pci/cdns-pcie-host.yaml create mode 100644 Documentation/devicetree/bindings/pci/cdns-pcie.yaml diff --git a/Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml new file mode 100644 index 000000000000..b9b0b0a5cd88 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/pci/cdns-pcie-ep.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Cadence PCIe Endpoint + +maintainers: + - Tom Joseph <tjoseph@xxxxxxxxxxx> + +allOf: + - $ref: "cdns-pcie.yaml#" + +properties: + max-functions: + description: Maximum number of functions that can be configured (default 1) + allOf: + - $ref: /schemas/types.yaml#/definitions/uint8 diff --git a/Documentation/devicetree/bindings/pci/cdns-pcie-host.yaml b/Documentation/devicetree/bindings/pci/cdns-pcie-host.yaml new file mode 100644 index 000000000000..e05c1497ddec --- /dev/null +++ b/Documentation/devicetree/bindings/pci/cdns-pcie-host.yaml @@ -0,0 +1,27 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/pci/cdns-pcie-host.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Cadence PCIe Host + +maintainers: + - Tom Joseph <tjoseph@xxxxxxxxxxx> + +allOf: + - $ref: "/schemas/pci/pci-bus.yaml#" + - $ref: "cdns-pcie.yaml#" + +properties: + cdns,no-bar-match-nbits: + description: + Set into the no BAR match register to configure the number of least + significant bits kept during inbound (PCIe -> AXI) address translations + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 32 + default: 32 + + msi-parent: true diff --git a/Documentation/devicetree/bindings/pci/cdns-pcie.yaml b/Documentation/devicetree/bindings/pci/cdns-pcie.yaml new file mode 100644 index 000000000000..25c49d43f5cd --- /dev/null +++ b/Documentation/devicetree/bindings/pci/cdns-pcie.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/pci/cdns-pcie.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Cadence PCIe Core + +maintainers: + - Tom Joseph <tjoseph@xxxxxxxxxxx> + +properties: + max-link-speed: + description: maximum link speed + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + maximum: 4 + + num-lanes: + description: maximum number of lanes + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + maximum: 2 + + cdns,max-outbound-regions: + description: maximum number of outbound regions + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + maximum: 32 + default: 32 + + phys: + description: + One per lane if more than one in the list. If only one PHY listed it must + manage all lanes. + minItems: 1 + maxItems: 16 + + phy-names: + items: + - const: pcie-phy + # FIXME: names when more than 1 -- 2.17.1
