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Diffstat (limited to 'Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml new file mode 100644 index 000000000000..47b0bad690d5 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml @@ -0,0 +1,97 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/microchip,pcie-host.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip PCIe Root Port Bridge Controller + +maintainers: + - Daire McNamara <daire.mcnamara@microchip.com> + +allOf: + - $ref: plda,xpressrich3-axi-common.yaml# + - $ref: /schemas/interrupt-controller/msi-controller.yaml# + +properties: + compatible: + const: microchip,pcie-host-1.0 # PolarFire + + reg: + minItems: 3 + + reg-names: + minItems: 3 + + clocks: + description: + Fabric Interface Controllers, FICs, are the interface between the FPGA + fabric and the core complex on PolarFire SoC. The FICs require two clocks, + one from each side of the interface. The "FIC clocks" described by this + property are on the core complex side & communication through a FIC is not + possible unless it's corresponding clock is enabled. A clock must be + enabled for each of the interfaces the root port is connected through. + This could in theory be all 4 interfaces, one interface or any combination + in between. + minItems: 1 + items: + - description: FIC0's clock + - description: FIC1's clock + - description: FIC2's clock + - description: FIC3's clock + + clock-names: + description: + As any FIC connection combination is possible, the names should match the + order in the clocks property and take the form "ficN" where N is a number + 0-3 + minItems: 1 + maxItems: 4 + items: + pattern: '^fic[0-3]$' + + dma-noncoherent: true + + ranges: + minItems: 1 + maxItems: 3 + + dma-ranges: + minItems: 1 + maxItems: 6 + +unevaluatedProperties: false + +examples: + - | + soc { + #address-cells = <2>; + #size-cells = <2>; + pcie0: pcie@2030000000 { + compatible = "microchip,pcie-host-1.0"; + reg = <0x0 0x70000000 0x0 0x08000000>, + <0x0 0x43008000 0x0 0x00002000>, + <0x0 0x4300a000 0x0 0x00002000>; + reg-names = "cfg", "bridge", "ctrl"; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + interrupts = <119>; + interrupt-map-mask = <0x0 0x0 0x0 0x7>; + interrupt-map = <0 0 0 1 &pcie_intc0 0>, + <0 0 0 2 &pcie_intc0 1>, + <0 0 0 3 &pcie_intc0 2>, + <0 0 0 4 &pcie_intc0 3>; + interrupt-parent = <&plic0>; + msi-parent = <&pcie0>; + msi-controller; + bus-range = <0x00 0x7f>; + ranges = <0x03000000 0x0 0x78000000 0x0 0x78000000 0x0 0x04000000>; + pcie_intc0: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + }; + }; + }; |
