diff options
Diffstat (limited to 'Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml | 134 |
1 files changed, 61 insertions, 73 deletions
diff --git a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml index edb4f81253c8..47b0bad690d5 100644 --- a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml +++ b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml @@ -4,13 +4,13 @@ $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 Device Tree Bindings +title: Microchip PCIe Root Port Bridge Controller maintainers: - Daire McNamara <daire.mcnamara@microchip.com> allOf: - - $ref: /schemas/pci/pci-bus.yaml# + - $ref: plda,xpressrich3-axi-common.yaml# - $ref: /schemas/interrupt-controller/msi-controller.yaml# properties: @@ -18,92 +18,80 @@ properties: const: microchip,pcie-host-1.0 # PolarFire reg: - maxItems: 2 + minItems: 3 reg-names: - items: - - const: cfg - - const: apb - - interrupts: + minItems: 3 + + clocks: + description: + Fabric Interface Controllers, FICs, are the interface between the FPGA + fabric and the core complex on PolarFire SoC. The FICs require two clocks, + one from each side of the interface. The "FIC clocks" described by this + property are on the core complex side & communication through a FIC is not + possible unless it's corresponding clock is enabled. A clock must be + enabled for each of the interfaces the root port is connected through. + This could in theory be all 4 interfaces, one interface or any combination + in between. minItems: 1 items: - - description: PCIe host controller - - description: builtin MSI controller - - interrupt-names: + - description: FIC0's clock + - description: FIC1's clock + - description: FIC2's clock + - description: FIC3's clock + + clock-names: + description: + As any FIC connection combination is possible, the names should match the + order in the clocks property and take the form "ficN" where N is a number + 0-3 minItems: 1 + maxItems: 4 items: - - const: pcie - - const: msi - - ranges: - maxItems: 1 - - msi-controller: - description: Identifies the node as an MSI controller. - - msi-parent: - description: MSI controller the device is capable of using. + pattern: '^fic[0-3]$' - interrupt-controller: - type: object - properties: - '#address-cells': - const: 0 + dma-noncoherent: true - '#interrupt-cells': - const: 1 - - interrupt-controller: true - - required: - - '#address-cells' - - '#interrupt-cells' - - interrupt-controller - - additionalProperties: false + ranges: + minItems: 1 + maxItems: 3 -required: - - reg - - reg-names - - "#interrupt-cells" - - interrupts - - interrupt-map-mask - - interrupt-map - - msi-controller + dma-ranges: + minItems: 1 + maxItems: 6 unevaluatedProperties: false examples: - | soc { - #address-cells = <2>; + #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>; - pcie0: pcie@2030000000 { - compatible = "microchip,pcie-host-1.0"; - reg = <0x0 0x70000000 0x0 0x08000000>, - <0x0 0x43000000 0x0 0x00010000>; - reg-names = "cfg", "apb"; - 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; - }; + #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; }; + }; }; |