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-* Xilinx AXI PCIe Root Port Bridge DT description
-
-Required properties:
-- #address-cells: Address representation for root ports, set to <3>
-- #size-cells: Size representation for root ports, set to <2>
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. The value must be 1.
-- compatible: Should contain "xlnx,axi-pcie-host-1.00.a"
-- reg: Should contain AXI PCIe registers location and length
-- device_type: must be "pci"
-- interrupts: Should contain AXI PCIe interrupt
-- interrupt-map-mask,
- interrupt-map: standard PCI properties to define the mapping of the
- PCI interface to interrupt numbers.
-- ranges: ranges for the PCI memory regions (I/O space region is not
- supported by hardware)
- Please refer to the standard PCI bus binding document for a more
- detailed explanation
-
-Optional properties for Zynq/Microblaze:
-- bus-range: PCI bus numbers covered
-
-Interrupt controller child node
-+++++++++++++++++++++++++++++++
-Required properties:
-- interrupt-controller: identifies the node as an interrupt controller
-- #address-cells: specifies the number of cells needed to encode an
- address. The value must be 0.
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. The value must be 1.
-
-NOTE:
-The core provides a single interrupt for both INTx/MSI messages. So,
-created a interrupt controller node to support 'interrupt-map' DT
-functionality. The driver will create an IRQ domain for this map, decode
-the four INTx interrupts in ISR and route them to this domain.
-
-
-Example:
-++++++++
-Zynq:
- pci_express: axi-pcie@50000000 {
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- compatible = "xlnx,axi-pcie-host-1.00.a";
- reg = < 0x50000000 0x1000000 >;
- device_type = "pci";
- interrupts = < 0 52 4 >;
- interrupt-map-mask = <0 0 0 7>;
- interrupt-map = <0 0 0 1 &pcie_intc 1>,
- <0 0 0 2 &pcie_intc 2>,
- <0 0 0 3 &pcie_intc 3>,
- <0 0 0 4 &pcie_intc 4>;
- ranges = < 0x02000000 0 0x60000000 0x60000000 0 0x10000000 >;
-
- pcie_intc: interrupt-controller {
- interrupt-controller;
- #address-cells = <0>;
- #interrupt-cells = <1>;
- };
- };
-
-
-Microblaze:
- pci_express: axi-pcie@10000000 {
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- compatible = "xlnx,axi-pcie-host-1.00.a";
- reg = <0x10000000 0x4000000>;
- device_type = "pci";
- interrupt-parent = <&microblaze_0_intc>;
- interrupts = <1 2>;
- interrupt-map-mask = <0 0 0 7>;
- interrupt-map = <0 0 0 1 &pcie_intc 1>,
- <0 0 0 2 &pcie_intc 2>,
- <0 0 0 3 &pcie_intc 3>,
- <0 0 0 4 &pcie_intc 4>;
- ranges = <0x02000000 0x00000000 0x80000000 0x80000000 0x00000000 0x10000000>;
-
- pcie_intc: interrupt-controller {
- interrupt-controller;
- #address-cells = <0>;
- #interrupt-cells = <1>;
- };
-
- };