| * Altera PCIe controller |
| |
| Required properties: |
| - compatible : should contain "altr,pcie-root-port-1.0" |
| - reg: a list of physical base address and length for TXS and CRA. |
| - reg-names: must include the following entries: |
| "Txs": TX slave port region |
| "Cra": Control register access region |
| - interrupt-parent: interrupt source phandle. |
| - interrupts: specifies the interrupt source of the parent interrupt controller. |
| The format of the interrupt specifier depends on the parent interrupt |
| controller. |
| - device_type: must be "pci" |
| - #address-cells: set to <3> |
| - #size-cells: set to <2> |
| - #interrupt-cells: set to <1> |
| - ranges: describes the translation of addresses for root ports and standard |
| PCI regions. |
| - interrupt-map-mask and interrupt-map: standard PCI properties to define the |
| mapping of the PCIe interface to interrupt numbers. |
| |
| Optional properties: |
| - msi-parent: Link to the hardware entity that serves as the MSI controller for this PCIe |
| controller. |
| - bus-range: PCI bus numbers covered |
| |
| Example |
| pcie_0: pcie@0xc00000000 { |
| compatible = "altr,pcie-root-port-1.0"; |
| reg = <0xc0000000 0x20000000>, |
| <0xff220000 0x00004000>; |
| reg-names = "Txs", "Cra"; |
| interrupt-parent = <&hps_0_arm_gic_0>; |
| interrupts = <0 40 4>; |
| interrupt-controller; |
| #interrupt-cells = <1>; |
| bus-range = <0x0 0xFF>; |
| device_type = "pci"; |
| msi-parent = <&msi_to_gic_gen_0>; |
| #address-cells = <3>; |
| #size-cells = <2>; |
| interrupt-map-mask = <0 0 0 7>; |
| interrupt-map = <0 0 0 1 &pcie_0 1>, |
| <0 0 0 2 &pcie_0 2>, |
| <0 0 0 3 &pcie_0 3>, |
| <0 0 0 4 &pcie_0 4>; |
| ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000 |
| 0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>; |
| }; |