- 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@c00000000 {
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>;
};
