* ThunderX PEM PCIe host controller
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Firmware-initialized PCI host controller found on some Cavium
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ThunderX processors.
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The properties and their meanings are identical to those described in
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host-generic-pci.txt except as listed below.
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Properties of the host controller node that differ from
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host-generic-pci.txt:
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- compatible : Must be "cavium,pci-host-thunder-pem"
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- reg : Two entries: First the configuration space for down
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stream devices base address and size, as accessed
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from the parent bus. Second, the register bank of
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the PEM device PCIe bridge.
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Example:
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pci@87e0,c2000000 {
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compatible = "cavium,pci-host-thunder-pem";
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device_type = "pci";
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msi-parent = <&its>;
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msi-map = <0 &its 0x10000 0x10000>;
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bus-range = <0x8f 0xc7>;
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#size-cells = <2>;
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#address-cells = <3>;
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reg = <0x8880 0x8f000000 0x0 0x39000000>, /* Configuration space */
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<0x87e0 0xc2000000 0x0 0x00010000>; /* PEM space */
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ranges = <0x01000000 0x00 0x00020000 0x88b0 0x00020000 0x00 0x00010000>, /* I/O */
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<0x03000000 0x00 0x10000000 0x8890 0x10000000 0x0f 0xf0000000>, /* mem64 */
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<0x43000000 0x10 0x00000000 0x88a0 0x00000000 0x10 0x00000000>, /* mem64-pref */
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<0x03000000 0x87e0 0xc2f00000 0x87e0 0xc2000000 0x00 0x00100000>; /* mem64 PEM BAR4 */
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#interrupt-cells = <1>;
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interrupt-map-mask = <0 0 0 7>;
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interrupt-map = <0 0 0 1 &gic0 0 0 0 24 4>, /* INTA */
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<0 0 0 2 &gic0 0 0 0 25 4>, /* INTB */
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<0 0 0 3 &gic0 0 0 0 26 4>, /* INTC */
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<0 0 0 4 &gic0 0 0 0 27 4>; /* INTD */
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};
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