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     1 Sigma Designs Tango PCIe controller
    2 
    3 Required properties:
    4 
    5 - compatible: "sigma,smp8759-pcie"
    6 - reg: address/size of PCI configuration space, address/size of register area
    7 - bus-range: defined by size of PCI configuration space
    8 - device_type: "pci"
    9 - #size-cells: <2>
   10 - #address-cells: <3>
   11 - msi-controller
   12 - ranges: translation from system to bus addresses
   13 - interrupts: spec for misc interrupts, spec for MSI
   14 
   15 Example:
   16 
   17         pcie@2e000 {
   18                 compatible = "sigma,smp8759-pcie";
   19                 reg = <0x50000000 0x400000>, <0x2e000 0x100>;
   20                 bus-range = <0 3>;
   21                 device_type = "pci";
   22                 #size-cells = <2>;
   23                 #address-cells = <3>;
   24                 msi-controller;
   25                 ranges = <0x02000000 0x0 0x00400000  0x50400000  0x0 0x3c00000>;
   26                 interrupts =
   27                         <54 IRQ_TYPE_LEVEL_HIGH>, /* misc interrupts */
   28                         <55 IRQ_TYPE_LEVEL_HIGH>; /* MSI */
   29         };
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