linux/Documentation/devicetree/bindings/ata/marvell.txt
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Prefs
   1* Marvell Orion SATA
   2
   3Required Properties:
   4- compatibility : "marvell,orion-sata"
   5- reg           : Address range of controller
   6- interrupts    : Interrupt controller is using
   7- nr-ports      : Number of SATA ports in use.
   8
   9Example:
  10
  11        sata@80000 {
  12                compatible = "marvell,orion-sata";
  13                reg = <0x80000 0x5000>;
  14                interrupts = <21>;
  15                nr-ports = <2>;
  16        }
  17