|  | Allwinner Sunxi Interrupt Controller | 
|  |  | 
|  | Required properties: | 
|  |  | 
|  | - compatible : should be "allwinner,sun4i-a10-ic" | 
|  | - reg : Specifies base physical address and size of the registers. | 
|  | - interrupt-controller : Identifies the node as an interrupt controller | 
|  | - #interrupt-cells : Specifies the number of cells needed to encode an | 
|  | interrupt source. The value shall be 1. | 
|  |  | 
|  | Example: | 
|  |  | 
|  | intc: interrupt-controller { | 
|  | compatible = "allwinner,sun4i-a10-ic"; | 
|  | reg = <0x01c20400 0x400>; | 
|  | interrupt-controller; | 
|  | #interrupt-cells = <1>; | 
|  | }; |