xref: /freebsd/sys/contrib/device-tree/Bindings/mips/cavium/ciu3.txt (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1* Central Interrupt Unit v3
2
3Properties:
4- compatible: "cavium,octeon-7890-ciu3"
5
6  Compatibility with 78XX and 73XX SOCs.
7
8- interrupt-controller:  This is an interrupt controller.
9
10- reg: The base address of the CIU's register bank.
11
12- #interrupt-cells: Must be <2>.  The first cell is source number.
13  The second cell indicates the triggering semantics, and may have a
14  value of either 4 for level semantics, or 1 for edge semantics.
15
16Example:
17	interrupt-controller@1010000000000 {
18		compatible = "cavium,octeon-7890-ciu3";
19		interrupt-controller;
20		/* Interrupts are specified by two parts:
21		 * 1) Source number (20 significant bits)
22		 * 2) Trigger type: (4 == level, 1 == edge)
23		 */
24		#address-cells = <0>;
25		#interrupt-cells = <2>;
26		reg = <0x10100 0x00000000 0x0 0xb0000000>;
27	};
28