xref: /freebsd/sys/contrib/device-tree/Bindings/mips/cavium/ciu3.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel Vadot* Central Interrupt Unit v3
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotProperties:
4*c66ec88fSEmmanuel Vadot- compatible: "cavium,octeon-7890-ciu3"
5*c66ec88fSEmmanuel Vadot
6*c66ec88fSEmmanuel Vadot  Compatibility with 78XX and 73XX SOCs.
7*c66ec88fSEmmanuel Vadot
8*c66ec88fSEmmanuel Vadot- interrupt-controller:  This is an interrupt controller.
9*c66ec88fSEmmanuel Vadot
10*c66ec88fSEmmanuel Vadot- reg: The base address of the CIU's register bank.
11*c66ec88fSEmmanuel Vadot
12*c66ec88fSEmmanuel Vadot- #interrupt-cells: Must be <2>.  The first cell is source number.
13*c66ec88fSEmmanuel Vadot  The second cell indicates the triggering semantics, and may have a
14*c66ec88fSEmmanuel Vadot  value of either 4 for level semantics, or 1 for edge semantics.
15*c66ec88fSEmmanuel Vadot
16*c66ec88fSEmmanuel VadotExample:
17*c66ec88fSEmmanuel Vadot	interrupt-controller@1010000000000 {
18*c66ec88fSEmmanuel Vadot		compatible = "cavium,octeon-7890-ciu3";
19*c66ec88fSEmmanuel Vadot		interrupt-controller;
20*c66ec88fSEmmanuel Vadot		/* Interrupts are specified by two parts:
21*c66ec88fSEmmanuel Vadot		 * 1) Source number (20 significant bits)
22*c66ec88fSEmmanuel Vadot		 * 2) Trigger type: (4 == level, 1 == edge)
23*c66ec88fSEmmanuel Vadot		 */
24*c66ec88fSEmmanuel Vadot		#address-cells = <0>;
25*c66ec88fSEmmanuel Vadot		#interrupt-cells = <2>;
26*c66ec88fSEmmanuel Vadot		reg = <0x10100 0x00000000 0x0 0xb0000000>;
27*c66ec88fSEmmanuel Vadot	};
28