xref: /freebsd-src/sys/contrib/device-tree/Bindings/interrupt-controller/snps,arc700-intc.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel Vadot* ARC700 incore Interrupt Controller
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel Vadot  The core interrupt controller provides 32 prioritised interrupts (2 levels)
4*c66ec88fSEmmanuel Vadot  to ARC700 core.
5*c66ec88fSEmmanuel Vadot
6*c66ec88fSEmmanuel VadotProperties:
7*c66ec88fSEmmanuel Vadot
8*c66ec88fSEmmanuel Vadot- compatible: "snps,arc700-intc"
9*c66ec88fSEmmanuel Vadot- interrupt-controller: This is an interrupt controller.
10*c66ec88fSEmmanuel Vadot- #interrupt-cells: Must be <1>.
11*c66ec88fSEmmanuel Vadot
12*c66ec88fSEmmanuel Vadot  Single Cell "interrupts" property of a device specifies the IRQ number
13*c66ec88fSEmmanuel Vadot  between 0 to 31
14*c66ec88fSEmmanuel Vadot
15*c66ec88fSEmmanuel Vadot  intc accessed via the special ARC AUX register interface, hence "reg" property
16*c66ec88fSEmmanuel Vadot  is not specified.
17*c66ec88fSEmmanuel Vadot
18*c66ec88fSEmmanuel VadotExample:
19*c66ec88fSEmmanuel Vadot
20*c66ec88fSEmmanuel Vadot	intc: interrupt-controller {
21*c66ec88fSEmmanuel Vadot		compatible = "snps,arc700-intc";
22*c66ec88fSEmmanuel Vadot		interrupt-controller;
23*c66ec88fSEmmanuel Vadot		#interrupt-cells = <1>;
24*c66ec88fSEmmanuel Vadot	};
25