1 * ARM Vectored Interrupt Controller
3 One or more Vectored Interrupt Controllers (VIC's) can be connected in an ARM
4 system for interrupt routing. For multiple controllers they can either be
5 nested or have the outputs wire-OR'd together.
9 - compatible : should be one of
12 - interrupt-controller : Identifies the node as an interrupt controller
13 - #interrupt-cells : The number of cells to define the interrupts. Must be 1 as
14 the VIC has no configuration options for interrupt sources. The cell is a u32
15 and defines the interrupt number.
16 - reg : The register bank for the VIC.
20 - interrupts : Interrupt source for parent controllers if the VIC is nested.
21 - valid-mask : A one cell big bit mask of valid interrupt sources. Each bit
22 represents single interrupt source, starting from source 0 at LSb and ending
23 at source 31 at MSb. A bit that is set means that the source is wired and
24 clear means otherwise. If unspecified, defaults to all valid.
25 - valid-wakeup-mask : A one cell big bit mask of interrupt sources that can be
26 configured as wake up source for the system. Order of bits is the same as for
27 valid-mask property. A set bit means that this interrupt source can be
28 configured as a wake up source for the system. If unspecied, defaults to all
29 interrupt sources configurable as wake up sources.
33 vic0: interrupt-controller@60000 {
34 compatible = "arm,pl192-vic";
36 #interrupt-cells = <1>;
37 reg = <0x60000 0x1000>;
39 valid-mask = <0xffffff7f>;
40 valid-wakeup-mask = <0x0000ff7f>;