Documentation/devicetree/bindings/arm/vic.txt

   1 * ARM Vectored Interrupt Controller
   2
   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.
   6
   7 Required properties:
   8
   9 - compatible : should be one of
  10         "arm,pl190-vic"
  11         "arm,pl192-vic"
  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.
  17
  18 Optional properties:
  19
  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.
  30
  31 Example:
  32
  33         vic0: interrupt-controller@60000 {
  34                 compatible = "arm,pl192-vic";
  35                 interrupt-controller;
  36                 #interrupt-cells = <1>;
  37                 reg = <0x60000 0x1000>;
  38
  39                 valid-mask = <0xffffff7f>;
  40                 valid-wakeup-mask = <0x0000ff7f>;
  41         };