Documentation/devicetree/bindings/interrupt-controller/marvell,orion-intc.txt

   1 Marvell Orion SoC interrupt controllers
   2
   3 * Main interrupt controller
   4
   5 Required properties:
   6 - compatible: shall be "marvell,orion-intc"
   7 - reg: base address(es) of interrupt registers starting with CAUSE register
   8 - interrupt-controller: identifies the node as an interrupt controller
   9 - #interrupt-cells: number of cells to encode an interrupt source, shall be 1
  10
  11 The interrupt sources map to the corresponding bits in the interrupt
  12 registers, i.e.
  13 - 0 maps to bit 0 of first base address,
  14 - 1 maps to bit 1 of first base address,
  15 - 32 maps to bit 0 of second base address, and so on.
  16
  17 Example:
  18         intc: interrupt-controller {
  19                 compatible = "marvell,orion-intc";
  20                 interrupt-controller;
  21                 #interrupt-cells = <1>;
  22                  /* Dove has 64 first level interrupts */
  23                 reg = <0x20200 0x10>, <0x20210 0x10>;
  24         };
  25
  26 * Bridge interrupt controller
  27
  28 Required properties:
  29 - compatible: shall be "marvell,orion-bridge-intc"
  30 - reg: base address of bridge interrupt registers starting with CAUSE register
  31 - interrupts: bridge interrupt of the main interrupt controller
  32 - interrupt-controller: identifies the node as an interrupt controller
  33 - #interrupt-cells: number of cells to encode an interrupt source, shall be 1
  34
  35 Optional properties:
  36 - marvell,#interrupts: number of interrupts provided by bridge interrupt
  37       controller, defaults to 32 if not set
  38
  39 Example:
  40         bridge_intc: interrupt-controller {
  41                 compatible = "marvell,orion-bridge-intc";
  42                 interrupt-controller;
  43                 #interrupt-cells = <1>;
  44                 reg = <0x20110 0x8>;
  45                 interrupts = <0>;
  46                 /* Dove bridge provides 5 interrupts */
  47                 marvell,#interrupts = <5>;
  48         };