| Jamie Iles | f9b28cc | 2011-09-27 11:00:46 +0100 | [diff] [blame] | 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 | |
| 22 | Example: |
| 23 | |
| 24 | vic0: interrupt-controller@60000 { |
| 25 | compatible = "arm,pl192-vic"; |
| 26 | interrupt-controller; |
| 27 | #interrupt-cells = <1>; |
| 28 | reg = <0x60000 0x1000>; |
| 29 | }; |