| Christian Ruppert | b06eb01 | 2013-06-25 18:29:57 +0200 | [diff] [blame] | 1 | TB10x Top Level Interrupt Controller |
| 2 | ==================================== |
| 3 | |
| 4 | The Abilis TB10x SOC contains a custom interrupt controller. It performs |
| 5 | one-to-one mapping of external interrupt sources to CPU interrupts and |
| 6 | provides support for reconfigurable trigger modes. |
| 7 | |
| 8 | Required properties |
| 9 | ------------------- |
| 10 | |
| 11 | - compatible: Should be "abilis,tb10x-ictl" |
| 12 | - reg: specifies physical base address and size of register range. |
| 13 | - interrupt-congroller: Identifies the node as an interrupt controller. |
| 14 | - #interrupt cells: Specifies the number of cells used to encode an interrupt |
| 15 | source connected to this controller. The value shall be 2. |
| 16 | - interrupt-parent: Specifies the parent interrupt controller. |
| 17 | - interrupts: Specifies the list of interrupt lines which are handled by |
| 18 | the interrupt controller in the parent controller's notation. Interrupts |
| 19 | are mapped one-to-one to parent interrupts. |
| 20 | |
| 21 | Example |
| 22 | ------- |
| 23 | |
| 24 | intc: interrupt-controller { /* Parent interrupt controller */ |
| 25 | interrupt-controller; |
| 26 | #interrupt-cells = <1>; /* For example below */ |
| 27 | /* ... */ |
| 28 | }; |
| 29 | |
| 30 | tb10x_ictl: pic@2000 { /* TB10x interrupt controller */ |
| 31 | compatible = "abilis,tb10x-ictl"; |
| 32 | reg = <0x2000 0x20>; |
| 33 | interrupt-controller; |
| 34 | #interrupt-cells = <2>; |
| 35 | interrupt-parent = <&intc>; |
| 36 | interrupts = <5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
| 37 | 20 21 22 23 24 25 26 27 28 29 30 31>; |
| 38 | }; |