1 Broadcom BCM3380-style Level 1 / Level 2 interrupt controller
3 This interrupt controller shows up in various forms on many BCM338x/BCM63xx
4 chipsets. It has the following properties:
6 - outputs a single interrupt signal to its interrupt controller parent
8 - contains one or more enable/status word pairs, which often appear at
9 different offsets in different blocks
11 - no atomic set/clear operations
15 - compatible: should be "brcm,bcm3380-l2-intc"
16 - reg: specifies one or more enable/status pairs, in the following format:
17 <enable_reg 0x4 status_reg 0x4>...
18 - interrupt-controller: identifies the node as an interrupt controller
19 - #interrupt-cells: specifies the number of cells needed to encode an interrupt
21 - interrupt-parent: specifies the phandle to the parent interrupt controller
22 this one is cascaded from
23 - interrupts: specifies the interrupt line in the interrupt-parent controller
24 node, valid values depend on the type of parent interrupt controller
28 - brcm,irq-can-wake: if present, this means the L2 controller can be used as a
29 wakeup source for system suspend/resume.
33 irq0_intc: interrupt-controller@10000020 {
34 compatible = "brcm,bcm3380-l2-intc";
35 reg = <0x10000024 0x4 0x1000002c 0x4>,
36 <0x10000020 0x4 0x10000028 0x4>;
38 #interrupt-cells = <1>;
39 interrupt-parent = <&cpu_intc>;