Amazon's Annapurna Labs Fabric Interrupt Controller Required properties: - compatible: should be "amazon,al-fic" - reg: physical base address and size of the registers - interrupt-controller: identifies the node as an interrupt controller - #interrupt-cells: must be 2. First cell defines the index of the interrupt within the controller. Second cell is used to specify the trigger type and must be one of the following: - bits[3:0] trigger type and level flags 1 = low-to-high edge triggered 4 = active high level-sensitive - interrupt-parent: specifies the parent interrupt controller. - interrupts: describes which input line in the interrupt parent, this fic's output is connected to. This field property depends on the parent's binding Example: amazon_fic: interrupt-controller@0xfd8a8500 { compatible = "amazon,al-fic"; interrupt-controller; #interrupt-cells = <2>; reg = <0x0 0xfd8a8500 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <GIC_SPI 0x0 IRQ_TYPE_LEVEL_HIGH>; };