1Amazon's Annapurna Labs Fabric Interrupt Controller 2 3Required properties: 4 5- compatible: should be "amazon,al-fic" 6- reg: physical base address and size of the registers 7- interrupt-controller: identifies the node as an interrupt controller 8- #interrupt-cells: must be 2. 9 First cell defines the index of the interrupt within the controller. 10 Second cell is used to specify the trigger type and must be one of the 11 following: 12 - bits[3:0] trigger type and level flags 13 1 = low-to-high edge triggered 14 4 = active high level-sensitive 15- interrupt-parent: specifies the parent interrupt controller. 16- interrupts: describes which input line in the interrupt parent, this 17 fic's output is connected to. This field property depends on the parent's 18 binding 19 20Example: 21 22amazon_fic: interrupt-controller@0xfd8a8500 { 23 compatible = "amazon,al-fic"; 24 interrupt-controller; 25 #interrupt-cells = <2>; 26 reg = <0x0 0xfd8a8500 0x0 0x1000>; 27 interrupt-parent = <&gic>; 28 interrupts = <GIC_SPI 0x0 IRQ_TYPE_LEVEL_HIGH>; 29}; 30