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1TI OMAP4 Wake-up Generator2 3All TI OMAP4/5 (and their derivatives) an interrupt controller that4routes interrupts to the GIC, and also serves as a wakeup source. It5is also referred to as "WUGEN-MPU", hence the name of the binding.6 7Required properties:8 9- compatible : should contain at least "ti,omap4-wugen-mpu" or10 "ti,omap5-wugen-mpu"11- reg : Specifies base physical address and size of the registers.12- interrupt-controller : Identifies the node as an interrupt controller.13- #interrupt-cells : Specifies the number of cells needed to encode an14 interrupt source. The value must be 3.15 16Notes:17 18- Because this HW ultimately routes interrupts to the GIC, the19 interrupt specifier must be that of the GIC.20- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs21 are explicitly forbidden.22 23Example:24 25 wakeupgen: interrupt-controller@48281000 {26 compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";27 interrupt-controller;28 #interrupt-cells = <3>;29 reg = <0x48281000 0x1000>;30 interrupt-parent = <&gic>;31 };32