1*4882a593SmuzhiyunTI OMAP4 Wake-up Generator 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunAll TI OMAP4/5 (and their derivatives) an interrupt controller that 4*4882a593Smuzhiyunroutes interrupts to the GIC, and also serves as a wakeup source. It 5*4882a593Smuzhiyunis also referred to as "WUGEN-MPU", hence the name of the binding. 6*4882a593Smuzhiyun 7*4882a593SmuzhiyunRequired properties: 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun- compatible : should contain at least "ti,omap4-wugen-mpu" or 10*4882a593Smuzhiyun "ti,omap5-wugen-mpu" 11*4882a593Smuzhiyun- reg : Specifies base physical address and size of the registers. 12*4882a593Smuzhiyun- interrupt-controller : Identifies the node as an interrupt controller. 13*4882a593Smuzhiyun- #interrupt-cells : Specifies the number of cells needed to encode an 14*4882a593Smuzhiyun interrupt source. The value must be 3. 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunNotes: 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun- Because this HW ultimately routes interrupts to the GIC, the 19*4882a593Smuzhiyun interrupt specifier must be that of the GIC. 20*4882a593Smuzhiyun- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs 21*4882a593Smuzhiyun are explicitly forbidden. 22*4882a593Smuzhiyun 23*4882a593SmuzhiyunExample: 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun wakeupgen: interrupt-controller@48281000 { 26*4882a593Smuzhiyun compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu"; 27*4882a593Smuzhiyun interrupt-controller; 28*4882a593Smuzhiyun #interrupt-cells = <3>; 29*4882a593Smuzhiyun reg = <0x48281000 0x1000>; 30*4882a593Smuzhiyun interrupt-parent = <&gic>; 31*4882a593Smuzhiyun }; 32