1STMicroelectronics STi System Configuration Controlled IRQs 2----------------------------------------------------------- 3 4On STi based systems; External, CTI (Core Sight), PMU (Performance Management), 5and PL310 L2 Cache IRQs are controlled using System Configuration registers. 6This driver is used to unmask them prior to use. 7 8Required properties: 9- compatible : Should be set to one of: 10 "st,stih415-irq-syscfg" 11 "st,stih416-irq-syscfg" 12 "st,stih407-irq-syscfg" 13 "st,stid127-irq-syscfg" 14- st,syscfg : Phandle to Cortex-A9 IRQ system config registers 15- st,irq-device : Array of IRQs to enable - should be 2 in length 16- st,fiq-device : Array of FIQs to enable - should be 2 in length 17 18Optional properties: 19- st,invert-ext : External IRQs can be inverted at will. This property inverts 20 these IRQs using bitwise logic. A number of defines have been 21 provided for convenience: 22 ST_IRQ_SYSCFG_EXT_1_INV 23 ST_IRQ_SYSCFG_EXT_2_INV 24 ST_IRQ_SYSCFG_EXT_3_INV 25Example: 26 27irq-syscfg { 28 compatible = "st,stih416-irq-syscfg"; 29 st,syscfg = <&syscfg_cpu>; 30 st,irq-device = <ST_IRQ_SYSCFG_PMU_0>, 31 <ST_IRQ_SYSCFG_PMU_1>; 32 st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>, 33 <ST_IRQ_SYSCFG_DISABLED>; 34 st,invert-ext = <(ST_IRQ_SYSCFG_EXT_1_INV | ST_IRQ_SYSCFG_EXT_3_INV)>; 35}; 36