| STMicroelectronics STi System Configuration Controlled IRQs |
| ----------------------------------------------------------- |
| |
| On STi based systems; External, CTI (Core Sight), PMU (Performance Management), |
| and PL310 L2 Cache IRQs are controlled using System Configuration registers. |
| This driver is used to unmask them prior to use. |
| |
| Required properties: |
| - compatible : Should be set to one of: |
| "st,stih415-irq-syscfg" |
| "st,stih416-irq-syscfg" |
| "st,stih407-irq-syscfg" |
| "st,stid127-irq-syscfg" |
| - st,syscfg : Phandle to Cortex-A9 IRQ system config registers |
| - st,irq-device : Array of IRQs to enable - should be 2 in length |
| - st,fiq-device : Array of FIQs to enable - should be 2 in length |
| |
| Optional properties: |
| - st,invert-ext : External IRQs can be inverted at will. This property inverts |
| these IRQs using bitwise logic. A number of defines have been |
| provided for convenience: |
| ST_IRQ_SYSCFG_EXT_1_INV |
| ST_IRQ_SYSCFG_EXT_2_INV |
| ST_IRQ_SYSCFG_EXT_3_INV |
| Example: |
| |
| irq-syscfg { |
| compatible = "st,stih416-irq-syscfg"; |
| st,syscfg = <&syscfg_cpu>; |
| st,irq-device = <ST_IRQ_SYSCFG_PMU_0>, |
| <ST_IRQ_SYSCFG_PMU_1>; |
| st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>, |
| <ST_IRQ_SYSCFG_DISABLED>; |
| st,invert-ext = <(ST_IRQ_SYSCFG_EXT_1_INV | ST_IRQ_SYSCFG_EXT_3_INV)>; |
| }; |
