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- 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)>;
- };
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