============================== C-SKY APB Interrupt Controller ============================== C-SKY APB Interrupt Controller is a simple soc interrupt controller on the apb bus and we only use it as root irq controller. - csky,apb-intc is used in a lot of csky fpgas and socs, it support 64 irq nums. - csky,dual-apb-intc consists of 2 apb-intc and 128 irq nums supported. - csky,gx6605s-intc is gx6605s soc internal irq interrupt controller, 64 irq nums. ============================= intc node bindings definition ============================= Description: Describes APB interrupt controller PROPERTIES - compatible Usage: required Value type: Definition: must be "csky,apb-intc" "csky,dual-apb-intc" "csky,gx6605s-intc" - #interrupt-cells Usage: required Value type: Definition: must be <1> - reg Usage: required Value type: Definition: in soc from cpu view - interrupt-controller: Usage: required - csky,support-pulse-signal: Usage: select Description: to support pulse signal flag Examples: --------- intc: interrupt-controller@500000 { compatible = "csky,apb-intc"; #interrupt-cells = <1>; reg = <0x00500000 0x400>; interrupt-controller; }; intc: interrupt-controller@500000 { compatible = "csky,dual-apb-intc"; #interrupt-cells = <1>; reg = <0x00500000 0x400>; interrupt-controller; }; intc: interrupt-controller@500000 { compatible = "csky,gx6605s-intc"; #interrupt-cells = <1>; reg = <0x00500000 0x400>; interrupt-controller; };