==============================
|
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: <string>
|
Definition: must be "csky,apb-intc"
|
"csky,dual-apb-intc"
|
"csky,gx6605s-intc"
|
- #interrupt-cells
|
Usage: required
|
Value type: <u32>
|
Definition: must be <1>
|
- reg
|
Usage: required
|
Value type: <u32 u32>
|
Definition: <phyaddr size> 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;
|
};
|
