1 ==============================
2 C-SKY APB Interrupt Controller
3 ==============================
4
5 C-SKY APB Interrupt Controller is a simple soc interrupt controller
6 on the apb bus and we only use it as root irq controller.
7
8 - csky,apb-intc is used in a lot of csky fpgas and socs, it support 64 irq nums.
9 - csky,dual-apb-intc consists of 2 apb-intc and 128 irq nums supported.
10 - csky,gx6605s-intc is gx6605s soc internal irq interrupt controller, 64 irq nums.
11
12 =============================
13 intc node bindings definition
14 =============================
15
16 Description: Describes APB interrupt controller
17
18 PROPERTIES
19
20 - compatible
21 Usage: required
22 Value type: <string>
23 Definition: must be "csky,apb-intc"
24 "csky,dual-apb-intc"
25 "csky,gx6605s-intc"
26 - #interrupt-cells
27 Usage: required
28 Value type: <u32>
29 Definition: must be <1>
30 - reg
31 Usage: required
32 Value type: <u32 u32>
33 Definition: <phyaddr size> in soc from cpu view
34 - interrupt-controller:
35 Usage: required
36 - csky,support-pulse-signal:
37 Usage: select
38 Description: to support pulse signal flag
39
40 Examples:
41 ---------
42
43 intc: interrupt-controller@500000 {
44 compatible = "csky,apb-intc";
45 #interrupt-cells = <1>;
46 reg = <0x00500000 0x400>;
47 interrupt-controller;
48 };
49
50 intc: interrupt-controller@500000 {
51 compatible = "csky,dual-apb-intc";
52 #interrupt-cells = <1>;
53 reg = <0x00500000 0x400>;
54 interrupt-controller;
55 };
56
57 intc: interrupt-controller@500000 {
58 compatible = "csky,gx6605s-intc";
59 #interrupt-cells = <1>;
60 reg = <0x00500000 0x400>;
61 interrupt-controller;
62 };
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