blob: e6bbcae4d07fb21b595259e4289f154d45b7913f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
===========================================
C-SKY Multi-processors Interrupt Controller
===========================================
C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
SMP soc, and it also could be used in non-SMP system.
Interrupt number definition:
0-15 : software irq, and we use 15 as our IPI_IRQ.
16-31 : private irq, and we use 16 as the co-processor timer.
31-1024: common irq for soc ip.
Interrupt trigger mode: (Defined in dt-bindings/interrupt-controller/irq.h)
IRQ_TYPE_LEVEL_HIGH (default)
IRQ_TYPE_LEVEL_LOW
IRQ_TYPE_EDGE_RISING
IRQ_TYPE_EDGE_FALLING
=============================
intc node bindings definition
=============================
Description: Describes SMP interrupt controller
PROPERTIES
- compatible
Usage: required
Value type: <string>
Definition: must be "csky,mpintc"
- #interrupt-cells
Usage: required
Value type: <u32>
Definition: <2>
- interrupt-controller:
Usage: required
Examples: ("interrupts = <irq_num IRQ_TYPE_XXX>")
---------
#include <dt-bindings/interrupt-controller/irq.h>
intc: interrupt-controller {
compatible = "csky,mpintc";
#interrupt-cells = <2>;
interrupt-controller;
};
device: device-example {
...
interrupts = <34 IRQ_TYPE_EDGE_RISING>;
interrupt-parent = <&intc>;
};
|
