1 Samsung S3C24XX Interrupt Controllers
3 The S3C24XX SoCs contain a custom set of interrupt controllers providing a
4 varying number of interrupt sources. The set consists of a main- and sub-
5 controller and on newer SoCs even a second main controller.
8 - compatible: Compatible property value should be "samsung,s3c2410-irq"
9 for machines before s3c2416 and "samsung,s3c2416-irq" for s3c2416 and later.
11 - reg: Physical base address of the controller and length of memory mapped
14 - interrupt-controller : Identifies the node as an interrupt controller
16 - #interrupt-cells : Specifies the number of cells needed to encode an
17 interrupt source. The value shall be 4 and interrupt descriptor shall
18 have the following format:
19 <ctrl_num parent_irq ctrl_irq type>
21 ctrl_num contains the controller to use:
22 - 0 ... main controller
23 - 1 ... sub controller
24 - 2 ... second main controller on s3c2416 and s3c2450
25 parent_irq contains the parent bit in the main controller and will be
26 ignored in main controllers
27 ctrl_irq contains the interrupt bit of the controller
28 type contains the trigger type to use
32 interrupt-controller@4a000000 {
33 compatible = "samsung,s3c2410-irq";
34 reg = <0x4a000000 0x100>;
42 compatible = "samsung,s3c2410-uart";
43 reg = <0x50000000 0x4000>;
44 interrupt-parent = <&subintc>;
45 interrupts = <1 28 0 4>, <1 28 1 4>;
49 compatible = "samsung,s3c2410-rtc";
50 reg = <0x57000000 0x100>;
51 interrupt-parent = <&intc>;
52 interrupts = <0 30 0 3>, <0 8 0 3>;