bindings/interrupt-controller/samsung%2Cs3c24xx-irq.txt

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
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
27   ctrl_irq contains the interrupt bit of the controller
32 	interrupt-controller@4a000000 {
33 		compatible = "samsung,s3c2410-irq";
35 		interrupt-controller;
36 		#interrupt-cells=<4>;
42 		compatible = "samsung,s3c2410-uart";
44 		interrupt-parent = <&subintc>;
49 		compatible = "samsung,s3c2410-rtc";
51 		interrupt-parent = <&intc>;