samsung,s3c24xx-irq.txt

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    1 Samsung S3C24XX Interrupt Controllers
    2 
    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.
    6 
    7 Required properties:
    8 - compatible: Compatible property value should be "samsung,s3c2410-irq"
    9   for machines before s3c2416 and "samsung,s3c2416-irq" for s3c2416 and later.
   10 
   11 - reg: Physical base address of the controller and length of memory mapped
   12   region.
   13 
   14 - interrupt-controller : Identifies the node as an interrupt controller
   15 
   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>
   20 
   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
   29 
   30 Example:
   31 
   32         interrupt-controller@4a000000 {
   33                 compatible = "samsung,s3c2410-irq";
   34                 reg = <0x4a000000 0x100>;
   35                 interrupt-controller;
   36                 #interrupt-cells=<4>;
   37         };
   38 
   39         [...]
   40 
   41         serial@50000000 {
   42                 compatible = "samsung,s3c2410-uart";
   43                 reg = <0x50000000 0x4000>;
   44                 interrupt-parent = <&subintc>;
   45                 interrupts = <1 28 0 4>, <1 28 1 4>;
   46         };
   47 
   48         rtc@57000000 {
   49                 compatible = "samsung,s3c2410-rtc";
   50                 reg = <0x57000000 0x100>;
   51                 interrupt-parent = <&intc>;
   52                 interrupts = <0 30 0 3>, <0 8 0 3>;
   53         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/interrupt-controller/samsung,s3c24xx-irq.txt

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sys/contrib/device-tree/Bindings/interrupt-controller/samsung,s3c24xx-irq.txt