The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/interrupt-controller/openrisc,ompic.txt

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    1 Open Multi-Processor Interrupt Controller
    2 
    3 Required properties:
    4 
    5 - compatible : This should be "openrisc,ompic"
    6 - reg : Specifies base physical address and size of the register space. The
    7   size is based on the number of cores the controller has been configured
    8   to handle, this should be set to 8 bytes per cpu core.
    9 - interrupt-controller : Identifies the node as an interrupt controller.
   10 - #interrupt-cells : This should be set to 0 as this will not be an irq
   11   parent.
   12 - interrupts : Specifies the interrupt line to which the ompic is wired.
   13 
   14 Example:
   15 
   16 ompic: interrupt-controller@98000000 {
   17         compatible = "openrisc,ompic";
   18         reg = <0x98000000 16>;
   19         interrupt-controller;
   20         #interrupt-cells = <0>;
   21         interrupts = <1>;
   22 };

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