Kernel-3.10.0-957.el7_arch_timer

  • ARM architected timer

ARM cores may have a per-core architected timer, which provides per-cpu timers.

The timer is attached to a GIC to deliver its per-processor interrupts.

** Timer node properties:

  • compatible : Should at least contain one of
    “arm,armv7-timer”
    “arm,armv8-timer”

  • interrupts : Interrupt list for secure, non-secure, virtual and
    hypervisor timers, in that order.

  • clock-frequency : The frequency of the main counter, in Hz. Optional.

Example:

timer {
    compatible = "arm,cortex-a15-timer",
             "arm,armv7-timer";
    interrupts = <1 13 0xf08>,
             <1 14 0xf08>,
             <1 11 0xf08>,
             <1 10 0xf08>;
    clock-frequency = <100000000>;
};