arch_timer.txt 673 B

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  1. * ARM architected timer
  2. ARM Cortex-A7 and Cortex-A15 have a per-core architected timer, which
  3. provides per-cpu timers.
  4. The timer is attached to a GIC to deliver its per-processor interrupts.
  5. ** Timer node properties:
  6. - compatible : Should at least contain "arm,armv7-timer".
  7. - interrupts : Interrupt list for secure, non-secure, virtual and
  8. hypervisor timers, in that order.
  9. - clock-frequency : The frequency of the main counter, in Hz. Optional.
  10. Example:
  11. timer {
  12. compatible = "arm,cortex-a15-timer",
  13. "arm,armv7-timer";
  14. interrupts = <1 13 0xf08>,
  15. <1 14 0xf08>,
  16. <1 11 0xf08>,
  17. <1 10 0xf08>;
  18. clock-frequency = <100000000>;
  19. };