Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git...
[firefly-linux-kernel-4.4.55.git] / Documentation / devicetree / bindings / arm / arch_timer.txt
1 * ARM architected timer
2
3 ARM cores may have a per-core architected timer, which provides per-cpu timers.
4
5 The timer is attached to a GIC to deliver its per-processor interrupts.
6
7 ** Timer node properties:
8
9 - compatible : Should at least contain one of
10         "arm,armv7-timer"
11         "arm,armv8-timer"
12
13 - interrupts : Interrupt list for secure, non-secure, virtual and
14   hypervisor timers, in that order.
15
16 - clock-frequency : The frequency of the main counter, in Hz. Optional.
17
18 Example:
19
20         timer {
21                 compatible = "arm,cortex-a15-timer",
22                              "arm,armv7-timer";
23                 interrupts = <1 13 0xf08>,
24                              <1 14 0xf08>,
25                              <1 11 0xf08>,
26                              <1 10 0xf08>;
27                 clock-frequency = <100000000>;
28         };