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High Resolution Timers with LS1021a not reachable

Question asked by Jan Brand on Dec 18, 2015


I want to check realtime-time-functionality with the LS1021a using the PREEMPT-patch:


3.12.19-rt30 #1 SMP PREEMPT RT Thu Dec 3 12:22:32 CET 2015 armv7l GNU/Linux


The tool cyclictest give's a warning at startup: "WARN: High resolution timers not available" and the timings are bad. In the kernel-config the high resolution timers are selected. What could be the problem?


Best regards