Messages in this thread | | | Date | Sun, 19 Aug 2007 03:34:45 +0200 | From | "Xu Yang" <> | Subject | TIMER0 interrupt's problem in kernel 2.6.21 ( realview-smp_defconfig) |
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I am running kernel 2.6.21 on my realview_eb_mpcore system.
at the beginning I found the program is stuck at calibrating loop................, this is because that the timer0 didn't give out any interrupt.
after enable the timer0's interrupt, I found that even when there is no timer interrupt the interrupt routine (realview_timer_interrupt() )is still reached.
I added a timer interrupt disable instruction in the routine realview_timer_interrupt() , which makes sure that after the first interrupt the interrupt would be disabled. even in this situation , I can still see that the interrupt routine is accessed by the cpu.
I guess this maybe caused by the problem of the gic_ack() or some other functions?
does anyone ever meet such a situation?
anyone knows how to handle this?
any idea is appreciated.
regards,
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