On Fri, Oct 12, 2007 at 03:49:02PM -0500, Rune Torgersen wrote: > Is there an easy way to use something other than the decrementer for the > timer interrupt? > > Reason i'm asking is tha t on our board, the decrementer cannot be > divided to 1khz evenly, so we have rounding errors for time, but we do > have a 1KHz timer interrupt from an FPGA that is source of a T1 clock. > > Right now I let the decrementer interrupt do nothing, and made my own > timer interrupt handler that calls the stuff the timer_interrupt usually > does. > > This works, but there are some instability (ie unexplained hangs) that > showed up when I did this.
I just responded to you on -embedded with this: "Check out the clocksource stuff. It let's you set up numerous clock sources and set the rating of each one. You can start looking in arch/powerpc/kernel/time.c for example code." Mark _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
