Conn, Thanks a lot for your reply.
> I have played with some of the power saving modes on our custom > 850 board and have had no problems. I have toyed with the Doze High and > Doze Low modes in the idle loop. Attached is a hacked up idle loop for > kernel 2.4.19 that works for me. I recompiled and booted... it crashed on me! :( Maybe some differences with the platform... I'll look into that tomorrow. > > Do you have the SCCR[PRQEN] bit set? Have tried with and without sccr[prqen] bit set. > Is there any particular reason you want to wake up the processor with > the PIT instead of just letting any old interrupt wake it up? Well i'd just like to be able to say : "im going to sleep. please wake me in 5 seconds". If theres an easier way, please enlighten me! :) > You should be able to drop my idle.c in place of the old one. To disable > my hack just comment out the #define MPC8XX_POWERSAVE . My comments > shouldn't be to hard to understand. Also I have the SCCR[PRQEN] and the > SCCR[CRQEN] bits set. Yep, i'll dig into it tomorrow. I'm kind of allergic to inline assembly, but it's allright... ill have some pills! ;) Once again, thanks a lot for your help. Best regards, Pat Mahoney ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
