[ECOS] Re: ixp425 watchdog timer

alfred hitch alfred.hitch@gmail.com
Wed Mar 16 13:49:00 GMT 2005


Hi,

I did some more searching on the net and I got one thread where this
was discussed ..
http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2004-December/026049.html

think I understand what the issue, good we got to know of it before we
made design based on this  -;)

anyways, my other questions are still there . 
if I understand correctly, 
reset command on ixp425 is basically then start execution from 0x0 again ?

and sleep etc are spin locks, checking timer register in a while loop
? pressing control C makes a interrupt and u catch it to stop flow,
rather come out of flow ?

Cheers,
Alfred


On Wed, 16 Mar 2005 04:49:03 -0500, alfred hitch <alfred.hitch@gmail.com> wrote:
> Hi Mark / All,
> 
> I am trying to figure out how the reset command works on redboot,
> does it uses the watchdog timer thing ?
> 
> actually while just grep'ing thru the source code's I saw that in the
> file hal_plf_inits.h the HAL_PLATFORM_RESET function is commented out
> cribbing of some errata,
> I couldnt find any such errata's, could u please tell me whats it about ..
> 
> How does any sleep,etc boils down on ixp425 plattform where there is
> no RTC ? do we continously spin lock and keeping on reading timer 0
> register and comparing ??
> 
> how does script timer thing works ? as in it says in main.c that
> starting script in 4 seconds, how does it measures that ?
> 
> may be a little mundane questions, but couldnt figure these out -:)
> 
> Cheers,
> Alfred
>

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