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Re: ixp425 watchdog timer
hmm,
I had some conversation with my h/w chap and this is what we discussed :
seems like some issue was fixed in B0 ..
and I was just thinking that is this possible that when there is a
reset signal to because of watchdog timer reset ..
the flash enable line is also toggled ? ? that should serve the same purpose ?
can anyone conform if this is the case ?? else I also dont see how
this thing can be solved apart from using external watchdog chip which
resets power to all peripherals including flash also ?
My project lead is admant on a demo to proove that this is an issue ..
(not the smartest boss here)
Can some one tell me which mode I shall put the flash into and then
assert this timer to simulate this ?? I am not familiar with cfi
interface protocol and so if u could tell me how to recreate the
situation,I can temporailly screw up the cfi_cmdset0001.c to remain in
a specific mode only and he can have his pie -:)
Cheers,
Alfred
Cheers,
Alfred
On Wed, 16 Mar 2005 22:56:09 -0500, alfred hitch <alfred.hitch@gmail.com> wrote:
> interestingly same doc mentions status as fixed ?? -;)
>
> I have asked my hardware engineer to check ,
> but can u give me more detail on what the issue was, (if it was apart
> from the logical flaw which is there as discussed in list) .. doc
> doesnt mentions on what was the problem.
>
> Cheers,
> Alfred
>
>
> On Wed, 16 Mar 2005 08:13:52 -0500, Mark Salter <msalter@redhat.com> wrote:
> > On Wed, 2005-03-16 at 05:48 -0500, alfred hitch wrote:
> > > 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 -;)
> >
> > Yes, that's one issue with reset.
> >
> > The comments around HAL_PLATFORM_RESET refer to an errata on early
> > (A-step ?) silicon. See:
> >
> > http://developer.intel.com/design/network/swsup/252702.htm
> >
> > Non-core errata #8 warns that watchdog reset functionality results in
> > unpredictable behavior.
> >
> > --Mark
> >
> >
>
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