Re: m8xx hang in reboot (fwd)

The saga continues...  ;-)

I added code to explicitly clear the CHSTPE bit in the DER register.
Didn't make any difference.

I'm stumped.

-M

On Wed, 25 Aug 2004, Mark S. Mathews wrote:

A little more info.  The hang occurs on this line:

	dummy = ((immap_t *)IMAP_ADDR)->im_clkrst.res[0];

Which is _supposed_ to generate a machine check I believe.

So I guess my next step is to see if somehow the DER got set and we're
popping into debug mode instead of resetting...

-M

--

Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
721-D North Drive          e-mail: mark@linux-wlan.com
Melbourne, FL 32934        Phone:  321.259.0737
USA                        Fax:    321.259.0286

---------- Forwarded message ----------
Date: Wed, 25 Aug 2004 16:22:00 -0400 (EDT)
From: Mark S. Mathews <redacted>
To: linuxppc-embedded <redacted>
Subject: m8xx hang in reboot

Hey Folks,

I've got an mpc850 based setup running 2.4.27 that, under certain
circumstances, hangs in the the m8xx_restart() function (instead of
rebooting)
when I issue the usermode reboot cmd.

I've traced all through the path and confirmed that yes, it is hanging in
this
function.  ;-)

I'm still looking over the databook and what this code does.  Just figured
I'd
ask around and see if anyone else has seen this behavior.

Thanks,
-Mark

--

Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
721-D North Drive          e-mail: mark@linux-wlan.com
Melbourne, FL 32934        Phone:  321.259.0737
USA                        Fax:    321.259.0286

--

Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
721-D North Drive          e-mail: mark@linux-wlan.com
Melbourne, FL 32934        Phone:  321.259.0737
USA                        Fax:    321.259.0286

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