Thanks for the input Randy. I thought of this too
early on and verified that the Software Watchdog timer
was disabled. And as I pointed it, it first happened
on the very first instruction even when I was single
stepping on the debugger.

--- Randy Vinson <rvinson@mvista.com> wrote:

annamaya wrote:

quoted

I debugged this problem a little more and realized
that the reset was happenning right after the
execution of the first kernel instruction at
0x0000000c. The instruction at this location was
"mfpvr r28". I traced this back to a snippet of

code

quoted

that was dealing with pipeline depth issues on the
MPC8260. Once I commented this code out, more
instructions were issued but the reboot happens
elsewhere. I am not able to pin-point the location

of

quoted

the debug since my BDI fails to catch the reset

when

quoted

it happens. Can someone point me to the cause of

this

quoted

situation? Thanks in advance.

I'm not familiar with the 8260, but this sounds very
much like a 
hardware watchdog is expiring somewhere. Check to
see if the hardware 
has an on-board watchdog (most likely in the timer
section of the 8260) 
and see if the firmware has armed it. If so, you'll
need to add a 
snippet of code to disable the watchdog to allow
boot-up to complete.

		Randy Vinson

		
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