[U-Boot-Users] cold boot failing on PPC 750
wd at denx.de
Fri Mar 25 10:06:12 CET 2005
In message <123e1978050324142264ec4e3 at mail.gmail.com> you wrote:
> We ported u-boot on a custom designed hardware with power pc 750 and a
> cpc700 bridge. We encounter a strange problem ;The code runs fine
> throwing the boot messages of u-boot only when run for the first time
> after flashing thru a BDM debugger under the BDM debugger control.
To be precise... this is not possible. The 750 has no BDM debug port.
AFAIK BDM is being used only on the MPC5xx/8xx families.
Your problem is most probably casued by some init sequence which is
present in your debugger init script, but missing in Your U-Boot
> when we try to HRESET (cold start) the board ,we do not see it
> throwing any messages on the serial console.Henceforth when we try to
> run the same code under BDM control it doesn't run correctly and hangs
> in a loop. Kindly advise.
"in a loop" ... Which loop? Where exactly? Perhaps you might be so
kind as to elucidate.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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