[U-Boot-Users] Enabling watchdog for MPC850
Wolfgang Denk
wd at denx.de
Wed Mar 3 10:20:21 CET 2004
In message <OF4F301F74.750FBEB3-ON42256E4C.0025CE19-08256E4C.00260CD9 at mksinternal.com> you wrote:
>
> I am having a problem enabling the watchdog in u-boot. It causing the
> Linux load to crash.
Most probably Linux is not crashing but just reset by the watchdog.
> Do I have to enable watchdog support in u-boot for the mpc_8xx driver to
> run?
You always have to configure both sides to match, i. e. if you enable
the watchdog in U-Boot you must do so in Linux, and if you don;t
enable it in U-Boot you must not enable it in Linux (althought in
that case you will not crash the system).
> If so what can I about the Linux crashes?
Please define "crash". Does the board simply reset (like after a
watchdog timeout), or is there any error message, or what?
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
"It is easier to port a shell than a shell script." - Larry Wall
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