FW: Barebox on Karo TX25

Baruch Siach baruch at tkos.co.il
Thu Nov 28 11:22:19 EST 2013

Hi John,

On Thu, Nov 28, 2013 at 04:13:34PM +0000, John Parker wrote:
> I still have a problem with barebox freezing. 
> I've tried various things as you have suggested, but have not got any further.
> Issuing wd 100, followed by wd repeated every few seconds seems to keep the 
> system alive so it looks like the watchdog is to blame.
> According to the mx25 reference manual the watchdog is disabled until it is 
> enabled by setting the WDE bit.
> I can't find anything (yet) in the startup which enables the watchdog by 
> default?
> Does the flash header you sent me include anything which enables the 
> watchdog?

When the i.MX25 boots using the serial protocol boot mode (either UART or USB) 
the watchdog gets enabled automatically. You can't disable it.


     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -

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