FW: Barebox on Karo TX25

[John Parker]

Hi Baruch

Thank you for this. I've now found this info in the reference manual - not under the watchdog section but elsewhere - under the boot modes.

So now I can concentrate on why the zbarebox.bin wont run!

Regards

John




-----Original Message-----
From: Baruch Siach [mailto:baruch at tkos.co.il] 
Sent: 28 November 2013 16:22
To: John Parker
Cc: Sascha Hauer; barebox at lists.infradead.org
Subject: Re: FW: Barebox on Karo TX25

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.

baruch

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