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Date: Tue, 7 Jul 2020 07:52:58 +0200 (CEST)
From: Giorgio Dal Molin <giorgio.nicole@arcor.de>
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Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org
Subject: Re: reset / watchdog on an imx7d soc
To: Fabio Estevam <festevam@gmail.com>
Cc: Barebox List <barebox@lists.infradead.org>

Hi,

> On July 2, 2020 at 6:24 PM Fabio Estevam <festevam@gmail.com> wrote:
> 
> 
> Hi Giorgio,
> 
> On Thu, Jul 2, 2020 at 12:28 PM Giorgio Dal Molin
> <giorgio.nicole@arcor.de> wrote:
> 
> > What I've found is that if I put the endless loop right at the end of
> > imx21_soc_reset(), after the imxwd_write's, then the reboot process becomes
> > reliable.
> 
> Just curious: are you able to reboot reliably if you issue a "reboot"
> command from the Linux prompt?
> 

yesterday I ran a long reboot loop test:

 system start => kernel / userland boot => reboot

and at least captured a hang.

So, from what I can see, a kernel reboot hang is just as likely as a bootloader's
one.

giorgio

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