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From: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
To: u-boot@lists.denx.de
Subject: Quick question?
Date: Fri, 25 Sep 2020 21:47:19 +0530	[thread overview]
Message-ID: <CAHO=5PFRuTwtQdOKMPRmmLKWo7vEUHKLMUu9ebdHdYF+Yomcpg@mail.gmail.com> (raw)
In-Reply-To: <63b3f47ef8c46f07d56d33ee57c78347@vivaldi.net>

On Fri, Sep 25, 2020 at 9:29 PM jchludzinski <jchludzinski@vivaldi.net>
wrote:

> On 2020-09-25 07:13, Rayagonda Kokatanur wrote:
> > On Fri, Sep 25, 2020, 4:32 PM jchludzinski <jchludzinski@vivaldi.net>
> > wrote:
> >
> >> On 2020-09-24 17:36, jchludzinski wrote:
> >>> I'm trying to bring up an RTOS (vxworks) using u-boot and have had
> >>> some "partial" success:
> >>>
> >>> If I use the 2014 u-boot that comes with Quartus 18.1 (a tarball
> >> in
> >>> the download), vxworks successfully boots.
> >>>
> >>> If I clone the github repo
> >>> (https://github.com/altera-opensource/u-boot-socfpga.git)  and
> >> build
> >>> u-boot from that (2020), vxworks fails to boot. What appears to be
> >>> happening is an (fpga?) watchdog timer goes off and a HW reset is
> >>> called. Then of course, u-boot reboots.
> >>>
> >>> Any thoughts? Why would this occur with the newer u-boot and not
> >> with
> >>> the older u-boot?
> >>>
> >>> ---John
> >>
> >> I don't see the "Watchdog enabled" message in the output from the
> >> older
> >> u-boot.
> >
> > watchdog service starts by default in latest uboot and it's set to
> > 60s.
> >
> > If you wait for more than 60s at uboot prompt or you os loading takes
> > long time then watchdog resets.
> >
> > Define CONFIG_WATCHDOG , this will takes care of resting watchdog.
> >
> > Thanks,
> > Rayagonda
> >
> >>
> Thanks for the suggestion but this reset occurs while vxworks is in the
> process of booting up.
>
> Could u-boot set a HW watchdog timer before handing control over to
> vxworks and, while vxworks is booting, the timer goes off and calls
> reset?
>

If wdt is not initialized by vxworks then I think uboot wdt will be running
and it will reset.
Did you try  defining  CONFIG_WATCHDOG  in uboot ?


Best regards,
Rayagonda
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  reply	other threads:[~2020-09-25 16:17 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-24 21:36 Quick question? jchludzinski
2020-09-24 21:39 ` jchludzinski
2020-09-25 11:13   ` Rayagonda Kokatanur
2020-09-25 15:59     ` jchludzinski
2020-09-25 16:17       ` Rayagonda Kokatanur [this message]
2020-09-25 16:48         ` jchludzinski
  -- strict thread matches above, loose matches on Subject: below --
2013-12-09 15:59 Stojsavljevic, Zoran
2013-12-09 16:00 ` Vladimir 'φ-coder/phcoder' Serbinenko
2013-12-09 16:10 ` Andrey Borzenkov
2013-12-10 12:40   ` Stojsavljevic, Zoran
2013-12-11 13:17     ` Colin Watson
2006-05-22 15:46 4 disks in raid 5: 33MB/s read performance? Dexter Filmore
2006-05-22 23:02 ` Neil Brown
2006-05-24  8:21   ` Max. md array size under 32-bit i368 Gordon Henderson
2006-06-06  9:36     ` Quick Question Gordon Henderson

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