Quick question?

[jchludzinski]

On 2020-09-25 12:17, Rayagonda Kokatanur wrote:
> On Fri, Sep 25, 2020 at 9:29 PM jchludzinski
> <jchludzinski at vivaldi.net> wrote:
> 
>> On 2020-09-25 07:13, Rayagonda Kokatanur wrote:
>>> On Fri, Sep 25, 2020, 4:32 PM jchludzinski
>> <jchludzinski at 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

Yes I did. It continues to reset.

---John