[U-Boot] watchdog not resetting beaglebone after timeout period

[U-Boot] watchdog not resetting beaglebone after timeout period

[Belisko Marek]

Hi,

I'm using latest u-boot master
(9b416a9f4ca7cf5ac4d5f7143d67edde7f7d7326) running on beaglebone
(white). This board has watchdog enabled by default for 60 secs
timeout but in my case it's not resetting board after that amount of
time. I did check watchdog registers:

U-Boot# md.l 0x44e35000 30
44e35000: 502a0501 00000000 00000000 00000000    ..*P............
44e35010: 00000010 00000001 00000000 00000000    ................
44e35020: 00000000 00000020 ffe2005e ffe20000    .... ...^.......
44e35030: ffffedcb 00000000 00000000 00000000    ................
44e35040: 00000000 00000000 00004444 00000000    ........DD......
44e35050: 00000000 00000000 00000000 00000000    ................

and it seems value in register WDT_WCRR doesn't increment -> it could
mean that 32kHz clock isn't working? Any other ideas what to check?
Thanks.

BR,

marek

-- 
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer

Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
twitter: #opennandra
web: http://open-nandra.com

[U-Boot] watchdog not resetting beaglebone after timeout period

[Tom Rini]

On Thu, Dec 11, 2014 at 11:55:05AM +0100, Belisko Marek wrote:

> Hi,
> 
> I'm using latest u-boot master
> (9b416a9f4ca7cf5ac4d5f7143d67edde7f7d7326) running on beaglebone
> (white). This board has watchdog enabled by default for 60 secs
> timeout but in my case it's not resetting board after that amount of
> time. I did check watchdog registers:

I just checked on my BBB and with falcon mode it's tripping the reset.

-- 
Tom
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[U-Boot] watchdog not resetting beaglebone after timeout period

[Belisko Marek]

On Thu, Dec 18, 2014 at 9:19 PM, Tom Rini <trini@ti.com> wrote:
> On Thu, Dec 11, 2014 at 11:55:05AM +0100, Belisko Marek wrote:
>
>> Hi,
>>
>> I'm using latest u-boot master
>> (9b416a9f4ca7cf5ac4d5f7143d67edde7f7d7326) running on beaglebone
>> (white). This board has watchdog enabled by default for 60 secs
>> timeout but in my case it's not resetting board after that amount of
>> time. I did check watchdog registers:
>
> I just checked on my BBB and with falcon mode it's tripping the reset.
Hmm I don't have BBB by hand but I tested on BB without falcon mode
and it's not working.
>
> --
> Tom

BR,

marek

-- 
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer

Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
twitter: #opennandra
web: http://open-nandra.com