[U-Boot] CONFIG_WATCHDOG on MPC85XX and QorIQ P1/P2

[Felix Radensky]

Hi Dipen,

On 03/03/2011 06:27 AM, Dudhat Dipen-B09055 wrote:
> Hi All,
>
> Just clarification, felix is asking for WatchDog support on u-boot not on Linux.
> If he is asking on Linux then it's there and we have tested it.

Correct. It works fine in linux. I've even tried to port linux code that
enables watchdog (booke_wdt.c/__booke_wdt_enable()) to u-boot,
but was not successful. Watchdog never triggered, although I did
not refresh it.

I'd appreciate some advice on what may be different in u-boot
vs. linux.

Thanks a lot.

Felix.


> Regards,
> Dipen
>
> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Tabi Timur-B04825
> Sent: Thursday, March 03, 2011 9:51 AM
> To: Aggrwal Poonam-B10812
> Cc: U-Boot-Denx; Felix Radensky; Kumar Gala
> Subject: Re: [U-Boot] CONFIG_WATCHDOG on MPC85XX and QorIQ P1/P2
>
> I don't think anyone here has ever turned on watchdog support on an 85xx board.  I think it works on 86xx boards, though.
>
> Aggrwal Poonam-B10812 wrote:
>> Hello Felix
>>
>> We have not used watchdog feature in u-boot as such.
>>
>> Timur, do you have any idea about this? Can you give some pointers here.
>>
>> I will also try to explore it more.
>>
>> Regards
>> Poonam
>>
>>> -----Original Message-----
>>> From: Felix Radensky [mailto:felix at embedded-sol.com]
>>> Sent: Thursday, March 03, 2011 5:41 AM
>>> To: U-Boot-Denx; Kumar Gala; Aggrwal Poonam-B10812
>>> Subject: CONFIG_WATCHDOG on MPC85XX and QorIQ P1/P2
>>>
>>> Hi,
>>>
>>> I'm trying to enable watchdog in u-boot on P1011 based platform.
>>> I've noticed that all 85XX platforms have CONFIG_WATCHDOG disabled.
>>> There's a definition of reset_85xx_watchdog() in cpu/mpc85xx/cpu.c
>>> but no code that actually enables the watchdog.
>>>
>>> What should be done to make this feature working on these platforms ?
>>>
>>> Thanks a lot.
>>>
>>> Felix.
>>>
>>>
>>>
>>>
>
> --
> Timur Tabi
> Linux kernel developer
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