I cant stop Watchdog - iMX6

[karthikeyanraju]

Hi all,

I am using Yocto bsp version 4.1.15_2.0.0 . I have enabled watchdog in u-boot. I am trying to stop the watchdog from filesystem using application.  I have already done the below tests,

Using application - ioctl functions like alive ,watchdog discard and closing the watchdog

Using memtool  -  Extending the WD time in register, but it did not worked . Can anyone help me to solve this issue ?

[karthikeyanraju]

Hi igorpadykov,

Thanks for your quick response.

Is there any way to make u-boot watchdog alive ? I have tried watchdog apis to keep alive using application, But doesnt worked. I want to keep my watchdog alive...  Can you give suggestion.

[igorpadykov]

Hi Karthikeyan 

once started, watchdog can not be disabled as some bits like WDE Watchdog Enable,

are write one once only bits. This is described in sect.70.7.1 Watchdog Control Register

(WDOGx_WCR) i.MX6DQ Reference Manual

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf

Best regards
igor
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