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IMX6 Watchdog does not reset when kernel boot hangs

Question asked by Souleymane Conte on Mar 18, 2019
Latest reply on Mar 21, 2019 by Yuri Muhin

I'am working on a custom board based on IMX6Solo processor and TX6S-8035 module from KARO. I would like to enable watchdog. I build an image with fsl-comminuty-bsp (krogoth) and enable watchdog which is available as /dev/watchdog - /dev/watchdog0. I enable watchdog by passing watchdog parameters on kernel command line :

noinitrd console=ttymxc1,115200 ro debug panic=1 root=PARTUUID=0cc66cc0-02 rootwait earlyprintk=serial,ttymxc1,115200 imx2-wdt.nowayout imx2-wdt.timeout=45 

I implemented to the watchdog service to kick the watchdog so that reboot can't be happens on normal using. When i stop watchdog service, the system reboot and i can see that this is du to watchdog reset. But sometimes, the kernel boot hangs and the watchdog don't reboot the system.


Does somebody has any idea for the issue
Best regards,