AnsweredAssumed Answered

IMX: Add external watchdog reset

Question asked by Ilies CHERGUI on Feb 2, 2017

Hi guys,

I’m working on the Linux kernel version 3.14.52 for the target imx6qdl, I need a support from you about Adding an external watchdog reset.

I applied the patch: https://patchwork.kernel.org/patch/6502881/, but I got a strange behavior when I tried to test the patch.

I’ve remarked that the reset cause of the reboot from the u-boot traces doesn’t change (I got POR all times).

 

I’ve used the following commands to test (please see the files attached):

1-      reboot

2-      echo c > /proc/sysrq-trigger

By using the second command, I think that I will get WDOG in the reset cause, unfortunately no.

 

Could you please guys give a support about that ?

 

TIA, 

Best regards,

Ilies CHERGUI

Embedded low level development engineer

Original Attachment has been moved to: watchdog_external_reset_cmd_sysrq-trigger.txt.zip

Original Attachment has been moved to: watchdog_external_reset_cmd_reboot.txt.zip

Outcomes