Reboot not working Imx8mq

[saurav-pandya]

Hi,

I am working on custom imx8mq board. Reboot functionality is not working.

Dmesg log :

root@imx8mqwave:~# dmesg | grep -i watch
[ 0.060842] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 1.596813] imx2-wdt 30280000.watchdog: timeout 60 sec (nowayout=0) 

After reboot command log :

[ OK ] Reached target Reboot.
[ 37.249047] watchdog: watchdog0: watchdog did not stop!
[ 37.257902] printk: systemd-shutdow: 32 output lines suppressed due to ratelimiting
[ 37.276780] systemd-shutdown[1]: Syncing filesystems and block devices.
[ 37.283557] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[ 37.296947] systemd-journald[232]: Received SIGTERM from PID 1 (systemd-shutdow).
[ 37.309843] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[ 37.324276] systemd-shutdown[1]: Hardware watchdog 'imx2+ watchdog', version 0
[ 37.332798] systemd-shutdown[1]: Unmounting file systems.
[ 37.339762] [351]: Remounting '/' read-only in with options '(null)'.
[ 37.358767] EXT4-fs (mmcblk0p1): re-mounted. Opts: (null)
[ 37.368704] systemd-shutdown[1]: All filesystems unmounted.
[ 37.374293] systemd-shutdown[1]: Deactivating swaps.
[ 37.379397] systemd-shutdown[1]: All swaps deactivated.
[ 37.384639] systemd-shutdown[1]: Detaching loop devices.
[ 37.392321] systemd-shutdown[1]: All loop devices detached.
[ 37.403337] imx-sdma 30bd0000.dma-controller: external firmware not found, using ROM firmware
[ 37.403420] kvm: exiting hardware virtualization
[ 37.418815] imx-sdma 302c0000.dma-controller: loaded firmware 4.5
[ 37.460048] imx2-wdt 30280000.watchdog: Device shutdown: Expect reboot!
[ 37.467160] reboot: Restarting system

Please help me on same what is issue.

Thanks,

Saurav 

[batuhanky]

Hi Saurav,

I am working on a custom IMX8 carrier board and I've same issue. I think it's hardware problem. How did you solve this problem?

Can you give me a some information about it?

Regards,

Batuhan

[saurav-pandya]

GIO1_IO2 connected with watchdog, to soft reboot give low pulse to reboot in our case.

[batuhanky]

Hi Saurav,

We're working on custom imx8 carrier board and we've same error. I think it's hardware issue. How did you solve this error? Can you give me a some information about it?

Thanks

[Junjielu · Accepted solution]

Hi Saurav,

Have you got the answer yet?  I got the same problem on my custom board!!

thanks,

Jason

[saurav-pandya]

Hi @Junjielu ,

Thant is our hardware issue.

Thanks,

Saurav