I.mx6 quad with debian image stops on reboot command and not restart

I.MX6
1

Reboot command operates successfull while stopping devices and processes.
But at the end, the system stopped and rebooting is not triggered.
This is the output:
[ 518.428843] ci_hdrc ci_hdrc.1: remove, state 4
[ 518.433339] usb usb2: USB disconnect, device number 1
[ 518.438417] usb 2-1: USB disconnect, device number 2
[ 518.445354] ci_hdrc ci_hdrc.1: USB bus 2 deregistered
[ 518.450617] imx2-wdt 20bc000.watchdog: Device shutdown: Expect reboot!
[ 518.457313] reboot: Restarting system

The system remains at last line forever. Does not reboot.
Previous line notifies watchdog: Device shutdown: Expect reboot!

Any suggestions what is happen ?

2

It is most likely the device is rebooting and then not able to initialize the sdhc card to reload the bootloader. You can verify this happening by plugging in a usb-a to usb-a cable into a computer and see if the device is in SDP recovery mode. I generally use a usb-a to usb-c cable and then a usb-c female to usb-a male adapter as the USB-C spec requires a resistor on the VCC line and this will protect both devices from power surges.