Watchdog issue of iMX6 SABRESD

[omar_ccc]

We are using iMX6q_SABRESD, and we found one problem.

Even we DID NOT enable any watchdog (watchdog1 and watchdog2) of iMX6, but we do setup iomux the pin “MX6Q_PAD_GPIO_1__WDOG2_WDOG_B”, we found the system will be reset periodically. In other words, the behavior of the signal WDOG2_WDOG_B is not as expected.

Is there anybody having the same problem or anybody knowing the reason?

[omar_ccc]

We found this is due to Power-down counter event. This is already resolved. Thanks

[bikash]

Hi,

How did you solved the watchdog issue ? In my case, the watchdog restarts the board automatically after few moments. Can you please suggest, how to fix it without disabling the watchdog pin, do we have to run any deamon ?

Regards,

Bikash

[omar_ccc]

You have to disable power-down counter inside WDOG.

[ken_a]

Dear  chen,

                     i have the same issuse of you . can you tell me how to solved this issue?

Beas regards,

ken

[Yuri · Accepted solution]

Internal serial (USB) bootloader enables the WDOG. Also, if boot ROM crashes to boot an external device (say, SD),

USB bootloader starts.

[omar_ccc]

Our firmware (uboot, boot.img and system image) are in eMMC. So I think USB bootloader did not start at all. Any suggestion or comments?

[omar_ccc]

Is this setup “MX6Q_PAD_GPIO_1__WDOG2_WDOG_B” a correct setup to make GPIO_1 as a reset signal pin when watchdog timeout?

[Yuri]

Internal serial (USB) bootloader enables the WDOG.