Using the hardware watchdog

The LS1043 CPU integrates a hardware watchdog, which can be utilised under Linux with the imx2-wdt module.

To set a timeout, append the following to the kernel command line:

imx2-wdt.timeout=30

During boot you should see the driver parameters at boot:

[    3.384012] imx2-wdt 2ad0000.wdog: timeout 30 sec (nowayout=0)