2013/8/20 Fabio Estevam <[email protected]> > On Thu, Aug 15, 2013 at 2:00 AM, Mårten Wikman <[email protected]> > wrote: > > > Just after I sent this question to the mailinglist I found out it's > possible > > to enable watchdog just by writing something into /dev/watchdog0. > However I > > don't know yet how to enable watchdog very early in the boot process, I > have > > seen some posts on freescale community that says how to do it from > u-boot, > > that could be one way to do it. > > Yes, just tried 'echo 0 > /dev/watchdog' and then after about 20 > seconds the watchdog resets the board. >
But how do I enable watchdog directly on boot before rootfs is mounted? For example if I get a kernel panic because my rootfs is missing then I want watchdog to reset my system.
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