* Martin Michlmayr <t...@cyrius.com> [2012-11-15 19:31]:
> I'm not entirely sure since I don't have such a device, but I believe
> the PIC itself is programmed so the watchdog is on unless you disable
> it.

Yes, it's on by default.

Also, there's currently no PIC control to keep the PIC watchdog alive.
You _have_ to turn it off using 0x67.

Here's QNAP rationale:

"Since the default watchdog function is disabled in Marvell SoC. It is
to prevent the system hang-up in uboot process. It will try to reboot
when system hang up in uboot, our kernel process will send the 0x67 to
PIC to disable the PIC's watchdog then enable the SoC's watchdog
function."

-- 
Martin Michlmayr
http://www.cyrius.com/


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