uboot watchdog and linux kernel

From	Arthur LAMBERT <lambertarthur22@gmail.com>
Newsgroups	linux.kernel
Subject	uboot watchdog and linux kernel
Date	2016-05-06 15:20 +0200
Message-ID	<rvNPI-5Xd-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

I am working on custom imx6 board with linux 3.14.52. I am trying to use hardware
watchdog from uboot. I am able to enable with success the watchdog in uboot.
Booting with an invalid kernel will reboot the board after timeout. Problem is in
linux side. I have some random reboot sometimes. I am not able to understand where
is the code to ping the uboot hardware watchdog in linux kernel.

* There is no /dev/watchdog entry associate to my uboot watchdog (there are entries
only for pmic watchdog)
* Only code where I find ping of uboot watchdog seems to be in imx2 watchdog driver.
But this driver is not enable in my kernel config. But if noone is pinging the watchdog,
why I am able to play with my board during few hours sometimes ??

Thanks,
Arthur.

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

uboot watchdog and linux kernel Arthur LAMBERT <lambertarthur22@gmail.com> - 2016-05-06 15:20 +0200

csiph-web