Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1395861 > unrolled thread

uboot watchdog and linux kernel

Back to article view | Back to linux.kernel

Contents

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

#1395861 — uboot watchdog and linux kernel

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.

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web