lkml.org 
[lkml]   [2016]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectWatchdog reset trigger for eMMC
Hi All,

Using microSD card when I try to write into /dev/watchdog device
it triggers reboot of the board after timer expires.
-----------------------------------------------------------------------------------------------
root@odroidxu4l:~# echo 3 > /dev/watchdog
[ 1659.021844] watchdog: watchdog0: watchdog did not stop!
root@odroidxu4l:~#
root@odroidxu4l:~#
root@odroidxu4l:~#
root@odroidxu4l:~#
root@odroidxu4l:~#

U-Boot 2016.03-00665-g563d8d9-dirty (Apr 04 2016 - 22:27:07 +0930) for
ODROID-XU
3

CPU: Exynos5422 @ 800 MHz
Model: Odroid XU3 based on EXYNOS5422
Board: Odroid XU3 based on EXYNOS5422
Type: xu4
DRAM: 2 GiB
-----------------------------------------------------------------------------------------------
But when I try this on eMMC it just freezes.
I know we have to set and unset gpio pin (SD_0.RST) to trigger reset
before reboot.
-----------------------------------------------------------------------------------------------
root@odroidxu4e:~# echo 4 > /dev/watchdog
[ 639.192617] [c3] watchdog watchdog0: watchdog did not stop!
root@odroidxu4e:~#
root@odroidxu4e:~#
root@odroidxu4e:~#
-----------------------------------------------------------------------------------------------
I would like to know what is way board reset after watchdog reset after timeout.

Best Regards
-Anand Moon

\
 
 \ /
  Last update: 2016-04-30 08:21    [W:0.041 / U:0.644 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site