i.MX53 restart via watchdog does not work

Fabio Estevam festevam at gmail.com
Tue Apr 19 08:39:32 PDT 2016


On Fri, Apr 15, 2016 at 1:17 PM, Stanislav Meduna
<stanislav.meduna at nxtcontrol.com> wrote:
> Hi,
>
> I am using an TQMa53 board, which expects to be resetted
> by watchdog circuit. In older kernels ths was done in
> by mxc_restart defined in arch/arm/mach-imx/system.c
> and initialized and wired in mach-imx53.c.
>
> Current kernels however do not use this and the mach-imx53.c
> does not set .restart. I am getting
>   imx2-wdt 53f98000.wdog: Device shutdown: Expect reboot!
>   reboot: Restarting system
> and the system just hangs there.

I am able to reproduce this issue on a imx6ul-evk board.

It works fine on a imx6q sabresd board though.



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