i.MX53 restart via watchdog does not work

Fabio Estevam festevam at gmail.com
Tue Apr 19 11:43:31 PDT 2016


On Tue, Apr 19, 2016 at 3:28 PM, Stanislav Meduna
<stanislav.meduna at nxtcontrol.com> wrote:
> On 4/19/2016 8:18 PM, Fabio Estevam wrote:
>
>> I am booting via NFS, so not eMMC related.
>
> Where are you bootstrapping the bootloader from?
>
> I am also not using the eMMC at all, I was tftp-booting
> a minimal initramfs image with just rdinit=/bin/sh (the fastest
> way to play with reboots).
>
> In my case the bootloader (U-Boot) itself is loaded from
> the eMMC. To me it looks the shutdown code somehow brings
> the board to a state where the processor itself can't
> boot the bootloader.

imx53-qsb boots from a SD card. Issuing a 'reboot' command works fine
on 4.6-rc4.



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