Hi Robert,
On Thu, Nov 28, 2019 at 1:22 PM Robert Hancock hancock@sedsystems.ca wrote:
I ended up needing to add this node for our board as well to be able to reset from U-Boot using DM. The watchdog itself is set up just from its own device tree entry, but there's nothing to tie the sysreset code into using the watchdog (and which one to use, since iMX has two of them) without that node being present.
In Linux this works differently - the watchdog drivers that are capable of triggering an immediate reset will register themselves as a reset handler automatically so the system will try to use that functionality in order to reboot the system. To avoid the need for that explicit wdt-reboot node, something like this would need to be implemented in U-Boot.
Thanks for the clarification!