u-boot leaves watchdog enabled by default

[Michael Walle]

Hi Stefan,

it appears that since commit 06985289d45 ("watchdog: Implement generic 
watchdog_reset() version") - by default - the first watchdog is started 
unconditionally if CONFIG_WDT is set but never stopped before booting 
the operating system.

Shouldn't it also be stopped uncondionally? What's worse is that on one 
board/arch the watchdog is stopped in arch_preboot_os() which is never 
called in the bootefi case. So even if I'd do a workaround and stop it 
manually in my board code, I couldn't do that consistently for 
bootm/bootefi.

Or am I missing something here?

The SoC on my board has a built-in watchdog and I've noticed this 
behaviour when I was trying to install debian via its stock installer 
which doesn't have any driver support for it.

-michael