arm: mvebu: x530: Enable watchdog in SPL and U-Boot

Enable the hardware watchdog to guard against system lock ups when
running in the SPL or U-Boot. Stop the watchdog just before booting so
that the OS can re-enable it if needed.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
3 files changed