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Ladislav Michl authored Feb 01, 2010 and Wolfgang Denk committed Feb 03, 2010

ns16550 busyloops waiting for incoming byte causing watchdog to reboot
while waiting for a key press. A call to WATCHDOG_RESET in NS16550_getc
loop fixes it.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>