[Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Sonic Zhang 2007-12-23 23:18:08 +08:00 committed by Bryan Wu
commit 4c195ad88b