It is useful to display log messages on the console. Add a simple driver
to handle this.
Note that this driver outputs to the console, which may be serial or
video. It does not specifically select serial output.
Change-Id: I3626673a306557400584e673f9725e74ecbaaf98
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit c6d47535dfb6636ae5244958a2a9e043bb7646ae)
Simon Glass