tree ab5ff6c81127b3c4090755734d780b834c862b43
parent 85e5f5b7a7f8d889271f94791606cde62d81d53f
author kunhuahuang <huangkunhua@gmail.com> 1430161279 +0800
committer Tom Rini <trini@konsulko.com> 1431257378 -0400

stm32f4: add serial print port

Add the stm32F4 board's serial ports support.
User can use it easily.
The user only need to edit the number of the usart.
The patch also fix the serial print out.

Last, this version of patch fix the first patch checkpatch.pl error.
Thanks to Kamil Lulko.

Signed-off-by: kunhuahuang <huangkunhua@gmail.com>