serial: Add Milbeaut serial control

Add Milbeaut serial control including earlycon and console.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sugaya Taichi 2019-04-15 20:31:40 +09:00 • committed by Greg Kroah-Hartman
commit ba44dc0430
4 changed files with 651 additions and 0 deletions