Patch merged into master: 5f1cfd8 Do full flush on uart8250 only at end of printk.

the following patch was just integrated into master:
commit 5f1cfd8ee9d400f20a5aa30eb50b9afb5e2694db
Author: Kevin O'Connor 
Date:   Sat Jul 9 20:22:21 2011 -0400

Do full flush on uart8250 only at end of printk.

The previous code does a full flush of the uart after every character.
    Unfortunately, this can cause transmission delays on some serial
    ports.

This patch changes the code so that it does a flush at the end of
    every printk instead of at the end of every character.  This reduces
    the time it takes to transmit serial messages (up to 9% on my Asrock
    e350m1 board).  It also makes the transmission time more consistent
    which is important when performing timing tests via serial
    transmissions.

Change-Id: I6b28488b905da68c6d68d7c517cc743cde567d70
    Signed-off-by: Kevin O'Connor

See http://review.coreboot.org/90 for details.

-gerrit