[SeaBIOS] [PATCH] Extend tools/readserial.py to support serial port timing calibration.

[Kevin O'Connor]

On Sat, Jul 09, 2011 at 07:01:00PM -0400, Kevin O'Connor wrote:
> > I also noticed coreboot enables the uart fifos. This is not beneficial
> > because the simple polling logic used by coreboot and SeaBIOS cannot utilize
> > the transmit fifo.
> 
> Could the fifos being enabled be the cause of the slow down even after
> the SeaBIOS serial polling fix?

I ran a quick test with the fifos disabled.  Unfortunately, I still
get a slower transmit rate - off by about 8us per character on my
e350m1 - even with the seabios patch I sent separately.  Weird.

-Kevin