[coreboot] coreboot+seabios timings

[Kevin O'Connor]

On Sun, Oct 17, 2010 at 04:36:56PM -0500, Scott Duplichan wrote:
> For coreboot+seabios, I get a power on to DOS boot time of around 2.7
> seconds. This is with USB enabled and a 5400 rpm sata drive. While 2.7
> seconds is good, there is probably room for improvement. I would like
> to see a bigger coreboot advantage over UEFI. All of these numbers are
> for AMD hardware with family 10h processors.

Thanks.  Can you post the debug output using SeaBIOS'
tools/readserial.py program?  I'd be curious to see where the time is
spent.

Also, try the SeaBIOS options CONFIG_THREAD_OPTIONROMS and
CONFIG_ATA_DMA.  (The ATA DMA can be a little finicky though - fixing
it is on my todo list.)

-Kevin