[coreboot] Serial Console only starts after reset

Joseph Smith joe at settoplinux.org
Tue Jun 15 14:25:48 CEST 2010

On Tue, 15 Jun 2010 14:13:24 +0200, Stefan Reinauer
<stefan.reinauer at coresystems.de> wrote:
> On 6/15/10 1:38 PM, Joseph Smith wrote:
>> Hello,
>> I have a strange thing happening on the i810 port I am working on. When
>> power the board on i do not get any serial console from coreboot. VGA
> turns
>> on and works fine, but no serial output. The strange part is if I push
> the
>> reset button, serial console comes up and works fine until the next
>> off. The SuperIO is SMSC LPC47M102 and I am using
> superio/smsc/smscsuperio.
>> Just wondering if anyone else has encountered this before. Any help /
>> thoughts would be appreciated.
> Your Super IO chip is not initialized correctly. Compare the register
> output after reset and from cold start.

You mean with superiotool?

> Did you run the same coreboot image already when you pressed the reset
> button, or did you initially boot with the BIOS?
Yes, same coreboot image.

Joseph Smith

More information about the coreboot mailing list