Strange, the log you shared looked less verbose to me than expected but
seems like I was wrong. Anyway, you might find an example on a full debug
log here .
I have a small build script I use to build coreboot for my board, please
find it attached.
The version currently running on my box is 4.6-2554-ga1b4c94.
Thank you for your kind reply Gergely.
I think the cable is not the problem, I have been using it for years and
I am using a usb dongle but not a cheap one. Tomorrow I will try with
another cable and a real COM port. Just to be 100% sure.
Console is fast at the very first time (just the "normal") but after two
seconds it becomes extremely slow.
Please, can you say me which is the git revision you are using?
The console log I attached is from a SPEW debug level, not corresponding
with the config.. I tried several configs today :-) .
Is it possible to share your config with me?
On 10/02/18 21:44, Gergely Kiss wrote:
I've been using Coreboot on my board for several weeks, it is serving as
an HTPC running 24/7 and it's working perfectly stable which suggests the
firmware should be free of bugs. It is likely that you are facing some
configuration or hardware issue here.
I didn't see any issues with the serial output while working with the
board once the SuperIO chip started to work. Make sure the cable you use is
intact and try to attach it to another machine. At the time I was working
with my board, I used a Dell Port Replicator with a native COM port so I
could use a standard null-modem cable and it was working flawlessly. In
case you use a USB serial adapter, try replacing it or attach the serial
cable directly to a COM port if you have one available.
Also, please enable debug_level=Spew as it seems the console log you
attached comes from a less verbose setting and therefore it's not as useful
as it should be.
Note that the VBIOS image is executed by SeaBIOS which means you won't see
anything on your display until the payload is executed.
If all else fails, you can still attach a POST debug module to the LPC
header of the board  which can help a lot to find out where the boot
Feel free to contact me if you need some more help or information, I'm
happy to assist!
On 10 February 2018 at 18:17, Elisenda Cuadros <lists(a)e4l.es> wrote:
I'm trying to use Coreboot in an Asus AM1I-A board recently ported by
Gergely Kiss (thank you!).
I am using the default config settings and added vga rom extracted with
UEFITool from the vendor bios.
After flashing and booting I get no output from vga.
Serial console is extremely slow too (30 minutes to write the log)
I attach the coreboot console log, config and cbfs.txt.
Thanks in advance.