On 11.01.2015 07:45, Martin Roth wrote:
On 01/10/2015 07:53 AM, Kevin O'Connor wrote:
On Thu, Dec 25, 2014 at 11:45:40AM +0300, Kuzmichev Viktor wrote:
Hello,
I've been trying to boot grub installed on the hard drive using coreboot and SeaBIOS as a payload. The motherboard I'm using is Intel Mohon Peak. Also, I do not use VGA for output, only serial port. So, I included the sgabios into my rom file. Here is its layout:
It should have worked. How did you build SeaBIOS, what SeaBIOS config did you use, and what changes have you made to SeaBIOS?
-Kevin
As I recall, Mohon Peak uses 0x2f8 for the console serial port. Did you set sgabios to output to 2f8 instead of 3f8 in sgabios.h?
sgabios.h:#define COM_BASE_ADDR 0x3f8
Martin
Thank you for your replies!
Just checked sgabios.h and changed serial port base address to 2f8. Somehow I missed it earlier, although I did set this parameter in both coreboot and SeaBIOS before. Sadly, I do not currently have access to Mohon Peak, so I can't really test this right now but, hopefully, I would be able to test this in a few days. Also, I'd like to clarify one more thing. Should Option ROMS parameter in SeaBIOS menuconfig be checked for sgabios to work? Are there any other nuances I should keep in mind?
Viktor