Hi everyone,
I own a Supermicro H8SCM-F-O mainboard (AMDs SP5100 Chipset), one of the boards AMD as of recently claims to officially support. So I decided to try coreboot, but (as expected) it is not really an out-of-the-box experience.
First of all, flashrom does not support flashing out-of-the-box, but Frederic Temporelli's patches ( http://patchwork.coreboot.org/patch/3326/ and http://patchwork.coreboot.org/patch/3326/ ) work fine for me (I tested multiple reads and multiple writes, always worked), I can report that to the flashrom list separately if you want.
I built coreboot from the gerrit-branch (also tried a "stable" revision), coreboot-4.0-1714-gf8adf7a, using the "default" board-config incl. seabios (stable) as payload. After powering on nothing happens (apart from the fans running and the power led flashing) and it stays that way, it is silent on VGA as well as serial. After manually triggering a reset I immediately get the following output on serial:
coreboot-4.0-1714-gf8adf7a Wed Oct 5 00:31:05 CEST 2011 starting... BSP Family_Model:
Here it hangs, and I don't quite know how to move on and debug the issue.
Can you give me any hints where to go on from here? I have external flashing equipment at hand (which also works fine btw.), but no fancy bios-debugging hardware.
Regards,
thomasg
P.S. In case anyone else stumbles upon it: the board has 2 separate flash chips, one Macronix MX25L12845E with 128 Mbit (the SOIC16W package on the left of the board) as well as a SST25VF016B, 16 Mbit, as the SOIC8W on the right. The first one holds the IPMI firmware, the second one the AMI BIOS. Flashing requires a testclip or some really serious soldering skills. Attaching a SO8 socket can only be done with hot air soldering.