[coreboot] ASUS m5a88-v AGESA port (bulldozer)

darkdefende at gmail.com darkdefende at gmail.com
Wed Jul 4 14:18:59 CEST 2012


I bought a asus m5a88-v mainboard and was hoping to run coreboot on it.
Sadly I found out that the current implementation only supports 
famlily 10 type CPUs.

After looking at other motherboards supported by coreboot I found that
all (?) motherboards that supports greater than family 10 uses the AMD
AGESA wrapper. So I thought I might just port the m5a88-v to use that
instead and hopefully it would be able to run both family 10 and 15
type CPUs.

After copy, pasting mostly from asrock/e350m1 (SB800) and supermicro/h8ggi
(family 10 & 15 support) and modifying the current source files I've managed
to get quite far in the the boot process. However after starting seabios and
printing "Press F12 for boot menu." it doesn't go any further.
Here is the complete coreboot log:

I suspect that the "ASSERTION FAILED:" errors might have something to do with
it. And also perhaps a ugly hack I had to do to work around the PCI pci_scan_bus
to not lock up.
I limited the bus scan to only 0 if the bus is greater than 0 then it will skip
that code.
If I didn't do this it would stop booting and freeze at line 505 in the boot log
,when it tries to scan for bus 01. It seems to freeze if it tries to scan on
anything else that bus 00. I have no idea why it tries to scan on bus 1-9.
In most other coreboot log I've seen it stop automagicly on bus 00.

Anyhow, I would really like some help with this as it seems like I'm quite close
to get this working.

If someone wants to look at the code please tell me where and how to upload it.

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