[coreboot] #181: Tyan S2885 (and other K8 boards) won't boot with TINY_BOOTBLOCK

[Kent Hagebrand]

> #181: Tyan S2885 (and other K8 boards) won't boot with TINY_BOOTBLOCK
> ----------------------------------------+-------------------------
>    Reporter:  christian.suenkenberg@…  |         Owner:  stepan@…
>        Type:  defect                   |        Status:  new
>    Priority:  major                    |     Milestone:
>   Component:  coreboot                 |    Resolution:
>    Keywords:                           |  Dependencies:
> Patch Status:  there is no patch        |
> ----------------------------------------+-------------------------
>
> Comment (by anonymous):
>
>  Replying to [ticket:181 christian.suenkenberg@…]:
>  > `Commit 1f7d3c5672ec90f8d71907b1a07c8a87fa461047 "AMD-8111: Add
>  TINY_BOOTBLOCK support."` breaks coreboot on Tyan S2885 and probably other
>  K8 boards because the bootblock doesn't enumerate the (noncoherent) HT
>  chain before trying to write to the ROM Decode Control Register on the
>  AMD-8111 I/O Hub.
>  >
>  > I think a BOOTBLOCK_NORTHBRIDGE_INIT analogous to amdfam10 should fix this.
>
>  I think that I got the same bug in my ASUS A8N-E mainboard. Newly flashed  BIOS shows only a blank screen.
>  What should I do?
>
Futher testing with an old PCI graphics card instead of PCI Express
shows this text on the console:

SeaBIOS (version pre-0.6.2-20110924_103542-vasn250)
Press F12 for boot menu.
Booting from Floppy...
Boot failed: could not read the boot disk
Booting from Hard Disk...
Boot failed: could not read the boot disk
No bootable device.

I can't see any activity on my floppy or hard disk and I've tried to
hit F12 but nothing happens.
To be able to do further testing I have ordered a new BIOS and I will
also try to
find a "RD1-PMC4 Bios Savior". This will enable me to have dual BIOS
on my board and
easily switch between them with an external switch.

/Kent