[coreboot] VIA CN700 / VT8237R support in V4 broken?

Christian christian.suehs at online.de
Sun Mar 4 20:01:41 CET 2012

Hey list
I currently working on a Igel Thin Client 3210.
The board is very closer to bcom/winnetp680.
CN700 northbridge
VT8237R southbridge
W83679HF SuperIO
A try with this tree did not work.
I'm not new to coreboot and think that the first debug message should
apear on the serial-console, but nothing happens.

I have compiled nearly all via boards to test the ROMs with qemu.
And get always this message:
qemu: fatal: Trying to execute code outside RAM or ROM at 0x000a0000

EAX=00000004 EBX=00000000 ECX=00000000 EDX=00000001
ESI=00000000 EDI=00000000 EBP=ffef7fe8 ESP=ffef7fb8
EIP=0009ff66 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0010 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
CS =0008 00000000 ffffffff 00cf9b00 DPL=0 CS32 [-RA]
SS =0010 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
DS =0010 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
FS =0010 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
GS =0010 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
LDT=0000 00000000 0000ffff 00008200 DPL=0 LDT
TR =0000 00000000 0000ffff 00008b00 DPL=0 TSS32-busy
GDT=     fff8df54 00000017
IDT=     00000000 00000000
CR0=00000011 CR2=00000000 CR3=00000000 CR4=00000000
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000 
DR6=ffff0ff0 DR7=00000400
CCS=00000004 CCD=000000c4 CCO=ADDB    
FCW=037f FSW=0000 [ST=0] FTW=ff MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
nothing more ...
There is no "Coreboot Starting bla, bla" message

Amd or Intel boards break later.

Is it a problem with Qemu and Via C7 CPUs or is their something wrong in
the via tree.

Is anybody working on a cn700 board for now.
There are hints for Rev. 3566 code for the southbridge? Is this
important. Does the current code not working?

Thanks Chris

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