[coreboot] bug report on dbm690t

[Bao, Zheng]

The VGABIOS reports exception if the coreboot is built in Buildtarget
way:
Check fallback/payload
CBFS: follow chain: fff272c0 + 38 + 15a88 + align -> fff3cd80
Check fallback/coreboot_ram
CBFS: follow chain: fff3cd80 + 38 + 1178f + align -> fff4e580
Check pci1002,791f.rom
In cbfs, rom address for PCI: 01:05.0 = fff4e5b8
PCI Expansion ROM, signature 0xaa55, INIT size 0xda00, data ptr 0x01b0
PCI ROM Image, Vendor 1002, Device 791f,
PCI ROM Image,  Class Code 030000, Code Type 00
copying VGA ROM Image from fff4e5b8 to 0xc0000, 0xda00 bytes
Executing Initialization Vector...
int15 (AX=4e08) vector at ff859
Unknown INT15 function 4e08!
int15 (AX=4e08) vector at ff859
Unknown INT15 function 4e08!
int15 (AX=4e08) vector at ff859
Unknown INT15 function 4e08!
Unexpected Exception: 13 @ 10:0001ff2f - Halting
Code: 0 eflags: 00010002
eax: 00000040 ebx: ffff42a4 ecx: 000ca0d9 edx: 02062020
edi: 0000001f esi: 000397f0 ebp: 0000c000 esp: 0003bae4


The SATA can not be set correctly in kernel stage if the coreboot is
built in Kconfig way.
scsi0 : ahci
scsi1 : ahci
scsi2 : ahci
scsi3 : ahci
ata1: SATA max UDMA/133 abar m1024 at 0xfc309000 port 0xfc309100 irq 16
ata2: SATA max UDMA/133 abar m1024 at 0xfc309000 port 0xfc309180 irq 16
ata3: SATA max UDMA/133 abar m1024 at 0xfc309000 port 0xfc309200 irq 16
ata4: SATA max UDMA/133 abar m1024 at 0xfc309000 port 0xfc309280 irq 16
ata2: SATA link down (SStatus 0 SControl 300)
ata3: SATA link down (SStatus 0 SControl 300)
ata4: SATA link down (SStatus 0 SControl 300)
ata1: softreset failed (device not ready)
ata1: applying SB600 PMP SRST workaround and retrying
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: softreset failed (device not ready)
ata1: applying SB600 PMP SRST workaround and retrying
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: limiting SATA link speed to 1.5 Gbps
ata1: softreset failed (device not ready)
ata1: applying SB600 PMP SRST workaround and retrying
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: softreset failed (device not ready)
ata1: applying SB600 PMP SRST workaround and retrying
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)

Now I have no idea about these issues. Any idea?



Zheng