[LinuxBIOS] Unable to flash the K8Upgrade-VM800 Bios

[Kiran Patil]

Hello All and Merry Christmas,

Our first hands-on with Linux Bios.

We removed the Flashrom from K8Upgrade-VM800 Bios socket and inserted the
new Flashrom SST49LF004A/B.

But the flash is not happening properly and the Bios is not written to the
Bios chip.

Hence unable to boot with new Flashrom.

Is it the problem of the flashrom utility ?

We are ready fix things, please guide us.

Note:
          We did not try to boot Linux bios, instead we tried to boot the
PC-Bios which is present in the Motherboard by writing it on to new
flashrom, so as to check whether the flashrom utility is working properly or
not.

Execution steps:
--------------------------
lspci output:
-------------------
root at example:/home/kiran/bios_files# lspci
00:00.0 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890
South]
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID
Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge
[KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc.
VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev
78)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
01:00.0 VGA compatible controller: VIA Technologies, Inc. S3 Unichrome Pro
VGA Adapter (rev 01)

Erasing Flashrom:
-----------------------------
root at example:/home/kiran/bios_files# flashrom -E
Calibrating delay loop... ok
No LinuxBIOS table found.
Found chipset "VT8237": Enabling flash write... OK.
SST49LF004A/B found at physical address: 0xfff80000
Flash part is SST49LF004A/B (512 KB)
Erasing flash chip

Writing the Original Bios to the new Flashrom:
---------------------------------------------------------------------------
root at example:/home/kiran/bios_files# flashrom -w Dec26_Bios
Calibrating delay loop... ok
No LinuxBIOS table found.
Found chipset "VT8237": Enabling flash write... OK.
SST49LF004A/B found at physical address: 0xfff80000
Flash part is SST49LF004A/B (512 KB)
Flash image seems to be a legacy BIOS. Disabling checks.
Programming Page: 0007 at address: 0x00070000

Verifying flash against file:
------------------------------------------
The last step shows FAILED which means the Bios has not been written
properly.

root at example:/home/kiran/bios_files# flashrom -v Dec26_Bios
Calibrating delay loop... ok
No LinuxBIOS table found.
Found chipset "VT8237": Enabling flash write... OK.
SST49LF004A/B found at physical address: 0xfff80000
Flash part is SST49LF004A/B (512 KB)
Flash image seems to be a legacy BIOS. Disabling checks.
Verifying flash - FAILED

Reading flash and saving into file:
------------------------------------------------------
root at example:/home/kiran/bios_files# flashrom -r Pc_Bios
Calibrating delay loop... ok
No LinuxBIOS table found.
Found chipset "VT8237": Enabling flash write... OK.
SST49LF004A/B found at physical address: 0xfff80000
Flash part is SST49LF004A/B (512 KB)
Reading Flash...done

Diff of Original Bios and latest read Bios:
------------------------------------------------------------------
root at example:/home/kiran/bios_files# diff Dec26_Bios Pc_Bios
Binary files Dec26_Bios and Pc_Bios differ

Thanks,
Kiran.
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