[flashrom] Can't Flash on AOpen i965GMt-LA motherboard

[Björn Tantau]

Hi!

I tried to flash a new BIOS to my AOpen i965GMt-LA motherboard. Reading 
the ROM worked, but flashing did not. I'll gladly give you more 
information, just tell me what you need. :-)

Cheers,
Björn

$ sudo flashrom --programmer internal -c "W39V040FA" -w IGC1B.BIN
flashrom v0.9.9-rc1-r1942 on Linux 4.4.0-112-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.
Found chipset "Intel ICH8M".
Enabling flash write... OK.
Found Winbond flash chip "W39V040FA" (512 kB, FWH) mapped at physical 
address 0x00000000fff80000.
Reading old flash chip contents... done.
Erasing and writing flash chip... FAILED at 0x00000000! Expected=0xff, 
Found=0x49, failed byte count from 0x00000000-0x00000fff: 0x463
ERASE FAILED!
Reading current flash chip contents... done. Looking for another erase 
function.
FAILED at 0x00000000! Expected=0xff, Found=0x49, failed byte count from 
0x00000000-0x0000ffff: 0x463
ERASE FAILED!
Reading current flash chip contents... done. Looking for another erase 
function.
FAILED at 0x00000000! Expected=0xff, Found=0x49, failed byte count from 
0x00000000-0x0007ffff: 0x60915
ERASE FAILED!
Looking for another erase function.
No usable erase functions left.
FAILED!
Uh oh. Erase/write failed. Checking if anything has changed.
Reading current flash chip contents... done.
Good, writing to the flash chip apparently didn't do anything.
This means we have to add special support for your board, programmer or 
flash
chip. Please report this on IRC at chat.freenode.net (channel #flashrom) or
mail flashrom at flashrom.org, thanks!
-------------------------------------------------------------------------------
You may now reboot or simply leave the machine running.