Hello,
Found Winbond flash chip "W25Q128.W" (16384 kB, SPI) mapped at physical
address 0x00000000ff000000.
Finding a 1.8V flash chip on such a mainboard is very strange. Can you check the flash chip installed on your mainboard, to see if it actually is that chip?
I would also try flashrom from git, to see if it works. Looks like your distro's flashrom does not report the version.
Best regards,
Angel Pons