flashrom v0.9.1-r885
No coreboot table found.
DMI string 0: "Tyan Computer Corporation "
DMI string 1: "MCP55 "
DMI string 2: "REFERENCE"
DMI string 3: "Tyan Computer Corporation "
DMI string 4: "S2915 "
DMI string 5: "REFERENCE"
Found chipset "NVIDIA MCP55", enabling flash write... OK.
This chipset supports the following protocols: Non-SPI.
Calibrating delay loop... 551M loops per second, 100 myus = 201 us. OK.
No EEPROM/flash device found.
If you know which flash chip you have, and if this version of flashrom
supports a similar flash chip, you can try to force read your chip. Run:
flashrom -f -r -c similar_supported_flash_chip filename

Note: flashrom can never write when the flash chip isn't found automatically.