eugen@eugen:~$ sudo flashrom -w 61PCM630.BSS
flashrom v0.9.5.2-r1517 on Linux 3.13.4-031304-generic (x86_64), built with libpci 3.1.8, GCC 4.6.3, little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OK.
Found chipset "NVIDIA MCP61". Enabling flash write... This chipset is not really supported yet. Guesswork...
SPI on this chipset is WIP. Please report any success or failure by mailing us the verbose output to flashrom@flashrom.org, thanks!
Mapping NVIDIA MCP6x SPI at 0xfec80000, unaligned size 0x544.
Please send the output of "flashrom -V" to flashrom@flashrom.org with
your board name: flashrom -V as the subject to help us finish support for your
chipset. Thanks.
OK.
Found Macronix flash chip "MX25L8005" (1024 kB, SPI) at physical address 0xfff00000.
Flash image seems to be a legacy BIOS. Disabling coreboot-related checks.
Reading old flash chip contents... done.