Hello!
i try to use flashrom with motherboard Asrock N68C-S UCC http://www.asrock.com/mb/manual.asp?Model=N68C-S%20UCC
http://www.asrock.com/mb/overview.ru.asp?cat=Manual&Model=N68C-S%20UCC
with NVIDIA MCP61 chipset and W25Q80  chip.
It is a part of russian manufacture'r computer Depo Ego 9730 http://www.depo.ru/download/drivers/2010/User_Manual/DEPO_Ego_manual_2010.pdf
I don't find any switches to enabe/disable flash writing on motherboard and in the bios menu.

i use OpenSuse 12.2 with this script

#!/bin/bash
# get information about flash chip & BIOS
name="W25Q80_chipset_NVIDIA_MCP61_on_Asrock_N68C-S_UCC"
sudo /usr/sbin/flashrom -V > $name.V.txt
sudo /usr/sbin/flashrom -VVVr $name.flash > $name.Vr.txt
sudo /usr/sbin/flashrom -VVVE > $name.VE.txt
sudo /usr/sbin/lspci -nnvvxxx > $name.lspci_nnvvxxx.txt
sudo /usr/sbin/superiotool -deV > $name.superiotool.txt

and get some warnings from flashrom.
There are script's output files in attachment.