Hi all!
I've tested Gigabyte GA-EP35-DS3L board (http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?Produ...) and it is supported by flashrom out of the box:
flashrom v0.9.0+r544 No coreboot table found. Found chipset "Intel ICH9", enabling flash write... OK. Calibrating delay loop... OK. Found chip "Macronix MX25L8005" (1024 KB) at physical address 0xfff00000. No operations were specified.
I've tested all the operations and rebooted to a new BIOS and everything is ok so far.
I'll be happy to provide any additional information so please feel free to ask!