[coreboot] Upgrading SPI ROM chip?

Juhana Helovuo juhe at iki.fi
Thu Dec 16 19:21:56 CET 2010

Carl-Daniel Hailfinger wrote:
> On 05.12.2010 12:26, Juhana Helovuo wrote:
>> How does a chipset know the size of the SPI BIOS ROM on board
> Chipsets do not know the size of the flash ROM chip.

Ok. Thanks for the explanation, Carl-Daniel and Rudolf.

I tried substituting a bigger SPI ROM chip on my test mainboard and it 
worked very well. Flashrom and Coreboot co-operate very nicely. The only 
change needed was configuring Coreboot to use a bigger ROM size in 

The original chip was MX25L8005 (1 MByte) and the substitute is 
MX25L1605 (2MByte). The ROM is connected to AMD SB700 southbridge.

Best regards,
Juhana Helovuo

More information about the coreboot mailing list