[LinuxBIOS] Flashrom can't detect SST 39SF020A on Gigabyte 7VT880-RZ

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Fri Oct 5 13:44:10 CEST 2007

On 05.10.2007 10:49, Peter Lemenkov wrote:
> Hello All!
> I've got Gigabyte 7VT880-RZ mainboard. After quick look at the suface
> of it I found that it uses SST 39SF020A flash chip. Unfortunately
> flashrom won't even read data from flash. Full log here:
> http://peter.fedorapeople.org/flashrom.txt
> I have no clue what should I do next. Please give an advice.

The ID should be 0xbf (manuf)/ 0xb6 (device), but nothing like that
appears in the logs. I just verified with the data sheet that the
probing sequence is correct.

> Probing for SST39SF020A, 256 KB
> probe_jedec: id1 0x25, id2 0x41

Since what you got was not what you expected, I believe the board needs
an additional enable sequence.


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