[coreboot] flashrom touches only 0x70000-0x80000 addresses of my bios flash

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Tue May 26 01:56:49 CEST 2009

Hi Alexander,

On 24.05.2009 18:19, Alexander Gordeev wrote:
> I've tried flashrom on my Gigabyte GA-K8N-SLI board but it can only write to 
> 0x70000-0x80000. This includes both write and erase.

Did you test erase separately?

If write/erase is only working on the top 64 kByte, we probably have to
unlock the rest of the chip as well. Since our Pm49FL004 code already
has unlocking routines, we probably need a board enable for you.

Do you have a multimeter or continuity tester?

> Could you please help me to solve this?

We can try.

> BTW, I don't yet have a backup chip so tested changes are 
> preferred :)


> flashrom v0.9.0+r544
> Found chipset "NVIDIA CK804", enabling flash write... OK.
> Found chip "PMC Pm49FL004" (512 KB) at physical address 0xfff80000.

The P49FL004 should be supported just fine. CK804 is OK as well.
Definitely a board enable issue.



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