[flashrom] External programmer update

[Sean Nelson]

On 5/28/10 9:48 AM, fritz wrote:
> However, the chip I wanted to program - Am29F040B - I could NOT detect.
>
> I'll spare you the in-depth story of the past twelve hours I've spent 
> working on it.
>
> The summary:
> Flashrom (from svn) would detect the other chips using addresses 
> 0x5555, 0x2AAA, 0x5555
> Flashrom (from svn) would try to detect the Am29F040 using addresses 
> 0x0555, 0x02AA, 0x0555 - which is not according to the datasheet.
>
The Problem is the Am29F040B uses 0x2AA variant, but the Am29F040 uses 
0x2AAA. What AMD/Spansion did was change the command addresses without 
changing the chip ids. Sadly there's no way to distinguish between the two.