[flashrom] Flash chip/chipset not found

[Carl-Daniel Hailfinger]

Hi Mark,

would it be possible for you to generate a log file using the additional
parameter
--output logfile.txt
when doing a read of the flash chip, then send that log file to us?
That would help us to finally merge support for the VT8251 chipset in
your point-of-sale IBM/Toshiba AnyPlace Kiosk Model 48xx series. We have
a strict rule that flashrom must be 100% reliable and thus we keep log
files for any newly supported/tested chipset around for reference. Your
log file would be used as reference for VT8251.

That said, it would be very interesting to know where the settings are
actually stored. Have you looked into the top 128 bytes of NVRAM? Maybe
there is another flash chip? Is there any way to trace what the
save/restore tool does (i.e. does it run on Linux)?

Regards,
Carl-Daniel


On 28.10.2015 23:25, Rowlinson Mark wrote:
> Hi Carl-Daniel,
>
> That change does allow the chipset to be recognised and it will write out the ROM.  It seems to be the BIOS code only (no settings) as it doesn't change if I change any settings within the BIOS.
>
> I've been directed to a save/restore utility that comes on the BIOS update image and it seems the last version actually accesses the data I'm interested in so I'm investigating this route at the moment. 
>
> Best Regards,
> Mark Rowlinson
>
> -----Original Message-----
> From: Carl-Daniel Hailfinger [mailto:c-d.hailfinger.devel.2006 at gmx.net] 
> Sent: 24 October 2015 09:22
> To: Rowlinson Mark <Mark.Rowlinson at uk.fujitsu.com>; flashrom at flashrom.org
> Subject: Re: [flashrom] Flash chip/chipset not found
>
> Hi Mark,
>
> this is a VIA VT8251 PCI to ISA Bridge you're using.
>
> I think Stefan Tauner (in CC) already was discussing something similar here:
> http://www.flashrom.org/pipermail/flashrom/2012-July/009552.html
> That email even has a patch attached.
>
>
> On 22.10.2015 22:24, Rowlinson Mark wrote:
>> Thanks for the swift response, I have attached output from the command requested.
>>
>> The device in question is an IBM (now Toshiba) AnyPlace Kiosk Model 4838-310.  The models we have are a mixture of 4838-310 and 4838-330 and support documentation refers to them as 4838-3xx.
> Heh, would be fun to add this to our tests.
>
> Regards,
> Carl-Daniel
>