[flashrom] Flash chip/chipset not found

Mon Nov 2 11:06:07 CET 2015

Hi Carl-Daniel,
I've attached the logfile output as requested.
The SRCMOS .EXE utility that comes on the BIOS update image saves 256 bytes of data.  The older versions has 128 bytes of data and the remainder was all 00x.  The last version has data within the last 128 bytes and that makes all the difference.
Whether the utility only processed the first 128 bytes initially and was corrected to save/restore the extra 128 bytes I don't know but it certainly does the trick now.
It is a DOS based utility and I've been able to configure a FreeDOS image under GRUB so that it will boot it once to set the BIOS settings I need and then boot back to the Linux OS.
Getting the settings out was a bit of a chore as I had to hex dump them to the screen so I could take a picture (and then type them in) as the image can't be updated and has no access to any other devices.  Running the utility from a USB device is no help either as the moment I disable USB in the BIOS I can't access the utility to write the settings to a file.
Best Regards,
Mark Rowlinson, Principal Engineer, Unix Support
MISGB Implementation Distributed

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From: Carl-Daniel Hailfinger [mailto:c-d.hailfinger.devel.2006 at gmx.net]
Sent: 29 October 2015 00:37
To: Rowlinson Mark <Mark.Rowlinson at uk.fujitsu.com>; flashrom at flashrom.org
Subject: Re: [flashrom] Flash chip/chipset not found

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<mailto:Mark.Rowlinson at uk.fujitsu.com>>;

> flashrom at flashrom.org<mailto: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

>

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