[flashrom] Flashrom failed on Axiomtek eBOX620-823 embedded computer

[Kenneth Frost]

Hi David,

I will take a look at the GPIO controls for this chip set.

Is it possible that the newer version of flashrom  version 0.9.4-r1394 
has this chip set in it?

Regards,

Ken Frost

On 09/06/2011 08:33 PM, David Hendricks wrote:
> On Tue, Sep 6, 2011 at 2:13 PM, Kenneth Frost <kfrost at oemcontrols.com 
> <mailto:kfrost at oemcontrols.com>> wrote:
>
>     Greetings,
>
>     I tried to flash this system with an updated bios using flashrom
>     utility.    The flash chip found was a "SST 49LF008A".    I
>     successfully read the flash to a filename, verified the image read
>     and determined the flash chip on the board.
>
>
> Hi Ken,
> I would guess that there is some GPIO-controlled write protection 
> mechanism enabled on that board. Sometimes you can disable these thru 
> BIOS settings, though it's entirely up to the vendor whether or not to 
> expose that.
>
> Of course, rebooting and toggling that setting in the BIOS is sort of 
> a pain and probably unfeasible if you wish to support more than a 
> small handful of motherboards. So it's usually preferable to toggle 
> that setting in Flashrom. In Flashrom's board_enable.c file, you'll 
> see several routines which do things like raise a GPIO to disable 
> write protection. You'll probably need to do something similar for 
> your board.
>
> If you're reasonably familiar with the chipset you're using 
> (SCH US15WPT), you can try to determine the write protection setting 
> experimentally. Here is one example of how to do it: 
> http://www.coreboot.org/pipermail/coreboot/2009-September/051987.html .
>
> Much of the tedious info such gathering and calculating base addresses 
> and offsets can be found from flashrom verbose output when you perform 
> a read operation. iotools <http://code.google.com/p/iotools/> can also 
> make your life easier when doing simple low-level operations.
>
> -- 
> David Hendricks (dhendrix)
> Systems Software Engineer, Google Inc.

-- 
OEM CONTROLS Inc.
10 Controls Drive	work: (203) 929-8431
Shelton, CT 06484	email: kfrost at oemcontrols.com

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