Failed flash on Intel Bay Trail platform

[Quinn Plattel]

Hi,

Just tried to contact you guys via irc chat.  Here is the transcript:

13:47 -!- Irssi: Join to #flashrom was synced in 1 secs
13:47 < quinn> hello, need help with a failed flash on an Intel Bay Trail
               platform.
13:48 < quinn> Detected flash chip is Winbond W25Q64.W 8192 kB, SPI mapped at
               phy addr 0xff800000
13:50 < quinn> System is an industry pc with model LEC-3030T
13:51 < quinn> Bios made by Aptio.
13:52 < quinn> dmidecode says Vendor is AMI with bios version 5.6.5 and release
               date 05/05/2016
13:52 < quinn> BIOS revision 5.6 according to dmidecode
13:54 < quinn> Re-reading the flash results in same size rom file but filled
               with "ff".
13:55 < quinn> I have the original rom saved.
13:56 < quinn> flashrom shows warning when reading or writing: BIOS region SMM
               protection is enabled!
13:57 < quinn> flashrom version used is v0.9.9-rc1-r1942


Regards,
Quinn


Best regards,

Quinn Plattel
Senior Network Engineer - BLUETOWN

[phone] - q(a)bluetown.com - Skype ID: dalilai
Per Henrik Lings Allé 4, 3rd Floor - 2100 Copenhagen O - DK - [phone] -
www.bluetown.com

[https://i.imgur.com/ZPkPX8i.png]<https://www.youtube.com/watch?v=AqERoJF…

[Quinn Plattel]

Verbose probe log here:

https://paste.ubuntu.com/26494952/

Regards,
Quinn

On 31/01/18 14:01, Quinn Plattel wrote:
Hi,

Just tried to contact you guys via irc chat.  Here is the transcript:

13:47 -!- Irssi: Join to #flashrom was synced in 1 secs
13:47 < quinn> hello, need help with a failed flash on an Intel Bay Trail
               platform.
13:48 < quinn> Detected flash chip is Winbond W25Q64.W 8192 kB, SPI mapped at
               phy addr 0xff800000
13:50 < quinn> System is an industry pc with model LEC-3030T
13:51 < quinn> Bios made by Aptio.
13:52 < quinn> dmidecode says Vendor is AMI with bios version 5.6.5 and release
               date 05/05/2016
13:52 < quinn> BIOS revision 5.6 according to dmidecode
13:54 < quinn> Re-reading the flash results in same size rom file but filled
               with "ff".
13:55 < quinn> I have the original rom saved.
13:56 < quinn> flashrom shows warning when reading or writing: BIOS region SMM
               protection is enabled!
13:57 < quinn> flashrom version used is v0.9.9-rc1-r1942


Regards,
Quinn



Best regards,

Quinn Plattel
Senior Network Engineer - BLUETOWN

[phone] - q(a)bluetown.com - Skype ID: dalilai
Per Henrik Lings Allé 4, 3rd Floor - 2100 Copenhagen O - DK - [phone] -
www.bluetown.com

[https://i.imgur.com/ZPkPX8i.png]<https://www.youtube.com/watch?v=AqERoJF…

[David Hendricks]

Hi Quinn,

On Wed, Jan 31, 2018 at 5:01 AM, Quinn Plattel <q(a)bluetown.com> wrote:

  13:56 < quinn> flashrom shows warning when
reading or writing: BIOS region
 SMM
                protection is enabled!
Did you have any luck with this? There might be a BIOS setting in the menu
that allows you to disable the SMM lock, and as icon suggested on IRC the
speed racer exploit might also be a feasible workaround.

Another idea might be to try using coreboot on this board and simply not
set the SMM lock bit until you need to do so ;-) There's a decent chance
the Bayley Bay CRB implementation will work, though you may need to do some
customization for your board: https://review.coreboot.org/cgit/coreboot.git
/tree/src/mainboard/intel/bayleybay_fsp