[Cryptech Tech] FPGA issues (Was: Re: Current sync problem)

[Joachim Strömbergson]

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Aloha!

Basil Dolmatov wrote:
> That's an excellent description.
> 
> Could you add several links to repos and board schematics to speed
> up feeding people with information, considering that they are
> completely ignorant about current environment now.

I can at least try. ;-)

All available info on the Novena can be found here at these links. The
second and third links are for schematics

http://www.kosagi.com/w/index.php?title=Novena_Main_Page
http://www.kosagi.com/w/index.php?title=Novena_PVT_Design_Source
http://bunniefoo.com/novena/pvt2_release/SCH-novena_pvt2.PDF

The CPU on the Novena is an i.MX6 from Freescale. More specifically a
i.MX6Q.
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX6Q

Section 4.3 in the data sheet describes the EIM:
http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6DQCEC.pdf?fasp=1&WT_TYPE=Data%20Sheets&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation&fileExt=.pdf

Rob pointed to an article that describes some of the issues with the
EIM, albeit on the i.MX5, not i.MX6:

http://billauer.co.il/blog/2011/10/imx51-imx-weim-freescale-arm-bus/

Our efforts at implementing the hashes with eim-access on the Novena can
be found in novena_fpga.v in src/rtl for top level module with clock
implementation.

http://wiki.cryptech.is/browser/core/novena_eim
http://wiki.cryptech.is/browser/core/novena_eim/src/rtl/novena_fpga.v


- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
========================================================================
 Joachim Strömbergson          Secworks AB          joachim at secworks.se
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