[partial-reconfig] opb_xhwicap device

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi folks,

Just a ping to reassure recent subscribers that there is in fact a 
mailing list here, it's just not very active at the moment! :)

One thing that might be of interest - as of EDK6.2, Xilinx have released 
their HW core and low level drivers to interface microblaze to the ICAP 
block - it's called opb_xhwicap or similar.

In conjunction with the microblaze uClinux project, I've written a 
(uC)linux device driver that wraps around the opb_xhwicap core.  Thus I 
have microblaze uClinux systems with a /dev/icap device node, into which 
I can pipe partial bitstreams and so on, to achieve dynamic 
self-reconfiguration.  Some preliminary results of this work will be 
presented at the ERSA conference next month in LAs Vegas.

I haven't had a lot of time to look at it lately (the mechanics of 
generating partial bitstreams put me off), but if anyone is interested 
I'd be happy to share my driver code.

Note that this same driver will also work on V2Pro/PPC-based Linux 
platforms as well...

Cheers,

John
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