Re: [partial-reconfig] opb_xhwicap device

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Roberto,

Roberto Farina wrote:

> Of course we're interested, otherwise we'd be not subscribed to this ml ;)

I'll need to give some thought to how I distribute this driver - it sits 
on top of Xilinx's low level driver, and I'd need their permission to 
redistribute my hacked version of their code.  So far they've been 
pretty good about folding their low-level drivers into the GPL'd kernel, 
but I can't make any assumptions in that regard.

Worst case I'll release it as a patch, so users can copy their local 
copy of the Xilinx driver into the Linux tree then apply my patch.  A 
bit messy, but cleaner from a legal perspective.

I'll try to dress it up and get it out next week.

 > Even if there're still several aspects related to the hw platform for
 > reconfig that I must explore...

Yep - for one thing it's clear the V2MB1000 boards were not designed 
with partial reconfig in mind - the IOs are scattered all around the 
chip, making it quite hard to do meaningful column-based partitioning, 
and still have access to all of the important stuff (from uClinux 
perspective, like DDR, ethernet etc).  Unless you restort to using 
bridging signals across the reconfigurable module areas...

Cheers,

John
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