Re: [microblaze-uclinux] using icap driver

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

LEROY Jean-Loup wrote:

> I add J.W’s Icap driver to the petalinux kernel. I successfully build
> the kernel and then download it to my ML402 board.
> 
> Then, what do I have to do? Do I have to load hwicap module with insmod
> command or something else?
> 
> I can’t see /dev/icap node.

cat /proc/devices - or /proc/misc - it will tell you the major/minor
number of the icap driver.  Or, look in the driver source itself.

Then edit the file

software/petalinux-dist/vendors/PetaLogix/common/common.mak

and add a device node in the manner similar to the other ones there

it will be something like

DEVICES +=      icap,c,MAJ,MIN

replacing MAJ/MIN with the correct major and minor numbers respectively.

Rebuild the romfs and image targets, and now your system will boot with
a dev node for the icap.

Be aware that the ICAP has changed with the V4 FPGA family - I have no
idea if the driver will still work.  You should subscribe to the
partial-reconfig list (same server, just a different list), and ask there.

I no longer use the driver, but I believe some people on the
partial-reconfig list are.

If you haven't already, you should read the paper I wrote about the
driver, it will give you a lot more info (reprinted at linuxdevices.com
a couple of years ago):

http://linuxdevices.com/articles/AT7708331794.html

Regards,

John


___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/