Linux driver for Xilinx ICAP

[John Linn]

Hi Ming,

 

I’m copying our local expert on this core to see his thoughts as I don’t actively use this core myself.

 

Thanks,

John

 

________________________________

From: linuxppc-embedded-bounces+john.linn=xilinx.com at ozlabs.org [mailto:linuxppc-embedded-bounces+john.linn=xilinx.com at ozlabs.org] On Behalf Of MingLiu
Sent: Wednesday, October 08, 2008 7:48 AM
To: linuxppc-embedded at ozlabs.org
Subject: Linux driver for Xilinx ICAP

 

Dear all,
Has someone manage to use the driver for the Xilinx xps_hwicap core to reconfigure bitstreams? I have enabled the driver in Linux configuration (version 2.6.24 from Xilinx tree). However I failed to use it to reconfigure bitstreams. The operations are listed as follows:
 
# cp partial.bit /dev/icap0
#
 
No error information is shown, however the partial bitstream is not successfully configured. I checked /proc/devices and the device "icap" has been successfully registered with the major of 259. But in /proc/interrupts, I didn't find any matching entry of the interrupt for icap core. I tried to reconfigure the PR module with JTAG, and my design works well. 
 
Any hints for this problem? Is the problem on the interrupt? Thanks so much if someone can help me. 
 
BR
Ming

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