Linux to/from fpga fabric command line examples

[kikoss]

Hello 

I am running a Linux OS on agilex7 SOC 

I am looking for basic command line that perform the following :

• write / read FPGA register fabric 
• program FPGA fabric with a new SOF file 
• write / read  FPGA DMA fabric 

Any relevant  documentation, or examples for achieving these tasks, would help 

Thx 

Regards 

[JingyangTeh · Accepted solution]

Hi

There is no documentation on the how to.

But in brief the command to access the fpga fabic from linux is using the md or mw command:

https://www.unix.com/man-page/osx/1/md/

https://www.barebox.org/doc/latest/commands/mem/mw.html

To connect the HPS to fabric, there are bridges that connects them. The bridge you are looking at is the H2F bridge:

https://www.intel.com/content/www/us/en/docs/programmable/683567/23-1/bridges-falconmesa-stratix-10.html

To read and write to the FPGA Fabric you will need to access through the H2F bridge window which could be found here:

https://www.intel.com/content/www/us/en/docs/programmable/683567/23-1/bridge-address-space-falconmesa.html

https://www.intel.com/content/www/us/en/programmable/hps/agilex/hps.html

As for the the IPs that are connected to the bridge, you could find the offset from the Address Map in the Platform Designer.

To read and write to the IP you would be h2f bridge + IP offset.

Regards

Jingyang, Teh

[kikoss]

Hello 

Its enough infos for starting 
Thank you very much 

Thx 

[JingyangTeh]

Hi

I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, Please login to ‘https://supporttickets.intel.com/s/?language=en_US’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

Regards

Jingyang, Teh