How to organize data stream through AMBA bus between FPGA and HPS (with Linux)?

[Altera_Forum]

Hi everybody, 

I'm currently looking into how to transfer data between HPS and FPGA via AMBA AXI-interface. HPS is supposed to run Linux. Is it possible to do it using board support package provided by Altera (Golden System Reference Design, corresponding Linux device drivers, device-tree, etc.) or I need to write my own device driver to interact with AXI-interface?

[Altera_Forum]

Hi, 

 First read Cyclone V SoC device handbook especially on HPS-FPGA bridges. Then examine a simpler Examples in the installed EDS_SOC (\embedded\examples). Use LW_HPS-FPGA bridge and GPIO Linux example. A more complex design is the VipDemo for Arrow SoCKit (run linux, and use bridges between FPGA-HPS portions). http://rocketboards.org/foswiki/projects/sockitvideoipvipreferencedesign  There are full descriptions about functions under your installed EDS_SOC directory: SoCAL: as abstraction layer for SoC (similar to Nios's HAL) HWLib: Hardware Libraries Altera HWLib and SOCAL API pages:   <altera_installation_directory>/embedded/ip/altera/hps/altera_hps/doc/hwmgr/html/index.html  <altera_installation_directory>/embedded/ip/altera/hps/altera_hps/doc/socal/html/index.html  I hope these helps to start your work.  best regards  ZS.V.