AN 798: Partial Reconfiguration with the Arria 10 HPS

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ID 683034
Date 1/25/2017
Public
Document Table of Contents
Document Table of Contents x
Partial Reconfiguration with the Intel® Arria® 10 HPS
Partial Reconfiguration with the Intel® Arria® 10 HPS x
Advantages of Partial Reconfiguration Scope of This Document Prerequisites for Using This Document Partial Reconfiguration Tools and Methods Arria 10 SoC Partial Reconfiguration Workflow Partial Reconfiguration Limitations Creating the PR Example Design Generating the Example Software Image Loading Partial Reconfiguration Designs Using Linux Important Partial Reconfiguration Terminology Revision History
Prerequisites for Using This Document x
Knowledge Prerequisites Software Tool Prerequisites Hardware Prerequisites
Partial Reconfiguration Tools and Methods x
Hardware Tools and Methods Software Tools and Methods
Hardware Tools and Methods x
Arria 10 SoC Partial Reconfiguration Support Overview of the Arria 10 GHRD
Arria 10 SoC Partial Reconfiguration Workflow x
Hardware Workflow Software Workflow
Creating the PR Example Design x
Qsys Partial Reconfiguration Freeze Logic Importing the GHRD Project Add a Partial Reconfiguration Region to the GHRD Building the Base Revision with the Reconfigurable Design Partition Synthesizing an Alternate Persona Implementing the Alternate Persona Generating the RBF FPGA Image Files Design Handoff to Software Developer
Qsys Partial Reconfiguration Freeze Logic x
PR Freeze Bridge PR Freeze Controller
Add a Partial Reconfiguration Region to the GHRD x
Creating the Partial Reconfiguration Design Adding the PR Region Connecting New Ports in the GHRD Module Instantiation
Generating the Example Software Image x
Overview of Software Image Creation Generating a New Boot Device Tree Creating the Device Tree Overlays
Generating a New Boot Device Tree x
Critical Information in the Default Device Tree Steps to Create a New Device Tree
Loading Partial Reconfiguration Designs Using Linux x
Installing Files on the SD Card Loading and Unloading the Device Tree Overlays
Partial Reconfiguration with the Intel® Arria® 10 HPS

Loading and Unloading the Device Tree Overlays

  1. Boot the SoC Development Kit using the updated SD card.
  2. From the /boot/ directory, run the following commands to load the base static region device tree overlay. This creates the device tree node that can be modified to load and unload the example PR region personas. 
    
root@arria10:~# dtbt -a base_static.dtbo -p /boot
Set dtbo search path to /boot
Applying dtbo: base_static.dtbo
  3. Check the list of applied overlays using the following command. 
    
root@arria10:~# dtbt -l
1 fpga_static_region.dtbo applied /sys/kernel/config/device-tree/overlays/1-base_static.dtbo
  4. Load the default PR region persona using the following command. 
    
root@arria10:~# dtbt -a pr_region_default.dtbo -p /boot
Set dtbo search path to /boot
Applying dtbo: pr_region_default.dtbo
[ 78.934742] fpga_manager fpga0: writing pr_region_default.rbf to SoCFPGA Arria10 FPGA Manager
  5. Check the system ID value using the following command. 
    
root@arria10:~# cat /sys/bus/platform/drivers/altera_sysid/ \
    ff200800.sysid/sysid/id
  6. Unload the default PR region persona and load the alternate persona using the following commands. 
    
root@arria10:~# dtbt -r pr_region_default.dtbo -p /boot
Set dtbo search path to /boot
Removing dtbo: 2-pr_region_default.dtbo

root@arria10:~# dtbt -a pr_region_alt.dtbo -p /boot
Set dtbo search path to /boot
Applying dtbo: pr_region_alt.dtbo
[ 437.905424] fpga_manager fpga0: writing pr_region_alt.rbf to SoCFPGA Arria10 FPGA Manager
  7. Check the system ID value of the newly loaded alternate persona with the following command. 
    
root@arria10:~# cat \
/sys/bus/platform/drivers/altera_sysid/ff200a00.sysid/sysid/id
  8. Finally, remove the PR region alternate persona using the following command. 
    
root@arria10:~# dtbt -r pr_region_alt.dtbo -p /boot
Set dtbo search path to /boot
Removing dtbo: 2-pr_region_alt.dtbo
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