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Rainwang's avatar
Rainwang
Icon for Contributor rankContributor
3 years ago

how to use separated the FPGA configuration and HPS booting?

As below figure shows, we use the 10AS016 chip, and we have 2 EPCQ flashes on our board, one for HPS booting and the other for FPGA configuration. We stored the FPGA configure file in the FPGA side E...
EBERLAZARE_I_Intel's avatar
EBERLAZARE_I_Intel
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi,


Okay lets go back to your final question, which you mentioned that you "need not reset the HPS again after FPGA config is done" do you mean this on first time boot or at any time after the FPGA config/re-config will be initiate?


Again, the feature for boot HPS from FPGA is not really supported in our latest U-boot. Additionally, it takes time to program the FPGA first, as the FPGA need to be configured first, so that's one of the main cons on doing boot HPS from FPGA. We don't really recommend it.


If you need to have the HPS state the way it is and have interchangeable FPGA file, you can just do the normal booting for A10 QSPI, then do a TFTP in U-boot mode to just update/change the FPGA.itb file, plus you may more flexibility in U-boot:

https://www.rocketboards.org/foswiki/Documentation/BuildingBootloaderCycloneVAndArria10#Arria_10_SoC_45_Boot_from_QSPI


A10 Boot User Guide on Boot ROM:

https://www.intel.com/content/www/us/en/docs/programmable/683735/current/boot-rom-flow.html