Forum Discussion
Occasional ContributorWhen do we need to customize preloader?
Hi ranran,
Here is an example; for enabling HPS-to-FPGA Bridges from the preloader, the preloader will check the status of the FPGA then automatically enables bridges that are configured in Qsys/platform designer (Standard) and the BSP if the FPGA is configured.
For more information, I reckon you refer to GSRD v13.1 - Programming FPGA from HPS.
Regards.
Regular ContributorHi ranran,
Here is an example; for enabling HPS-to-FPGA Bridges from the preloader, the preloader will check the status of the FPGA then automatically enables bridges that are configured in Qsys/platform designer (Standard) and the BSP if the FPGA is configured.
For more information, I reckon you refer to GSRD v13.1 - Programming FPGA from HPS.
Regards.
Occasional ContributorHi,
I did find more info here : https://rocketboards.org/foswiki/view/Documentation/GSRD131ProgrammingFPGA ,
which state that in order to enable the bridge we need to run:
If the hardware design is utilizing the bridges between HPS and FPGA, and additional command needs to be run in order to enable the bridges:
# run bridge_enable_handoff
But what happens if there is no u-boot ? How then do we enable the bridge ?
Is it that we should use this method only when HPS configures FPGA ?
Does it mean that if both starts individually, then we can enable bridge at preloader ?
Thanks,
ranran
