How can I enable HPS-to-FPGA bridges in U-boot for Arria 10 SOC devices? - How can I enable HPS-to-FPGA bridges in U-boot for Arria 10 SOC devices? Description The HPS to FPGA bridge and Lightweight HPS-to-FPGA bridge can be enabled from U-boot. Before the bridges are enabled, the FPGA portion must enter user mode by loading the core configuration file. U-boot for Arria 10 SOC generated from SOC EDS 16.1 and later contain commands to load FPGA core configuration and enable HPS to FPGA bridges. Resolution To enable the HPS-to-FPGA bridges from U-Boot follow the steps below to enter commands in U-boot command prompt: Depending on boot source, run the appropriate command to load FPGA core configuration file: SD: run core_rbf_prog QSPI: run qspirbfcore_rbf_prog NAND: run nandrbfcore_rbf_prog Run the fpgabr command to enable the HPS-to-FPGA bridges, as follows: fpgabr 1 Custom Fields values: ['novalue'] Troubleshooting FB: 489201; False ['Hard Processor System Arria® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 16.1 ['Arria® 10 SX FPGA'] ['novalue'] ['novalue'] ['novalue']