Why do I sometimes see FPGA configuration from HPS fail in U-Boot/Linux on Agilex™ 7 FPGA devices? - Why do I sometimes see FPGA configuration from HPS fail in U-Boot/Linux on Agilex™ 7 FPGA devices? Description Due to a known problem in Quartus® Prime Pro Edition Software, the HPS IO hash of the Phase 1 bitstream may change if the IO assignments on HPS IO banks or HPS EMIF IO banks are updated. This may cause the Phase 2 bitstream used to load from U-Boot/Linux to be incompatible with the Phase 1 bitstream, resulting in errors during FPGA configuration from HPS. Resolution Altera recommends locking down the HPS IOs and HPS EMIF IOs to avoid unwanted Phase 1 and Phase 2 bitstream incompatibilities. This is scheduled to be fixed in a future release of Quartus® Prime Pro Edition Software. Custom Fields values: ['novalue'] Troubleshooting 18029527156 True ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 24.3.1 19.3 ['Agilex™ 7 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue'] - 2025-06-13

external_document

Resource Type
Support Resources > Knowledge Articles
Source Name
khoros