Why do I see HPS boot failures with memory or ECC errors on my Intel® Arria® 10 SoC design? - Why do I see HPS boot failures with memory or ECC errors on my Intel® Arria® 10 SoC design? Description Due to a problem in the Intel® Quartus® Prime Standard and Pro Edition Software, memory errors may be seen during HPS Boot on Intel® Arria® 10 SoC 270 and 320 density devices causing boot to fail. Boot Failures and HPS UART output that may be seen: Data Abort / Hang during SDRAM ECC Scrubbing: DDRCAL: Scrubbing ECC RAM (1024 MiB). #Reboot seen here# SDRAM size check failure: DDR: Running SDRAM size sanity check DDR: SDRAM size check failed! ### ERROR ### Please RESET the board ### Hang when loading Second Stage Boot loader from external flash Trying to boot from SPI #Reboot seen here# SDRAM ECC Double Bit Error when loading Second Stage Boot loader from external flash Resolution A patch is available for u-boot-socfpga v2020.04 to work around this problem. Download the patch and follow the following steps: Update to u-boot-socfpga v2020.04 available from : https://github.com/altera-opensource/u-boot-socfpga See doc/README.socfpga in the u-boot-socfpga tree for the updated flow to import Intel® Quartus® Prime Software design handoff information into u-boot. Apply patch 0001-PATCH-spl-socfpga-Enable-double-peripheral-RBF-confi.patch . Build u-boot-socfpga as normal. Custom Fields values: ['novalue'] Troubleshooting 18012737884 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 21.4 20.3 ['Arria® 10 SX FPGA'] ['novalue'] ['novalue'] ['novalue']