Hard Processor System Booting User Guide: Agilex™ 5 SoCs

ID 813762
Date 12/20/2024
Public
Document Table of Contents

3.2.4. HPS Boot First - Dual Flash System

In a dual flash system, the SDM flash such as an active serial flash stores the configuration bitstream. The HPS flash such as an SD card stores the HPS SSBL and the rest of the OS files.

Table 8.  Supported Dual Flash Combinations (SDM and HPS)

SDM Flash Type

HPS Flash Type

Active serial/Quad SPI

SD/eMMC or NAND

Depending on the boot stage that performs the FPGA configuration, you have the following options for storing the FPGA core and I/O configuration file:

  • In the HPS flash partition—The SSBL initiates configuration.
  • In the OS file system—The OS initiates configuration.
Figure 10. HPS Boot First - Dual Flash Devices (SDM and HPS)