Hard Processor System Booting User Guide: Agilex™ 3 and Agilex™ 5 SoCs

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ID 813762
Date 5/09/2025
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. FPGA Configuration First Mode 3. HPS Boot First Mode 4. Creating the Configuration Files 5. HPS Boot Flows 6. Configuring the FPGA Fabric from HPS Software 7. Debugging the Agilex™ 3 and Agilex™ 5 SoC Boot Flow 8. Document Revision History for the Hard Processor System Booting User Guide: Agilex™ 3 and Agilex™ 5 SoCs
1. Introduction x
1.1. Glossary 1.2. Agilex™ 3 and Agilex™ 5 SoC Boot Overview
2. FPGA Configuration First Mode x
2.1. Boot Flow Overview for FPGA Configuration First Mode 2.2. System Layout for FPGA Configuration First Mode
2.1. Boot Flow Overview for FPGA Configuration First Mode x
2.1.1. Power-On Reset (POR) 2.1.2. Secure Device Manager 2.1.3. First-Stage Bootloader 2.1.4. Second-Stage Bootloader 2.1.5. Operating System 2.1.6. Application
2.2. System Layout for FPGA Configuration First Mode x
2.2.1. External Configuration Host Only 2.2.2. External Configuration Host with HPS Flash 2.2.3. Single SDM Flash 2.2.4. FPGA Configuration First - Dual Flash System
3. HPS Boot First Mode x
3.1. Boot Flow Overview 3.2. System Layout for HPS Boot First Mode
3.1. Boot Flow Overview x
3.1.1. Power-On Reset (POR) 3.1.2. Secure Device Manager 3.1.3. First-Stage Bootloader 3.1.4. Second-Stage Bootloader 3.1.5. Operating System 3.1.6. Application
3.2. System Layout for HPS Boot First Mode x
3.2.1. External Configuration Host Only 3.2.2. External Configuration Host with HPS Flash 3.2.3. Single SDM Flash 3.2.4. HPS Boot First - Dual Flash System
4. Creating the Configuration Files x
4.1. Overview 4.2. Quartus® Prime Hardware Project Compilation 4.3. Bootloader Software Compilation 4.4. Programming File Generator 4.5. Configuration over JTAG 4.6. Configuration from QSPI 4.7. Configuration over AVST 4.8. Configuration via Protocol 4.9. Remote System Update 4.10. Partial Reconfiguration 4.11. Preserving SDRAM Content across HPS Resets for Agilex™ 5 Devices 4.12. QSPI Controller Ownership Selection Impact on the HPS Software
4.2. Quartus® Prime Hardware Project Compilation x
4.2.1. Device and Pin Options 4.2.2. Platform Designer Options 4.2.3. Generation of Debug HPS FSBL from Hardware Design Build
4.5. Configuration over JTAG x
4.5.1. FPGA Configuration First 4.5.2. HPS Boots First
4.6. Configuration from QSPI x
4.6.1. Supported QSPI Devices 4.6.2. FPGA Configuration First 4.6.3. HPS Boot First
4.6.2. FPGA Configuration First x
4.6.2.1. Creating Configuration Files from Command Line 4.6.2.2. Creating Configuration Files Using Graphical Interface
4.6.3. HPS Boot First x
4.6.3.1. Creating Configuration Files from Command Line 4.6.3.2. Creating Configuration Files Using Graphical Interface
4.7. Configuration over AVST x
4.7.1. FPGA Configuration First 4.7.2. HPS Boot First
4.7.1. FPGA Configuration First x
4.7.1.1. Creating Configuration Files from Command Line 4.7.1.2. Creating Configuration Files Using Graphical Interface
4.7.2. HPS Boot First x
4.7.2.1. Creating Configuration Files from Command Line 4.7.2.2. Creating Configuration Files Using Graphical Interface
4.8. Configuration via Protocol x
4.8.1. Creating Configuration Files from Command Line 4.8.2. Creating Configuration Files Using Graphical Interface
4.11. Preserving SDRAM Content across HPS Resets for Agilex™ 5 Devices x
4.11.1. Data Retention Mechanism Flow 4.11.2. Setting to Enable the Data Retention Mechanism 4.11.3. Preserving Data in SDRAM Across Reset Examples
5. HPS Boot Flows x
5.1. U-Boot ATF Linux* Boot 5.2. ATF Linux Boot 5.3. ATF Zephyr* Boot
6. Configuring the FPGA Fabric from HPS Software x
6.1. Configuring the FPGA Fabric from U-Boot 6.2. Hardware Project Compatibility in HPS Boot First Mode
6.2. Hardware Project Compatibility in HPS Boot First Mode x
6.2.1. HPS IO Hash Compatibility 6.2.2. HPS IO Hash Handling as related to the HPS EMIF IO Bank(s)
6.2.2. HPS IO Hash Handling as related to the HPS EMIF IO Bank(s) x
6.2.2.1. IO Configuration Differences on non-HPS EMIF IPs 6.2.2.2. Pin Location Differences 6.2.2.3. PLL Differences 6.2.2.4. Clock Spine Differences 6.2.2.5. HPS IO Hash Mismatch Troubleshooting Examples for HPS EMIF IOs
6.2.2.4. Clock Spine Differences x
6.2.2.4.1. Agilex™ 5 -Specific Clock Spine Differences 6.2.2.4.2. Register Packing Differences
7. Debugging the Agilex™ 3 and Agilex™ 5 SoC Boot Flow x
7.1. Reset 7.2. Debugging the HPS Bootloader
7.1. Reset x
7.1.1. HPS Reset Pin 7.1.2. L4 Watchdog Timer 0
1. Introduction
2. FPGA Configuration First Mode
3. HPS Boot First Mode
4. Creating the Configuration Files
5. HPS Boot Flows
6. Configuring the FPGA Fabric from HPS Software
7. Debugging the Agilex™ 3 and Agilex™ 5 SoC Boot Flow
8. Document Revision History for the Hard Processor System Booting User Guide: Agilex™ 3 and Agilex™ 5 SoCs

4.3. Bootloader Software Compilation

Altera supports the following bootloaders:

  • U-Boot
  • Arm* Trusted Firmware
Refer to the following GitHub pages for examples on how to build bootloaders and boot to Linux:
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