Hard Processor System Booting User Guide: Agilex™ 5 SoCs

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ID 813762
Date 12/20/2024
Public
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™ 5 SoC FPGA Boot Flow 8. Document Revision History for the Hard Processor System Booting User Guide: Agilex™ 5 SoCs
1. Introduction x
1.1. Glossary 1.2. Agilex™ 5 SoC FPGA 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
4.2. 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. Configuring the FPGA Fabric from Linux* 6.3. FPGA Partial Reconfiguration from Linux* 6.4. Hardware Project Compatibility in HPS Boot First Mode
6.4. Hardware Project Compatibility in HPS Boot First Mode x
6.4.1. HPS IO Hash Compatibility 6.4.2. HPS IO Hash Handling as related to the HPS EMIF IO Bank(s)
6.4.2. HPS IO Hash Handling as related to the HPS EMIF IO Bank(s) x
6.4.2.1. IO Configuration Differences on non-HPS EMIF IPs 6.4.2.2. Pin Location Differences 6.4.2.3. PLL Differences 6.4.2.4. Clock Spine Differences 6.4.2.5. HPS IO Hash Mismatch Troubleshooting Examples for HPS EMIF IOs
6.4.2.4. Clock Spine Differences x
6.4.2.4.1. Agilex™ 5-Specific Clock Spine Differences 6.4.2.4.2. Register Packing Differences
7. Debugging the Agilex™ 5 SoC FPGA Boot Flow x
7.1. Reset 7.2. Debugging the HPS Bootloader Using the Arm* Development Studio for Intel® SoC FPGA (Arm* DS for Intel® SoC FPGA) Edition
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™ 5 SoC FPGA Boot Flow
8. Document Revision History for the Hard Processor System Booting User Guide: Agilex™ 5 SoCs

5.1. U-Boot ATF Linux* Boot

The following figure shows the overview of the HPS Boot Flow using a U-Boot as HPS Bootloader to boot to the Linux* OS.

Figure 37. The U-Boot ATF Linux* Boot Flow

The boot flow is described in steps below:

  1. The Configuration Management Firmware (CMF), which is a part of the signed configuration bitstream, running on the SDM loads the FSBL, which is U-Boot SPL, into HPS On-Chip RAM and then bring the HPS boot core out from reset.
  2. The U-Boot SPL loads the SSBL, which is ATF BL31 and U-Boot proper (SSBL), into DDR.
  3. The U-Boot SPL jumps to the ATF BL31.
  4. The ATF BL31 sets up the GIC, EL3 environment, and initializes the PSCI services. PSCI services in ATF remain active or available once ATF jumps to U-Boot.
  5. The ATF BL31 jumps to the U-Boot proper.
  6. The U-Boot proper loads the Linux* OS into the DDR.
  7. The U-Boot jumps to the Linux* OS.
Note: The U-Boot proper and the Linux* OS can access the SDM FPGA features through ATF BL31 through the Arm* Secure Monitor Call (SMC).

For information on Exception Levels, refer to Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs.

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