Intel® Agilex™ Hard Processor System Remote System Update User Guide

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ID 683184
Date 7/13/2022
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Document Table of Contents
Document Table of Contents x
1. Overview 2. Use Cases 3. Quad SPI Flash Layout 4. Intel® Quartus® Prime Software and Tool Support 5. Software Support 6. Flash Corruption - Detection and Recovery 7. Remote System Update Example 8. Version Compatibility Considerations 9. Using RSU with HPS First A. Configuration Flow Diagrams B. RSU Status and Error Codes C. U-Boot RSU Reference Information D. LIBRSU Reference Information E. Combined Application Images 10. Document Revision History for the SoC Remote System Update User Guide
1. Overview x
1.1. Features 1.2. System Components 1.3. Glossary
2. Use Cases x
2.1. Manufacturing 2.2. Application Image Boot 2.3. Factory Image Boot 2.4. Modifying the List of Application Images 2.5. Querying RSU Status 2.6. Loading a Specific Image 2.7. Protected Access to Flash 2.8. Remote System Update Watchdog 2.9. RSU Notify 2.10. Updating the Factory Image 2.11. Updating the Decision Firmware 2.12. Retrying when Configuration Fails 2.13. Querying the Decision Firmware Version
3. Quad SPI Flash Layout x
3.1. High Level Flash Layout 3.2. Detailed Quad SPI Flash Layout 3.3. Decision Firmware Data Max Retry Information 3.4. Firmware Version Information
3.1. High Level Flash Layout x
3.1.1. Standard (non-RSU) Image Layout in Flash 3.1.2. RSU Image Layout in Flash – SDM Perspective 3.1.3. RSU Image Layout – Your Perspective
3.2. Detailed Quad SPI Flash Layout x
3.2.1. RSU Image Sub-Partitions Layout 3.2.2. Sub-Partition Table Layout 3.2.3. Configuration Pointer Block Layout 3.2.4. Application Image Layout
4. Intel® Quartus® Prime Software and Tool Support x
4.1. Intel® Quartus® Prime Pro Edition Software 4.2. Programming File Generator 4.3. Intel® Quartus® Prime Programmer 4.4. Supported QSPI Flash Devices
4.1. Intel® Quartus® Prime Pro Edition Software x
4.1.1. Selecting Factory Load Pin 4.1.2. Enabling HPS Watchdog to Trigger RSU 4.1.3. Setting the Max Retry Parameter
4.2. Programming File Generator x
4.2.1. Programming File Generator File Types 4.2.2. Bitswap Option
5. Software Support x
5.1. SDM RSU Support 5.2. Arm Trusted Firmware Support 5.3. U-Boot RSU Support 5.4. Linux* RSU Support
5.3. U-Boot RSU Support x
5.3.1. U-Boot RSU APIs 5.3.2. U-Boot RSU Commands
5.4. Linux* RSU Support x
5.4.1. Intel® Service Driver 5.4.2. Intel® RSU Driver 5.4.3. LIBRSU Library 5.4.4. RSU Client
6. Flash Corruption - Detection and Recovery x
6.1. Decision Firmware 6.2. Decision Firmware Data 6.3. Configuration Pointer Block 6.4. Sub-Partition Table 6.5. Application Image 6.6. Factory Image 6.7. Example Maintenance Procedure
6.7. Example Maintenance Procedure x
6.7.1. Maintenance Procedure
6.7.1. Maintenance Procedure x
6.7.1.1. Recover Decision Firmware Procedure
7. Remote System Update Example x
7.1. Prerequisites 7.2. Building RSU Example Binaries 7.3. Flashing the Binaries 7.4. Exercising U-Boot RSU Commands 7.5. Exercising the RSU Client
7.2. Building RSU Example Binaries x
7.2.1. Setting up the Environment 7.2.2. Building the Hardware Projects 7.2.3. Building Arm* Trusted Firmware 7.2.4. Building U-Boot 7.2.5. Creating the Initial Flash Image 7.2.6. Creating the Application Image 7.2.7. Creating the Factory Update Image 7.2.8. Creating the Decision Firmware Update Image 7.2.9. Building Linux* 7.2.10. Building ZLIB 7.2.11. Building LIBRSU and RSU Client 7.2.12. Building the Root File System 7.2.13. Building the SD Card
7.3. Flashing the Binaries x
7.3.1. Flashing the Initial RSU Image to QSPI 7.3.2. Writing the SD Card Image
7.4. Exercising U-Boot RSU Commands x
7.4.1. Using U-Boot to Perform Basic Operations 7.4.2. Watchdog and Max Retry Operation 7.4.3. Updating the Factory Image Using U-Boot 7.4.4. Fallback on Flash Corruption of Application Images 7.4.5. Additional Flash Corruption Detection and Recovery
7.4.5. Additional Flash Corruption Detection and Recovery x
7.4.5.1. Corrupted Decision Firmware 7.4.5.2. Corrupted Decision Firmware Data 7.4.5.3. Corrupted Configuration Pointer Block 7.4.5.4. Corrupted Sub-Partition Table
7.5. Exercising the RSU Client x
7.5.1. Using the RSU Client to Perform Basic Operations 7.5.2. Watchdog Timeout and max retry Operation 7.5.3. Updating the Factory Image Using the RSU Client 7.5.4. Fallback on Flash Corruption of Application Images 7.5.5. Additional Flash Corruption Detection and Recovery
7.5.5. Additional Flash Corruption Detection and Recovery x
7.5.5.1. Corrupted Decision Firmware 7.5.5.2. Corrupted Decision Firmware Data 7.5.5.3. Corrupted Configuration Pointer Block 7.5.5.4. Corrupted Sub-Partition Table
8. Version Compatibility Considerations x
8.1. Component Versions 8.2. Component Interfaces 8.3. Component Version Compatibility 8.4. Using Multiple Intel® Quartus® Prime Software Versions for Bitstreams 8.5. Updating U-Boot to Support Different SSBL per Bitstream
8.5. Updating U-Boot to Support Different SSBL per Bitstream x
8.5.1. Using Multiple SSBLs with SD/MMC 8.5.2. Using Multiple SSBLs with QSPI 8.5.3. U-Boot Source Code Details
9. Using RSU with HPS First x
9.1. Update Hardware Designs to use HPS First 9.2. Creating Initial Flash Image for HPS First 9.3. Creating Application and Update Images for HPS First
A. Configuration Flow Diagrams x
A.1. Load Image on Power Up or nConfig Flow A.2. Try Loading Image Process A.3. Request Specific Image Flow A.4. Configure after Image Failure Process A.5. Watchdog Timeout Flow
C. U-Boot RSU Reference Information x
C.1. Configuration Parameters C.2. Error Codes C.3. Using U-Boot RSU Without a Valid SPT or CPB C.4. Macros C.5. Data Types C.6. Functions C.7. RSU U-Boot Commands
C.1. Configuration Parameters x
C.1.1. rsu_protected_slot C.1.2. rsu_log_level C.1.3. rsu_spt_checksum
C.5. Data Types x
C.5.1. rsu_slot_info C.5.2. rsu_status_info
C.6. Functions x
C.6.1. rsu_init C.6.2. rsu_exit C.6.3. rsu_slot_count C.6.4. rsu_slot_by_name C.6.5. rsu_slot_get_info C.6.6. rsu_slot_size C.6.7. rsu_slot_priority C.6.8. rsu_slot_erase C.6.9. rsu_slot_program_buf C.6.10. rsu_slot_program_factory_update_buf C.6.11. rsu_slot_program_buf_raw C.6.12. rsu_slot_verify_buf C.6.13. rsu_slot_verify_buf_raw C.6.14. rsu_slot_enable C.6.15. rsu_slot_disable C.6.16. rsu_slot_load C.6.17. rsu_slot_load_factory C.6.18. rsu_slot_rename C.6.19. rsu_slot_delete C.6.20. rsu_slot_create C.6.21. rsu_status_log C.6.22. rsu_notify C.6.23. rsu_clear_error_status C.6.24. rsu_reset_retry_counter C.6.25. rsu_dcmf_version C.6.26. rsu_max_retry C.6.27. rsu_dcmf_status C.6.28. rsu_create_empty_cpb C.6.29. rsu_restore_cpb C.6.30. rsu_save_cpb C.6.31. rsu_restore_spt C.6.32. rsu_save_spt C.6.33. rsu_running_factory
C.7. RSU U-Boot Commands x
C.7.1. dtb C.7.2. list C.7.3. slot_by_name C.7.4. slot_count C.7.5. slot_disable C.7.6. slot_enable C.7.7. slot_erase C.7.8. slot_get_info C.7.9. slot_load C.7.10. slot_load_factory C.7.11. slot_priority C.7.12. slot_program_buf C.7.13. slot_program_buf_raw C.7.14. slot_program_factory_update_buf C.7.15. slot_rename C.7.16. slot_delete C.7.17. slot_create C.7.18. slot_size C.7.19. slot_verify_buf C.7.20. slot_verify_buf_raw C.7.21. status_log C.7.22. update C.7.23. notify C.7.24. clear_error_status C.7.25. reset_retry_counter C.7.26. display_dcmf_version C.7.27. display_dcmf_status C.7.28. display_max_retry C.7.29. restore_spt C.7.30. save_spt C.7.31. create_empty_cpb C.7.32. restore_cpb C.7.33. save_cpb C.7.34. check_running_factory
D. LIBRSU Reference Information x
D.1. Configuration File D.2. Error Codes D.3. Using LIBRSU Without a Valid SPT or CPB D.4. Macros D.5. Data Types D.6. Functions D.7. RSU Client Commands
D.5. Data Types x
D.5.1. rsu_slot_info D.5.2. rsu_status_info D.5.3. rsu_data_callback
D.6. Functions x
D.6.1. librsu_init D.6.2. librsu_exit D.6.3. rsu_slot_count D.6.4. rsu_slot_by_name D.6.5. rsu_slot_get_info D.6.6. rsu_slot_size D.6.7. rsu_slot_priority D.6.8. rsu_slot_erase D.6.9. rsu_slot_program_buf D.6.10. rsu_slot_program_factory_update_buf D.6.11. rsu_slot_program_file D.6.12. rsu_slot_program_factory_update_file D.6.13. rsu_slot_program_buf_raw D.6.14. rsu_slot_program_file_raw D.6.15. rsu_slot_verify_buf D.6.16. rsu_slot_verify_file D.6.17. rsu_slot_verify_buf_raw D.6.18. rsu_slot_verify_file_raw D.6.19. rsu_slot_program_callback D.6.20. rsu_slot_program_callback_raw D.6.21. rsu_slot_verify_callback D.6.22. rsu_slot_verify_callback_raw D.6.23. rsu_slot_copy_to_file D.6.24. rsu_slot_enable D.6.25. rsu_slot_disable D.6.26. rsu_slot_load_after_reboot D.6.27. rsu_slot_load_factory_after_reboot D.6.28. rsu_slot_rename D.6.29. rsu_slot_delete D.6.30. rsu_slot_create D.6.31. rsu_status_log D.6.32. rsu_notify D.6.33. rsu_clear_error_status D.6.34. rsu_reset_retry_counter D.6.35. rsu_dcmf_version D.6.36. rsu_max_retry D.6.37. rsu_dcmf_status D.6.38. rsu_save_spt D.6.39. rsu_restore_spt D.6.40. rsu_save_cpb D.6.41. rsu_create_empty_cpb D.6.42. rsu_restore_cpb D.6.43. rsu_running_factory
D.7. RSU Client Commands x
D.7.1. count D.7.2. list D.7.3. size D.7.4. priority D.7.5. enable D.7.6. disable D.7.7. request D.7.8. request-factory D.7.9. erase D.7.10. add D.7.11. add-factory-update D.7.12. add-raw D.7.13. verify D.7.14. verify-raw D.7.15. copy D.7.16. log D.7.17. notify D.7.18. clear-error-status D.7.19. reset-retry-counter D.7.20. display-dcmf-version D.7.21. display-dcmf-status D.7.22. display-max-retry D.7.23. create-slot D.7.24. delete-slot D.7.25. restore-spt D.7.26. save-spt D.7.27. create-empty-cpb D.7.28. restore-cpb D.7.29. save-cpb D.7.30. check-running-factory D.7.31. help
E. Combined Application Images x
E.1. Creating the Combined Application Image E.2. Using the Combined Application Image
1. Overview
2. Use Cases
3. Quad SPI Flash Layout
4. Intel® Quartus® Prime Software and Tool Support
5. Software Support
6. Flash Corruption - Detection and Recovery
7. Remote System Update Example
8. Version Compatibility Considerations
9. Using RSU with HPS First
A. Configuration Flow Diagrams
B. RSU Status and Error Codes
C. U-Boot RSU Reference Information
D. LIBRSU Reference Information
E. Combined Application Images
10. Document Revision History for the SoC Remote System Update User Guide

5.4.2. Intel® RSU Driver

The Intel® RSU driver exports the RSU services using the sysfs interface. The source code is located in the drivers/firmware/stratix10-rsu.c file.

The default kernel configuration defines CONFIG_INTEL_STRATIX10_RSU=m which means it is configured as a loadable module which needs to be loaded with insmod. For information about how to use this driver, refer to the Exercising the RSU Client section, located in the LIBRSU Reference Information appendix.

The driver offers its services through the following sysfs files located in the /sys/devices/platform/stratix10-rsu.0 folder. This path is a configurable parameter for LIBRSU. For more information, refer to the Configuration File section, located in the LIBRSU Reference Information appendix.

Table 10.  SysFS Entries for Intel® RSU Driver
File R/W Description
current_image RO Location of currently running image in SDM QSPI flash.
fail_image RO Location of failed image in SDM QSPI flash.
error_details RO Opaque error code, with no meaning to users.
error_location RO Location of error within the image that failed.
state RO State of the RSU system.
version RO Version of the RSU system.
notify WO Used to notify SDM of the HPS software execution stage, also for clearing the error status, and resetting the retry counter.
retry_counter RO Current value of the retry_counter, indicating how many times the current image retries to be loaded. A value of zero means this is the first time.
reboot_image WO Address of image to be loaded on next reboot command.
dcmf0 RO Decision firmware copy 0 version information
dcmf1 RO Decision firmware copy 1 version information
dcmf2 RO Decision firmware copy 2 version information
dcmf3 RO Decision firmware copy 3 version information
dcmf0_status RO Decision firmware copy 0 status. A value of zero means the copy is fine, anything else means the copy is corrupted.
dcmf1_status RO Decision firmware copy 1 status. A value of zero means the copy is fine, anything else means the copy is corrupted.
dcmf2_status RO Decision firmware copy 2 status. A value of zero means the copy is fine, anything else means the copy is corrupted.
dcmf3_status RO Decision firmware copy 3 status. A value of zero means the copy is fine, anything else means the copy is corrupted.
max_retry RO Value of max_retry option, read from decision firmware data section in flash.
For more information, refer to the RSU Status and Error Codes and Decision Firmware Version Information sections.
Note: This information is provided as reference only, as using the RSU driver directly is not recommended or supported. Instead, use the LIBRSU or RSU client directly to perform the RSU tasks.
Note: Linux* is a rapidly changing community project. The information from this section is valid for Linux kernel version 5.4.114-lts, and may change again in the future.
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