This chapter guides through the tasks which have to be done inside the Intel SoC Embedded Development Suite. As mentioned in page "Board bring-up overview for TEI0022" this step is for preloader and bootloader generation which should be done in the following three sections:
- Preloader/Bootloader generation
- Device Tree generation
The section "Preparation" describes preparing steps which are necessary for the generation of the preloader and the bootloader which is described in section "Preloader/Bootloader generation". After that in section "Device Tree generation" the steps to create the device tree blob is explained.
While Intel Quartus Prime project compilation, described on page Intel Quartus Prime Project, folder "hps_isw_handoff" is created which is now needed to generate via the bsp-editor further output for preloader and bootloader generation. To do the preparation, follow the following guide:
- Start the SoC EDS Shell as administrator. To do that navigate to C:\intelFPGA\18.1\embedded\ , right click on the file "Embedded_Command_Shell.bat", and select "Run as administrator". Click Yes in the window "User Account Control".
- In the opened shell start the bsp-editor, as visible in the next figure, via: bsp-editor.exe
- In the opened bsp-editor select File → New HPS BSP...
- In the opened New BSP dialogue click onto ... and select the PlatformEditorHPS_hps_0 folder inside the hps_isw_handoff folder
- After that, click Open in this dialogue and OK in the previous dialogue.
- Now, in the bsp-editor, the preloader should be configured. Select only BOOT_FROM_SDMMC as BOOT_FROM_-parameter in the right window under the spl.boot header.
- Select FAT_SUPPORT.
- Select 1 as FAT_BOOT_PARTITION.
- Select u-boot.img as FAT_LOAD_PAYLOAD_NAME.
- Then, generate the output via clicking the Generate button.
- After generation, an information like Finished generation BSP files. Total time taken = ... seconds is displayed in the information tab. The folder software in the project path should now be available.
- Close the bsp-editor.
After this preparation, it is possible to generate the preloader and the bootloader inside the shell while following the guide:
- Change into folder .../software/spl_bsp inside the project folder with the change directory command cd. For example: cd Project/software/spl_bsp
- Clean the folder via running /usr/bin/make clean
- Configure the build process via /usr/bin/make config which generates the folder .../software/spl_bsp/uboot-socfpga.
- Generate the preloader via /usr/bin/make which generates the file .../software/spl_bsp/preloader-mkpimage.bin.
- Generate the bootloader via /usr/bin/make uboot which generates the image .../software/spl_bsp/uboot-socfpga/u-boot.img.
- If the make process ends with an error, try to rerun /usr/bin/make uboot until there is no error and the output is generated.
After that, the folder .../software/spl_bsp/ should look like the following figure.
The folder .../software/spl_bsp/uboot-socfpga should contain the files shown in the next figure.
Device Tree generation
The device tree generation is a crucial part to tell the linux kernel which hardware has to be handled. To generate the device tree blob follow this guide:
- For device tree generation the Golden Hardware Reference Design file .../intelFPGA/18.1/embedded/examples/hardware/cv_soc_devkit_ghrd/hps_common_board_info.xml is needed. Therefore, copy this file into the project folder where the software folder, the output_files folder, ... are. This file contains information regarding the board which can be adapted, if necessary.
- Generate the device tree via the shell command: sopc2dts --input <Project Name>.sopcinfo --output socfpga.dtb --type dtb --board hps_common_board_info.xml --bridge-removal all --clocks
- The output in the following listing can be ignored.