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CAlex's avatar
CAlex
Icon for Contributor rankContributor
2 years ago

Proper setting for Uboot/SPL

Hi

I want to use FPGA Boot to run my baremetal system on CycloneVsoc board. But the AN709 needs to be updated, for preloader is no longer needed, all custom settings are made by Uboot/SPL settings.

Another issue is that arm-altera-eabi is no longer included in the SOC EDS. So the hex file needed for the OCRAM in FPGA booting can't get done.

I've tried to use the

arm-eabi-objcopy -O ihex --adjust-vma -0xC0000000 uboot-socfpga/spl/u-boot-spl preloader.hex

instead of arm-altera-eabi-objcopy, but the Quartus Warns me that the width and space of the ROM is not enough.

My question is:

1.How to set the Uboot/SPL in order to let the SPL/UBoot know it is boot from FPGA.

2.How to upload the Baremetal image other than SD/MMC? Is there a way to upload the image directly through FPGA?

3. What is the image form needed by this way? I assume it is the same as the SD/MMC Image, which have the following type:

1. P1 root flie (ext3)

2. P2 sys file(fat32)

3. P3 Uboot/SPL file (2A)

4. A new way to achieve hex file needed by the FPGA booting ROM.

Thank you

Alex

Configuration

7 Replies

  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hi


    We sincerely apologize for the inconvenience caused by the delay in addressing your Forum queries. Due to an unexpected back-end issue in our system, your Forum cases, along with others, did not get through as intended. As a result, we have a backlog of cases that we are currently working through one by one.

    Please be assured that we are doing everything we can to resolve this issue as quickly as possible. However, this process will take some time, and we kindly ask for your patience and understanding during this period. The cases will be attended by AE shortly. We appreciate your patience and understanding, and we are committed to providing you with the best support possible.

    Thank you for your understanding.


    Back to your issue, sorry to tell you that the boot from FPGA software support have been removed and we only support the standard flow.

    https://www.rocketboards.org/foswiki/Documentation/BuildingBootloaderCycloneVAndArria10#Cyclone_V_SoC_and_Arria_V_SoC


    Regards

    Jingyang, Teh


    • CAlex's avatar
      CAlex
      Icon for Contributor rankContributor
      2 years ago

      Hi

      when using standard flow,I found that it is hard to set the SPL to what I want to.

      I'm using eMMc as a boot source now, what I want to achieve is that the core run the SPL and then the SPL point to the Baremetal application.

      I use the same bulid flow to build up the SD card image with default SPL settings:

      P3 type: 2A u-boot-spl

      P1 type: Fat32 BM.bin-mkimage.bin

      P2 type: Ext3 Dummy file

      And I use dd to write into the eMMc card, but it failed to boot.

      Is that related to the SPL settings?

      Alex

  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hi


    Yes it would not launch .

    You would need to load the program( .img file) into the ram from the sd card.

    In uboot try the command below:


    //to copy application to the ram address

    load mmc 0:1 \${loadaddr}


    //test to see if the application is loaded successful

    iminfo ${loadaddr}


    //jump to application

    go ${loadaddr}




    • CAlex's avatar
      CAlex
      Icon for Contributor rankContributor
      2 years ago

      Now I'm using USM to communicate with the board, I can visit the emmc on /dev/sda.

      I loaded the image to /dev/sda but BootROM can't find out where SPL was and keep resetting.

      So how should I do to let the BootROM find the SPL?

      What changes need to be done in the SPL setting?

      What changes need to be done in the image making?

      Thank you.

      Alex

  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hi Alex

    Sorry for the slow response.

    What is the USM that you are referring to?

    Usually we do not change the BootROM, did you make changes to the BootROM?

    The BootROM will go to the same location to find the SPL image to be loaded.

  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hi


    Any update on this case?

    For the bootROM it is not possible to change the bootROM for the HPS. It is added on during the configuration.

    The bootROM have been hardcoded to jump to the SPL uboot automatically.


    Regards

    Jingyang, Teh


  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hi


    As we do not receive any response from you on the previous question/reply/answer that we have provided. Please login to ‘https://supporttickets.intel.com/s/?language=en_US’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.



    Regards

    Jingyang, Teh