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Altera_Forum's avatar
Altera_Forum
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11 years ago

How to create bootable VxWorks SD-Card?

Hey!

I'm very new in this topic and i read a lot to come into it. But i still have some problems.

I have a Arrow SoCkit Cyclone V Board and the goal is, to get a working VxWorks System on it.

I already created a bootloader, that works and i can execute the standard u-boot commands. Now i tried to get the Bootrom of VxWorks started, as I read in a few documentaries and forum posts. But it didn't work yet. I tried to copy the bootrom to a certain adress or to a seperate FAT partition (with a modified bootloader). But it didn't start.

Did I forget something or understand something wrong?

I hope you can help me.

Regards

Kille

5 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    Moving to the new "Other Operating Systems" forum. This is where all non-Linux OS related questions will go moving forward.

  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    Please visit this page and get the zip file under "VxWorks Instructions for SoC EDS 13.1":

    https://www.altera.com/download/soc-eds/rtos-tools.jsp

    That document will walk you through how to boot VxWorks via SD card or QSPI using a modified preloader. The instructions are written for the Altera dev board but they may work for the Arrow board as well, I have not tried that.

    The instructions contain pre-built preloaders that are known to work with the Altera dev board and SD card images that should work as well.

    Instructions for 14.0 are almost ready to be published -- if you are using 14.0 today let me know and I may be able to get you a preview of those instructions.
  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    I haven't used VxWorks bootrom but I have used u-boot to boot vxWorks directly. The default Altera soc u-boot does not include elf file support so you have to enable this and recompile u-boot. Once you have done that you can then boot the vxWorks compiled elf image using the bootvx command.

  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    Also, it's important to know that the preloader requires the next stage bootloader to have a small header on it. The VxWorks bootrom is not built with this header, so you have to use mkimage to add the header to the bootrom.

    The instructions I mentioned show you how to add the header to a VxWorks bootrom binary.
  • Altera_Forum's avatar
    Altera_Forum
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    11 years ago

    @Bevo

    I knew this Document, but the Images/ Files unforthantly don't work for the Arrow Board. Nevertheless I followed the Instructions. I builded my own Preloader with BSP-Editor and made my own SD-Card with FAT-Partition. But the Problem is like above.

    I tried to use u-boot commands to start the bootrom.bin manually. I've loaded it so several adresses in cache and tried to execute them with bootm to this adress. The error is: "Wrong Image Type for bootm command - ERROR: can't get kernel image!"

    Thats why I tried to find a way to add the bootvx command as @ngoodger told. But I can't find out how to do that.

    @ngoodger How you added the command. I added "#define CONFIG_CMD_ELF" to "config_cmd_default.h" and recompiled my whole preloader, but the command didn't appear. Can you give me some further advices?