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DM35x UBL with SD support

JOSE MARCHETTI
Prodigy 80 points

Hi guys,

The system I am working on will NOT have any nand or nor flash, it will have only SD so I need to boot from SD and launch u-boot from SD as well. I see u-boot has a tool called uflash that is part of this solution, it can create a SD with u-boot and UBL and make it bootable, but I can't find the matching UBL.

The UBL I got and played with only supports launching u-boot from NAND/NOR flash, I need the UBL that is capable of launching u-boot from SD.

The tool from Constantin deceived me for a while in thinking that was what I needed, but after careful reading I saw the tool actually is used to flash UBL/u-boot into NAND/NOR.

I guess this tool could be changed to do the job, but it appears this UBL was already developed, at least this is the suggestion I get from seeing uflash too.

 

Any input would be appreciated,

Thanks,

  • 0
    TI__Expert 4685 points

    This link might help. I hope u have done necessary switch settings.

    http://processors.wiki.ti.com/index.php/SD_card_boot_and_flashing_tool_for_DM355_and_DM365

  • 0 in reply to Nagabhushana
    Prodigy 80 points

    Nagabhushana,

     

    Thanks for the reply, but that is exactly what I mention on my post, this tool, as I understand it is NOT the SD UBL for a generic boot, it is used to:

    1) Boot from SD

    2) Get the built in UBL and u-boot and write into flash (NAND or NOR)

    3) Then you boot your board and it boots from NAND/NOR

     

    I am looking for the UBL that is put in SD and when it is booted it goes to SD and boots u-boot from SD.

    Thanks!