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Booting custom board

Gennadiy Kiryukhin
Expert 2800 points

I have a custom DM355-217 board (2G NAND flash, 128M mDDR, no USB, no Ethernet). I was able to change UBL and SD flashing tool to work with mDDR.

I got the toolchain setup. For now, I just want the board to boot up at least to a command prompt.

I have downloaded the kernel and toolchain as instructed in GSG for DM355.

I have difficulty compiling the kernel. I tried different configurations and it just does not want to start. I get the 'Uncompression...starting " message and nothing else.

Other precompiled kernels (for leopard dm355) begin to boot but then panic or just hang.

It seems that I need to tweak the rootfs and kernel. Is there a document that describes how to modify the rootfs image and make it into one file to load into flash? What kernel does TI recommend?

 

 

  • 0
    Genius 5240 points

    You should first get your board to boot using TFTP to serve the kernel and NFS to serve the RFS.  This allows you to find out what is the problem with it hanging by using your development system to work on the code.  Since the board is custom, you should initially use the board support that's closet to your design.

    John A