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Last Post 11 Jan 2005 04:13 PM by  Anonymous
LH7A400 from logicPD fat and ext2 problem--update info
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testingmoore
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Posts:


--
14 Dec 2004 11:37 PM
    Dear people,

    we have the above stated evaluation board.

    however we have had zero luck getting it to run linux,

    NEW INFO:
    the installer for linux does correctly place the installed image onto the card, however the cf card is now formated in ext2.

    the eval board only supports fat file system, it refuces to mount anything except the fat file system.

    does anyone know of a method out of this without having to re-flash the whole of the existing operating system so it recognises ext2

    the loader is:logicloader 1.4.3
    OLD INFO:

    and we have access to the bootloader, so the prompt and all.

    for linux:
    we also have the metrowerks compiler with the sharp Linux BSP Plug-In.

    We can open it and get the code to compile, after that we are having issues uploading/converting/executing the program from a compact flash card.

    so it will compile(program says ok; the logic PD, LH7A400 SDK/IDK Deployment), and after, it doesnt load, or the image loaded is incorrect type/format .

    if anyone could advice on a sollution or maybe even provide a linux image that can boot, we would greatly appreciate it

    If you are feeling good, please send the linux image or other information to 'stas@c-t.com.au'

    Best Regards,
    Stas.
    Anonymous
    Posts:


    --
    17 Dec 2004 01:06 PM
    testingmoore,

    You're probably going to have to replace bolo/lolo with another bootloader if you want to use a file system other than fatfs. Please make sure you have a way to restore bolo/lolo to block zero if you have problems getting another bootloader ( blob ) to run on the card engine. The best way to do this is to have an ARM Multi-ICE JTAG debugger.

    http://www.arm.com/products/DevTools/MultiICE.html

    Regards,
    tom@cyberiansoftware.com
    New Member
    New Member
    Posts:


    --
    17 Dec 2004 04:04 PM
    This can also be done via a jtag wiggler. I've been using a wiggler (parallel port JTAG) to program the Flash of the LH7A400. You can replace bolo with such a setup, as well as put both bolo & lolo back into the Flash.

    The software to do this is still not yet released back to the patch maintainer for the Jtag package. I have some issues with the CPLD vs. the VPEN vs. JTAG. Contact me directly if you need help getting setup.
    Anonymous
    Posts:


    --
    11 Jan 2005 04:13 PM
    testingmoore,

    As a follow up note:

    It is possible to use LoLo to load a .bin file of a Linux kernel, however the process is a lot to work as far as hardcoding things specific to the A400 in your source. I've never done this personally but I know that it can be done.

    There are other bootloaders out there that could load your kernel for you without while supporting the file system that you want. Marc Singer would be a good source of information for this.

    http://projects.buici.com/

    Regards,
    You are not authorized to post a reply.

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