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MMU Disable Under Linux

Gemini Phoebo
Prodigy 50 points
Other Parts Discussed in Thread: OMAP3530

Hi all,

We are currently using OMAP3530 EVM for some tests.  We would like to firstly know the physical addresses corresponding to our allocated memory space and stack space so that we planed to turn off the MMU(Memory Management Unit) module under Linux. However, after configuarations of MMU, there are different kinds of errors coming up. Do you guys have experience on disabling MMU? Have you got examples or relevant guidance instructions that we can refer to?

Thanks a lot for your reply. I deeply appreciate your help.

Best,

Gemini

  • 0
    Intellectual 390 points

    have you seen this link on trying to disable your MMU?: http://hilbert-space.de/?p=55 

     

    let me know if this works for you ... I am trying to disable mine as well, but run into this:

    Unhandled fault: external abort on non-linefetch (0x1018) at 0x4001f010  

    when reaching here in the code:

    // start MMU soft-reset:
    mmu[MMU_SYSCONFIG] |= 1;