DMA Cache problem on PPC8248.

Jayasri Sangu JayasriS at aaesys.com
Wed Aug 20 07:53:22 EST 2008


Hi All,

   We are using PPC8248 provided by freescale and the kernel  2.6.10. I believe we have cache problem.

  We are allocating DMA buffers in our driver. If we increase the DMA buffer size the board hangs/halts(when try to load more applications).

  If we reduce the DMA buffer size, then we can run all our applications.

   Is there any way I can get around this problem.


Thanks
Jayasri




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