Quetions about the DS-reserved edma channels..

Dear all,

     My CPU is DM6446.

      In MV linux kernel, the function davinci_request_dma(EDMA_DMA_CHANNEL_ANY, ...)  will return a reserved edma channels. e.g, edma channel  0-1 and 12-13.

     Does this mean all the reserved dma channels can be used to service ARM or DSP? When I use edma channel 0 in the ARM-side. my application is messed while loading the DSP-side TI's algotithms(e.g, encodeCombo.x64P). Someone in the opensource forum said the edma channel 0 should be reserved for DSP. Please kindly check this link:

http://linux.omap.com/pipermail/davinci-linux-open-source/2009-April/012702.html

     I can't find the edma information of DSP-side in the DMAN3 params or other places. Then how can I know which edma channals that I can't use in ARM-side? Please give me some clue.

     Thanks!

    Wei Jiang