Using the loop feature of the DMA controller on MPC8544 DS

Sebastian Siewior linuxppc-embedded at
Wed Mar 12 23:34:37 EST 2008


I have here a MPC8544 DS board and I tried to utilise the dma
controller. For the transfers I need set the [S|D]AHE bit in the Mode
Register. This seems to be implemented but is currently unused in the
driver. I haven't found a way how to set this bit except globally for
the whole channel.
Is it possible to solve this nicely except dedicating one channel for
such an operation?


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