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I am going nuts with 48-bit DMA now....gurrr.

28-bit everything is cool, less tag and av.
48-bit pio and multimode is cool, less tag and av.

Currently I do not support tag or av.

Is there a different data-phase for setup and handling required for 
48-bit DMA?  Has anyone gotten 48-bit DMA running?

Here is the fun part, one the first command is issue the device just goes
into busy and cooks.  Since I am positive that I am restricting it to a
128 sectors of transfer, and if I issue a buss intercept reset via the
driver, I get control back.  If falls out of DMA and retries in PIO and
success.

Now I aware that if 0 is punched into the command in 48-bit, I get 32MB
per request.

Here is the best part, I can issue a system command to toggle between
28/48 modes during a transaction (of course it only becomes effective upon
the completion of the current request), but it will run just fine.

Any ideas gang?

Cheers,

Andre Hedrick
Linux ATA Development

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