Hi,
With digging into the code...
I think the ht6560b controller supports DMA. At least it did so in 2.2
(where hdparm could still turn it on). DMA in 2.2 would improve the HD
from about 1M/s to 4M/s. So that's quite interesting.
Also the datasheet claims that there is full ANSI ATA-4a support.
According to the ATA table on wikipedia that should include up to mwdma
2 and udma33.
What's the magic that will turn it on for the ht6560b controller?
I would guess at the [sm]wdma_mask fields in hwif_t? Plus something for
set_dma_mode?
Some help would be appreciated.
Thanks,
Jan Evert
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