diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2015-12-29 09:44:47 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2015-12-29 09:44:47 +0000 |
| commit | 74f7c840cad3e1dff186088b4fb148193beea69c (patch) | |
| tree | 20afce67e29420583e7c235ff9b263c73448657e /distrib/socppc | |
| parent | 50e79a803f68420b63aa1c234d9fbb559b516596 (diff) | |
Set UltraDMA transfer mode. Some (early?) SATA drives, such as the Maxtor
7Y250M0, refuse to do DMA unless the transfer mode has been set. This causes
reads (and presumably writes) to time out.
Unlike the wdc code, this only sets the UltraDMA transfer mode. If we ever
want to support ancient PATA drivers through the atascsi layer, we probably
need to set the PIO and/or MWDMA transfer modes as well.
ok jmatthew@, dlg@)
Diffstat (limited to 'distrib/socppc')
0 files changed, 0 insertions, 0 deletions