jkim dabd76d3b6 - Revert r191568 partially. Forcing AHCI mode by changing device subclass
and progif is evil.  It doesn't work reliably[1] and we should honor BIOS
configuration by the user.
- If the SATA controller is enbled but combined mode is disabled, mask off
the emulated IDE channel on the legacy IDE controller.

Pointed out by:	mav[1]
2009-10-05 16:26:54 +00:00
..