ACPI + FIC VA-503+ = non-working fdc

[george+freebsd at m5p.com]

On a FIC VA-503+ motherboard, ACPI does not play nice with the floppy
disk controller.  In all versions of 5.x, and now 6.0, it cannot talk
to the fdc when ACPI is enabled.  In 6.0-RELEASE, the message I get
if "No FDOUT register!".  It works fine with ACPI disabled, and perhaps
I should just stick with that ...

Also, in 6.0-RELEASE, enabling ACPI seems to cause the re driver to
get watchdog timeouts ...

-- George Mitchell