Justin T. Gibbs efaafa27d3 Honor the CHANNEL_B_PRIMARY bit of the BIOSCTRL register and probe
channel B first as approriate.

Only reset the SCSI bus if the RESET_SCSI bit of SCSICONF is set.  This
makes the aic7xxx driver honor all of the configuration settings availible
in SCSI-Select or the ECU.

Fix a benign bug in the reset code that caused us to always wait a full
second after the chip reset.  This should shave some time off the probe.
Bug found by pedrosal@nce.ufrj.br (Pedro Salenbauch)

It seems that only the top three sync rates are doubled when in ultra mode,
so update the syncrates table as appropriate.
Found by "Dan Willis" <dan@plutotech.com> and his SCSI bus analyzer
1996-05-10 16:21:05 +00:00
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