NetBSD master CVS tree commits

[The Source of All Evil <source%NetBSD.ORG@localhost>]

thorpej
Tue May 26 16:43:06 PDT 1998
Update of /cvsroot/src/sys/arch/alpha/tc
In directory nb00:/tmp/cvs-serv6591/tc

Modified Files:
        tcds.c tcds_dma.c tcdsvar.h 
Log Message:
- Additional rearrangement for the sake of running on the DECstation some
  day.
- Convert to use bus_dma.
- Fix cleaning up unaligned start address.
- Correctly determine if the device supports Fast SCSI, and adjust the
  minimum sync period accordingly.
- Compute minimum sync period correctly on the 25MHz devices.
- Use GPI2 to determine if we're a 25MHz or 40MHz device.
- Currectly determine SCSI ID and "fast mode enabled" for the built-in
  TCDS on DEC 3000 models, using cached information from the PROM environment.