PERFORCE change 50168 for review

[Scott Long]

http://perforce.freebsd.org/chv.cgi?CH=50168

Change 50168 by scottl at scottl-esp-sparc64 on 2004/04/01 22:07:50

	Import the ESP driver core (ncr53c9x), dma engine (lsi64854), and
	sbus attachment from NetBSD.  A couple of these files are a few
	months more, but not significant bug fixes have been missed.

Affected files ...

.. //depot/projects/scottl-esp/src/sys/dev/esp/esp_sbus.c#1 add
.. //depot/projects/scottl-esp/src/sys/dev/esp/lsi64854.c#1 add
.. //depot/projects/scottl-esp/src/sys/dev/esp/lsi64854reg.h#1 add
.. //depot/projects/scottl-esp/src/sys/dev/esp/lsi64854var.h#1 add
.. //depot/projects/scottl-esp/src/sys/dev/esp/ncr53c9x.c#1 add
.. //depot/projects/scottl-esp/src/sys/dev/esp/ncr53c9xreg.h#1 add
.. //depot/projects/scottl-esp/src/sys/dev/esp/ncr53c9xvar.h#1 add

Differences ...