Thanks to some testing help from Gyenes Istvan, I've got the Jensen
systems (DEC 2000/300, a.k.a. DECpc AXP 150) working.  Appended below
is the console output of the most recent test kernel -- note that it
boots into the installation tool.

There was a kernel configuration error in the INSTALL kernel that
prevented Jensen SCSI from working, but that has since been fixed
and the code has been committed.

Also, I've edited out the debugging messages that the Jensen code still
had enabled (they have been disabled in the code I committed).

I'll pull this into the netbsd-1-5 branch so that NetBSD 1.5 will work
on the Jensen systems.

>>> b dka200
INIT-S-CPU...
AUDIT_BOOT_STARTS ...
AUDIT_CHECKSUM_GOOD
AUDIT_LOAD_BEGINS
AUDIT_LOAD_DONE


NetBSD/alpha 1.5_ALPHA FFS Primary Bootstrap
Jumping to entry point...

NetBSD/alpha 1.5_ALPHA Secondary Bootstrap, Revision 1.10
(matt@center.local, Jun 21 20:02:47 PDT 2000)

VMS PAL rev: 0x100010530
OSF PAL rev: 0x20123
Switch to OSF PAL code succeeded.

Boot flags: A
7725016+255304]=0x79c878

Entering netbsd at 0xfffffc00003010c0...
[ netbsd ELF symbol table not valid ]
[ no symbol table formats found ]
Copyright (c) 1996, 1997, 1998, 1999, 2000
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 1.5B (INSTALL) #15: Wed Jul 12 10:32:06 PDT 2000
    thorpej@frau-farbissina:/u2/netbsd/src/sys/arch/alpha/compile/INSTALL
DEC2000 model 300, 150MHz, s/n
8192 byte page size, 1 processor.
total memory = 65536 KB
(2048 KB reserved for PROM, 63488 KB used by NetBSD)
avail memory = 51048 KB
using 409 buffers containing 3272 KB of memory
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21064-0
jensenio0 at mainbus0
pckbc0 at jensenio0 port 0x60
com0 at jensenio0 port 0x3f8: ns8250 or ns16450, no fifo
com0: console
com0: interrupting at vector 0x900
com1 at jensenio0 port 0x2f8: ns8250 or ns16450, no fifo
com1: interrupting at vector 0x920
lpt0 at jensenio0 port 0x3bc
lpt0: interrupting at eisa irq 1
mcclock0 at jensenio0 port 0x170: mc146818 or compatible
eisa0 at jensenio0
device CPQ3111 at eisa0 slot 2 not configured
ahb0 at eisa0 slot 4: Adaptec AHA-1742A SCSI
ahb0: interrupting at eisa irq 12
scsibus at ahb0 not configured
device DEC4220 at eisa0 slot 5 not configured
isa0 at jensenio0
vga0 at isa0 port 0x3b0-0x3df iomem 0xa0000-0xbffff
wsdisplay0 at vga0
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
md0: internal 4650K image area
WARNING: can't figure what device matches "SCSI 1 4 0 0 200 0 JENS-IO"
root on md0a dumps on md0b
WARNING: preposterous clock chip time
 -- CHECK AND RESET THE DATE!
root file system type: ffs
Terminal type? [vt100]

 Welcome to sysinst, the NetBSD-1.5B system installation tool.  This
 menu-driven tool is designed to help you install NetBSD to a hard disk, or
 upgrade an existing NetBSD system, with a minimum of work.  In the following
 menus, you may change the current selection by either typing the reference
 letter (a, b, c, ...).  Arrow keys may also work.  You activate the current
 selection from the menu by typing the enter key.

 If you booted from a floppy, you may now remove the disk.

 Thank you for using NetBSD!

               l***********************************************k
               * NetBSD-1.5B Install System                    *
               *                                               *
               *>a: Install NetBSD to hard disk                *
               * b: Upgrade NetBSD on a hard disk              *
               * c: Re-install sets or install additional sets *
               * d: Reboot the computer                        *
               * e: Utility menu                               *
               * x: Exit Install System                        *
               m***********************************************j

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>