Table of contents


The Motorola 88k processor is said to be the best RISC processor ever devised. Its simplicity and elegance combine to make the mvme88k a hearty, robust platform.

Nivas Madhur started the initial mvme88k port for the MVME187 card, but has since moved on to another employer. Steve Murphree, Jr. completed the port in November 1998. The port has since had major changes including revamped autoconf and on-board SCSI driver. New, greatly expanded VME bus support. A working install process that correctly creates a Motorola VID block on the disks.

Current Status:

The people working the most on OpenBSD/mvme88k are: Steve Murphree, Jr. More would be nice :)

Email may be sent to the maintainer of the OpenBSD/mvme88k port at

There is a snapshot avaliable as of 2.4. The port supports the MVME187 Single Board Computer (SBC). MVME188 multi-processor board support is currently "in the works." Support for the MVME197 is planned, but time is needed to get things going. The installation tools and process as of the 2.5 release actually work. OpenBSD/mvme88k can be installed or upgraded via tape ramdisk images as well as network and diskless installs.

Where to get it:

Supported hardware list:

OpenBSD/mvme88k runs on the following classes of machines:

Supported devices

OpenBSD/mvme88k does *not* run on these machines (yet):

Unsupported Devices. There are many more...

Where can you find hardware?

If you really want to play 88k, this is what I suggest:

John has all of this stuff. Give him a shout and see what he can get for you.

Project list:

mvme88k pictures:

The picture at the top of this page is a MVME 900 Series Chassis with a MVME187 33 Mhz, 32 Megabyte RAM SBC board, 4 MVME332XT serial baords and an ARCHIVE 250 MB QIC Tape unit. Its hostname is m187. It is the primary build machine for the OpenBSD/mvme88k port.

mvme88k dmesg:

Check out the cool VME bus devices! Err, also check out how many builds it took to get them working...

OpenBSD 2.5 (XT) #404: Wed May 26 02:11:50 CDT 1999

Model: Motorola MVME187 25Mhz
real mem  = 33550336
avail mem = 29126656
using 409 buffers containing 1675264 bytes of memory
mainbus0 (root) machine type MVME187
pcctwo0 at mainbus0 addr 0xfff00000: rev 0
setting interrupt ack vectors.
clock0 at pcctwo0 ipl 5
nvram0 at pcctwo0 offset 0xc0000: MK48T08 len 8192
cl0 at pcctwo0 offset 0x45000 ipl 3 console 
siop0 at pcctwo0 offset 0x47000 ipl 2: version 0 target 7
scsibus0 at siop0: 8 targets
siop0: target 0 now synchronous, period=100ns, offset=8
sd0 at scsibus0 targ 0 lun 0: <COMPAQPC, DSP3053LS, 442C> SCSI2 0/direct fixed
sd0: 511MB, 3117 cyl, 4 head, 83 sec, 512 bytes/sec, 1046532 sec total
vme0 at pcctwo0 offset 0x40000: system controller
vme0: using BUG parameters
vme0: 1phys 0x40000000-0xefff0000 to VME 0x40000000-0xefff0000
vme0: 2phys 0xff000000-0xff7f0000 to VME 0xff000000-0xff7f0000
vme0: 3phys 0x02000000-0x3fff0000 to VME 0x02000000-0x3fff0000
vme0: 4phys 0x00000000-0x00000000 to VME 0x00000000-0x00000000
vme0: vme to cpu irq level 1:1
vmes0 at vme0
ve0 at vmes0 addr 0xffff1200 vaddr 0xef000200 vec 0x74 ipl 3
ve0: address 00:00:77:83:9f:a6
ve0: 128 receive buffers, 32 transmit buffers
vs0 at vmes0 addr 0xffff9000 vaddr 0xef041000 vec 0x80 ipl 2: target 7
scsibus1 at vs0: 8 targets
sd1 at scsibus1 targ 0 lun 0: <FUJITSU, M2624F-512, M405> SCSI1 0/direct fixed
sd1: 496MB, 1429 cyl, 11 head, 64 sec, 512 bytes/sec, 1015812 sec total
cd0 at scsibus1 targ 1 lun 0: <NEC, CD-ROM DRIVE:500, 1.2> SCSI1 5/cdrom removable
vmel0 at vme0
ie0 at pcctwo0 offset 0x46000 ipl 3: address 08:00:3e:21:33:57
boot device: sd0
root on sd0a
rootdev=0x400 rrootdev=0x800 rawdev=0x802

$OpenBSD: mvme88k.html,v 1.18 1999/07/22 02:51:57 smurph Exp $