Annotation of www/mvme88k.html, Revision 1.115
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1.29 miod 11:
1.112 bentley 12: <h2 id=OpenBSD>
1.106 tb 13: <a href="index.html">
1.112 bentley 14: <i>Open</i><b>BSD</b></a>
15: mvme88k
1.106 tb 16: </h2>
1.29 miod 17: <hr>
1.112 bentley 18:
19: <table><tr><td>
1.106 tb 20: <p>
1.80 miod 21: OpenBSD/mvme88k is a port of OpenBSD to the systems built upon
22: Motorola's 88xxx-based VME motherboard family.
1.112 bentley 23:
1.105 deraadt 24: <p>
1.98 miod 25: <strong>The OpenBSD/mvme88k port has been discontinued after the 5.5 release.</strong>
1.112 bentley 26: </table>
1.1 deraadt 27:
1.105 deraadt 28: <hr>
1.13 smurph 29:
1.112 bentley 30: <h3 id="history"><strong>History:</strong></h3>
1.13 smurph 31:
32: <p>
1.114 deraadt 33: The Motorola 88k processor is said to be the best RISC processor ever
34: devised. Its simplicity and elegance combine to make the mvme88k a
1.89 miod 35: hearty, robust platform.
1.29 miod 36:
1.13 smurph 37: <p>
1.89 miod 38: Unfortunately, the first generation designs (88100) made use of companion chips
39: for cache and virtual memory management, making hardware designs painfully
40: complex (and expensive, at that time). The second generation (88110) addressed
1.91 miod 41: this issue, but was plagued with reliability issues. Eventually, Motorola
1.89 miod 42: seized the opportunity to drop the 88000 line in favour of the PowerPC as soon
43: as possible, although some parts of the 88110 still exist in the PowerPC family
44: processors today.
45:
46: <p>
47: Nivas Madhur started the initial mvme88k port for the MVME187 card, building
48: upon the CMU Mach code running on the 88100-based Omron Luna88k systems.
49: However, he moved on to another employer before his work was ready to be
50: imported into the OpenBSD source tree.
51:
52: <p>
53: This integration work was completed by Dale Rahn, but he did not have enough
54: time to continue working on the port. Steve Murphree, Jr., stepped up, and
55: eventually completed the port to the MVME187 in November 1998.
1.13 smurph 56:
57: <p>
1.29 miod 58: Unfortunately, at the same time, a compiler upgrade from gcc 2.8.1 to
1.80 miod 59: egcs exposed a lot of problems in the mvme88k support in gcc, which
1.29 miod 60: could not be fixed in time for mvme88k to be a supported OpenBSD 2.5
61: release.
1.13 smurph 62:
63: <p>
1.29 miod 64: The lack of an in-tree toolchain did not prevent further work on the port,
65: and a lot of changes were made to the codebase, such as revamped autoconf
1.80 miod 66: and on-board SCSI driver, greatly expanded VME bus support, a working
67: install process that correctly creates a Motorola VID block on the disks,
1.29 miod 68: and support for MVME188 as well as improving support for MVME197.
1.13 smurph 69:
1.34 miod 70: <p>
71: During summer 2003, an effort to fix the toolchain eventually produced a
72: working gcc 2.95 compiler, and allowed the port to be self-hosting again.
1.54 miod 73: With the help of Mark Kettenis, the toolchain effort eventually produced
74: working binutils and gdb in late may 2004.
1.34 miod 75:
1.69 miod 76: <p>
77: Work towards multiprocessor support on the MVME188 boards started in
78: summer 2005 and, after a lot of tedious bugfixing, was eventually
79: completed shortly after the 4.2 release in november 2007.
80:
1.70 miod 81: <p>
82: The next step was getting the 88110-based MVME197 designs to work.
1.80 miod 83: Single-processor kernels started to run reliably in december 2007;
84: multiprocessor support was completed in march 2009, but kept triggering
85: obscure bugs which eventually got tracked down to a processor errata,
86: fixed for good in april 2010.
1.70 miod 87:
1.89 miod 88: <p>
89: The long-awaited switch from the a.out binary format to ELF happened after the
1.93 sthen 90: 5.3 release, with a compiler upgrade to gcc 3.3.6. This work paved the way
1.90 miod 91: for ELF shared libraries support.
1.89 miod 92:
1.29 miod 93: <hr>
1.112 bentley 94: <h3 id="status"><strong>Current status:</strong></h3>
1.29 miod 95:
1.13 smurph 96: <p>
1.96 miod 97: Currently, MVME181, MVME187, MVME188 and MVME197 boards, as well as similar
1.46 miod 98: designs, are booting multi-user, supporting most of the on-board devices.
1.39 david 99: There are still a few caveats; depending on your exact hardware setup,
100: your mileage may vary.
1.19 smurph 101:
1.13 smurph 102: <hr>
1.112 bentley 103: <h3 id="hardware"><strong>Supported hardware:</strong></h3>
1.13 smurph 104:
1.29 miod 105: <h4>Supported processor boards</h4>
1.13 smurph 106:
107: <ul>
1.112 bentley 108: <li><strong>MVME180 <i>"Angelfire"</i> and MVME181</strong><br>
1.96 miod 109: A low-cost, entry level board, featuring a single 88100 processor, two 88200
110: CMMUs and two on-board serial ports.<br>
1.35 miod 111: <li><strong>MVME187</strong><br>
112: A single 88100 processor-based version of the <a href="mvme68k.html">mvme68k</a>
1.36 miod 113: MVME167 and MVME177 boards. Features two 88200 CMMUs with 16KB cache
1.35 miod 114: each, SRAM, and on-board ethernet and SCSI controllers, as well as four serial
115: ports and one parallel port.<br>
1.55 miod 116: <li><strong>MVME188 and MVME188A</strong><br>
1.38 miod 117: Contrary to the other MVME processor boards, this board has no on-board
118: devices; it just acts as a container for an <i>HYPERmodule</i> which provides
1.69 miod 119: one, two or four 88100 processors, and two or four 88200 (16KB cache) or 88204
1.38 miod 120: (64KB cache) CMMUs per processor.<br>
1.55 miod 121: All HYPERmodules combinations are supported, but M88200 1P128 and 1P512 have
122: not been tested.<br>
1.38 miod 123: External cards specific to the MVME188 family provide memory and serial ports.
1.70 miod 124: <br>
1.75 miod 125: Multi-processor kernels are supported on these boards.
1.70 miod 126: <li><strong>MVME197LE</strong><br>
127: An entry-level design similar to the MVME187, but based on the 88110 processor
128: with integrated MMU and cache controller.<br>
129: <li><strong>MVME197SP and MVME197DP</strong><br>
130: Improved versions of the MVME197LE, with one (SP) or two (DP) 88110 processors,
131: and one 88410 external cache controller per processor.<br>
1.80 miod 132: Multi-processor kernels are supported on these boards.
1.13 smurph 133: </ul>
134:
1.29 miod 135: <p>
1.45 miod 136: Besides various Motorola complete systems (<strong>M8120</strong>,
1.76 miod 137: <strong>Series 900</strong>, etc), this port also runs on the
1.45 miod 138: MVME187-based <strong>Triton Dolphin System 100</strong>.
139:
1.29 miod 140: <h4>Supported on-board devices</h4>
1.13 smurph 141:
142: <ul>
1.96 miod 143: <li><strong>MVME181</strong>
144: <ul>
145: <li>on-board serial ports (ttya-ttyb)
1.112 bentley 146: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/dart.4">dart</a>)
1.96 miod 147: </ul>
1.113 deraadt 148:
1.70 miod 149: <li><strong>MVME187 and MVME197</strong>
1.13 smurph 150: <ul>
1.96 miod 151: <li>Cirrus Logic CL2400 serial ports (tty00-tty03/tty07<i>[M8120]</i>)
1.112 bentley 152: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/cl.4">cl</a>)
1.45 miod 153: <li>Intel 82596CA Ethernet interface
1.112 bentley 154: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/ie.4">ie</a>)
1.45 miod 155: <li>NCR53c710 SCSI Controller
1.112 bentley 156: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/osiop.4">osiop</a>)
1.45 miod 157: <li>128KB SRAM (/dev/sram0)
158: <li>8KB NVRAM (/dev/nvram0)
1.13 smurph 159: </ul>
1.113 deraadt 160:
1.45 miod 161: <li><strong>MVME188</strong>
1.13 smurph 162: <ul>
1.96 miod 163: <li>serial ports on <i>SYSCON</i> board (ttya-ttyb)
1.112 bentley 164: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/dart.4">dart</a>)
1.45 miod 165: <li>2KB NVRAM (/dev/nvram0)
1.13 smurph 166: </ul>
1.113 deraadt 167:
1.29 miod 168: </ul>
1.13 smurph 169:
1.45 miod 170: <h4>Supported VME boards</h4>
1.13 smurph 171:
172: <ul>
1.77 miod 173: <li><strong>MVME327A</strong> SCSI and floppy Controller
1.112 bentley 174: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/vsbic.4">vsbic</a>),
1.77 miod 175: currently limited to the SCSI interface
1.45 miod 176: <li><strong>MVME328</strong> High Performance SCSI Controller
1.112 bentley 177: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/vs.4">vs</a>)
1.45 miod 178: <li><strong>MVME332XT</strong> High Performance Serial I/O Controller
1.42 miod 179: (8 serial ports, 1 parallel port) (vx)
1.45 miod 180: <li><strong>MVME376</strong> Ethernet Communications Controller
1.112 bentley 181: (<a href="https://man.openbsd.org/OpenBSD-5.5/mvme88k/le.4">le</a>)
1.33 miod 182: </ul>
183:
1.13 smurph 184: <hr>
1.112 bentley 185:
186: <h3 id="install">
1.29 miod 187: <strong>Getting and installing OpenBSD/mvme88k:</strong>
1.112 bentley 188: </h3>
1.29 miod 189:
190: <p>
1.110 tj 191: The last supported OpenBSD/mvme88k release was
1.98 miod 192: <a href="55.html">OpenBSD 5.5</a>.
1.52 david 193: Here are the
1.108 tb 194: <a href="https://ftp.OpenBSD.org/pub/OpenBSD/5.5/mvme88k/INSTALL.mvme88k">
1.109 tb 195: OpenBSD/mvme88k 5.5 installation instructions</a>.
1.52 david 196:
1.3 fn 197: <hr>
1.112 bentley 198: <h3 id="details"><strong>Hardware details:</strong></h3>
1.13 smurph 199:
1.14 smurph 200: <p>
1.29 miod 201: As VME hardware is quite uncommon in the average retail place, and Motorola
202: 881x0-based hardware is even more rare, this section is here to satisfy the
203: well-founded curiosity about the mvme88k hardware.
204:
1.48 miod 205: <p>
206: A comprehensive reference about the m88k processor and the various designs
1.99 miod 207: built upon has been gathered by Paul Weissmann at
1.115 ! dtucker 208: <a href="http://web.archive.org/web/20110624235150/http://badabada.org/"
! 209: >badabada</a>.
1.48 miod 210:
1.112 bentley 211: <p id="pics">
1.29 miod 212: Pictures of a Motorola 900 modular chassis, with a 33MHz MVME187 CPU board,
213: 32MB RAM, 4 MVME332XT serial boards, and an Archive 250MB QIC tape drive.
1.14 smurph 214: <ul>
1.29 miod 215: <li><a href="images/mvme187-1.jpg">MVME187 Series 900 (front view)</a>
1.14 smurph 216: <li><a href="images/mvme187-2.jpg">MVME187 Series 900 (rear view)</a>
217: <li><a href="images/mvme187-3.jpg">MVME187 Series 900 (rear view w/terminal)</a>
218: <li><a href="images/mvme187-4.jpg">MVME187 Series 900 (rear view close up)</a>
219: <li><a href="images/mvme188-2.jpg">MVME188 Dual proc board</a>
220: </ul>
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