Annotation of www/mvme88k.html, Revision 1.94
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16: <p>
17: <h2><font color="#e00000">OpenBSD/mvme88k</font></h2>
18:
19: <hr>
1.3 fn 20:
1.29 miod 21: <p>
1.80 miod 22: OpenBSD/mvme88k is a port of OpenBSD to the systems built upon
23: Motorola's 88xxx-based VME motherboard family.
1.1 deraadt 24:
1.29 miod 25: <p>
1.64 miod 26: A mailing list for m88k-based ports is available at
27: <u><font color="#23238e">m88k@openbsd.org</font></u>.
28: To join the OpenBSD/m88k mailing list, send a message body of
29: <b>"subscribe m88k"</b> to
30: <a href="mailto:majordomo@openbsd.org">majordomo@openbsd.org</a>.
31: Please be sure to check our <a href="mail.html">mailing list policy</a> before
32: subscribing.
33:
1.67 nick 34: <a name="toc"></a>
1.29 miod 35: <h3><font color="#0000e0"><i>Table of contents</i></font></h3>
1.3 fn 36: <p>
1.13 smurph 37: <ul>
1.31 jufi 38: <li><a href="#history">History of the port</a>
1.29 miod 39: <li><a href="#status">Current status</a>
40: <li><a href="#projects">Project list</a>
1.56 nick 41: <li><a href="#hardware">Supported hardware</a>
1.29 miod 42: <li><a href="#install">Getting and installing OpenBSD/mvme88k</a>
43: <li><a href="#details">Hardware details</a>
1.13 smurph 44: </ul>
45:
46: <hr>
1.29 miod 47: <a name="history"></a>
48: <h3><font color="#0000e0"><strong>History:</strong></font></h3>
1.13 smurph 49:
50: <p>
1.16 smurph 51: The Motorola 88k processor is said to be the best RISC processor ever
1.17 deraadt 52: devised. Its simplicity and elegance combine to make the mvme88k a
1.89 miod 53: hearty, robust platform.
1.29 miod 54:
1.13 smurph 55: <p>
1.89 miod 56: Unfortunately, the first generation designs (88100) made use of companion chips
57: for cache and virtual memory management, making hardware designs painfully
58: complex (and expensive, at that time). The second generation (88110) addressed
1.91 miod 59: this issue, but was plagued with reliability issues. Eventually, Motorola
1.89 miod 60: seized the opportunity to drop the 88000 line in favour of the PowerPC as soon
61: as possible, although some parts of the 88110 still exist in the PowerPC family
62: processors today.
63:
64: <p>
65: Nivas Madhur started the initial mvme88k port for the MVME187 card, building
66: upon the CMU Mach code running on the 88100-based Omron Luna88k systems.
67: However, he moved on to another employer before his work was ready to be
68: imported into the OpenBSD source tree.
69:
70: <p>
71: This integration work was completed by Dale Rahn, but he did not have enough
72: time to continue working on the port. Steve Murphree, Jr., stepped up, and
73: eventually completed the port to the MVME187 in November 1998.
1.13 smurph 74:
75: <p>
1.29 miod 76: Unfortunately, at the same time, a compiler upgrade from gcc 2.8.1 to
1.80 miod 77: egcs exposed a lot of problems in the mvme88k support in gcc, which
1.29 miod 78: could not be fixed in time for mvme88k to be a supported OpenBSD 2.5
79: release.
1.13 smurph 80:
81: <p>
1.29 miod 82: The lack of an in-tree toolchain did not prevent further work on the port,
83: and a lot of changes were made to the codebase, such as revamped autoconf
1.80 miod 84: and on-board SCSI driver, greatly expanded VME bus support, a working
85: install process that correctly creates a Motorola VID block on the disks,
1.29 miod 86: and support for MVME188 as well as improving support for MVME197.
1.13 smurph 87:
1.34 miod 88: <p>
89: During summer 2003, an effort to fix the toolchain eventually produced a
90: working gcc 2.95 compiler, and allowed the port to be self-hosting again.
1.54 miod 91: With the help of Mark Kettenis, the toolchain effort eventually produced
92: working binutils and gdb in late may 2004.
1.34 miod 93:
1.69 miod 94: <p>
95: Work towards multiprocessor support on the MVME188 boards started in
96: summer 2005 and, after a lot of tedious bugfixing, was eventually
97: completed shortly after the 4.2 release in november 2007.
98:
1.70 miod 99: <p>
100: The next step was getting the 88110-based MVME197 designs to work.
1.80 miod 101: Single-processor kernels started to run reliably in december 2007;
102: multiprocessor support was completed in march 2009, but kept triggering
103: obscure bugs which eventually got tracked down to a processor errata,
104: fixed for good in april 2010.
1.70 miod 105:
1.89 miod 106: <p>
107: The long-awaited switch from the a.out binary format to ELF happened after the
1.93 sthen 108: 5.3 release, with a compiler upgrade to gcc 3.3.6. This work paved the way
1.90 miod 109: for ELF shared libraries support.
1.89 miod 110:
1.29 miod 111: <hr>
112: <a name="status"></a>
113: <h3><font color="#0000e0"><strong>Current status:</strong></font></h3>
114:
1.13 smurph 115: <p>
1.70 miod 116: Currently, MVME187, MVME188 and MVME197 boards, as well as similar
1.46 miod 117: designs, are booting multi-user, supporting most of the on-board devices.
1.39 david 118: There are still a few caveats; depending on your exact hardware setup,
119: your mileage may vary.
1.74 sthen 120: Work is in progress to fix the remaining problems.
1.13 smurph 121:
1.29 miod 122: <hr>
123: <a name="projects"></a>
124: <h3><font color="#0000e0"><strong>Projects (in no particular order):
125: </strong></font></h3>
1.19 smurph 126:
127: <p>
128: <ul>
1.77 miod 129: <li>Work on unsupported device cards (MVME330, MVME374...).
1.19 smurph 130: </ul>
131:
1.13 smurph 132: <hr>
1.29 miod 133: <a name="hardware"></a>
134: <h3><font color="#0000e0"><strong>Supported hardware:</strong></font></h3>
1.13 smurph 135:
136: <p>
1.29 miod 137: <h4>Supported processor boards</h4>
1.13 smurph 138:
139: <p>
140: <ul>
1.35 miod 141: <li><strong>MVME187</strong><br>
142: A single 88100 processor-based version of the <a href="mvme68k.html">mvme68k</a>
1.36 miod 143: MVME167 and MVME177 boards. Features two 88200 CMMUs with 16KB cache
1.35 miod 144: each, SRAM, and on-board ethernet and SCSI controllers, as well as four serial
145: ports and one parallel port.<br>
1.55 miod 146: <li><strong>MVME188 and MVME188A</strong><br>
1.38 miod 147: Contrary to the other MVME processor boards, this board has no on-board
148: devices; it just acts as a container for an <i>HYPERmodule</i> which provides
1.69 miod 149: one, two or four 88100 processors, and two or four 88200 (16KB cache) or 88204
1.38 miod 150: (64KB cache) CMMUs per processor.<br>
1.55 miod 151: All HYPERmodules combinations are supported, but M88200 1P128 and 1P512 have
152: not been tested.<br>
1.38 miod 153: External cards specific to the MVME188 family provide memory and serial ports.
1.70 miod 154: <br>
1.75 miod 155: Multi-processor kernels are supported on these boards.
1.70 miod 156: <li><strong>MVME197LE</strong><br>
157: An entry-level design similar to the MVME187, but based on the 88110 processor
158: with integrated MMU and cache controller.<br>
159: <li><strong>MVME197SP and MVME197DP</strong><br>
160: Improved versions of the MVME197LE, with one (SP) or two (DP) 88110 processors,
161: and one 88410 external cache controller per processor.<br>
1.80 miod 162: Multi-processor kernels are supported on these boards.
1.13 smurph 163: </ul>
164:
1.29 miod 165: <p>
1.45 miod 166: Besides various Motorola complete systems (<strong>M8120</strong>,
1.76 miod 167: <strong>Series 900</strong>, etc), this port also runs on the
1.45 miod 168: MVME187-based <strong>Triton Dolphin System 100</strong>.
169:
170: <p>
1.29 miod 171: <h4>Supported on-board devices</h4>
1.13 smurph 172:
1.29 miod 173: <p>
1.13 smurph 174: <ul>
1.70 miod 175: <li><strong>MVME187 and MVME197</strong>
1.13 smurph 176: <ul>
1.49 miod 177: <li>Cirrus Logic CL2400 serial ports (tty00-tty03/tty07<i>[M8120]</i>) (cl)
1.45 miod 178: <li>Intel 82596CA Ethernet interface
1.43 miod 179: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ie&sektion=4&arch=mvme88k">ie</a>)
1.45 miod 180: <li>NCR53c710 SCSI Controller
1.53 miod 181: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=osiop&sektion=4&arch=mvme88k">osiop</a>)
1.45 miod 182: <li>128KB SRAM (/dev/sram0)
183: <li>8KB NVRAM (/dev/nvram0)
1.13 smurph 184: </ul>
1.45 miod 185: </li>
186: <li><strong>MVME188</strong>
1.13 smurph 187: <ul>
1.45 miod 188: <li>serial ports on <i>SYSCON</i> board (ttya-ttyb) (dart)
189: <li>2KB NVRAM (/dev/nvram0)
1.13 smurph 190: </ul>
1.45 miod 191: </li>
1.29 miod 192: </ul>
1.13 smurph 193:
1.29 miod 194: <p>
1.45 miod 195: <h4>Supported VME boards</h4>
1.13 smurph 196:
1.29 miod 197: <p>
1.13 smurph 198: <ul>
1.77 miod 199: <li><strong>MVME327A</strong> SCSI and floppy Controller
200: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vsbic&sektion=4&arch=mvme88k">vsbic</a>),
201: currently limited to the SCSI interface
1.45 miod 202: <li><strong>MVME328</strong> High Performance SCSI Controller
1.43 miod 203: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vs&sektion=4&arch=mvme88k">vs</a>)
1.45 miod 204: <li><strong>MVME332XT</strong> High Performance Serial I/O Controller
1.42 miod 205: (8 serial ports, 1 parallel port) (vx)
1.45 miod 206: <li><strong>MVME376</strong> Ethernet Communications Controller
1.44 miod 207: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=le&sektion=4&arch=mvme88k">le</a>)
1.13 smurph 208: </ul>
209:
1.33 miod 210: <p>
211: <h4>Unsupported processor boards</h4>
212: <p>
213:
214: <p>
1.70 miod 215: These boards are currently not supported. There is nothing, apart from lack
1.72 saad 216: of available hardware, preventing them from being supported eventually.
1.33 miod 217: <ul>
1.48 miod 218: <li><strong>MVME180 <i>``Angelfire''</i> and MVME181</strong><br>
219: A low-cost, entry level board, featuring a single 88100 processor, two 88200
220: CMMUs and two on-board serial ports.
1.33 miod 221: </ul>
222:
1.13 smurph 223: <hr>
1.29 miod 224: <a name="install"></a>
225: <h3><font color="#0000e0">
226: <strong>Getting and installing OpenBSD/mvme88k:</strong>
227: </font></h3>
228:
229: <p>
1.52 david 230: The latest supported OpenBSD/mvme88k release is
1.93 sthen 231: <a href="54.html">OpenBSD 5.4</a>.
1.52 david 232: Here are the
1.93 sthen 233: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/5.4/mvme88k/INSTALL.mvme88k">
234: OpenBSD/mvme88k 5.4 installation instructions
1.52 david 235: </a>.
236:
237: <p>
1.38 miod 238: Snapshots are made available from time to time, in
1.92 sthen 239: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/snapshots/mvme88k">this location</a>
1.33 miod 240: as well as in a few
241: <a href="ftp.html">mirrors</a>.
242: Here are the
1.92 sthen 243: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/snapshots/mvme88k/INSTALL.mvme88k">
1.33 miod 244: OpenBSD/mvme88k snapshot installation instructions
245: </a> as well.
1.1 deraadt 246:
1.3 fn 247: <hr>
1.30 miod 248: <a name="details"></a>
1.29 miod 249: <h3><font color="#0000e0"><strong>Hardware details:</strong></font></h3>
1.13 smurph 250:
1.14 smurph 251: <p>
1.29 miod 252: As VME hardware is quite uncommon in the average retail place, and Motorola
253: 881x0-based hardware is even more rare, this section is here to satisfy the
254: well-founded curiosity about the mvme88k hardware.
255:
1.89 miod 256: <!--
1.48 miod 257: <p>
258: A comprehensive reference about the m88k processor and the various designs
259: built upon it is being gathered by Paul Weissmann at
1.57 miod 260: <a href="http://badabada.org/">badabada</a>.
1.89 miod 261: -->
1.48 miod 262:
1.52 david 263: <a name="pics"></a>
1.29 miod 264: <p>
265: Pictures of a Motorola 900 modular chassis, with a 33MHz MVME187 CPU board,
266: 32MB RAM, 4 MVME332XT serial boards, and an Archive 250MB QIC tape drive.
1.14 smurph 267: <ul>
1.29 miod 268: <li><a href="images/mvme187-1.jpg">MVME187 Series 900 (front view)</a>
1.14 smurph 269: <li><a href="images/mvme187-2.jpg">MVME187 Series 900 (rear view)</a>
270: <li><a href="images/mvme187-3.jpg">MVME187 Series 900 (rear view w/terminal)</a>
271: <li><a href="images/mvme187-4.jpg">MVME187 Series 900 (rear view close up)</a>
272: <li><a href="images/mvme188-2.jpg">MVME188 Dual proc board</a>
273: </ul>
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