Annotation of www/arc.html, Revision 1.36
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4: <title>OpenBSD/arc</title>
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1.36 ! horacio 10: <meta name="copyright" content="This document copyright 1996-2002 by OpenBSD.">
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1.23 johns 13: <BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#23238E">
1.1 deraadt 14:
15: <h2>OpenBSD/arc</h2>
16:
17: <hr>
18: <h3><strong>History and Status:</strong></h3>
19:
20: <p>
21: The early history is not very clear. Apparently the first work was
22: done by CMU as part of their Mach project. The initial hardware was
1.26 pefo 23: the DEC R2000/R3000-based DECstations. This code was later used by
1.1 deraadt 24: both the Sprite and BSD groups. The 4.4BSD code, known as the `pmax'
25: port, was made freely available in mid '93. It was merged into the
26: NetBSD tree by a variety of people, but has never been very stable,
27: reliable, or complete. Compiler toolkit problems have plagued the
28: port because the standard a.out executable format is an imperfect
29: match to the MIPS architecture.
30: </p>
31:
32: <p>
1.9 niklas 33: Per Fogelström became familiar with the code after porting it to a
1.1 deraadt 34: home-built IDT R3081 based board. Subsequently he added R4400 support
35: when porting it to the MIPS R4400 Acer PICA board. Willowglen
36: Singapore purchased a second PICA board for Theo de Raadt so that he
37: could improve the port for use as a development system for an internal
1.20 imp 38: project. Since then Theo, Per and others have completed the port.
1.1 deraadt 39: </p>
40:
41: <p>
42: The Acer PICA is a dead platform. Acer no longer makes the machine,
43: but even worse the machines are very rare. But the Acer PICA was just
44: one of a whole family of similar machines built by other companies
1.28 imp 45: like MIPS, Deskstation, NEC, Olivetti. These machines were known as
1.33 imp 46: ARC machines, built according to the
47: <a href="http://www.microsoft.com/hwdev/download/respec/riscspec.zip">
48: Advanced RISC Computing</a> specification.
1.15 imp 49: No new ARC BIOS machines for MIPS will likely be manufactured.
50: Microsoft has announced that it will no longer support MIPS after NT 4.0.
1.24 todd 51: OpenBSD/arc provides a good alternative to NT, especially now that no more OS
1.34 imp 52: updates for NT MIPS will happen. Deskstation has ceased business operations,
53: so there will be no more ARC MIPS machines from them.
1.1 deraadt 54: </p>
55:
56: <p>
57: As a result, the code has been modified to make it more versatile, and
58: eventually it should support a larger whole range of ARC machines.
59: Hopefully a port will result that can run on the full range of MIPS
1.33 imp 60: processors: R4000, R4xx, R43xx, R4400, R46x0, R4700, R5000,
1.30 imp 61: R8000 and R10000.
1.1 deraadt 62: </p>
63:
64: <p>
1.22 johns 65: <h3>Currently the port supports the following:</h3>
1.12 deraadt 66: <ul>
67: <li>Acer Pica: 150MHz R4400PC, ISA, with onboard ethernet, scsi, video,
1.35 jufi 68: and serial.</li>
1.32 imp 69: <li><a href="http://www.deskstation.com">Deskstation</a>
1.35 jufi 70: Tyne: 133MHz R4600, ISA and VLB.</li>
1.32 imp 71: <li><a href="http://www.deskstation.com">Deskstation</a>
1.35 jufi 72: rPC44: 100MHz R4400PC, EISA bus.</li>
73: <li><a href="http://www.algor.co.uk">Algorithmics</a> R4000/R5000/R10000 evaluation board</li>
74: <li>NEC RiscStation works.</li>
1.12 deraadt 75: </ul>
1.11 deraadt 76: </p>
1.22 johns 77:
78: <p>
79: <h3>Supported devices include:</h3>
80: <ul>
1.35 jufi 81: <li> graphics:</li>
1.22 johns 82: <ul>
1.35 jufi 83: <li> built-in S3 VGA graphics adapter on PICA.</li>
84: <li> Standard VGA graphics adapter on rPC44 and Tyne.</li>
85: <li> Note that X11R6 currently supports only S3 boards.</li>
1.22 johns 86: </ul>
87:
1.35 jufi 88: <li> keyboard:</li>
1.22 johns 89: <ul>
1.35 jufi 90: <li> Standard PC compatible keyboard with optionally driver softloaded keymaps.</li>
1.22 johns 91: </ul>
92:
1.35 jufi 93: <li> mouse:</li>
1.22 johns 94: <ul>
1.35 jufi 95: <li> PS2 mouse on PICA</li>
96: <li> Serial mouse on /dev/tty00 on rPC44 and Tyne.</li>
1.22 johns 97: </ul>
98:
1.35 jufi 99: <li> serial ports:</li>
1.22 johns 100: <ul>
1.35 jufi 101: <li> on-board tty00 and tty01 (PICA. can not yet be used as console)</li>
102: <li> ISA tty00 and tty01 on systems without serial ports on the motherboard (Tyne).</li>
103: <li> ISA tty02 and tty03 on all ISA capable systems.</li>
1.22 johns 104: </ul>
105:
1.35 jufi 106: <li> parallel ports:</li>
1.22 johns 107: <ul>
1.35 jufi 108: <li> parallel ports is supported on-board (PICA) or on ISA (rPC44 and Tyne).</li>
1.22 johns 109: </ul>
110:
1.35 jufi 111: <li> floppy:</li>
1.22 johns 112: <ul>
1.35 jufi 113: <li> floppy is supported on PICA only.</li>
1.22 johns 114: </ul>
115:
1.35 jufi 116: <li> ethernet:</li>
1.22 johns 117: <ul>
1.35 jufi 118: <li> on-board SONIC ethernet controller (PICA only)</li>
119: <li> 3Com Etherlink boards (All ISA capable systems)</li>
120: <li> NE2000 compatible ISA boards.</li>
1.22 johns 121: </ul>
122:
1.35 jufi 123: <li> SCSI:</li>
1.22 johns 124: <ul>
1.35 jufi 125: <li> on-board NCR53C96 SCSI controller (PICA)</li>
126: <li> VLB "Buslogic BT-440C/445C" SCSI controller.</li>
127: <li> ISA "Buslogic BT-545" SCSI controller on rPC44.</li>
1.22 johns 128: </ul>
129:
1.35 jufi 130: <li> IDE:</li>
1.22 johns 131: <ul>
1.35 jufi 132: <li> IDE disks via wd driver on ISA bus. Bootable only on Deskstation systems.</li>
1.22 johns 133: </ul>
1.30 imp 134:
1.35 jufi 135: <li> Misc:</li>
1.30 imp 136: <ul>
1.35 jufi 137: <li> Joystick on ISA bus.</li>
1.30 imp 138: </ul>
1.22 johns 139: </ul>
140: </p>
141:
1.17 deraadt 142: <p>
1.22 johns 143: <h3>The following ports are also being worked on:</h3>
1.17 deraadt 144: <ul>
1.35 jufi 145: <li>Algorithmics P-4032 and P-5064 boards.</li>
1.17 deraadt 146: </ul>
147: </p>
1.11 deraadt 148:
149: <p>
1.1 deraadt 150: The people working the most on OpenBSD/arc currently consists of
1.13 deraadt 151: Per Fogelström, Theo de Raadt, Niklas Hallqvist, Warner Losh,
152: and a few others. Of course, others are very welcome!
1.1 deraadt 153: </p>
154:
155: <p>
1.22 johns 156: <h3>Recent developments:</h3>
1.1 deraadt 157: <ul>
1.35 jufi 158: <li>PCI bus support on Algorithmics P-4032 and P-5064 boards.</li>
159: <li>Support for <a href="http://www.qedinc.com">QED</a> RM52x0 processors. (R5000 derivates).</li>
160: <li>Kernel DDB functional.</li>
1.1 deraadt 161: </ul>
162: </p>
163:
1.14 deraadt 164: <p>
1.27 imp 165: The ARC port is complete, including everything you can expect
1.14 deraadt 166: on any OpenBSD port.
167: </p>
168:
1.1 deraadt 169: <hr>
1.4 deraadt 170: <p>
1.35 jufi 171: <a href="ftp.html">Snapshots are made available from time to time.</a>
1.1 deraadt 172:
173: <p>
1.35 jufi 174: Send mail to <a href="mailto:imp@openbsd.org">Warner Losh</a> and
175: <a href="mailto:pefo@openbsd.org">Per Fogelström</a>.
1.1 deraadt 176: </p>
177:
178: <hr>
1.35 jufi 179: <a href="plat.html"><img height=24 width=24 src=back.gif border=0 alt=OpenBSD></a>
180: <a href="mailto:www@openbsd.org">www@openbsd.org</a>
1.1 deraadt 181: <br>
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