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Pegasos

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This article is about the computer platform. For the mythical horse, seePegasus.For the Swiss assisted death organization, seePegasos Swiss Association.
GenesiOpen Desktop Workstation,built around the Pegasos II

Pegasoswas sold byGenesi USA, Inc.,and designed by their research and design partnerbplan GmbHbased inFrankfurt,Germany.It is aMicroATXmotherboardpowered by aPowerPC 750CXeorPowerPC 7447microprocessor,featuring threePCIslots, oneAGPslot, twoEthernetports (10/100/1000 & 10/100),USB,DDR,AC'97sound, andFireWire.Like the PowerPCMacintoshcounterparts, it boots viaOpen Firmware.

Forhard disk drivebooting the Open Firmware implementation calledSmartFirmwarerequires anRDBboot partition that contains either anaffs1orext2partition.[1][2]Note that any changes to theext2on-disc format may prevent booting. It is, however, possible to add someext3features so long as the volume can still be recognized asext2.

There are two versions of the system: The Pegasos I and the Pegasos II.

Pegasos I

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The Pegasos I supports the IBM Microprocessor 750CXe CPU (G3), has 100 Mbit/s Ethernet onboard and uses registered 168-pin PC133 SDR-SDRAM.It was discontinued after ahardware bugin the MAI Logic ArticiaSnorthbridgewas discovered. Later versions of the Pegasos I came with a hardware fix which was designated "April". Further improvements were made in an "April 2" design which solved further problems. It has been replaced by the Pegasos II.

Pegasos II

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Pegasos 2nd version (G4), inner view
Pegasos II motherboard Version 1.0 (2B3)

The Pegasos II uses a Marvell Discovery II MV64361 northbridge, removing the need for the "April" chipset fix on the previous model, and additionally offers integrated Gigabit LAN andDDRsupport, and the ability to use the Freescale "G4" processor line.

The 750CXe (G3) CPU boards do not require a cooling fan, and thus has been marketed as "cool computing". The current G4 boards are based around the Freescale MPC7447 chip with a small fan. Passive cooling solutions are possible and sold with the "Home Media and Communication System", which is based on Pegasos II G4.

Genesi discontinued production of the Pegasos II in 2006, as the result of new European Union legislation requiring the use of more expensive and lead-free solder[3]under theRestriction of Hazardous Substances Directive(RoHS).

Open Desktop Workstation

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The Open Desktop Workstation, orODW,is a standardized version of the Pegasos II. It was the first open source based PowerPC computer and gave PowerPC a host/target development environment. Genesi has released the complete specifications (design and component listing) free of charge. The ODW-derived Home Media Center won the Best in Show award at the Freescale Technology Forum in 2005,[4]have anATIcertification,[5]and a "Ready for IBM Technology" certification.[6]

Specification

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Operating system support

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Several operating systems run on the Pegasos Platform. Genesi is very eager to support any efforts to port and optimize operating systems or applications for their computers.

  • MorphOSis broadly compatible with legacyCommodore Amigaapplications which profess to be "OS friendly" (meaning they do not access native Amiga hardware directly), as well as a growing number of native applications. Genesi is the primary sponsor for MorphOS.
  • Amiga OS 4.1support was announced by Hyperion on 31 January 2009.
  • Linuxdistributions includingDebian GNU/Linux,MontaVista Linux,openSUSE,Yellow Dog Linux,Gentoo LinuxandCrux PPCare also available for the Pegasos. Support for the Pegasos as a platform device has been integrated into the Linux kernel mainline as of kernel version 2.6.13.
  • Mac OS– It is possible to run theClassic Mac OSandMac OS Xon the Pegasos using Mac-on-Linux, although doing so is reportedly in violation ofApple'sEULA.[8]
  • NetBSDsupport introduced since release 5.0[9]
  • OpenBSD– Genesi hired a developer in 2002 to port OpenBSD to the Pegasos II. Both Pegasos I and Pegasos II boards were supported. The relationship ended poorly in 2004 with the developer not being paid for the work that he has done (due to Genesi's cashflow problems), and due to lack of documentation from Genesi/bPlan, support was completely removed after one release cycle.[10][11]
  • OpenSolaris– Genesi/Freescale is initial supporter of theOpenSolarisport to PowerPC and the Pegasos II being used as the reference platform for development.
  • QNXsupports the Pegasos platform.[12]
  • Symobiis available as demo image.

Firmware

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  • Pegasos I/G3 "PRE-APRIL", Board: 1A (0.1b73), CPU: 750 CX 1.0, SF: 1.1 (20020814)
  • Pegasos I/G3, Board: 1A1 (0.1b112), CPU: 750 CX 1.0, SF:1.1 (20021203121657)
  • Pegasos I/G3, Board: 1A1 (0.1b114), CPU: 750 CX 1.0, SF: 1.1 (20030317114750)
  • Pegasos II/G4, Board: 1.1, CPU: 744X 1.1, SF: 1.2 (20040224)
  • Pegasos II/G3, Board: 1.1 (0.2b1), CPU: 750 CX 1.0, SF: 1.2 (20040402193939)
  • Pegasos II/G4, Board: 1.1, CPU: 744X 1.1, SF: 1.1 (20040405)
  • Pegasos II/G4, Board: 1.1, CPU: 744X 1.1, SF: 1.2 (20040405)
  • Pegasos II/G4, Board: 1.2, CPU: 744X 1.2, SF: 1.1 (20040505)
  • Pegasos II/G4, Board: 1.0 (2B3), CPU: 744X 1.0, SF: 1.2 (20040810112413)
  • Pegasos II/G4, Board: 1.2, CPU: 744X 1.1, SF: 1.2 (20040810112413)
  • Pegasos II/G3, Board: 1.2, CPU: 750 CX 1.0, SF: 1.2 (20040810112413)
  • Pegasos II/G4, Board: 1.2 (2B2), CPU: 744X 1.2, SF: 1.2 (20040810112413)
  • Pegasos II/G4, Board: 1.2, CPU: 744X 1.2, SF: 1.2 (20050602111451)
  • Pegasos II/G4, Board: 1.2 (2B5), CPU: 744X 1.2, SF: 1.2 (20050808153840)
  • Pegasos II/G4, Board: 1.2 (2B5),CPU: 744X 1.2, SF: 1.2 (20051216161829)

IKARUS low level console

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PressEscat a serial console (115200 baud) whilebooting.

  • a <addr> address
  • b
  • c CPU PVR value
  • g <> go
  • i <> in
  • l
  • m memory size?
  • o <> out
  • q shutdown
  • r read
  • s
  • v
  • w <32 bit value> write
  • x exit
  • z
  • +inc address
  • -dec address
  • Space
=B00000000,I00,O00;

References

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  1. ^"Gentoo Linux Handbook Page —".Archived fromthe originalon 2008-10-02.Retrieved2009-05-12.
  2. ^"PegasosQuickStart - openSUSE".Archived fromthe originalon 2009-02-26.Retrieved2010-06-09.
  3. ^Proven, Liam (2007-01-03)."The Amiga is dead. Long live the Amiga!".Archived from the original on 2009-02-24.Retrieved2009-02-18.{{cite web}}:CS1 maint: unfit URL (link)
  4. ^"Freescale Technology Forum Best of Show winner exemplifies cool, innovative technology".Freescale.com.2005-06-21. Archived fromthe originalon 2012-02-05.Retrieved2016-07-17.
  5. ^"CERTIFIED BY ATI - Product List".Archived fromthe originalon 2007-10-25.Retrieved2007-02-15.
  6. ^"IBM - Open Desktop Workstation".Archived fromthe originalon 2007-02-03.Retrieved2007-02-15.
  7. ^"Power Developer • pegasos2 2gb ram? - Page 2".Powerdeveloper.org.Retrieved2016-07-17.
  8. ^"Terra Soft -- Linux for PS3, IBM Power, Mercury Cell, and Apple PowerPC".Archived fromthe originalon 2007-02-22.Retrieved2007-03-27.
  9. ^"NetBSD/ofppc".De.netbsd.org.Retrieved2016-07-17.
  10. ^"OpenBSD/pegasos".Openbsd.org.Retrieved2016-07-17.
  11. ^"'Re: Pegasos (Dale's Side of the Story)' - MARC ".Marc.info.Retrieved2016-07-17.
  12. ^"QNX Partners".Qnx.com.Retrieved2016-07-17.
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