=================================================================== RCS file: /cvsrepo/anoncvs/cvs/www/powerpc.html,v retrieving revision 1.22 retrieving revision 1.23 diff -u -r1.22 -r1.23 --- www/powerpc.html 1999/11/09 05:32:30 1.22 +++ www/powerpc.html 2000/10/26 14:04:09 1.23 @@ -2,143 +2,203 @@ OpenBSD/powerpc - + - + - + - + +[OpenBSD] +

+

powerpc

-

OpenBSD/powerpc

+

Status:

+

+This is a port of OpenBSD to the Apple PowerMac platform. -

-

Status:

+

History:

-This is a rather new port. It supports some types of machines with -PowerPC processors in them -- but not all. Even though -there are standards committees trying to resolve the problem, there are -significant differences between various PowerPC computers, even when made -by the same vendor! This port will run on some machines, but not on others. -Check the list below. +The powerpc port was first imported into OpenBSD at the end of 1996. +Portions of the kernel port came from the NetBSD/macppc port, and the +userland and build ports came from Dale Rahn.

-To work, a machine MUST have some variety of OpenBoot firmware! +Dale added in ELF binary support, and him and Per Fogelstrom +continued on the general driver support for the next few releases. +Support was added for OpenFirmware, VI Power4e boards, MCG Powerstack +machines, Dec 21040, VGA terminal support, and so on.

-The processor support is quite stable at this point. -Driver support is currently somewhat limited, due to most PCI devices -only having been tested on little-endian machines. Additional device -support for Macintosh hardware systems is under development any -programming information for any recent Mac hardware would improve -this situation. +In 1998, the focus shifted towards the Apple machines, and Dale Rahn +started work to make the range of iMacs and PowerMacs work with this port. +Due to this, official powerpc releases were not made for the 2.6 and 2.7 +releases as work continued. A number of compiler loader issues were resolved, +a lot of iMac driver support was added, and compatibility with older systems +was withdrawn to fully concentrate on the Apple machines.

-The following processors are supported: 603, 603e, 604, 604ev, 750. +And now, the 2.8 release at the end of 2000 will be including +an official powerpc port. +

Supported Hardware:

-The port does not yet use real device drivers. It uses OpenFirmware -for all device driver needs: console, disk, ethernet. It can be -installed from netboot, floppy and network or cdrom. Netroot -support exists, but is untested. +Currently only New World machines are supported. Tested working machines +are the iMac machines Rev A - Rev C, and the PowerMac G4 systems including +the Cube. To improve the list below, please mail your dmesg after +installation to dmesg@openbsd.org, +as detailed in the FAQ. -The port has two versions of the kernel, one which only uses openfirmware -for all devices, and a version that has been coded to support some MCG -PowerStack and VI series machines. -

+

+Machines +

-Known working hardware: +Onboard I/O modules (obio)

+ +

+PCI-Bridges

-
  • V-I + +

    +Video Cards

    + +

    Ethernet +

    + +

    Hard Drive +

    -

    -Hardware support under development: +

    ATAPI Drives

    + +

    SCSI Host Adapters

    + +

    SCSI Storage +

    +

    USB Controllers/Hubs +

    + +

    USB Devices +

    + +

    -Machines that DO NOT WORK. +

    Unsupported Hardware:

    -

    History:

    - +

    Root Drive:

    -The powerpc specific portions of the kernel came from the NetBSD port -by Wolfgang Solfrank. The userland and build tools came from an -independent and incomplete port by Dale Rahn. Hopefully pieces -from that other port will be merged, device driver support for -interrupts and some real driver support. -The conversion to the Wolfgang port was done because it was running -multiuser and the other port was still single user out of memory ramdisk -(no fully working device drivers). +With multiple drives installed in the system, only certain drives can +be configured as an OpenBSD root drive. Any other configurations than +those below will not be able to properly detect which drive is the root +drive, and so any attempt with either prompt for a root drive, or fail.

    -After that work was done Per Fogelstrom added support for the VI Power4e -vme board, removing openfirmware device support in the processes. (2.3 release) +

    + +

    X Resolution:

    -For the 2.4 release, support for the openfirmware devices were added back -in a compatible fashion such that mixed ofw drivers and hardware drivers -could be supported. After that was finished, the power4e support was adapted -to work on the MCG PowerStack machines. Dec 21040, and some vga support was -added, vga cannot be used as console yet, but can be used as a terminal. -No X servers are supported, but the mechanism to access vga via mmap exists. +The current X server has no mechanism to change the resolution +of the display. To change the resolution, it is necessary to boot MacOS +and change to the desired resolution under MacOS. It will save that +resolution and OpenFirmware will boot in that resolution until connected +to a different monitor. The X server will run in whatever resolution +OpenFirmware boots in. + +

    +

    If you are looking for to test new pre-release features, you can +try one of the snapshots. +For the powerpc architecture, snapshots are made available from time to time.

    -For 2.5 support continued at the previous level as 2.4. -

    -For 2.6 support an offical release was not made for the powerpc port. -Work on the iMac had started and compiler loader issues had not been -resolved which prevented the system from building out of the tree. -

    -Post 2.6, iMac support has been added, further development is underway -to support the imac devices better and add support for other systems. -Initally with the imac driver support, compatibility with older -systems was lost. This is primarily due to a lack of testing, these -systems will be supported once the system changes are backported. -

    Contact -Theo de Raadt or -Dale Rahn +Theo de Raadt or +Dale Rahn if you are interested in working with other people on this, or need more information.

    -OpenBSD -www@openbsd.org +[OpenBSD] +www@openbsd.org
    -$OpenBSD: powerpc.html,v 1.22 1999/11/09 05:32:30 rahnds Exp $ +$OpenBSD: powerpc.html,v 1.23 2000/10/26 14:04:09 avsm Exp $