1dd7754aca
Add missing space to fix character formatting where it was missed in
two places.
Fixes: 623d9065b6 (docs/system/ppc: Document running Linux on AmigaNG machines)
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20240324161148.4650D4E601F@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
162 lines
5.5 KiB
ReStructuredText
162 lines
5.5 KiB
ReStructuredText
=========================================================
|
||
AmigaNG boards (``amigaone``, ``pegasos2``, ``sam460ex``)
|
||
=========================================================
|
||
|
||
These PowerPC machines emulate boards that are primarily used for
|
||
running Amiga like OSes (AmigaOS 4, MorphOS and AROS) but these can
|
||
also run Linux which is what this section documents.
|
||
|
||
Eyetech AmigaOne/Mai Logic Teron (``amigaone``)
|
||
===============================================
|
||
|
||
The ``amigaone`` machine emulates an AmigaOne XE mainboard by Eyetech
|
||
which is a rebranded Mai Logic Teron board with modified U-Boot
|
||
firmware to support AmigaOS 4.
|
||
|
||
Emulated devices
|
||
----------------
|
||
|
||
* PowerPC 7457 CPU (can also use ``-cpu g3, 750cxe, 750fx`` or ``750gx``)
|
||
* Articia S north bridge
|
||
* VIA VT82C686B south bridge
|
||
* PCI VGA compatible card (guests may need other card instead)
|
||
* PS/2 keyboard and mouse
|
||
|
||
Firmware
|
||
--------
|
||
|
||
A firmware binary is necessary for the boot process. It is a modified
|
||
U-Boot under GPL but its source is lost so it cannot be included in
|
||
QEMU. A binary is available at
|
||
https://www.hyperion-entertainment.com/index.php/downloads?view=files&parent=28.
|
||
The ROM image is in the last 512kB which can be extracted with the
|
||
following command:
|
||
|
||
.. code-block:: bash
|
||
|
||
$ tail -c 524288 updater.image > u-boot-amigaone.bin
|
||
|
||
The BIOS emulator in the firmware is unable to run QEMU‘s standard
|
||
vgabios so ``VGABIOS-lgpl-latest.bin`` is needed instead which can be
|
||
downloaded from http://www.nongnu.org/vgabios.
|
||
|
||
Running Linux
|
||
-------------
|
||
|
||
There are some Linux images under the following link that work on the
|
||
``amigaone`` machine:
|
||
https://sourceforge.net/projects/amigaone-linux/files/debian-installer/.
|
||
To boot the system run:
|
||
|
||
.. code-block:: bash
|
||
|
||
$ qemu-system-ppc -machine amigaone -bios u-boot-amigaone.bin \
|
||
-cdrom "A1 Linux Net Installer.iso" \
|
||
-device ati-vga,model=rv100,romfile=VGABIOS-lgpl-latest.bin
|
||
|
||
From the firmware menu that appears select ``Boot sequence`` →
|
||
``Amiga Multiboot Options`` and set ``Boot device 1`` to
|
||
``Onboard VIA IDE CDROM``. Then hit escape until the main screen appears again,
|
||
hit escape once more and from the exit menu that appears select either
|
||
``Save settings and exit`` or ``Use settings for this session only``. It may
|
||
take a long time loading the kernel into memory but eventually it boots and the
|
||
installer becomes visible. The ``ati-vga`` RV100 emulation is not
|
||
complete yet so only frame buffer works, DRM and 3D is not available.
|
||
|
||
Genesi/bPlan Pegasos II (``pegasos2``)
|
||
======================================
|
||
|
||
The ``pegasos2`` machine emulates the Pegasos II sold by Genesi and
|
||
designed by bPlan. Its schematics are available at
|
||
https://www.powerdeveloper.org/platforms/pegasos/schematics.
|
||
|
||
Emulated devices
|
||
----------------
|
||
|
||
* PowerPC 7457 CPU (can also use ``-cpu g3`` or ``750cxe``)
|
||
* Marvell MV64361 Discovery II north bridge
|
||
* VIA VT8231 south bridge
|
||
* PCI VGA compatible card (guests may need other card instead)
|
||
* PS/2 keyboard and mouse
|
||
|
||
Firmware
|
||
--------
|
||
|
||
The Pegasos II board has an Open Firmware compliant ROM based on
|
||
SmartFirmware with some changes that are not open-sourced therefore
|
||
the ROM binary cannot be included in QEMU. An updater was available
|
||
from bPlan, it can be found in the `Internet Archive
|
||
<http://web.archive.org/web/20071021223056/http://www.bplan-gmbh.de/up050404/up050404>`_.
|
||
The ROM image can be extracted from it with the following command:
|
||
|
||
.. code-block:: bash
|
||
|
||
$ tail -c +85581 up050404 | head -c 524288 > pegasos2.rom
|
||
|
||
Running Linux
|
||
-------------
|
||
|
||
The PowerPC version of Debian 8.11 supported Pegasos II. The BIOS
|
||
emulator in the firmware binary is unable to run QEMU‘s standard
|
||
vgabios so it needs to be disabled. To boot the system run:
|
||
|
||
.. code-block:: bash
|
||
|
||
$ qemu-system-ppc -machine pegasos2 -bios pegasos2.rom \
|
||
-cdrom debian-8.11.0-powerpc-netinst.iso \
|
||
-device VGA,romfile="" -serial stdio
|
||
|
||
At the firmware ``ok`` prompt enter ``boot cd install/pegasos``.
|
||
|
||
Alternatively, it is possible to boot the kernel directly without
|
||
firmware ROM using the QEMU built-in minimal Virtual Open Firmware
|
||
(VOF) emulation which is also supported on ``pegasos2``. For this,
|
||
extract the kernel ``install/powerpc/vmlinuz-chrp.initrd`` from the CD
|
||
image, then run:
|
||
|
||
.. code-block:: bash
|
||
|
||
$ qemu-system-ppc -machine pegasos2 -serial stdio \
|
||
-kernel vmlinuz-chrp.initrd -append "---" \
|
||
-cdrom debian-8.11.0-powerpc-netinst.iso
|
||
|
||
aCube Sam460ex (``sam460ex``)
|
||
=============================
|
||
|
||
The ``sam460ex`` machine emulates the Sam460ex board by aCube which is
|
||
based on the AMCC PowerPC 460EX SoC (that despite its name has a
|
||
PPC440 CPU core).
|
||
|
||
Firmware
|
||
--------
|
||
|
||
The board has a firmware based on an older U-Boot version with
|
||
modifications to support booting AmigaOS 4. The firmware ROM is
|
||
included with QEMU.
|
||
|
||
Emulated devices
|
||
----------------
|
||
|
||
* PowerPC 460EX SoC
|
||
* M41T80 serial RTC chip
|
||
* Silicon Motion SM501 display parts (identical to SM502 on real board)
|
||
* Silicon Image SiI3112 2 port SATA controller
|
||
* USB keyboard and mouse
|
||
|
||
Running Linux
|
||
-------------
|
||
|
||
The only Linux distro that supported Sam460ex out of box was CruxPPC
|
||
2.x. It can be booted by running:
|
||
|
||
.. code-block:: bash
|
||
|
||
$ qemu-system-ppc -machine sam460ex -serial stdio \
|
||
-drive if=none,id=cd,format=raw,file=crux-ppc-2.7a.iso \
|
||
-device ide-cd,drive=cd,bus=ide.1
|
||
|
||
There are some other kernels and instructions for booting other
|
||
distros on aCube's product page at
|
||
https://www.acube-systems.biz/index.php?page=hardware&pid=5
|
||
but those are untested.
|