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