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docs/system/arm/aspeed: Support vbootrom for AST2700

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Using the vbootrom image support and the boot ROM binary is
now passed via the -bios option, using the image located in
pc-bios/ast27x0_bootrom.bin.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Nabih Estefan <nabihestefan@google.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250424075135.3715128-7-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Jamin Lin 2025-04-24 15:51:34 +08:00 • committed by Cédric Le Goater
parent 3eb01cfe9b
commit d2b857ef9a
1 changed files with 28 additions and 1 deletions
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29
docs/system/arm/aspeed.rst
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@ -306,7 +306,14 @@ Images can be downloaded from the ASPEED Forked OpenBMC GitHub release repositor
Booting the ast2700-evb machine
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Boot the AST2700 machine from the flash image, use an MTD drive :
Boot the AST2700 machine from the flash image.
There are two supported methods for booting the AST2700 machine with a flash image:
Manual boot using ``-device loader``:
It causes all 4 CPU cores to start execution from address ``0x430000000``, which
corresponds to the BL31 image load address.
.. code-block:: bash
@ -326,6 +333,26 @@ Boot the AST2700 machine from the flash image, use an MTD drive :
-drive file=${IMGDIR}/image-bmc,format=raw,if=mtd \
-nographic
Boot using a virtual boot ROM (``-bios``):
If users do not specify the ``-bios option``, QEMU will attempt to load the
default vbootrom image ``ast27x0_bootrom.bin`` from either the current working
directory or the ``pc-bios`` directory within the QEMU source tree.
.. code-block:: bash
$ qemu-system-aarch64 -M ast2700-evb \
-drive file=image-bmc,format=raw,if=mtd \
-nographic
The ``-bios`` option allows users to specify a custom path for the vbootrom
image to be loaded during boot. This will load the vbootrom image from the
specified path in the ${HOME} directory.
.. code-block:: bash
-bios ${HOME}/ast27x0_bootrom.bin
Aspeed minibmc family boards (``ast1030-evb``)
==================================================================