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docs: aspeed: Give an example of booting a kernel

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A common use case for the ASPEED machine is to boot a Linux kernel.
Provide a full example command line.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Message-id: 20211117065752.330632-4-joel@jms.id.au
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Joel Stanley 2021-11-17 14:57:51 +08:00 committed by Peter Maydell
parent 38b1ed6c90
commit 9d5dcb8512
1 changed files with 12 additions and 3 deletions
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15
docs/system/arm/aspeed.rst
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@ -78,9 +78,9 @@ Missing devices
Boot options
------------
The Aspeed machines can be started using the ``-kernel`` option to
load a Linux kernel or from a firmware. Images can be downloaded from
the OpenBMC jenkins :
The Aspeed machines can be started using the ``-kernel`` and ``-dtb`` options
to load a Linux kernel or from a firmware. Images can be downloaded from the
OpenBMC jenkins :
https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/
@ -88,6 +88,15 @@ or directly from the OpenBMC GitHub release repository :
https://github.com/openbmc/openbmc/releases
To boot a kernel directly from a Linux build tree:
.. code-block:: bash
$ qemu-system-arm -M ast2600-evb -nographic \
-kernel arch/arm/boot/zImage \
-dtb arch/arm/boot/dts/aspeed-ast2600-evb.dtb \
-initrd rootfs.cpio
The image should be attached as an MTD drive. Run :
.. code-block:: bash