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aspeed: Introduce a 'boot-emmc' machine option

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The default behavior of some Aspeed machines is to boot from the eMMC
device, like the rainier-bmc. Others like ast2600-evb could also boot
from eMMC if the HW strapping boot-from-eMMC bit was set. Add a
property to set or unset this bit. This is useful to test boot images.

For now, only activate this property on the ast2600-evb and rainier-bmc
machines for which eMMC images are available or can be built.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Cédric Le Goater 2024-07-17 08:30:22 +02:00 • committed by Cédric Le Goater
parent 621845a9e3
commit 056b779eaf
2 changed files with 32 additions and 0 deletions
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docs/system/arm/aspeed.rst
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@ -123,6 +123,8 @@ To boot the machine from the flash image, use an MTD drive :
Options specific to Aspeed machines are :
* ``boot-emmc`` to set or unset boot from eMMC (AST2600).
* ``execute-in-place`` which emulates the boot from the CE0 flash
device by using the FMC controller to load the instructions, and
not simply from RAM. This takes a little longer.