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migration-guides: cover FIT_UBOOT_ENV

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Add a hint for users using the UBOOT_ENV variable and the
kernel-fitimage.bbclass.

(From yocto-docs rev: 4d04531d4015bb61e68dfbed87d743772b6178b7)

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Reviewed-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Adrian Freihofer
2025-02-24 09:27:29 +01:00
committed by Richard Purdie
parent f502a9a108
commit 87cccf1bb8
1 changed files with 8 additions and 0 deletions
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8
documentation/migration-guides/migration-5.2.rst
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@@ -182,3 +182,11 @@ Miscellaneous changes
- :term:`ZSTD_COMPRESSION_LEVEL` is now a plain integer number instead of a dash-prefixed
command-line option (e.g. it should be set to ``3`` rather than ``-3``).
- Until now, the variable :term:`UBOOT_ENV` was processed both by the U-Boot
recipe and by the ``kernel-fitimage.bbclass``. However, adding a U-Boot
script to the kernel FIT image is a different and independent thing, which
also requires an independent variable.
Therefore, the :term:`UBOOT_ENV` is no longer handled by the
``kernel-fitimage.bbclass``. There is a new variable :term:`FIT_UBOOT_ENV`
which should be used for adding a U-Boot script to a FIT image.