ref-manual/variables.rst: document UBOOT_VERSION

Added by commit debc691853e2 ("u-boot: Allow for customizing
installed/deployed file names") in OE-Core.

(From yocto-docs rev: a9a4bcc754b9400fa6d3c0297e86771f03325590)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index d722d722fd..a41fa951aa 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -10804,6 +10804,12 @@ system and gives an overview of their function and contents.
       passes and uses "all" for the target during the U-Boot building
       process.
 
+   :term:`UBOOT_VERSION`
+      When naming the files that are installed and deployed, the package version
+      (:term:`PV`) and revision (:term:`PR`) are part of the filename. The
+      :term:`UBOOT_VERSION` variable contains this information, but can be
+      overridden if desired.
+
    :term:`UKIFY_CMD`
       When inheriting the :ref:`ref-classes-uki` class,
       `ukify <https://www.freedesktop.org/software/systemd/man/latest/ukify.html>`__ command to build