slides/sysdev-bootloaders-u-boot: Update device-tree location

Since v2024.07 device-trees are fetched by U-Boot from the Linux kernel project. Now with CONFIG_OF_UPSTREAM we can choose whether we want to use legacy device-trees in arch/ARCH/dts or the Linux ones in dts/upstream/src/ARCH/VENDOR/. Update the slides to talk about this new location. Signed-off-by: Bastien Curutchet <[email protected]>
bootlin · Nov 20, 2024 · 02c122a · 02c122a
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commit 02c122a
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/slides/sysdev-bootloaders-u-boot/sysdev-bootloaders-u-boot.tex b/slides/sysdev-bootloaders-u-boot/sysdev-bootloaders-u-boot.tex
@@ -181,7 +181,11 @@ \subsection{The U-boot bootloader}
   \item Initially mainly used by Linux, now also used by U-Boot,
     Barebox, TF-A, etc.
   \item Used by U-Boot on most platforms.
-  \item Device Tree files located in \code{arch/ARCH/dts}
+  \item Since v2024.07 the Device Tree files location depends on \code{CONFIG_OF_UPSTREAM}:
+    \begin{itemize}
+      \item \code{dts/upstream/src/ARCH/VENDOR} when \code{CONFIG_OF_UPSTREAM} is set
+      \item \code{arch/ARCH/dts} otherwise
+    \end{itemize}
   \item One \code{.dts} for each board: need to create one if you
     build a custom board
   \item U-Boot {\em defconfigs} usually specify a default Device Tree,