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-rw-r--r--doc/board/samsung/exynos-mobile.rst5
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/board/samsung/exynos-mobile.rst b/doc/board/samsung/exynos-mobile.rst
index 37718af1fea..d0173b1f8cb 100644
--- a/doc/board/samsung/exynos-mobile.rst
+++ b/doc/board/samsung/exynos-mobile.rst
@@ -25,12 +25,13 @@ If a cross-compiler is required, install it and set it up like so:
export CROSS_COMPILE=aarch64-linux-gnu-
-Then, run the following commands to build U-Boot:
+Then, run the following commands to build U-Boot (replace ``<dtb>`` with the
+upstream DTB path for the target device):
.. prompt:: bash $
make O=.output exynos-mobile_defconfig
- make O=.output -j$(nproc)
+ make DEVICE_TREE=<dtb> O=.output -j$(nproc)
If successful, the U-Boot binary will be present in ``.output/u-boot.bin``.