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-rw-r--r--docs/user-guide.rst6
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diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index b602956aa..d3c63c751 100644
--- a/docs/user-guide.rst
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@@ -729,6 +729,12 @@ Common build options
Note: when ``EL3_EXCEPTION_HANDLING`` is ``1``, ``TSP_NS_INTR_ASYNC_PREEMPT``
must also be set to ``1``.
+- ``USE_ARM_LINK``: This flag determines whether to enable support for ARM
+ linker. When the ``LINKER`` build variable points to the armlink linker,
+ this flag is enabled automatically. To enable support for armlink, platforms
+ will have to provide a scatter file for the BL image. Currently, Tegra
+ platforms use the armlink support to compile BL3-1 images.
+
- ``USE_COHERENT_MEM``: This flag determines whether to include the coherent
memory region in the BL memory map or not (see "Use of Coherent memory in
TF-A" section in `Firmware Design`_). It can take the value 1