diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index 68ef4ce..d1acf4f 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -1031,6 +1031,12 @@
   functionalities). When enabled (``1``), a mocked version of the APIs are used.
   The default value is 0.
 
+- ``CONDITIONAL_CMO``: Boolean option to enable call to platform-defined routine
+  ``plat_can_cmo`` which will return zero if cache management operations should
+  be skipped and non-zero otherwise. By default, this option is disabled which
+  means platform hook won't be checked and CMOs will always be performed when
+  related functions are called.
+
 GICv3 driver options
 --------------------