diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 7360a0f..ffb748f 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -498,6 +498,10 @@
    r0p3 and r1p0, it is fixed in r1p1. This workaround disables MPMM even if
    ENABLE_MPMM=1.
 
+-  ``ERRATA_A510_2218950``: This applies errata 2218950 workaround to
+   Cortex-A510 CPU. This needs to be enabled for revisions r0p0, r0p1, r0p2,
+   r0p3 and r1p0, it is fixed in r1p1.
+
 DSU Errata Workarounds
 ----------------------