fix(errata): workaround for Neoverse-V1 erratum 1618635
Neoverse-V1 erratum 1618635 is a Cat B erratum that applies to
revision r0p0. It is fixed in r1p0.
The workaround is done through the instruction patching
mechanism, which is performed by a write sequence of
IMPLEMENTATION DEFINED registers.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1401781/latest/
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: I53e406735cd3a2a930fdc72ebce3bbed97100168
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 2ddccac..ef4c1a3 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -390,6 +390,10 @@
For Neoverse V1, the following errata build flags are defined :
+- ``ERRATA_V1_1618635``: This applies errata 1618635 workaround to Neoverse-V1
+ CPU. This needs to be enabled for revision r0p0 of the CPU, it is fixed in
+ r1p0.
+
- ``ERRATA_V1_1774420``: This applies errata 1774420 workaround to Neoverse-V1
CPU. This needs to be enabled only for revisions r0p0 and r1p0, it is fixed
in r1p1.