fix(errata): workaround for Neoverse-N2 erratum 2242400
Neoverse-N2 erratum 2242400 is a Cat B erratum that applies to
revision r0p0 of CPU. It is still open. The workaround
is to set CPUACTLR5_EL1[17] to 1'b1 followed by setting few
system control registers to specific values as per attached
SDEN document.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1982442/latest
Signed-off-by: nayanpatel-arm <nayankumar.patel@arm.com>
Change-Id: I6a9cb4a23238b8b511802a1ee9fcc5b207137649
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index cd4d0fd..74be11b 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -426,6 +426,9 @@
- ``ERRATA_N2_2138958``: This applies errata 2138958 workaround to Neoverse-N2
CPU. This needs to be enabled for revision r0p0 of the CPU and is still open.
+- ``ERRATA_N2_2242400``: This applies errata 2242400 workaround to Neoverse-N2
+ CPU. This needs to be enabled for revision r0p0 of the CPU and is still open.
+
DSU Errata Workarounds
----------------------