fix(cpus): workaround for Cortex-A710 erratum 2778471
Cortex-A710 erratum 2778471 is a Cat B erratum that applies
to revisions r0p1, r1p0, r2p0 and r2p1 and is still open.
The workaround is to set CPUACTLR3_EL1[47] to 1.
SDEN documentation:
https://developer.arm.com/documentation/SDEN-1775101/latest
Change-Id: Id3bb4a2673e41ff237682e46784d37752daf2f83
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
(cherry picked from commit c9508d6a1062ec3de4baaa3bd79ceed13eb972ad)
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 091456d..e794ae2 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -636,6 +636,10 @@
Cortex-A710 CPU. This needs to be enabled for revisions r0p0, r1p0, r2p0 and
r2p1 of the CPU and is still open.
+- ``ERRATA_A710_2778471``: This applies errata 2778471 workaround to Cortex-A710
+ CPU. This needs to be enabled for revisions r0p0, r1p0, r2p0 and r2p1 of the
+ CPU and is still open.
+
For Neoverse N2, the following errata build flags are defined :
- ``ERRATA_N2_2002655``: This applies errata 2002655 workaround to Neoverse-N2