fix(cpus): workaround for Cortex-A710 erratum 1917258
Cortex-A710 erratum 1917258 is a Cat B erratum that applies
to revisions r0p0 and r1p0 and is fixed in r2p0.
The workaround is to set CPUACTLR4_EL1[43]. This has no
performance impact.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1775101
Change-Id: I1fae91a5e3a8ecea255f0f0a481bfd6196a7db51
Signed-off-by: John Powell <john.powell@arm.com>
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 643d3a4..8b0ab4b 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -581,6 +581,10 @@
Cortex-A710 CPU. This needs to be enabled only for revisions r0p0 and r1p0.
It has been fixed in r2p0.
+- ``ERRATA_A710_1917258``: This applies errata 1917258 workaround to
+ Cortex-A710 CPU. This needs to be enabled only for revisions r0p0 and r1p0.
+ It has been fixed in r2p0.
+
- ``ERRATA_A710_1987031``: This applies errata 1987031 workaround to
Cortex-A710 CPU. This needs to be enabled only for revisions r0p0, r1p0 and
r2p0 of the CPU. It is still open.