fix(cpus): workaround for Cortex-A715 erratum 2413290
Cortex-A715 erratum 2413290 is a Cat B erratum that is present
only in revision r1p0 and is fixed in r1p1. The errata is only
present when SPE(Statistical Profiling Extension) is enabled.
The workaround is to set bits[58:57] of the CPUACTLR_EL1 to 'b11
when SPE is enabled, ENABLE_SPE_FOR_NS=1.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2148827/latest
Change-Id: Iaeb258c8b0a92e93d70b7dad6ba59d1056aeb135
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 072cf1b..97e164d 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -899,6 +899,11 @@
Cortex-A715 CPU. This needs to be enabled for revisions r0p0 and r1p0. It is
fixed in r1p1.
+- ``ERRATA_A715_2413290``: This applies errata 2413290 workaround to
+ Cortex-A715 CPU. This needs to be enabled only for revision r1p0 and
+ when SPE(Statistical profiling extension)=True. The errata is fixed
+ in r1p1.
+
- ``ERRATA_A715_2420947``: This applies errata 2420947 workaround to
Cortex-A715 CPU. This needs to be enabled only for revision r1p0.
It is fixed in r1p1.