fix(cpus): workaround for Neoverse N1 erratum 2743102
Neoverse N1 erratum 2743102 is a Cat B erratum that applies to
all revisions <=r4p1 and is still open. The workaround is to
insert a dsb before the isb in the power down sequence.
SDEN documentation:
https://developer.arm.com/documentation/SDEN885747/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I81a8793c1a118764df3ac97b67f5e088f56f6a20
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 7ba79b9..37120c9 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -399,6 +399,10 @@
CPU. This needs to be enabled for revisions r3p0, r3p1, r4p0, and r4p1, for
revisions r0p0, r1p0, and r2p0 there is no workaround.
+- ``ERRATA_N1_2743102``: This applies errata 2743102 workaround to Neoverse-N1
+ CPU. This needs to be enabled for all revisions <= r4p1 of the CPU and is
+ still open.
+
For Neoverse V1, the following errata build flags are defined :
- ``ERRATA_V1_1618635``: This applies errata 1618635 workaround to Neoverse-V1