fix(cpus): workaround for Cortex-A78C erratum 2772121
Cortex-A78C erratum 2772121 is a Cat B erratum that applies to
all revisions <=r0p2 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/SDEN1707916/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I0e190dabffc20c4d3b9b98d1abeb50f308b80bb9
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 8a8445d..8dc1275 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -357,6 +357,10 @@
Cortex-A78C CPU. This needs to be enabled for revisions r0p1 and r0p2. This
erratum is still open.
+- ``ERRATA_A78C_2772121`` : This applies errata 2772121 workaround to
+ Cortex-A78C CPU. This needs to be enabled for revisions r0p0, r0p1 and r0p2.
+ This erratum is still open.
+
For Cortex-X1 CPU, the following errata build flags are defined:
- ``ERRATA_X1_1821534`` : This applies errata 1821534 workaround to Cortex-X1