fix(cpus): workaround for Cortex-X2 erratum 2768515
Cortex-X2 erratum 2768515 is a Cat B erratum that applies to
all revisions <=r2p1 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/SDEN1775100/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Ib02688f7b6dc7f6ec305e68e8895174f6fd577a0
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 368da0a..c07a0aa 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -599,6 +599,10 @@
Cortex-X2 CPU. This needs to be enabled for revisions r0p0, r1p0 and r2p0
of the CPU and is fixed in r2p1.
+- ``ERRATA_X2_2768515``: This applies errata 2768515 workaround to
+ Cortex-X2 CPU. This needs to be enabled for revisions r0p0, r1p0, r2p0
+ and r2p1 of the CPU and is still open.
+
For Cortex-X3, the following errata build flags are defined :
- ``ERRATA_X3_2313909``: This applies errata 2313909 workaround to