fix(errata): workaround for DSU-110 erratum 2313941
DSU-110 erratum 2313941 is a Cat B erratum and applies to revisions
r0p0, r1p0, r2p0, r2p1, r3p0, r3p1 and is still open.
The workaround sets IMP_CLUSTERACTLR_EL1[16:15] bits to 0b11 to disable
clock gating of the SCLK domain. This will increase the idle power
consumption.
This patch applies the fix for Cortex-X2/A510/A710 and Neoverse N2.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1781796/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I54d948b23e8e01aaf1898ed9fe4e2255dd209318
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index 771700c..fbd2cbc 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -576,6 +576,12 @@
r2p0 it is fixed). However, please note that this workaround results in
increased DSU power consumption on idle.
+- ``ERRATA_DSU_2313941``: This applies errata 2313941 workaround for the
+ affected DSU configurations. This errata applies for those DSUs with
+ revisions r0p0, r1p0, r2p0, r2p1, r3p0, r3p1 and is still open. However,
+ please note that this workaround results in increased DSU power consumption
+ on idle.
+
CPU Specific optimizations
--------------------------