commit e2fea185d0528e2066440cc973c836fc232e35c4
author Sona Mathew <sonarebecca.mathew@arm.com> Fri Dec 08 20:52:17 2023 -0600
committer Sona Mathew <sonarebecca.mathew@arm.com> Tue Dec 12 15:45:25 2023 -0600
tree 91df2480410350744623638611ca93460ab55869
parent 05a020f5906acc5f61753674ead6c86b68ac5a6c

fix(cpus): workaround for Cortex-A710 erratum 2778471

Cortex-A710 erratum 2778471 is a Cat B erratum that applies
to revisions r0p1, r1p0, r2p0 and r2p1 and is still open.
The workaround is to set CPUACTLR3_EL1[47] to 1.

SDEN documentation:
https://developer.arm.com/documentation/SDEN-1775101/latest

Change-Id: Id3bb4a2673e41ff237682e46784d37752daf2f83
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>

lib/cpus/cpu-ops.mk

diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index bbf44b4..72a6a20 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -625,6 +625,11 @@
 # still open.
 CPU_FLAG_LIST += ERRATA_A710_2768515
 
+# Flag to apply erratum 2778471 workaround during reset. This erratum applies
+# to revisions r0p0, r1p0, r2p0, r2p1 of the Cortex-A710 cpu and is still
+# open.
+CPU_FLAG_LIST += ERRATA_A710_2778471
+
 # Flag to apply erratum 2002655 workaround during reset. This erratum applies
 # to revisions r0p0 of the Neoverse-N2 cpu and is fixed in r0p1.
 CPU_FLAG_LIST += ERRATA_N2_2002655