errata: workaround for Cortex-A710 erratum 2055002
Cortex-A710 erratum 2055002 is a Cat B erratum that applies to
revisions r1p0 & r2p0 and is still open. The workaround is to
set CPUACTLR_EL1[46] to force L2 tag ECC inline correction mode.
This workaround works on revision r1p0 & r2p0.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1775101/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I67be1dce53c4651167d8cee33c116e73b9dafe81
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index f93aecd..fe66fbb 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -429,6 +429,10 @@
# to revision r0p0 of the Neoverse N2 cpu and is still open.
ERRATA_N2_2025414 ?=0
+# Flag to apply erratum 2055002 workaround during reset. This erratum applies
+# to revision r1p0, r2p0 of the Cortex-A710 cpu and is still open.
+ERRATA_A710_2055002 ?=0
+
# Flag to apply DSU erratum 798953. This erratum applies to DSUs revision r0p0.
# Applying the workaround results in higher DSU power consumption on idle.
ERRATA_DSU_798953 ?=0
@@ -790,6 +794,10 @@
$(eval $(call assert_boolean,ERRATA_N2_2025414))
$(eval $(call add_define,ERRATA_N2_2025414))
+# Process ERRATA_A710_2055002 flag
+$(eval $(call assert_boolean,ERRATA_A710_2055002))
+$(eval $(call add_define,ERRATA_A710_2055002))
+
# Process ERRATA_DSU_798953 flag
$(eval $(call assert_boolean,ERRATA_DSU_798953))
$(eval $(call add_define,ERRATA_DSU_798953))