errata: workaround for Neoverse V1 errata 1774420
Neoverse V1 erratum 1774420 is a Cat B erratum present in r0p0 and
r1p0 of the V1 processor core. It is fixed in r1p1.
SDEN can be found here:
https://documentation-service.arm.com/static/60d499080320e92fa40b4625
Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I66e27b2518f73faeedd8615a1443a74b6a30f123
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index 6f80d2d..3de0139 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -372,6 +372,10 @@
# exists in revisions r0p0, r1p0, and r2p0 as well but there is no workaround.
ERRATA_N1_1946160 ?=0
+# Flag to apply erratum 1774420 workaround during reset. This erratum applies
+# to revisions r0p0 and r1p0 of the Neoverse V1 core, and was fixed in r1p1.
+ERRATA_V1_1774420 ?=0
+
# Flag to apply erratum 1791573 workaround during reset. This erratum applies
# to revisions r0p0 and r1p0 of the Neoverse V1 core, and was fixed in r1p1.
ERRATA_V1_1791573 ?=0
@@ -685,6 +689,10 @@
$(eval $(call assert_boolean,ERRATA_N1_1946160))
$(eval $(call add_define,ERRATA_N1_1946160))
+# Process ERRATA_V1_1774420 flag
+$(eval $(call assert_boolean,ERRATA_V1_1774420))
+$(eval $(call add_define,ERRATA_V1_1774420))
+
# Process ERRATA_V1_1791573 flag
$(eval $(call assert_boolean,ERRATA_V1_1791573))
$(eval $(call add_define,ERRATA_V1_1791573))