diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index bb53dad..c4769d9 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -258,6 +258,10 @@
 # only to revision <= r2p0 of the Neoverse N1 cpu.
 ERRATA_N1_1220197	?=0
 
+# Flag to apply erratum 1257314 workaround during reset. This erratum applies
+# only to revision <= r3p0 of the Neoverse N1 cpu.
+ERRATA_N1_1257314	?=0
+
 # Flag to apply erratum 1315703 workaround during reset. This erratum applies
 # to revisions before r3p1 of the Neoverse N1 cpu.
 ERRATA_N1_1315703	?=1
@@ -471,6 +475,10 @@
 $(eval $(call assert_boolean,ERRATA_N1_1220197))
 $(eval $(call add_define,ERRATA_N1_1220197))
 
+# Process ERRATA_N1_1257314 flag
+$(eval $(call assert_boolean,ERRATA_N1_1257314))
+$(eval $(call add_define,ERRATA_N1_1257314))
+
 # Process ERRATA_N1_1315703 flag
 $(eval $(call assert_boolean,ERRATA_N1_1315703))
 $(eval $(call add_define,ERRATA_N1_1315703))