diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index ad32971..198a32e 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -91,6 +91,10 @@
 # only to revision <= r1p2 of the Cortex A57 cpu.
 ERRATA_A57_833471	?=0
 
+# Flag to apply erratum 855972 workaround during reset. This erratum applies
+# only to revision <= r1p3 of the Cortex A57 cpu.
+ERRATA_A57_859972	?=0
+
 # Process ERRATA_A53_826319 flag
 $(eval $(call assert_boolean,ERRATA_A53_826319))
 $(eval $(call add_define,ERRATA_A53_826319))
@@ -143,6 +147,10 @@
 $(eval $(call assert_boolean,ERRATA_A57_833471))
 $(eval $(call add_define,ERRATA_A57_833471))
 
+# Process ERRATA_A57_859972 flag
+$(eval $(call assert_boolean,ERRATA_A57_859972))
+$(eval $(call add_define,ERRATA_A57_859972))
+
 # Errata build flags
 ifneq (${ERRATA_A53_843419},0)
 TF_LDFLAGS_aarch64	+= --fix-cortex-a53-843419