diff --git a/lib/cpus/aarch64/cortex_a57.S b/lib/cpus/aarch64/cortex_a57.S
index 25def1c..63cb757 100644
--- a/lib/cpus/aarch64/cortex_a57.S
+++ b/lib/cpus/aarch64/cortex_a57.S
@@ -194,6 +194,32 @@
 endfunc errata_a57_826974_wa
 
 	/* ---------------------------------------------------
+	 * Errata Workaround for Cortex A57 Errata #826977.
+	 * This applies only to revision <= r1p1 of Cortex A57.
+	 * Inputs:
+	 * x0: variant[4:7] and revision[0:3] of current cpu.
+	 * Clobbers : x0 - x5
+	 * ---------------------------------------------------
+	 */
+func errata_a57_826977_wa
+	/*
+	 * Compare x0 against revision r1p1
+	 */
+	cmp	x0, #0x11
+	b.ls	apply_826977
+#if LOG_LEVEL >= LOG_LEVEL_VERBOSE
+	b	print_revision_warning
+#else
+	ret
+#endif
+apply_826977:
+	mrs	x1, CPUACTLR_EL1
+	orr	x1, x1, #CPUACTLR_GRE_NGRE_AS_NGNRE
+	msr	CPUACTLR_EL1, x1
+	ret
+endfunc errata_a57_826977_wa
+
+	/* ---------------------------------------------------
 	 * Errata Workaround for Cortex A57 Errata #828024.
 	 * This applies only to revision <= r1p1 of Cortex A57.
 	 * Inputs:
@@ -289,6 +315,11 @@
 	bl	errata_a57_826974_wa
 #endif
 
+#if ERRATA_A57_826977
+	mov	x0, x15
+	bl	errata_a57_826977_wa
+#endif
+
 #if ERRATA_A57_828024
 	mov	x0, x15
 	bl	errata_a57_828024_wa
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index 62de70f..aa808b6 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -78,6 +78,10 @@
 # only to revision <= r1p1 of the Cortex A57 cpu.
 ERRATA_A57_826974	?=0
 
+# Flag to apply erratum 826977 workaround during reset. This erratum applies
+# only to revision <= r1p1 of the Cortex A57 cpu.
+ERRATA_A57_826977	?=0
+
 # Flag to apply erratum 828024 workaround during reset. This erratum applies
 # only to revision <= r1p1 of the Cortex A57 cpu.
 ERRATA_A57_828024	?=0
@@ -106,6 +110,10 @@
 $(eval $(call assert_boolean,ERRATA_A57_826974))
 $(eval $(call add_define,ERRATA_A57_826974))
 
+# Process ERRATA_A57_826977 flag
+$(eval $(call assert_boolean,ERRATA_A57_826977))
+$(eval $(call add_define,ERRATA_A57_826977))
+
 # Process ERRATA_A57_828024 flag
 $(eval $(call assert_boolean,ERRATA_A57_828024))
 $(eval $(call add_define,ERRATA_A57_828024))