diff --git a/include/lib/cpus/aarch64/neoverse_n1.h b/include/lib/cpus/aarch64/neoverse_n1.h
index 908993e..ed5f136 100644
--- a/include/lib/cpus/aarch64/neoverse_n1.h
+++ b/include/lib/cpus/aarch64/neoverse_n1.h
@@ -13,10 +13,9 @@
 #define NEOVERSE_N1_MIDR		U(0x410fd0c0)
 
 /*******************************************************************************
- * CPU Extended Control register specific definitions.
+ * CPU Power Control register specific definitions.
  ******************************************************************************/
 #define NEOVERSE_N1_CPUPWRCTLR_EL1	S3_0_C15_C2_7
-#define NEOVERSE_N1_CPUECTLR_EL1	S3_0_C15_C1_4
 
 /* Definitions of register field mask in NEOVERSE_N1_CPUPWRCTLR_EL1 */
 #define NEOVERSE_N1_CORE_PWRDN_EN_MASK	U(0x1)
@@ -26,6 +25,18 @@
 #define NEOVERSE_N1_AMU_NR_COUNTERS	U(5)
 #define NEOVERSE_N1_AMU_GROUP0_MASK	U(0x1f)
 
+/*******************************************************************************
+ * CPU Extended Control register specific definitions.
+ ******************************************************************************/
+#define NEOVERSE_N1_CPUECTLR_EL1	S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Auxiliary Control register specific definitions.
+ ******************************************************************************/
+#define NEOVERSE_N1_CPUACTLR2_EL1	S3_0_C15_C1_1
+
+#define NEOVERSE_N1_CPUACTLR2_EL1_BIT_2	(ULL(1) << 2)
+
 /* Instruction patching registers */
 #define CPUPSELR_EL3	S3_6_C15_C8_0
 #define CPUPCR_EL3	S3_6_C15_C8_1