diff --git a/plat/nvidia/tegra/include/t186/tegra_def.h b/plat/nvidia/tegra/include/t186/tegra_def.h
index 4c99a7b..f919ac3 100644
--- a/plat/nvidia/tegra/include/t186/tegra_def.h
+++ b/plat/nvidia/tegra/include/t186/tegra_def.h
@@ -261,11 +261,17 @@
 #define  SECURE_SCRATCH_RSV55_HI	0x80C
 
 /*******************************************************************************
- * Tegra Memory Mapped Control Register Access Bus constants
+ * Tegra Memory Mapped Control Register Access constants
  ******************************************************************************/
 #define TEGRA_MMCRAB_BASE		0x0E000000
 
 /*******************************************************************************
+ * Tegra Memory Mapped Activity Monitor Register Access constants
+ ******************************************************************************/
+#define TEGRA_ARM_ACTMON_CTR_BASE	0x0E060000
+#define TEGRA_DENVER_ACTMON_CTR_BASE	0x0E070000
+
+/*******************************************************************************
  * Tegra SMMU Controller constants
  ******************************************************************************/
 #define TEGRA_SMMU_BASE			0x12000000