diff --git a/plat/nvidia/tegra/soc/t186/plat_smmu.c b/plat/nvidia/tegra/soc/t186/plat_smmu.c
index 2751fcb..b9541e8 100644
--- a/plat/nvidia/tegra/soc/t186/plat_smmu.c
+++ b/plat/nvidia/tegra/soc/t186/plat_smmu.c
@@ -9,6 +9,8 @@
 #include <smmu.h>
 #include <tegra_def.h>
 
+#define MAX_NUM_SMMU_DEVICES	U(1)
+
 /*******************************************************************************
  * Array to hold SMMU context for Tegra186
  ******************************************************************************/
@@ -309,3 +311,11 @@
 
 	return tegra186_smmu_context;
 }
+
+/*******************************************************************************
+ * Handler to return the support SMMU devices number
+ ******************************************************************************/
+uint32_t plat_get_num_smmu_devices(void)
+{
+	return MAX_NUM_SMMU_DEVICES;
+}
diff --git a/plat/nvidia/tegra/soc/t186/platform_t186.mk b/plat/nvidia/tegra/soc/t186/platform_t186.mk
index 31f0154..9dae8cd 100644
--- a/plat/nvidia/tegra/soc/t186/platform_t186.mk
+++ b/plat/nvidia/tegra/soc/t186/platform_t186.mk
@@ -20,9 +20,6 @@
 ENABLE_SMMU_DEVICE			:= 1
 $(eval $(call add_define,ENABLE_SMMU_DEVICE))
 
-NUM_SMMU_DEVICES			:= 1
-$(eval $(call add_define,NUM_SMMU_DEVICES))
-
 RESET_TO_BL31				:= 1
 
 PROGRAMMABLE_RESET_ADDRESS		:= 1