diff --git a/plat/nvidia/tegra/include/t194/tegra_def.h b/plat/nvidia/tegra/include/t194/tegra_def.h
index 9b6e18e..a9b7271 100644
--- a/plat/nvidia/tegra/include/t194/tegra_def.h
+++ b/plat/nvidia/tegra/include/t194/tegra_def.h
@@ -42,10 +42,13 @@
 /*******************************************************************************
  * Tegra Miscellanous register constants
  ******************************************************************************/
-#define TEGRA_MISC_BASE			0x00100000
-#define  HARDWARE_REVISION_OFFSET	0x4
+#define TEGRA_MISC_BASE				0x00100000U
 
-#define  MISCREG_PFCFG			0x200C
+#define HARDWARE_REVISION_OFFSET	0x4U
+#define MISCREG_EMU_REVID			0x3160U
+#define  BOARD_MASK_BITS			0xFFU
+#define  BOARD_SHIFT_BITS			24U
+#define MISCREG_PFCFG				0x200CU
 
 /*******************************************************************************
  * Tegra TSA Controller constants
diff --git a/plat/nvidia/tegra/soc/t194/plat_smmu.c b/plat/nvidia/tegra/soc/t194/plat_smmu.c
index 2b82f24..64e605b 100644
--- a/plat/nvidia/tegra/soc/t194/plat_smmu.c
+++ b/plat/nvidia/tegra/soc/t194/plat_smmu.c
@@ -9,6 +9,15 @@
 #include <smmu.h>
 #include <tegra_def.h>
 
+#define BOARD_SYSTEM_FPGA_BASE		U(1)
+#define BASE_CONFIG_SMMU_DEVICES	U(2)
+#define MAX_NUM_SMMU_DEVICES		U(3)
+
+static uint32_t tegra_misc_read_32(uint32_t off)
+{
+	return mmio_read_32(TEGRA_MISC_BASE + off);
+}
+
 /*******************************************************************************
  * Array to hold SMMU context for Tegra186
  ******************************************************************************/
@@ -411,3 +420,19 @@
 
 	return tegra194_smmu_context;
 }
+
+/*******************************************************************************
+ * Handler to return the support SMMU devices number
+ ******************************************************************************/
+uint32_t plat_get_num_smmu_devices(void)
+{
+	uint32_t ret_num = MAX_NUM_SMMU_DEVICES;
+	uint32_t board_revid = ((tegra_misc_read_32(MISCREG_EMU_REVID) >> \
+							BOARD_SHIFT_BITS) && BOARD_MASK_BITS);
+
+	if (board_revid == BOARD_SYSTEM_FPGA_BASE) {
+		ret_num = BASE_CONFIG_SMMU_DEVICES;
+	}
+
+	return ret_num;
+}
diff --git a/plat/nvidia/tegra/soc/t194/platform_t194.mk b/plat/nvidia/tegra/soc/t194/platform_t194.mk
index 95c967f..3f624dd 100644
--- a/plat/nvidia/tegra/soc/t194/platform_t194.mk
+++ b/plat/nvidia/tegra/soc/t194/platform_t194.mk
@@ -23,9 +23,6 @@
 ENABLE_SMMU_DEVICE			:= 1
 $(eval $(call add_define,ENABLE_SMMU_DEVICE))
 
-NUM_SMMU_DEVICES			:= 3
-$(eval $(call add_define,NUM_SMMU_DEVICES))
-
 RESET_TO_BL31				:= 1
 
 PROGRAMMABLE_RESET_ADDRESS		:= 1