diff --git a/plat/nvidia/tegra/include/t186/tegra_def.h b/plat/nvidia/tegra/include/t186/tegra_def.h
index 7f85351..f0bd5d5 100644
--- a/plat/nvidia/tegra/include/t186/tegra_def.h
+++ b/plat/nvidia/tegra/include/t186/tegra_def.h
@@ -106,6 +106,13 @@
 #define TEGRA_UARTG_BASE		0x0C290000
 
 /*******************************************************************************
+ * Tegra Fuse Controller related constants
+ ******************************************************************************/
+#define TEGRA_FUSE_BASE			0x03820000
+#define  OPT_SUBREVISION		0x248
+#define  SUBREVISION_MASK		0xFF
+
+/*******************************************************************************
  * GICv2 & interrupt handling related constants
  ******************************************************************************/
 #define TEGRA_GICD_BASE			0x03881000