diff --git a/plat/arm/board/tc/include/platform_def.h b/plat/arm/board/tc/include/platform_def.h
index 6ca3261..11762d4 100644
--- a/plat/arm/board/tc/include/platform_def.h
+++ b/plat/arm/board/tc/include/platform_def.h
@@ -177,8 +177,14 @@
 
 #define PLAT_ARM_NSTIMER_FRAME_ID	0
 
+#if (TARGET_PLATFORM >= 2)
 #define PLAT_ARM_TRUSTED_ROM_BASE	0x1000
-#define PLAT_ARM_TRUSTED_ROM_SIZE	0x00080000	/* 512KB */
+#else
+#define PLAT_ARM_TRUSTED_ROM_BASE	0x0
+#endif
+
+/* PLAT_ARM_TRUSTED_ROM_SIZE 512KB minus ROM base. */
+#define PLAT_ARM_TRUSTED_ROM_SIZE	(0x00080000 - PLAT_ARM_TRUSTED_ROM_BASE)
 
 #define PLAT_ARM_NSRAM_BASE		0x06000000
 #define PLAT_ARM_NSRAM_SIZE		0x00080000	/* 512KB */
diff --git a/plat/arm/board/tc/platform.mk b/plat/arm/board/tc/platform.mk
index 3acd88e..18fcd54 100644
--- a/plat/arm/board/tc/platform.mk
+++ b/plat/arm/board/tc/platform.mk
@@ -1,4 +1,4 @@
-# Copyright (c) 2021, Arm Limited. All rights reserved.
+# Copyright (c) 2021-2022, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -9,6 +9,8 @@
         $(error TARGET_PLATFORM must be 0 or 1)
 endif
 
+$(eval $(call add_define,TARGET_PLATFORM))
+
 CSS_LOAD_SCP_IMAGES	:=	1
 
 CSS_USE_SCMI_SDS_DRIVER	:=	1