diff --git a/plat/arm/board/tc/include/platform_def.h b/plat/arm/board/tc/include/platform_def.h
index 45d17ba..57bb55e 100644
--- a/plat/arm/board/tc/include/platform_def.h
+++ b/plat/arm/board/tc/include/platform_def.h
@@ -306,6 +306,9 @@
 #elif TARGET_PLATFORM == 3
 #define PLAT_RSE_AP_SND_MHU_BASE	UL(0x49000000)
 #define PLAT_RSE_AP_RCV_MHU_BASE	UL(0x49100000)
+#elif TARGET_PLATFORM == 4
+#define PLAT_RSE_AP_SND_MHU_BASE	UL(0x49000000)
+#define PLAT_RSE_AP_RCV_MHU_BASE	UL(0x49010000)
 #endif
 
 #define CSS_SYSTEM_PWR_DMN_LVL		ARM_PWR_LVL2