diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index ea30954..5dae30e 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -83,6 +83,18 @@
 #define ARM_AP_TZC_DRAM1_END		(ARM_AP_TZC_DRAM1_BASE +	\
 					 ARM_AP_TZC_DRAM1_SIZE - 1)
 
+/* Define the Access permissions for Secure peripherals to NS_DRAM */
+#if ARM_CRYPTOCELL_INTEG
+/*
+ * Allow Secure peripheral to read NS DRAM when integrated with CryptoCell.
+ * This is required by CryptoCell to authenticate BL33 which is loaded
+ * into the Non Secure DDR.
+ */
+#define ARM_TZC_NS_DRAM_S_ACCESS	TZC_REGION_S_RD
+#else
+#define ARM_TZC_NS_DRAM_S_ACCESS	TZC_REGION_S_NONE
+#endif
+
 
 #define ARM_NS_DRAM1_BASE		ARM_DRAM1_BASE
 #define ARM_NS_DRAM1_SIZE		(ARM_DRAM1_SIZE -		\