diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 9a661d7..47f2ac2 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -241,16 +241,25 @@
 						ARM_EL3_TZC_DRAM1_SIZE,	\
 						MT_MEMORY | MT_RW | MT_SECURE)
 
+/*
+ * If SEPARATE_CODE_AND_RODATA=1 we define a region for each section
+ * otherwise one region is defined containing both.
+ */
 #if SEPARATE_CODE_AND_RODATA
-#define ARM_MAP_BL_CODE			MAP_REGION_FLAT(			\
+#define ARM_MAP_BL_RO			MAP_REGION_FLAT(			\
 						BL_CODE_BASE,			\
 						BL_CODE_END - BL_CODE_BASE,	\
-						MT_CODE | MT_SECURE)
-#define ARM_MAP_BL_RO_DATA		MAP_REGION_FLAT(			\
+						MT_CODE | MT_SECURE),		\
+					MAP_REGION_FLAT(			\
 						BL_RO_DATA_BASE,		\
 						BL_RO_DATA_END			\
 							- BL_RO_DATA_BASE,	\
 						MT_RO_DATA | MT_SECURE)
+#else
+#define ARM_MAP_BL_RO			MAP_REGION_FLAT(			\
+						BL_CODE_BASE,			\
+						BL_CODE_END - BL_CODE_BASE,	\
+						MT_CODE | MT_SECURE)
 #endif
 #if USE_COHERENT_MEM
 #define ARM_MAP_BL_COHERENT_RAM		MAP_REGION_FLAT(			\
@@ -261,14 +270,10 @@
 #endif
 
 /*
- * The number of regions like RO(code), coherent and data required by
+ * The max number of regions like RO(code), coherent and data required by
  * different BL stages which need to be mapped in the MMU.
  */
-#if USE_COHERENT_MEM
 # define ARM_BL_REGIONS			4
-#else
-# define ARM_BL_REGIONS			3
-#endif
 
 #define MAX_MMAP_REGIONS		(PLAT_ARM_MMAP_ENTRIES +	\
 					 ARM_BL_REGIONS)