diff --git a/plat/arm/board/common/board_common.mk b/plat/arm/board/common/board_common.mk
index 9e0c848..da6beec 100644
--- a/plat/arm/board/common/board_common.mk
+++ b/plat/arm/board/common/board_common.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -54,3 +54,10 @@
     BL1_SOURCES		+=	plat/arm/board/common/board_arm_trusted_boot.c
     BL2_SOURCES		+=	plat/arm/board/common/board_arm_trusted_boot.c
 endif
+
+# This flag controls whether memory usage needs to be optimised
+ARM_BOARD_OPTIMISE_MMAP	?=	0
+
+# Process flags
+$(eval $(call assert_boolean,ARM_BOARD_OPTIMISE_MMAP))
+$(eval $(call add_define,ARM_BOARD_OPTIMISE_MMAP))
diff --git a/plat/arm/board/juno/include/platform_def.h b/plat/arm/board/juno/include/platform_def.h
index deac0ff..98337e5 100644
--- a/plat/arm/board/juno/include/platform_def.h
+++ b/plat/arm/board/juno/include/platform_def.h
@@ -70,6 +70,41 @@
 #define PLAT_ARM_TRUSTED_ROM_SIZE	0x00010000
 #endif /* TRUSTED_BOARD_BOOT */
 
+/*
+ * If ARM_BOARD_OPTIMISE_MMAP=0 then Juno uses the default, unoptimised values
+ * defined for ARM development platforms.
+ */
+#if ARM_BOARD_OPTIMISE_MMAP
+/*
+ * PLAT_ARM_MMAP_ENTRIES depends on the number of entries in the
+ * plat_arm_mmap array defined for each BL stage.
+ */
+#if IMAGE_BL1
+# define PLAT_ARM_MMAP_ENTRIES		7
+# define MAX_XLAT_TABLES		4
+#endif
+
+#if IMAGE_BL2
+# define PLAT_ARM_MMAP_ENTRIES		8
+# define MAX_XLAT_TABLES		3
+#endif
+
+#if IMAGE_BL2U
+# define PLAT_ARM_MMAP_ENTRIES		4
+# define MAX_XLAT_TABLES		3
+#endif
+
+#if IMAGE_BL31
+# define PLAT_ARM_MMAP_ENTRIES		5
+# define MAX_XLAT_TABLES		2
+#endif
+
+#if IMAGE_BL32
+# define PLAT_ARM_MMAP_ENTRIES		4
+# define MAX_XLAT_TABLES		3
+#endif
+
+#endif /* ARM_BOARD_OPTIMISE_MMAP */
 
 /* CCI related constants */
 #define PLAT_ARM_CCI_BASE		0x2c090000
diff --git a/plat/arm/board/juno/platform.mk b/plat/arm/board/juno/platform.mk
index 3ffc7e7..9854208 100644
--- a/plat/arm/board/juno/platform.mk
+++ b/plat/arm/board/juno/platform.mk
@@ -67,15 +67,18 @@
 				${JUNO_SECURITY_SOURCES}
 
 # Enable workarounds for selected Cortex-A57 erratas.
-ERRATA_A57_806969	:=	0
-ERRATA_A57_813420	:=	1
+ERRATA_A57_806969		:=	0
+ERRATA_A57_813420		:=	1
 
 # Enable option to skip L1 data cache flush during the Cortex-A57 cluster
 # power down sequence
 SKIP_A57_L1_FLUSH_PWR_DWN	:=	 1
 
 # Disable the PSCI platform compatibility layer
-ENABLE_PLAT_COMPAT	:= 	0
+ENABLE_PLAT_COMPAT		:= 	0
+
+# Enable memory map related constants optimisation
+ARM_BOARD_OPTIMISE_MMAP		:=	1
 
 include plat/arm/board/common/board_css.mk
 include plat/arm/common/arm_common.mk