diff --git a/plat/fvp/bl31_plat_setup.c b/plat/fvp/bl31_plat_setup.c
index 55e4896..f845bf1 100644
--- a/plat/fvp/bl31_plat_setup.c
+++ b/plat/fvp/bl31_plat_setup.c
@@ -199,8 +199,8 @@
 	plat_cci_setup();
 
 #endif
-	configure_mmu_el3(BL31_RO_BASE,
-			  (BL31_COHERENT_RAM_LIMIT - BL31_RO_BASE),
+	configure_mmu_el3(TZRAM_BASE,
+			  TZRAM_SIZE,
 			  BL31_RO_BASE,
 			  BL31_RO_LIMIT,
 			  BL31_COHERENT_RAM_BASE,