diff --git a/plat/fvp/bl31_plat_setup.c b/plat/fvp/bl31_plat_setup.c
index 729ca5b28ea00a5141ce12aa6f445884a00cfce8..2e012ba0f5ed1936c2da23571c35cde521e4818f 100644
--- a/plat/fvp/bl31_plat_setup.c
+++ b/plat/fvp/bl31_plat_setup.c
@@ -199,8 +199,8 @@ void bl31_plat_arch_setup()
 	plat_cci_setup();
 
 #endif
-	configure_mmu_el3(TZRAM_BASE,
-			  TZRAM_SIZE,
+	configure_mmu_el3(BL31_RO_BASE,
+			  (BL31_COHERENT_RAM_LIMIT - BL31_RO_BASE),
 			  BL31_RO_BASE,
 			  BL31_RO_LIMIT,
 			  BL31_COHERENT_RAM_BASE,