diff --git a/plat/arm/board/common/board_css_common.c b/plat/arm/board/common/board_css_common.c
index 3bb3dd6..7bf0273 100644
--- a/plat/arm/board/common/board_css_common.c
+++ b/plat/arm/board/common/board_css_common.c
@@ -38,7 +38,7 @@
 #if IMAGE_BL1
 const mmap_region_t plat_arm_mmap[] = {
 	ARM_MAP_SHARED_RAM,
-	V2M_MAP_FLASH0,
+	V2M_MAP_FLASH0_RO,
 	V2M_MAP_IOFPGA,
 	CSS_MAP_DEVICE,
 	SOC_CSS_MAP_DEVICE,
@@ -48,7 +48,7 @@
 #if IMAGE_BL2
 const mmap_region_t plat_arm_mmap[] = {
 	ARM_MAP_SHARED_RAM,
-	V2M_MAP_FLASH0,
+	V2M_MAP_FLASH0_RO,
 	V2M_MAP_IOFPGA,
 	CSS_MAP_DEVICE,
 	SOC_CSS_MAP_DEVICE,