diff --git a/lib/xlat_tables/xlat_tables_common.c b/lib/xlat_tables/xlat_tables_common.c
index 81c4dc6..a5bc095 100644
--- a/lib/xlat_tables/xlat_tables_common.c
+++ b/lib/xlat_tables/xlat_tables_common.c
@@ -87,7 +87,7 @@
 }
 
 void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
-			size_t size, unsigned int attr)
+			size_t size, mmap_attr_t attr)
 {
 	mmap_region_t *mm = mmap;
 	mmap_region_t *mm_last = mm + ARRAY_SIZE(mmap) - 1;
@@ -199,7 +199,7 @@
 	}
 }
 
-static uint64_t mmap_desc(unsigned attr, unsigned long long addr_pa,
+static uint64_t mmap_desc(mmap_attr_t attr, unsigned long long addr_pa,
 							int level)
 {
 	uint64_t desc;
@@ -277,11 +277,11 @@
  * attributes of the innermost region that contains it. If there are partial
  * overlaps, it returns -1, as a smaller size is needed.
  */
-static int mmap_region_attr(mmap_region_t *mm, uintptr_t base_va,
+static mmap_attr_t mmap_region_attr(mmap_region_t *mm, uintptr_t base_va,
 					size_t size)
 {
 	/* Don't assume that the area is contained in the first region */
-	int attr = -1;
+	mmap_attr_t attr = -1;
 
 	/*
 	 * Get attributes from last (innermost) region that contains the
@@ -360,7 +360,8 @@
 			 * there are partially overlapping regions. On success,
 			 * it will return the innermost region's attributes.
 			 */
-			int attr = mmap_region_attr(mm, base_va, level_size);
+			mmap_attr_t attr = mmap_region_attr(mm, base_va,
+							level_size);
 			if (attr >= 0) {
 				desc = mmap_desc(attr,
 					base_va - mm->base_va + mm->base_pa,
diff --git a/lib/xlat_tables_v2/xlat_tables_common.c b/lib/xlat_tables_v2/xlat_tables_common.c
index b4691a2..7ca81b9 100644
--- a/lib/xlat_tables_v2/xlat_tables_common.c
+++ b/lib/xlat_tables_v2/xlat_tables_common.c
@@ -92,7 +92,7 @@
 };
 
 void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
-			size_t size, unsigned int attr)
+			size_t size, mmap_attr_t attr)
 {
 	mmap_region_t mm = {
 		.base_va = base_va,
@@ -114,7 +114,7 @@
 #if PLAT_XLAT_TABLES_DYNAMIC
 
 int mmap_add_dynamic_region(unsigned long long base_pa,
-			    uintptr_t base_va, size_t size, unsigned int attr)
+			    uintptr_t base_va, size_t size, mmap_attr_t attr)
 {
 	mmap_region_t mm = {
 		.base_va = base_va,
diff --git a/lib/xlat_tables_v2/xlat_tables_internal.c b/lib/xlat_tables_v2/xlat_tables_internal.c
index 2f03306..581f770 100644
--- a/lib/xlat_tables_v2/xlat_tables_internal.c
+++ b/lib/xlat_tables_v2/xlat_tables_internal.c
@@ -115,7 +115,7 @@
 #endif /* PLAT_XLAT_TABLES_DYNAMIC */
 
 /* Returns a block/page table descriptor for the given level and attributes. */
-static uint64_t xlat_desc(unsigned int attr, unsigned long long addr_pa,
+static uint64_t xlat_desc(mmap_attr_t attr, unsigned long long addr_pa,
 			  int level)
 {
 	uint64_t desc;
@@ -609,7 +609,7 @@
  */
 static int mmap_add_region_check(xlat_ctx_t *ctx, unsigned long long base_pa,
 				 uintptr_t base_va, size_t size,
-				 unsigned int attr)
+				 mmap_attr_t attr)
 {
 	mmap_region_t *mm = ctx->mmap;
 	unsigned long long end_pa = base_pa + size - 1;