diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 1099af6d470ad619be8aa5eeecd64a11705c0282..64262bda8e54d97d4b3002b24b4024865fd12de6 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -434,9 +434,9 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
 	 * It is always first in the modulearea.
 	 */
 #ifdef CONFIG_XIP_KERNEL
-	map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & PGDIR_MASK);
+	map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
 	map.virtual = MODULE_START;
-	map.length = ((unsigned long)&_etext - map.virtual + ~PGDIR_MASK) & PGDIR_MASK;
+	map.length = ((unsigned long)&_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK;
 	map.type = MT_ROM;
 	create_mapping(&map);
 #endif
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 8d3919c6458c6c9326ef35a35ee7c848d34ac467..38b2b55688e2b4542d7d9eefb9f3387435b8014e 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -135,6 +135,13 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define FIRST_USER_PGD_NR	1
 #define USER_PTRS_PER_PGD	((TASK_SIZE/PGDIR_SIZE) - FIRST_USER_PGD_NR)
 
+/*
+ * section address mask and size definitions.
+ */
+#define SECTION_SHIFT		20
+#define SECTION_SIZE		(1UL << SECTION_SHIFT)
+#define SECTION_MASK		(~(SECTION_SIZE-1))
+
 /*
  * ARMv6 supersection address mask and size definitions.
  */