diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 9c9a271..dc6830b 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -96,7 +96,7 @@
 	kmap_prot = PAGE_KERNEL;
 }
 
-#ifdef CONFIG_MIPS64
+#ifdef CONFIG_64BIT
 static void __init fixrange_init(unsigned long start, unsigned long end,
 	pgd_t *pgd_base)
 {
@@ -125,7 +125,7 @@
 		j = 0;
 	}
 }
-#endif /* CONFIG_MIPS64 */
+#endif /* CONFIG_64BIT */
 #endif /* CONFIG_HIGHMEM */
 
 #ifndef CONFIG_NEED_MULTIPLE_NODES
@@ -258,7 +258,7 @@
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-#ifdef CONFIG_MIPS64
+#ifdef CONFIG_64BIT
 	/* Switch from KSEG0 to XKPHYS addresses */
 	start = (unsigned long)phys_to_virt(CPHYSADDR(start));
 	end = (unsigned long)phys_to_virt(CPHYSADDR(end));
@@ -286,7 +286,7 @@
 
 	addr = (unsigned long) &__init_begin;
 	while (addr < (unsigned long) &__init_end) {
-#ifdef CONFIG_MIPS64
+#ifdef CONFIG_64BIT
 		page = PAGE_OFFSET | CPHYSADDR(addr);
 #else
 		page = addr;