--- zzzz-none-000/linux-3.10.107/arch/m68k/include/asm/pgtable_mm.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/m68k/include/asm/pgtable_mm.h	2021-02-04 17:41:59.000000000 +0000
@@ -54,10 +54,12 @@
  */
 #ifdef CONFIG_SUN3
 #define PTRS_PER_PTE   16
+#define __PAGETABLE_PMD_FOLDED
 #define PTRS_PER_PMD   1
 #define PTRS_PER_PGD   2048
 #elif defined(CONFIG_COLDFIRE)
 #define PTRS_PER_PTE	512
+#define __PAGETABLE_PMD_FOLDED
 #define PTRS_PER_PMD	1
 #define PTRS_PER_PGD	1024
 #else
@@ -66,7 +68,7 @@
 #define PTRS_PER_PGD	128
 #endif
 #define USER_PTRS_PER_PGD	(TASK_SIZE/PGDIR_SIZE)
-#define FIRST_USER_ADDRESS	0
+#define FIRST_USER_ADDRESS	0UL
 
 /* Virtual address region for use by kernel_map() */
 #ifdef CONFIG_SUN3
@@ -135,9 +137,6 @@
 
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 /* MMU-specific headers */
 
 #ifdef CONFIG_SUN3