| /* |
| * arch/arm/include/asm/map.h |
| * |
| * Copyright (C) 1999-2000 Russell King |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * Page table mapping constructs and function prototypes |
| */ |
| #include <asm/io.h> |
| |
| struct map_desc { |
| unsigned long virtual; |
| unsigned long pfn; |
| unsigned long length; |
| unsigned int type; |
| }; |
| |
| /* types 0-3 are defined in asm/io.h */ |
| #define MT_UNCACHED 4 |
| #define MT_CACHECLEAN 5 |
| #define MT_MINICLEAN 6 |
| #define MT_LOW_VECTORS 7 |
| #define MT_HIGH_VECTORS 8 |
| #define MT_MEMORY 9 |
| #define MT_ROM 10 |
| #define MT_MEMORY_NONCACHED 11 |
| #define MT_MEMORY_DTCM 12 |
| #define MT_MEMORY_ITCM 13 |
| |
| #ifdef CONFIG_MMU |
| extern void iotable_init(struct map_desc *, int); |
| |
| struct mem_type; |
| extern const struct mem_type *get_mem_type(unsigned int type); |
| /* |
| * external interface to remap single page with appropriate type |
| */ |
| extern int ioremap_page(unsigned long virt, unsigned long phys, |
| const struct mem_type *mtype); |
| #else |
| #define iotable_init(map,num) do { } while (0) |
| #endif |
