| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| Russell King | 4baa992 | 2008-08-02 10:55:55 +0100 | [diff] [blame] | 2 | * arch/arm/include/asm/map.h |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 1999-2000 Russell King |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * Page table mapping constructs and function prototypes |
| 11 | */ |
| Russell King | 3603ab2 | 2007-05-05 20:59:27 +0100 | [diff] [blame] | 12 | #include <asm/io.h> |
| 13 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | struct map_desc { |
| 15 | unsigned long virtual; |
| Deepak Saxena | 9769c24 | 2005-10-28 15:19:11 +0100 | [diff] [blame] | 16 | unsigned long pfn; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | unsigned long length; |
| 18 | unsigned int type; |
| 19 | }; |
| 20 | |
| Russell King | db5b716 | 2008-09-07 12:42:51 +0100 | [diff] [blame] | 21 | /* types 0-3 are defined in asm/io.h */ |
| Russell King | ebb4c65 | 2008-11-09 11:18:36 +0000 | [diff] [blame] | 22 | #define MT_UNCACHED 4 |
| 23 | #define MT_CACHECLEAN 5 |
| 24 | #define MT_MINICLEAN 6 |
| 25 | #define MT_LOW_VECTORS 7 |
| 26 | #define MT_HIGH_VECTORS 8 |
| 27 | #define MT_MEMORY 9 |
| 28 | #define MT_ROM 10 |
| Paul Walmsley | e4707dd | 2009-03-12 20:11:43 +0100 | [diff] [blame] | 29 | #define MT_MEMORY_NONCACHED 11 |
| Linus Walleij | cb9d770 | 2010-07-12 21:50:59 +0100 | [diff] [blame] | 30 | #define MT_MEMORY_DTCM 12 |
| 31 | #define MT_MEMORY_ITCM 13 |
| Russell King | 0af92be | 2007-05-05 20:28:16 +0100 | [diff] [blame] | 32 | |
| Russell King | 092c195 | 2006-06-24 17:34:50 +0100 | [diff] [blame] | 33 | #ifdef CONFIG_MMU |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | extern void iotable_init(struct map_desc *, int); |
| Hiroshi DOYU | 69d3a84 | 2009-01-28 21:32:08 +0200 | [diff] [blame] | 35 | |
| 36 | struct mem_type; |
| 37 | extern const struct mem_type *get_mem_type(unsigned int type); |
| 38 | /* |
| 39 | * external interface to remap single page with appropriate type |
| 40 | */ |
| 41 | extern int ioremap_page(unsigned long virt, unsigned long phys, |
| 42 | const struct mem_type *mtype); |
| Russell King | 092c195 | 2006-06-24 17:34:50 +0100 | [diff] [blame] | 43 | #else |
| 44 | #define iotable_init(map,num) do { } while (0) |
| 45 | #endif |