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eea643f7 JB |
1 | /* |
2 | * generic.c | |
3 | * | |
4 | * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
18 | * MA 02110-1301, USA. | |
19 | */ | |
20 | ||
21 | #include <linux/mm.h> | |
22 | #include <linux/init.h> | |
be509729 | 23 | #include <asm/arch/hardware.h> |
eea643f7 JB |
24 | #include <asm/pgtable.h> |
25 | #include <asm/mach/map.h> | |
26 | ||
27 | /* MX27 memory map definition */ | |
28 | static struct map_desc mxc_io_desc[] __initdata = { | |
29 | /* | |
30 | * this fixed mapping covers: | |
31 | * - AIPI1 | |
32 | * - AIPI2 | |
33 | * - AITC | |
34 | * - ROM Patch | |
35 | * - and some reserved space | |
36 | */ | |
37 | { | |
38 | .virtual = AIPI_BASE_ADDR_VIRT, | |
39 | .pfn = __phys_to_pfn(AIPI_BASE_ADDR), | |
40 | .length = AIPI_SIZE, | |
41 | .type = MT_DEVICE | |
42 | }, | |
43 | /* | |
44 | * this fixed mapping covers: | |
45 | * - CSI | |
46 | * - ATA | |
47 | */ | |
48 | { | |
49 | .virtual = SAHB1_BASE_ADDR_VIRT, | |
50 | .pfn = __phys_to_pfn(SAHB1_BASE_ADDR), | |
51 | .length = SAHB1_SIZE, | |
52 | .type = MT_DEVICE | |
53 | }, | |
54 | /* | |
55 | * this fixed mapping covers: | |
56 | * - EMI | |
57 | */ | |
58 | { | |
59 | .virtual = X_MEMC_BASE_ADDR_VIRT, | |
60 | .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR), | |
61 | .length = X_MEMC_SIZE, | |
62 | .type = MT_DEVICE | |
63 | } | |
64 | }; | |
65 | ||
66 | /* | |
67 | * Initialize the memory map. It is called during the | |
68 | * system startup to create static physical to virtual | |
69 | * memory map for the IO modules. | |
70 | */ | |
71 | void __init mxc_map_io(void) | |
72 | { | |
73 | iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); | |
74 | } |