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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> | |
a09e64fb | 23 | #include <mach/hardware.h> |
058b7a6f | 24 | #include <mach/common.h> |
eea643f7 JB |
25 | #include <asm/pgtable.h> |
26 | #include <asm/mach/map.h> | |
27 | ||
28 | /* MX27 memory map definition */ | |
29 | static struct map_desc mxc_io_desc[] __initdata = { | |
30 | /* | |
31 | * this fixed mapping covers: | |
32 | * - AIPI1 | |
33 | * - AIPI2 | |
34 | * - AITC | |
35 | * - ROM Patch | |
36 | * - and some reserved space | |
37 | */ | |
38 | { | |
39 | .virtual = AIPI_BASE_ADDR_VIRT, | |
40 | .pfn = __phys_to_pfn(AIPI_BASE_ADDR), | |
41 | .length = AIPI_SIZE, | |
42 | .type = MT_DEVICE | |
43 | }, | |
44 | /* | |
45 | * this fixed mapping covers: | |
46 | * - CSI | |
47 | * - ATA | |
48 | */ | |
49 | { | |
50 | .virtual = SAHB1_BASE_ADDR_VIRT, | |
51 | .pfn = __phys_to_pfn(SAHB1_BASE_ADDR), | |
52 | .length = SAHB1_SIZE, | |
53 | .type = MT_DEVICE | |
54 | }, | |
55 | /* | |
56 | * this fixed mapping covers: | |
57 | * - EMI | |
58 | */ | |
59 | { | |
60 | .virtual = X_MEMC_BASE_ADDR_VIRT, | |
61 | .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR), | |
62 | .length = X_MEMC_SIZE, | |
63 | .type = MT_DEVICE | |
64 | } | |
65 | }; | |
66 | ||
67 | /* | |
68 | * Initialize the memory map. It is called during the | |
69 | * system startup to create static physical to virtual | |
70 | * memory map for the IO modules. | |
71 | */ | |
cd4a05f9 | 72 | void __init mx21_map_io(void) |
eea643f7 | 73 | { |
cd4a05f9 | 74 | mxc_set_cpu_type(MXC_CPU_MX21); |
be124c94 | 75 | mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); |
cd4a05f9 | 76 | |
eea643f7 JB |
77 | iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); |
78 | } | |
cd4a05f9 SH |
79 | |
80 | void __init mx27_map_io(void) | |
81 | { | |
82 | mxc_set_cpu_type(MXC_CPU_MX27); | |
be124c94 | 83 | mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); |
cd4a05f9 SH |
84 | |
85 | iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); | |
86 | } | |
87 |