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1 | /* |
2 | * arch/arm/mach-imx/mm-imx21.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> |
23 | #include <mach/hardware.h> |
24 | #include <mach/common.h> |
25 | #include <asm/pgtable.h> |
26 | #include <asm/mach/map.h> |
27 | |
28 | /* MX21 memory map definition */ |
29 | static struct map_desc imx21_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 = MX21_AIPI_BASE_ADDR_VIRT, |
40 | .pfn = __phys_to_pfn(MX21_AIPI_BASE_ADDR), |
41 | .length = MX21_AIPI_SIZE, |
42 | .type = MT_DEVICE |
43 | }, |
44 | /* |
45 | * this fixed mapping covers: |
46 | * - CSI |
47 | * - ATA |
48 | */ |
49 | { |
50 | .virtual = MX21_SAHB1_BASE_ADDR_VIRT, |
51 | .pfn = __phys_to_pfn(MX21_SAHB1_BASE_ADDR), |
52 | .length = MX21_SAHB1_SIZE, |
53 | .type = MT_DEVICE |
54 | }, |
55 | /* |
56 | * this fixed mapping covers: |
57 | * - EMI |
58 | */ |
59 | { |
60 | .virtual = MX21_X_MEMC_BASE_ADDR_VIRT, |
61 | .pfn = __phys_to_pfn(MX21_X_MEMC_BASE_ADDR), |
62 | .length = MX21_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 | */ |
72 | void __init mx21_map_io(void) |
73 | { |
74 | mxc_set_cpu_type(MXC_CPU_MX21); |
75 | mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR)); |
76 | |
77 | iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc)); |
78 | } |
79 | |
80 | int imx21_register_gpios(void); |
81 | |
82 | void __init mx21_init_irq(void) |
83 | { |
84 | mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR)); |
85 | imx21_register_gpios(); |
86 | } |
87 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9