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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 <linux/pinctrl/machine.h> | |
24 | #include <asm/pgtable.h> | |
25 | #include <asm/mach/map.h> | |
26 | ||
27 | #include "common.h" | |
28 | #include "devices/devices-common.h" | |
29 | #include "hardware.h" | |
30 | #include "iomux-v1.h" | |
31 | ||
32 | /* MX21 memory map definition */ | |
33 | static struct map_desc imx21_io_desc[] __initdata = { | |
34 | /* | |
35 | * this fixed mapping covers: | |
36 | * - AIPI1 | |
37 | * - AIPI2 | |
38 | * - AITC | |
39 | * - ROM Patch | |
40 | * - and some reserved space | |
41 | */ | |
42 | imx_map_entry(MX21, AIPI, MT_DEVICE), | |
43 | /* | |
44 | * this fixed mapping covers: | |
45 | * - CSI | |
46 | * - ATA | |
47 | */ | |
48 | imx_map_entry(MX21, SAHB1, MT_DEVICE), | |
49 | /* | |
50 | * this fixed mapping covers: | |
51 | * - EMI | |
52 | */ | |
53 | imx_map_entry(MX21, X_MEMC, MT_DEVICE), | |
54 | }; | |
55 | ||
56 | /* | |
57 | * Initialize the memory map. It is called during the | |
58 | * system startup to create static physical to virtual | |
59 | * memory map for the IO modules. | |
60 | */ | |
61 | void __init mx21_map_io(void) | |
62 | { | |
63 | iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc)); | |
64 | } | |
65 | ||
66 | void __init imx21_init_early(void) | |
67 | { | |
68 | mxc_set_cpu_type(MXC_CPU_MX21); | |
69 | imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR), | |
70 | MX21_NUM_GPIO_PORT); | |
71 | } | |
72 | ||
73 | void __init mx21_init_irq(void) | |
74 | { | |
75 | mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR)); | |
76 | } | |
77 | ||
78 | static const struct resource imx21_audmux_res[] __initconst = { | |
79 | DEFINE_RES_MEM(MX21_AUDMUX_BASE_ADDR, SZ_4K), | |
80 | }; | |
81 | ||
82 | void __init imx21_soc_init(void) | |
83 | { | |
84 | mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR)); | |
85 | mxc_device_init(); | |
86 | ||
87 | mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); | |
88 | mxc_register_gpio("imx21-gpio", 1, MX21_GPIO2_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); | |
89 | mxc_register_gpio("imx21-gpio", 2, MX21_GPIO3_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); | |
90 | mxc_register_gpio("imx21-gpio", 3, MX21_GPIO4_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); | |
91 | mxc_register_gpio("imx21-gpio", 4, MX21_GPIO5_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); | |
92 | mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0); | |
93 | ||
94 | pinctrl_provide_dummies(); | |
95 | imx_add_imx_dma("imx21-dma", MX21_DMA_BASE_ADDR, | |
96 | MX21_INT_DMACH0, 0); /* No ERR irq */ | |
97 | platform_device_register_simple("imx21-audmux", 0, imx21_audmux_res, | |
98 | ARRAY_SIZE(imx21_audmux_res)); | |
99 | } |