1 /*
2 * arch/arm/mach-imx/mm-imx27.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 <mach/devices-common.h>
26 #include <asm/pgtable.h>
27 #include <asm/mach/map.h>
28 #include <mach/irqs.h>
29 #include <mach/iomux-v1.h>
30
31 /* MX27 memory map definition */
32 static struct map_desc imx27_io_desc[] __initdata = {
33 /*
34 * this fixed mapping covers:
35 * - AIPI1
36 * - AIPI2
37 * - AITC
38 * - ROM Patch
39 * - and some reserved space
40 */
41 imx_map_entry(MX27, AIPI, MT_DEVICE),
42 /*
43 * this fixed mapping covers:
44 * - CSI
45 * - ATA
46 */
47 imx_map_entry(MX27, SAHB1, MT_DEVICE),
48 /*
49 * this fixed mapping covers:
50 * - EMI
51 */
52 imx_map_entry(MX27, X_MEMC, MT_DEVICE),
53 };
54
55 /*
56 * Initialize the memory map. It is called during the
57 * system startup to create static physical to virtual
58 * memory map for the IO modules.
59 */
mx27_map_io(void)60 void __init mx27_map_io(void)
61 {
62 iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
63 }
64
imx27_init_early(void)65 void __init imx27_init_early(void)
66 {
67 mxc_set_cpu_type(MXC_CPU_MX27);
68 mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR));
69 imx_iomuxv1_init(MX27_IO_ADDRESS(MX27_GPIO_BASE_ADDR),
70 MX27_NUM_GPIO_PORT);
71 }
72
mx27_init_irq(void)73 void __init mx27_init_irq(void)
74 {
75 mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR));
76 }
77
imx27_soc_init(void)78 void __init imx27_soc_init(void)
79 {
80 /* i.mx27 has the i.mx21 type gpio */
81 mxc_register_gpio("imx21-gpio", 0, MX27_GPIO1_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
82 mxc_register_gpio("imx21-gpio", 1, MX27_GPIO2_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
83 mxc_register_gpio("imx21-gpio", 2, MX27_GPIO3_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
84 mxc_register_gpio("imx21-gpio", 3, MX27_GPIO4_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
85 mxc_register_gpio("imx21-gpio", 4, MX27_GPIO5_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
86 mxc_register_gpio("imx21-gpio", 5, MX27_GPIO6_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
87
88 imx_add_imx_dma();
89 }
90