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 <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/* MX21 memory map definition */
32static struct map_desc imx21_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(MX21, AIPI, MT_DEVICE),
42	/*
43	 * this fixed mapping covers:
44	 * - CSI
45	 * - ATA
46	 */
47	imx_map_entry(MX21, SAHB1, MT_DEVICE),
48	/*
49	 * this fixed mapping covers:
50	 * - EMI
51	 */
52	imx_map_entry(MX21, 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 */
60void __init mx21_map_io(void)
61{
62	iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc));
63}
64
65void __init imx21_init_early(void)
66{
67	mxc_set_cpu_type(MXC_CPU_MX21);
68	mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR));
69	imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR),
70			MX21_NUM_GPIO_PORT);
71}
72
73void __init mx21_init_irq(void)
74{
75	mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
76}
77
78void __init imx21_soc_init(void)
79{
80	mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
81	mxc_register_gpio("imx21-gpio", 1, MX21_GPIO2_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
82	mxc_register_gpio("imx21-gpio", 2, MX21_GPIO3_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
83	mxc_register_gpio("imx21-gpio", 3, MX21_GPIO4_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
84	mxc_register_gpio("imx21-gpio", 4, MX21_GPIO5_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
85	mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
86
87	imx_add_imx_dma();
88}