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Juergen Beiserteea643f2008-07-05 10:02:56 +02001/*
Uwe Kleine-Königd1091672010-06-10 15:11:13 +02002 * arch/arm/mach-imx/mm-imx21.c
Juergen Beiserteea643f2008-07-05 10:02:56 +02003 *
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>
Russell Kinga09e64f2008-08-05 16:14:15 +010023#include <mach/hardware.h>
Holger Schurig058b7a62009-01-26 16:34:51 +010024#include <mach/common.h>
Shawn Guo36223602011-06-22 22:41:30 +080025#include <mach/devices-common.h>
Juergen Beiserteea643f2008-07-05 10:02:56 +020026#include <asm/pgtable.h>
27#include <asm/mach/map.h>
Sascha Hauer5ae30b42011-02-17 14:43:48 +010028#include <mach/irqs.h>
Sascha Hauerff255fe2011-02-17 15:08:12 +010029#include <mach/iomux-v1.h>
Juergen Beiserteea643f2008-07-05 10:02:56 +020030
Uwe Kleine-König4a50d002010-02-05 22:00:11 +010031/* MX21 memory map definition */
32static struct map_desc imx21_io_desc[] __initdata = {
Juergen Beiserteea643f2008-07-05 10:02:56 +020033 /*
34 * this fixed mapping covers:
35 * - AIPI1
36 * - AIPI2
37 * - AITC
38 * - ROM Patch
39 * - and some reserved space
40 */
Uwe Kleine-König08ff97b2010-10-25 15:38:09 +020041 imx_map_entry(MX21, AIPI, MT_DEVICE),
Juergen Beiserteea643f2008-07-05 10:02:56 +020042 /*
43 * this fixed mapping covers:
44 * - CSI
45 * - ATA
46 */
Uwe Kleine-König08ff97b2010-10-25 15:38:09 +020047 imx_map_entry(MX21, SAHB1, MT_DEVICE),
Juergen Beiserteea643f2008-07-05 10:02:56 +020048 /*
49 * this fixed mapping covers:
50 * - EMI
51 */
Uwe Kleine-König08ff97b2010-10-25 15:38:09 +020052 imx_map_entry(MX21, X_MEMC, MT_DEVICE),
Juergen Beiserteea643f2008-07-05 10:02:56 +020053};
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 */
Sascha Hauercd4a05f2009-04-02 22:32:10 +020060void __init mx21_map_io(void)
Juergen Beiserteea643f2008-07-05 10:02:56 +020061{
Uwe Kleine-König3dac2192011-02-07 16:35:19 +010062 iotable_init(imx21_io_desc, ARRAY_SIZE(imx21_io_desc));
63}
64
65void __init imx21_init_early(void)
66{
Sascha Hauercd4a05f2009-04-02 22:32:10 +020067 mxc_set_cpu_type(MXC_CPU_MX21);
Uwe Kleine-König4a50d002010-02-05 22:00:11 +010068 mxc_arch_reset_init(MX21_IO_ADDRESS(MX21_WDOG_BASE_ADDR));
Sascha Hauerff255fe2011-02-17 15:08:12 +010069 imx_iomuxv1_init(MX21_IO_ADDRESS(MX21_GPIO_BASE_ADDR),
70 MX21_NUM_GPIO_PORT);
Sascha Hauerc5aa0ad2009-05-25 17:36:19 +020071}
72
73void __init mx21_init_irq(void)
74{
Uwe Kleine-König4a50d002010-02-05 22:00:11 +010075 mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
Shawn Guob78d8e52011-06-06 00:07:55 +080076}
77
Richard Zhao3bc34a62012-03-05 22:30:52 +080078static const struct resource imx21_audmux_res[] __initconst = {
79 DEFINE_RES_MEM(MX21_AUDMUX_BASE_ADDR, SZ_4K),
80};
81
Shawn Guob78d8e52011-06-06 00:07:55 +080082void __init imx21_soc_init(void)
83{
Shawn Guoe7fc6ae2011-07-07 00:37:41 +080084 mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
85 mxc_register_gpio("imx21-gpio", 1, MX21_GPIO2_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
86 mxc_register_gpio("imx21-gpio", 2, MX21_GPIO3_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
87 mxc_register_gpio("imx21-gpio", 3, MX21_GPIO4_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
88 mxc_register_gpio("imx21-gpio", 4, MX21_GPIO5_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
89 mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
Shawn Guo36223602011-06-22 22:41:30 +080090
91 imx_add_imx_dma();
Richard Zhao3bc34a62012-03-05 22:30:52 +080092 platform_device_register_simple("imx21-audmux", 0, imx21_audmux_res,
93 ARRAY_SIZE(imx21_audmux_res));
Sascha Hauerc5aa0ad2009-05-25 17:36:19 +020094}