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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-imx27.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>
Dong Aishenga2aa65a2012-05-02 19:31:20 +080023#include <linux/pinctrl/machine.h>
Juergen Beiserteea643f2008-07-05 10:02:56 +020024#include <asm/pgtable.h>
25#include <asm/mach/map.h>
Shawn Guo267dd342012-09-13 13:26:00 +080026
Shawn Guoe3372472012-09-13 21:01:00 +080027#include "common.h"
Shawn Guoe0557c02012-09-13 15:51:15 +080028#include "devices/devices-common.h"
Shawn Guo50f2de62012-09-14 14:14:45 +080029#include "hardware.h"
Shawn Guo267dd342012-09-13 13:26:00 +080030#include "iomux-v1.h"
Juergen Beiserteea643f2008-07-05 10:02:56 +020031
32/* MX27 memory map definition */
Uwe Kleine-König4a50d002010-02-05 22:00:11 +010033static struct map_desc imx27_io_desc[] __initdata = {
Juergen Beiserteea643f2008-07-05 10:02:56 +020034 /*
35 * this fixed mapping covers:
36 * - AIPI1
37 * - AIPI2
38 * - AITC
39 * - ROM Patch
40 * - and some reserved space
41 */
Uwe Kleine-König08ff97b2010-10-25 15:38:09 +020042 imx_map_entry(MX27, AIPI, MT_DEVICE),
Juergen Beiserteea643f2008-07-05 10:02:56 +020043 /*
44 * this fixed mapping covers:
45 * - CSI
46 * - ATA
47 */
Uwe Kleine-König08ff97b2010-10-25 15:38:09 +020048 imx_map_entry(MX27, SAHB1, MT_DEVICE),
Juergen Beiserteea643f2008-07-05 10:02:56 +020049 /*
50 * this fixed mapping covers:
51 * - EMI
52 */
Uwe Kleine-König08ff97b2010-10-25 15:38:09 +020053 imx_map_entry(MX27, X_MEMC, MT_DEVICE),
Juergen Beiserteea643f2008-07-05 10:02:56 +020054};
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 */
Sascha Hauercd4a05f2009-04-02 22:32:10 +020061void __init mx27_map_io(void)
62{
Uwe Kleine-König3dac2192011-02-07 16:35:19 +010063 iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
64}
65
66void __init imx27_init_early(void)
67{
Sascha Hauercd4a05f2009-04-02 22:32:10 +020068 mxc_set_cpu_type(MXC_CPU_MX27);
Uwe Kleine-König4a50d002010-02-05 22:00:11 +010069 mxc_arch_reset_init(MX27_IO_ADDRESS(MX27_WDOG_BASE_ADDR));
Sascha Hauerff255fe2011-02-17 15:08:12 +010070 imx_iomuxv1_init(MX27_IO_ADDRESS(MX27_GPIO_BASE_ADDR),
71 MX27_NUM_GPIO_PORT);
Sascha Hauercd4a05f2009-04-02 22:32:10 +020072}
73
Sascha Hauerc5aa0ad2009-05-25 17:36:19 +020074void __init mx27_init_irq(void)
75{
Uwe Kleine-König4a50d002010-02-05 22:00:11 +010076 mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR));
Shawn Guob78d8e52011-06-06 00:07:55 +080077}
78
Richard Zhao3bc34a62012-03-05 22:30:52 +080079static const struct resource imx27_audmux_res[] __initconst = {
80 DEFINE_RES_MEM(MX27_AUDMUX_BASE_ADDR, SZ_4K),
81};
82
Shawn Guob78d8e52011-06-06 00:07:55 +080083void __init imx27_soc_init(void)
84{
Shawn Guo69ac71d2012-09-20 14:21:16 +080085 mxc_device_init();
86
Shawn Guoe7fc6ae2011-07-07 00:37:41 +080087 /* i.mx27 has the i.mx21 type gpio */
88 mxc_register_gpio("imx21-gpio", 0, MX27_GPIO1_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
89 mxc_register_gpio("imx21-gpio", 1, MX27_GPIO2_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
90 mxc_register_gpio("imx21-gpio", 2, MX27_GPIO3_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
91 mxc_register_gpio("imx21-gpio", 3, MX27_GPIO4_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
92 mxc_register_gpio("imx21-gpio", 4, MX27_GPIO5_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
93 mxc_register_gpio("imx21-gpio", 5, MX27_GPIO6_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
Shawn Guo36223602011-06-22 22:41:30 +080094
Dong Aishenga2aa65a2012-05-02 19:31:20 +080095 pinctrl_provide_dummies();
Shawn Guoe51d0f02012-09-15 21:11:28 +080096 imx_add_imx_dma("imx27-dma", MX27_DMA_BASE_ADDR,
97 MX27_INT_DMACH0, 0); /* No ERR irq */
Richard Zhao3bc34a62012-03-05 22:30:52 +080098 /* imx27 has the imx21 type audmux */
99 platform_device_register_simple("imx21-audmux", 0, imx27_audmux_res,
100 ARRAY_SIZE(imx27_audmux_res));
Sascha Hauerc5aa0ad2009-05-25 17:36:19 +0200101}