Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
mach-mx51_3ds.c
Go to the documentation of this file.
1 /*
2  * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
3  * Copyright (C) 2010 Jason Wang <[email protected]>
4  *
5  * The code contained herein is licensed under the GNU General Public
6  * License. You may obtain a copy of the GNU General Public License
7  * Version 2 or later at the following locations:
8  *
9  * http://www.opensource.org/licenses/gpl-license.html
10  * http://www.gnu.org/copyleft/gpl.html
11  */
12 
13 #include <linux/irq.h>
14 #include <linux/platform_device.h>
15 #include <linux/spi/spi.h>
16 #include <linux/gpio.h>
17 
18 #include <asm/mach-types.h>
19 #include <asm/mach/arch.h>
20 #include <asm/mach/time.h>
21 
22 #include <mach/hardware.h>
23 #include <mach/common.h>
24 #include <mach/iomux-mx51.h>
25 #include <mach/3ds_debugboard.h>
26 
27 #include "devices-imx51.h"
28 
29 #define MX51_3DS_ECSPI2_CS (GPIO_PORTC + 28)
30 
31 static iomux_v3_cfg_t mx51_3ds_pads[] = {
32  /* UART1 */
37 
38  /* UART2 */
43 
44  /* UART3 */
49 
50  /* CPLD PARENT IRQ PIN */
52 
53  /* KPP */
64 
65  /* eCSPI2 */
70 };
71 
72 /* Serial ports */
73 static const struct imxuart_platform_data uart_pdata __initconst = {
74  .flags = IMXUART_HAVE_RTSCTS,
75 };
76 
77 static int mx51_3ds_board_keymap[] = {
78  KEY(0, 0, KEY_1),
79  KEY(0, 1, KEY_2),
80  KEY(0, 2, KEY_3),
81  KEY(0, 3, KEY_F1),
82  KEY(0, 4, KEY_UP),
83  KEY(0, 5, KEY_F2),
84 
85  KEY(1, 0, KEY_4),
86  KEY(1, 1, KEY_5),
87  KEY(1, 2, KEY_6),
88  KEY(1, 3, KEY_LEFT),
89  KEY(1, 4, KEY_SELECT),
90  KEY(1, 5, KEY_RIGHT),
91 
92  KEY(2, 0, KEY_7),
93  KEY(2, 1, KEY_8),
94  KEY(2, 2, KEY_9),
95  KEY(2, 3, KEY_F3),
96  KEY(2, 4, KEY_DOWN),
97  KEY(2, 5, KEY_F4),
98 
99  KEY(3, 0, KEY_0),
100  KEY(3, 1, KEY_OK),
101  KEY(3, 2, KEY_ESC),
102  KEY(3, 3, KEY_ENTER),
103  KEY(3, 4, KEY_MENU),
104  KEY(3, 5, KEY_BACK)
105 };
106 
107 static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
108  .keymap = mx51_3ds_board_keymap,
109  .keymap_size = ARRAY_SIZE(mx51_3ds_board_keymap),
110 };
111 
112 static int mx51_3ds_spi2_cs[] = {
113  MXC_SPI_CS(0),
115 };
116 
117 static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
118  .chipselect = mx51_3ds_spi2_cs,
119  .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
120 };
121 
122 static struct spi_board_info mx51_3ds_spi_nor_device[] = {
123  {
124  .modalias = "m25p80",
125  .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
126  .bus_num = 1,
127  .chip_select = 1,
128  .mode = SPI_MODE_0,
129  .platform_data = NULL,},
130 };
131 
132 /*
133  * Board specific initialization.
134  */
135 static void __init mx51_3ds_init(void)
136 {
137  imx51_soc_init();
138 
139  mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
140  ARRAY_SIZE(mx51_3ds_pads));
141 
142  imx51_add_imx_uart(0, &uart_pdata);
143  imx51_add_imx_uart(1, &uart_pdata);
144  imx51_add_imx_uart(2, &uart_pdata);
145 
146  imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
147  spi_register_board_info(mx51_3ds_spi_nor_device,
148  ARRAY_SIZE(mx51_3ds_spi_nor_device));
149 
151  printk(KERN_WARNING "Init of the debugboard failed, all "
152  "devices on the board are unusable.\n");
153 
155  imx51_add_imx_keypad(&mx51_3ds_map_data);
157 }
158 
159 static void __init mx51_3ds_timer_init(void)
160 {
161  mx51_clocks_init(32768, 24000000, 22579200, 0);
162 }
163 
164 static struct sys_timer mx51_3ds_timer = {
165  .init = mx51_3ds_timer_init,
166 };
167 
168 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
169  /* Maintainer: Freescale Semiconductor, Inc. */
170  .atag_offset = 0x100,
171  .map_io = mx51_map_io,
172  .init_early = imx51_init_early,
173  .init_irq = mx51_init_irq,
174  .handle_irq = imx51_handle_irq,
175  .timer = &mx51_3ds_timer,
176  .init_machine = mx51_3ds_init,
177  .init_late = imx51_init_late,
178  .restart = mxc_restart,