1 /*
2 * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
3 * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>
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
17 #include <asm/mach-types.h>
18 #include <asm/mach/arch.h>
19 #include <asm/mach/time.h>
20
21 #include <mach/hardware.h>
22 #include <mach/common.h>
23 #include <mach/iomux-mx51.h>
24 #include <mach/3ds_debugboard.h>
25
26 #include "devices-imx51.h"
27 #include "devices.h"
28
29 #define EXPIO_PARENT_INT (MXC_INTERNAL_IRQS + GPIO_PORTA + 6)
30 #define MX51_3DS_ECSPI2_CS (GPIO_PORTC + 28)
31
32 static iomux_v3_cfg_t mx51_3ds_pads[] = {
33 /* UART1 */
34 MX51_PAD_UART1_RXD__UART1_RXD,
35 MX51_PAD_UART1_TXD__UART1_TXD,
36 MX51_PAD_UART1_RTS__UART1_RTS,
37 MX51_PAD_UART1_CTS__UART1_CTS,
38
39 /* UART2 */
40 MX51_PAD_UART2_RXD__UART2_RXD,
41 MX51_PAD_UART2_TXD__UART2_TXD,
42 MX51_PAD_EIM_D25__UART2_CTS,
43 MX51_PAD_EIM_D26__UART2_RTS,
44
45 /* UART3 */
46 MX51_PAD_UART3_RXD__UART3_RXD,
47 MX51_PAD_UART3_TXD__UART3_TXD,
48 MX51_PAD_EIM_D24__UART3_CTS,
49 MX51_PAD_EIM_D27__UART3_RTS,
50
51 /* CPLD PARENT IRQ PIN */
52 MX51_PAD_GPIO1_6__GPIO1_6,
53
54 /* KPP */
55 MX51_PAD_KEY_ROW0__KEY_ROW0,
56 MX51_PAD_KEY_ROW1__KEY_ROW1,
57 MX51_PAD_KEY_ROW2__KEY_ROW2,
58 MX51_PAD_KEY_ROW3__KEY_ROW3,
59 MX51_PAD_KEY_COL0__KEY_COL0,
60 MX51_PAD_KEY_COL1__KEY_COL1,
61 MX51_PAD_KEY_COL2__KEY_COL2,
62 MX51_PAD_KEY_COL3__KEY_COL3,
63 MX51_PAD_KEY_COL4__KEY_COL4,
64 MX51_PAD_KEY_COL5__KEY_COL5,
65
66 /* eCSPI2 */
67 MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
68 MX51_PAD_NANDF_RB3__ECSPI2_MISO,
69 MX51_PAD_NANDF_D15__ECSPI2_MOSI,
70 MX51_PAD_NANDF_D12__GPIO3_28,
71 };
72
73 /* Serial ports */
74 static const struct imxuart_platform_data uart_pdata __initconst = {
75 .flags = IMXUART_HAVE_RTSCTS,
76 };
77
78 static int mx51_3ds_board_keymap[] = {
79 KEY(0, 0, KEY_1),
80 KEY(0, 1, KEY_2),
81 KEY(0, 2, KEY_3),
82 KEY(0, 3, KEY_F1),
83 KEY(0, 4, KEY_UP),
84 KEY(0, 5, KEY_F2),
85
86 KEY(1, 0, KEY_4),
87 KEY(1, 1, KEY_5),
88 KEY(1, 2, KEY_6),
89 KEY(1, 3, KEY_LEFT),
90 KEY(1, 4, KEY_SELECT),
91 KEY(1, 5, KEY_RIGHT),
92
93 KEY(2, 0, KEY_7),
94 KEY(2, 1, KEY_8),
95 KEY(2, 2, KEY_9),
96 KEY(2, 3, KEY_F3),
97 KEY(2, 4, KEY_DOWN),
98 KEY(2, 5, KEY_F4),
99
100 KEY(3, 0, KEY_0),
101 KEY(3, 1, KEY_OK),
102 KEY(3, 2, KEY_ESC),
103 KEY(3, 3, KEY_ENTER),
104 KEY(3, 4, KEY_MENU),
105 KEY(3, 5, KEY_BACK)
106 };
107
108 static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
109 .keymap = mx51_3ds_board_keymap,
110 .keymap_size = ARRAY_SIZE(mx51_3ds_board_keymap),
111 };
112
113 static int mx51_3ds_spi2_cs[] = {
114 MXC_SPI_CS(0),
115 MX51_3DS_ECSPI2_CS,
116 };
117
118 static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
119 .chipselect = mx51_3ds_spi2_cs,
120 .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
121 };
122
123 static struct spi_board_info mx51_3ds_spi_nor_device[] = {
124 {
125 .modalias = "m25p80",
126 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
127 .bus_num = 1,
128 .chip_select = 1,
129 .mode = SPI_MODE_0,
130 .platform_data = NULL,},
131 };
132
133 /*
134 * Board specific initialization.
135 */
mx51_3ds_init(void)136 static void __init mx51_3ds_init(void)
137 {
138 mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
139 ARRAY_SIZE(mx51_3ds_pads));
140
141 imx51_add_imx_uart(0, &uart_pdata);
142 imx51_add_imx_uart(1, &uart_pdata);
143 imx51_add_imx_uart(2, &uart_pdata);
144
145 imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
146 spi_register_board_info(mx51_3ds_spi_nor_device,
147 ARRAY_SIZE(mx51_3ds_spi_nor_device));
148
149 if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
150 printk(KERN_WARNING "Init of the debugboard failed, all "
151 "devices on the board are unusable.\n");
152
153 imx51_add_sdhci_esdhc_imx(0, NULL);
154 imx51_add_imx_keypad(&mx51_3ds_map_data);
155 imx51_add_imx2_wdt(0, NULL);
156 }
157
mx51_3ds_timer_init(void)158 static void __init mx51_3ds_timer_init(void)
159 {
160 mx51_clocks_init(32768, 24000000, 22579200, 0);
161 }
162
163 static struct sys_timer mx51_3ds_timer = {
164 .init = mx51_3ds_timer_init,
165 };
166
167 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
168 /* Maintainer: Freescale Semiconductor, Inc. */
169 .boot_params = MX51_PHYS_OFFSET + 0x100,
170 .map_io = mx51_map_io,
171 .init_early = imx51_init_early,
172 .init_irq = mx51_init_irq,
173 .timer = &mx51_3ds_timer,
174 .init_machine = mx51_3ds_init,
175 MACHINE_END
176