1 /*
2 *
3 * Copyright (C) 2010 Eric Bénard <eric@eukrea.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/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/serial_8250.h>
16 #include <linux/i2c.h>
17 #include <linux/gpio.h>
18 #include <linux/io.h>
19 #include <linux/interrupt.h>
20 #include <linux/irq.h>
21 #include <linux/i2c/tsc2007.h>
22 #include <linux/leds.h>
23
24 #include <mach/common.h>
25 #include <mach/hardware.h>
26 #include <mach/iomux-mx51.h>
27
28 #include <asm/mach/arch.h>
29
30 #include "devices-imx51.h"
31
32 #define MBIMX51_TSC2007_GPIO IMX_GPIO_NR(3, 30)
33 #define MBIMX51_LED0 IMX_GPIO_NR(3, 5)
34 #define MBIMX51_LED1 IMX_GPIO_NR(3, 6)
35 #define MBIMX51_LED2 IMX_GPIO_NR(3, 7)
36 #define MBIMX51_LED3 IMX_GPIO_NR(3, 8)
37
38 static const struct gpio_led mbimx51_leds[] __initconst = {
39 {
40 .name = "led0",
41 .default_trigger = "heartbeat",
42 .active_low = 1,
43 .gpio = MBIMX51_LED0,
44 },
45 {
46 .name = "led1",
47 .default_trigger = "nand-disk",
48 .active_low = 1,
49 .gpio = MBIMX51_LED1,
50 },
51 {
52 .name = "led2",
53 .default_trigger = "mmc0",
54 .active_low = 1,
55 .gpio = MBIMX51_LED2,
56 },
57 {
58 .name = "led3",
59 .default_trigger = "default-on",
60 .active_low = 1,
61 .gpio = MBIMX51_LED3,
62 },
63 };
64
65 static const struct gpio_led_platform_data mbimx51_leds_info __initconst = {
66 .leds = mbimx51_leds,
67 .num_leds = ARRAY_SIZE(mbimx51_leds),
68 };
69
70 static iomux_v3_cfg_t mbimx51_pads[] = {
71 /* UART2 */
72 MX51_PAD_UART2_RXD__UART2_RXD,
73 MX51_PAD_UART2_TXD__UART2_TXD,
74
75 /* UART3 */
76 MX51_PAD_UART3_RXD__UART3_RXD,
77 MX51_PAD_UART3_TXD__UART3_TXD,
78 MX51_PAD_KEY_COL4__UART3_RTS,
79 MX51_PAD_KEY_COL5__UART3_CTS,
80
81 /* TSC2007 IRQ */
82 MX51_PAD_NANDF_D10__GPIO3_30,
83
84 /* LEDS */
85 MX51_PAD_DISPB2_SER_DIN__GPIO3_5,
86 MX51_PAD_DISPB2_SER_DIO__GPIO3_6,
87 MX51_PAD_DISPB2_SER_CLK__GPIO3_7,
88 MX51_PAD_DISPB2_SER_RS__GPIO3_8,
89
90 /* KPP */
91 MX51_PAD_KEY_ROW0__KEY_ROW0,
92 MX51_PAD_KEY_ROW1__KEY_ROW1,
93 MX51_PAD_KEY_ROW2__KEY_ROW2,
94 MX51_PAD_KEY_ROW3__KEY_ROW3,
95 MX51_PAD_KEY_COL0__KEY_COL0,
96 MX51_PAD_KEY_COL1__KEY_COL1,
97 MX51_PAD_KEY_COL2__KEY_COL2,
98 MX51_PAD_KEY_COL3__KEY_COL3,
99
100 /* SD 1 */
101 MX51_PAD_SD1_CMD__SD1_CMD,
102 MX51_PAD_SD1_CLK__SD1_CLK,
103 MX51_PAD_SD1_DATA0__SD1_DATA0,
104 MX51_PAD_SD1_DATA1__SD1_DATA1,
105 MX51_PAD_SD1_DATA2__SD1_DATA2,
106 MX51_PAD_SD1_DATA3__SD1_DATA3,
107
108 /* SD 2 */
109 MX51_PAD_SD2_CMD__SD2_CMD,
110 MX51_PAD_SD2_CLK__SD2_CLK,
111 MX51_PAD_SD2_DATA0__SD2_DATA0,
112 MX51_PAD_SD2_DATA1__SD2_DATA1,
113 MX51_PAD_SD2_DATA2__SD2_DATA2,
114 MX51_PAD_SD2_DATA3__SD2_DATA3,
115 };
116
117 static const struct imxuart_platform_data uart_pdata __initconst = {
118 .flags = IMXUART_HAVE_RTSCTS,
119 };
120
121 static int mbimx51_keymap[] = {
122 KEY(0, 0, KEY_1),
123 KEY(0, 1, KEY_2),
124 KEY(0, 2, KEY_3),
125 KEY(0, 3, KEY_UP),
126
127 KEY(1, 0, KEY_4),
128 KEY(1, 1, KEY_5),
129 KEY(1, 2, KEY_6),
130 KEY(1, 3, KEY_LEFT),
131
132 KEY(2, 0, KEY_7),
133 KEY(2, 1, KEY_8),
134 KEY(2, 2, KEY_9),
135 KEY(2, 3, KEY_RIGHT),
136
137 KEY(3, 0, KEY_0),
138 KEY(3, 1, KEY_DOWN),
139 KEY(3, 2, KEY_ESC),
140 KEY(3, 3, KEY_ENTER),
141 };
142
143 static const struct matrix_keymap_data mbimx51_map_data __initconst = {
144 .keymap = mbimx51_keymap,
145 .keymap_size = ARRAY_SIZE(mbimx51_keymap),
146 };
147
tsc2007_get_pendown_state(void)148 static int tsc2007_get_pendown_state(void)
149 {
150 return !gpio_get_value(MBIMX51_TSC2007_GPIO);
151 }
152
153 struct tsc2007_platform_data tsc2007_data = {
154 .model = 2007,
155 .x_plate_ohms = 180,
156 .get_pendown_state = tsc2007_get_pendown_state,
157 };
158
159 static struct i2c_board_info mbimx51_i2c_devices[] = {
160 {
161 I2C_BOARD_INFO("tsc2007", 0x49),
162 .irq = IMX_GPIO_TO_IRQ(MBIMX51_TSC2007_GPIO),
163 .platform_data = &tsc2007_data,
164 }, {
165 I2C_BOARD_INFO("tlv320aic23", 0x1a),
166 },
167 };
168
169 /*
170 * baseboard initialization.
171 */
eukrea_mbimx51_baseboard_init(void)172 void __init eukrea_mbimx51_baseboard_init(void)
173 {
174 mxc_iomux_v3_setup_multiple_pads(mbimx51_pads,
175 ARRAY_SIZE(mbimx51_pads));
176
177 imx51_add_imx_uart(1, NULL);
178 imx51_add_imx_uart(2, &uart_pdata);
179
180 gpio_request(MBIMX51_LED0, "LED0");
181 gpio_direction_output(MBIMX51_LED0, 1);
182 gpio_free(MBIMX51_LED0);
183 gpio_request(MBIMX51_LED1, "LED1");
184 gpio_direction_output(MBIMX51_LED1, 1);
185 gpio_free(MBIMX51_LED1);
186 gpio_request(MBIMX51_LED2, "LED2");
187 gpio_direction_output(MBIMX51_LED2, 1);
188 gpio_free(MBIMX51_LED2);
189 gpio_request(MBIMX51_LED3, "LED3");
190 gpio_direction_output(MBIMX51_LED3, 1);
191 gpio_free(MBIMX51_LED3);
192
193 gpio_led_register_device(-1, &mbimx51_leds_info);
194
195 imx51_add_imx_keypad(&mbimx51_map_data);
196
197 gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");
198 gpio_direction_input(MBIMX51_TSC2007_GPIO);
199 irq_set_irq_type(gpio_to_irq(MBIMX51_TSC2007_GPIO),
200 IRQF_TRIGGER_FALLING);
201 i2c_register_board_info(1, mbimx51_i2c_devices,
202 ARRAY_SIZE(mbimx51_i2c_devices));
203
204 imx51_add_sdhci_esdhc_imx(0, NULL);
205 imx51_add_sdhci_esdhc_imx(1, NULL);
206 }
207