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da177247 GI |
1 | /* |
2 | * board-omap3pandora.c (Pandora Handheld Console) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * version 2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
16 | * 02110-1301 USA | |
17 | * | |
18 | */ | |
19 | ||
20 | #include <linux/init.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/platform_device.h> | |
23 | ||
24 | #include <linux/spi/spi.h> | |
25 | #include <linux/spi/ads7846.h> | |
26 | #include <linux/i2c/twl4030.h> | |
27 | ||
28 | #include <asm/mach-types.h> | |
29 | #include <asm/mach/arch.h> | |
30 | #include <asm/mach/map.h> | |
31 | ||
32 | #include <mach/board.h> | |
33 | #include <mach/common.h> | |
34 | #include <mach/gpio.h> | |
35 | #include <mach/hardware.h> | |
36 | #include <mach/mcspi.h> | |
18cb7aca | 37 | #include <mach/usb.h> |
da177247 | 38 | |
90c62bf0 TL |
39 | #include "mmc-twl4030.h" |
40 | ||
da177247 GI |
41 | #define OMAP3_PANDORA_TS_GPIO 94 |
42 | ||
90c62bf0 TL |
43 | static struct twl4030_hsmmc_info omap3pandora_mmc[] = { |
44 | { | |
45 | .mmc = 1, | |
46 | .wires = 4, | |
47 | .gpio_cd = -EINVAL, | |
48 | .gpio_wp = 126, | |
49 | .ext_clock = 0, | |
50 | }, | |
51 | { | |
52 | .mmc = 2, | |
53 | .wires = 4, | |
54 | .gpio_cd = -EINVAL, | |
55 | .gpio_wp = 127, | |
56 | .ext_clock = 1, | |
0329c377 | 57 | .transceiver = true, |
90c62bf0 | 58 | }, |
07d83cc9 GI |
59 | { |
60 | .mmc = 3, | |
61 | .wires = 4, | |
62 | .gpio_cd = -EINVAL, | |
63 | .gpio_wp = -EINVAL, | |
64 | }, | |
90c62bf0 TL |
65 | {} /* Terminator */ |
66 | }; | |
67 | ||
da177247 GI |
68 | static struct omap_uart_config omap3pandora_uart_config __initdata = { |
69 | .enabled_uarts = (1 << 2), /* UART3 */ | |
70 | }; | |
71 | ||
90c62bf0 TL |
72 | static int omap3pandora_twl_gpio_setup(struct device *dev, |
73 | unsigned gpio, unsigned ngpio) | |
74 | { | |
75 | /* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */ | |
76 | omap3pandora_mmc[0].gpio_cd = gpio + 0; | |
77 | omap3pandora_mmc[1].gpio_cd = gpio + 1; | |
78 | twl4030_mmc_init(omap3pandora_mmc); | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
da177247 GI |
83 | static struct twl4030_gpio_platform_data omap3pandora_gpio_data = { |
84 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
85 | .irq_base = TWL4030_GPIO_IRQ_BASE, | |
86 | .irq_end = TWL4030_GPIO_IRQ_END, | |
90c62bf0 | 87 | .setup = omap3pandora_twl_gpio_setup, |
da177247 GI |
88 | }; |
89 | ||
90 | static struct twl4030_usb_data omap3pandora_usb_data = { | |
91 | .usb_mode = T2_USB_MODE_ULPI, | |
92 | }; | |
93 | ||
94 | static struct twl4030_platform_data omap3pandora_twldata = { | |
95 | .irq_base = TWL4030_IRQ_BASE, | |
96 | .irq_end = TWL4030_IRQ_END, | |
97 | .gpio = &omap3pandora_gpio_data, | |
98 | .usb = &omap3pandora_usb_data, | |
99 | }; | |
100 | ||
101 | static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = { | |
102 | { | |
103 | I2C_BOARD_INFO("tps65950", 0x48), | |
104 | .flags = I2C_CLIENT_WAKE, | |
105 | .irq = INT_34XX_SYS_NIRQ, | |
106 | .platform_data = &omap3pandora_twldata, | |
107 | }, | |
108 | }; | |
109 | ||
110 | static int __init omap3pandora_i2c_init(void) | |
111 | { | |
112 | omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo, | |
113 | ARRAY_SIZE(omap3pandora_i2c_boardinfo)); | |
114 | /* i2c2 pins are not connected */ | |
115 | omap_register_i2c_bus(3, 400, NULL, 0); | |
116 | return 0; | |
117 | } | |
118 | ||
119 | static void __init omap3pandora_init_irq(void) | |
120 | { | |
2f3ec501 | 121 | omap2_init_common_hw(NULL); |
da177247 GI |
122 | omap_init_irq(); |
123 | omap_gpio_init(); | |
124 | } | |
125 | ||
126 | static void __init omap3pandora_ads7846_init(void) | |
127 | { | |
128 | int gpio = OMAP3_PANDORA_TS_GPIO; | |
129 | int ret; | |
130 | ||
131 | ret = gpio_request(gpio, "ads7846_pen_down"); | |
132 | if (ret < 0) { | |
133 | printk(KERN_ERR "Failed to request GPIO %d for " | |
134 | "ads7846 pen down IRQ\n", gpio); | |
135 | return; | |
136 | } | |
137 | ||
138 | gpio_direction_input(gpio); | |
139 | } | |
140 | ||
141 | static int ads7846_get_pendown_state(void) | |
142 | { | |
143 | return !gpio_get_value(OMAP3_PANDORA_TS_GPIO); | |
144 | } | |
145 | ||
146 | static struct ads7846_platform_data ads7846_config = { | |
147 | .x_max = 0x0fff, | |
148 | .y_max = 0x0fff, | |
149 | .x_plate_ohms = 180, | |
150 | .pressure_max = 255, | |
151 | .debounce_max = 10, | |
152 | .debounce_tol = 3, | |
153 | .debounce_rep = 1, | |
154 | .get_pendown_state = ads7846_get_pendown_state, | |
155 | .keep_vref_on = 1, | |
156 | }; | |
157 | ||
158 | static struct omap2_mcspi_device_config ads7846_mcspi_config = { | |
159 | .turbo_mode = 0, | |
160 | .single_channel = 1, /* 0: slave, 1: master */ | |
161 | }; | |
162 | ||
163 | static struct spi_board_info omap3pandora_spi_board_info[] __initdata = { | |
164 | { | |
165 | .modalias = "ads7846", | |
166 | .bus_num = 1, | |
167 | .chip_select = 0, | |
168 | .max_speed_hz = 1500000, | |
169 | .controller_data = &ads7846_mcspi_config, | |
170 | .irq = OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO), | |
171 | .platform_data = &ads7846_config, | |
172 | } | |
173 | }; | |
174 | ||
175 | static struct platform_device omap3pandora_lcd_device = { | |
176 | .name = "pandora_lcd", | |
177 | .id = -1, | |
178 | }; | |
179 | ||
180 | static struct omap_lcd_config omap3pandora_lcd_config __initdata = { | |
181 | .ctrl_name = "internal", | |
182 | }; | |
183 | ||
184 | static struct omap_board_config_kernel omap3pandora_config[] __initdata = { | |
185 | { OMAP_TAG_UART, &omap3pandora_uart_config }, | |
186 | { OMAP_TAG_LCD, &omap3pandora_lcd_config }, | |
187 | }; | |
188 | ||
189 | static struct platform_device *omap3pandora_devices[] __initdata = { | |
190 | &omap3pandora_lcd_device, | |
191 | }; | |
192 | ||
193 | static void __init omap3pandora_init(void) | |
194 | { | |
195 | omap3pandora_i2c_init(); | |
196 | platform_add_devices(omap3pandora_devices, | |
197 | ARRAY_SIZE(omap3pandora_devices)); | |
198 | omap_board_config = omap3pandora_config; | |
199 | omap_board_config_size = ARRAY_SIZE(omap3pandora_config); | |
200 | omap_serial_init(); | |
201 | spi_register_board_info(omap3pandora_spi_board_info, | |
202 | ARRAY_SIZE(omap3pandora_spi_board_info)); | |
203 | omap3pandora_ads7846_init(); | |
18cb7aca | 204 | usb_musb_init(); |
da177247 GI |
205 | } |
206 | ||
207 | static void __init omap3pandora_map_io(void) | |
208 | { | |
209 | omap2_set_globals_343x(); | |
210 | omap2_map_common_io(); | |
211 | } | |
212 | ||
213 | MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console") | |
214 | .phys_io = 0x48000000, | |
215 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
216 | .boot_params = 0x80000100, | |
217 | .map_io = omap3pandora_map_io, | |
218 | .init_irq = omap3pandora_init_irq, | |
219 | .init_machine = omap3pandora_init, | |
220 | .timer = &omap_timer, | |
221 | MACHINE_END |