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53c5ec31 SMK |
1 | /* |
2 | * linux/arch/arm/mach-omap2/board-omap3evm.c | |
3 | * | |
4 | * Copyright (C) 2008 Texas Instruments | |
5 | * | |
6 | * Modified from mach-omap2/board-3430sdp.c | |
7 | * | |
8 | * Initial code: Syed Mohammed Khasim | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/err.h> | |
20 | #include <linux/clk.h> | |
21 | #include <linux/gpio.h> | |
22 | #include <linux/input.h> | |
23 | #include <linux/leds.h> | |
24 | ||
25 | #include <linux/spi/spi.h> | |
26 | #include <linux/spi/ads7846.h> | |
27 | #include <linux/i2c/twl4030.h> | |
28 | ||
29 | #include <mach/hardware.h> | |
30 | #include <asm/mach-types.h> | |
31 | #include <asm/mach/arch.h> | |
32 | #include <asm/mach/map.h> | |
33 | ||
34 | #include <mach/board.h> | |
35 | #include <mach/mux.h> | |
36 | #include <mach/usb.h> | |
37 | #include <mach/common.h> | |
38 | #include <mach/mcspi.h> | |
39 | #include <mach/keypad.h> | |
40 | ||
41 | #include "sdram-micron-mt46h32m32lf-6.h" | |
42 | #include "mmc-twl4030.h" | |
43 | ||
44 | #define OMAP3_EVM_TS_GPIO 175 | |
45 | ||
46 | #define OMAP3EVM_ETHR_START 0x2c000000 | |
47 | #define OMAP3EVM_ETHR_SIZE 1024 | |
48 | #define OMAP3EVM_ETHR_GPIO_IRQ 176 | |
49 | #define OMAP3EVM_SMC911X_CS 5 | |
50 | ||
51 | static struct resource omap3evm_smc911x_resources[] = { | |
52 | [0] = { | |
53 | .start = OMAP3EVM_ETHR_START, | |
54 | .end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1), | |
55 | .flags = IORESOURCE_MEM, | |
56 | }, | |
57 | [1] = { | |
58 | .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ), | |
59 | .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ), | |
60 | .flags = IORESOURCE_IRQ, | |
61 | }, | |
62 | }; | |
63 | ||
64 | static struct platform_device omap3evm_smc911x_device = { | |
65 | .name = "smc911x", | |
66 | .id = -1, | |
67 | .num_resources = ARRAY_SIZE(omap3evm_smc911x_resources), | |
68 | .resource = &omap3evm_smc911x_resources[0], | |
69 | }; | |
70 | ||
71 | static inline void __init omap3evm_init_smc911x(void) | |
72 | { | |
73 | int eth_cs; | |
74 | struct clk *l3ck; | |
75 | unsigned int rate; | |
76 | ||
77 | eth_cs = OMAP3EVM_SMC911X_CS; | |
78 | ||
79 | l3ck = clk_get(NULL, "l3_ck"); | |
80 | if (IS_ERR(l3ck)) | |
81 | rate = 100000000; | |
82 | else | |
83 | rate = clk_get_rate(l3ck); | |
84 | ||
85 | if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) { | |
86 | printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n", | |
87 | OMAP3EVM_ETHR_GPIO_IRQ); | |
88 | return; | |
89 | } | |
90 | ||
91 | gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ); | |
92 | } | |
93 | ||
94 | static struct omap_uart_config omap3_evm_uart_config __initdata = { | |
95 | .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), | |
96 | }; | |
97 | ||
98 | static struct twl4030_hsmmc_info mmc[] = { | |
99 | { | |
100 | .mmc = 1, | |
101 | .wires = 4, | |
102 | .gpio_cd = -EINVAL, | |
103 | .gpio_wp = 63, | |
104 | }, | |
105 | {} /* Terminator */ | |
106 | }; | |
107 | ||
108 | static struct gpio_led gpio_leds[] = { | |
109 | { | |
110 | .name = "omap3evm::ledb", | |
111 | /* normally not visible (board underside) */ | |
112 | .default_trigger = "default-on", | |
113 | .gpio = -EINVAL, /* gets replaced */ | |
114 | .active_low = true, | |
115 | }, | |
116 | }; | |
117 | ||
118 | static struct gpio_led_platform_data gpio_led_info = { | |
119 | .leds = gpio_leds, | |
120 | .num_leds = ARRAY_SIZE(gpio_leds), | |
121 | }; | |
122 | ||
123 | static struct platform_device leds_gpio = { | |
124 | .name = "leds-gpio", | |
125 | .id = -1, | |
126 | .dev = { | |
127 | .platform_data = &gpio_led_info, | |
128 | }, | |
129 | }; | |
130 | ||
131 | ||
132 | static int omap3evm_twl_gpio_setup(struct device *dev, | |
133 | unsigned gpio, unsigned ngpio) | |
134 | { | |
135 | /* gpio + 0 is "mmc0_cd" (input/IRQ) */ | |
136 | omap_cfg_reg(L8_34XX_GPIO63); | |
137 | mmc[0].gpio_cd = gpio + 0; | |
138 | twl4030_mmc_init(mmc); | |
139 | ||
140 | /* | |
141 | * Most GPIOs are for USB OTG. Some are mostly sent to | |
142 | * the P2 connector; notably LEDA for the LCD backlight. | |
143 | */ | |
144 | ||
145 | /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */ | |
146 | gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; | |
147 | ||
148 | platform_device_register(&leds_gpio); | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | static struct twl4030_gpio_platform_data omap3evm_gpio_data = { | |
154 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
155 | .irq_base = TWL4030_GPIO_IRQ_BASE, | |
156 | .irq_end = TWL4030_GPIO_IRQ_END, | |
157 | .use_leds = true, | |
158 | .setup = omap3evm_twl_gpio_setup, | |
159 | }; | |
160 | ||
161 | static struct twl4030_usb_data omap3evm_usb_data = { | |
162 | .usb_mode = T2_USB_MODE_ULPI, | |
163 | }; | |
164 | ||
165 | static int omap3evm_keymap[] = { | |
166 | KEY(0, 0, KEY_LEFT), | |
167 | KEY(0, 1, KEY_RIGHT), | |
168 | KEY(0, 2, KEY_A), | |
169 | KEY(0, 3, KEY_B), | |
170 | KEY(1, 0, KEY_DOWN), | |
171 | KEY(1, 1, KEY_UP), | |
172 | KEY(1, 2, KEY_E), | |
173 | KEY(1, 3, KEY_F), | |
174 | KEY(2, 0, KEY_ENTER), | |
175 | KEY(2, 1, KEY_I), | |
176 | KEY(2, 2, KEY_J), | |
177 | KEY(2, 3, KEY_K), | |
178 | KEY(3, 0, KEY_M), | |
179 | KEY(3, 1, KEY_N), | |
180 | KEY(3, 2, KEY_O), | |
181 | KEY(3, 3, KEY_P) | |
182 | }; | |
183 | ||
184 | static struct twl4030_keypad_data omap3evm_kp_data = { | |
185 | .rows = 4, | |
186 | .cols = 4, | |
187 | .keymap = omap3evm_keymap, | |
188 | .keymapsize = ARRAY_SIZE(omap3evm_keymap), | |
189 | .rep = 1, | |
190 | }; | |
191 | ||
192 | static struct twl4030_madc_platform_data omap3evm_madc_data = { | |
193 | .irq_line = 1, | |
194 | }; | |
195 | ||
196 | static struct twl4030_platform_data omap3evm_twldata = { | |
197 | .irq_base = TWL4030_IRQ_BASE, | |
198 | .irq_end = TWL4030_IRQ_END, | |
199 | ||
200 | /* platform_data for children goes here */ | |
201 | .keypad = &omap3evm_kp_data, | |
202 | .madc = &omap3evm_madc_data, | |
203 | .usb = &omap3evm_usb_data, | |
204 | .gpio = &omap3evm_gpio_data, | |
205 | }; | |
206 | ||
207 | static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = { | |
208 | { | |
209 | I2C_BOARD_INFO("twl4030", 0x48), | |
210 | .flags = I2C_CLIENT_WAKE, | |
211 | .irq = INT_34XX_SYS_NIRQ, | |
212 | .platform_data = &omap3evm_twldata, | |
213 | }, | |
214 | }; | |
215 | ||
216 | static int __init omap3_evm_i2c_init(void) | |
217 | { | |
218 | omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo, | |
219 | ARRAY_SIZE(omap3evm_i2c_boardinfo)); | |
220 | omap_register_i2c_bus(2, 400, NULL, 0); | |
221 | omap_register_i2c_bus(3, 400, NULL, 0); | |
222 | return 0; | |
223 | } | |
224 | ||
225 | static struct platform_device omap3_evm_lcd_device = { | |
226 | .name = "omap3evm_lcd", | |
227 | .id = -1, | |
228 | }; | |
229 | ||
230 | static struct omap_lcd_config omap3_evm_lcd_config __initdata = { | |
231 | .ctrl_name = "internal", | |
232 | }; | |
233 | ||
234 | static void ads7846_dev_init(void) | |
235 | { | |
236 | if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0) | |
237 | printk(KERN_ERR "can't get ads7846 pen down GPIO\n"); | |
238 | ||
239 | gpio_direction_input(OMAP3_EVM_TS_GPIO); | |
240 | ||
241 | omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1); | |
242 | omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa); | |
243 | } | |
244 | ||
245 | static int ads7846_get_pendown_state(void) | |
246 | { | |
247 | return !gpio_get_value(OMAP3_EVM_TS_GPIO); | |
248 | } | |
249 | ||
250 | struct ads7846_platform_data ads7846_config = { | |
251 | .x_max = 0x0fff, | |
252 | .y_max = 0x0fff, | |
253 | .x_plate_ohms = 180, | |
254 | .pressure_max = 255, | |
255 | .debounce_max = 10, | |
256 | .debounce_tol = 3, | |
257 | .debounce_rep = 1, | |
258 | .get_pendown_state = ads7846_get_pendown_state, | |
259 | .keep_vref_on = 1, | |
260 | .settle_delay_usecs = 150, | |
261 | }; | |
262 | ||
263 | static struct omap2_mcspi_device_config ads7846_mcspi_config = { | |
264 | .turbo_mode = 0, | |
265 | .single_channel = 1, /* 0: slave, 1: master */ | |
266 | }; | |
267 | ||
268 | struct spi_board_info omap3evm_spi_board_info[] = { | |
269 | [0] = { | |
270 | .modalias = "ads7846", | |
271 | .bus_num = 1, | |
272 | .chip_select = 0, | |
273 | .max_speed_hz = 1500000, | |
274 | .controller_data = &ads7846_mcspi_config, | |
275 | .irq = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO), | |
276 | .platform_data = &ads7846_config, | |
277 | }, | |
278 | }; | |
279 | ||
280 | static void __init omap3_evm_init_irq(void) | |
281 | { | |
282 | omap2_init_common_hw(mt46h32m32lf6_sdrc_params); | |
283 | omap_init_irq(); | |
284 | omap_gpio_init(); | |
285 | omap3evm_init_smc911x(); | |
286 | } | |
287 | ||
288 | static struct omap_board_config_kernel omap3_evm_config[] __initdata = { | |
289 | { OMAP_TAG_UART, &omap3_evm_uart_config }, | |
290 | { OMAP_TAG_LCD, &omap3_evm_lcd_config }, | |
291 | }; | |
292 | ||
293 | static struct platform_device *omap3_evm_devices[] __initdata = { | |
294 | &omap3_evm_lcd_device, | |
295 | &omap3evm_smc911x_device, | |
296 | }; | |
297 | ||
298 | static void __init omap3_evm_init(void) | |
299 | { | |
300 | omap3_evm_i2c_init(); | |
301 | ||
302 | platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices)); | |
303 | omap_board_config = omap3_evm_config; | |
304 | omap_board_config_size = ARRAY_SIZE(omap3_evm_config); | |
305 | ||
306 | spi_register_board_info(omap3evm_spi_board_info, | |
307 | ARRAY_SIZE(omap3evm_spi_board_info)); | |
308 | ||
309 | omap_serial_init(); | |
310 | usb_musb_init(); | |
311 | ads7846_dev_init(); | |
312 | } | |
313 | ||
314 | static void __init omap3_evm_map_io(void) | |
315 | { | |
316 | omap2_set_globals_343x(); | |
317 | omap2_map_common_io(); | |
318 | } | |
319 | ||
320 | MACHINE_START(OMAP3EVM, "OMAP3 EVM") | |
321 | /* Maintainer: Syed Mohammed Khasim - Texas Instruments */ | |
322 | .phys_io = 0x48000000, | |
323 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
324 | .boot_params = 0x80000100, | |
325 | .map_io = omap3_evm_map_io, | |
326 | .init_irq = omap3_evm_init_irq, | |
327 | .init_machine = omap3_evm_init, | |
328 | .timer = &omap_timer, | |
329 | MACHINE_END |