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49265651 NK |
1 | /* |
2 | * linux/arch/arm/mach-omap2/board-ldp.c | |
3 | * | |
4 | * Copyright (C) 2008 Texas Instruments Inc. | |
5 | * Nishant Kamat <nskamat@ti.com> | |
6 | * | |
7 | * Modified from mach-omap2/board-3430sdp.c | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/kernel.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/input.h> | |
4a899d5e | 19 | #include <linux/gpio_keys.h> |
49265651 NK |
20 | #include <linux/workqueue.h> |
21 | #include <linux/err.h> | |
22 | #include <linux/clk.h> | |
23 | #include <linux/spi/spi.h> | |
24 | #include <linux/spi/ads7846.h> | |
4a899d5e | 25 | #include <linux/regulator/machine.h> |
90c62bf0 | 26 | #include <linux/i2c/twl4030.h> |
99730225 | 27 | #include <linux/io.h> |
1c0e147e | 28 | #include <linux/smsc911x.h> |
49265651 NK |
29 | |
30 | #include <mach/hardware.h> | |
31 | #include <asm/mach-types.h> | |
32 | #include <asm/mach/arch.h> | |
33 | #include <asm/mach/map.h> | |
34 | ||
49265651 NK |
35 | #include <mach/mcspi.h> |
36 | #include <mach/gpio.h> | |
37 | #include <mach/board.h> | |
38 | #include <mach/common.h> | |
39 | #include <mach/gpmc.h> | |
40 | ||
49265651 NK |
41 | #include <asm/delay.h> |
42 | #include <mach/control.h> | |
18cb7aca | 43 | #include <mach/usb.h> |
4a899d5e | 44 | #include <mach/keypad.h> |
49265651 | 45 | |
90c62bf0 TL |
46 | #include "mmc-twl4030.h" |
47 | ||
1c0e147e SG |
48 | #define LDP_SMSC911X_CS 1 |
49 | #define LDP_SMSC911X_GPIO 152 | |
ec7558a6 TL |
50 | #define DEBUG_BASE 0x08000000 |
51 | #define LDP_ETHR_START DEBUG_BASE | |
b1c056d2 | 52 | |
1c0e147e | 53 | static struct resource ldp_smsc911x_resources[] = { |
b1c056d2 | 54 | [0] = { |
ec7558a6 TL |
55 | .start = LDP_ETHR_START, |
56 | .end = LDP_ETHR_START + SZ_4K, | |
b1c056d2 SM |
57 | .flags = IORESOURCE_MEM, |
58 | }, | |
59 | [1] = { | |
60 | .start = 0, | |
61 | .end = 0, | |
62 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, | |
63 | }, | |
64 | }; | |
65 | ||
1c0e147e SG |
66 | static struct smsc911x_platform_config ldp_smsc911x_config = { |
67 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, | |
68 | .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, | |
69 | .flags = SMSC911X_USE_32BIT, | |
70 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
71 | }; | |
72 | ||
73 | static struct platform_device ldp_smsc911x_device = { | |
74 | .name = "smsc911x", | |
b1c056d2 | 75 | .id = -1, |
1c0e147e SG |
76 | .num_resources = ARRAY_SIZE(ldp_smsc911x_resources), |
77 | .resource = ldp_smsc911x_resources, | |
78 | .dev = { | |
79 | .platform_data = &ldp_smsc911x_config, | |
80 | }, | |
b1c056d2 SM |
81 | }; |
82 | ||
4a899d5e TL |
83 | static int ldp_twl4030_keymap[] = { |
84 | KEY(0, 0, KEY_1), | |
85 | KEY(1, 0, KEY_2), | |
86 | KEY(2, 0, KEY_3), | |
87 | KEY(0, 1, KEY_4), | |
88 | KEY(1, 1, KEY_5), | |
89 | KEY(2, 1, KEY_6), | |
90 | KEY(3, 1, KEY_F5), | |
91 | KEY(0, 2, KEY_7), | |
92 | KEY(1, 2, KEY_8), | |
93 | KEY(2, 2, KEY_9), | |
94 | KEY(3, 2, KEY_F6), | |
95 | KEY(0, 3, KEY_F7), | |
96 | KEY(1, 3, KEY_0), | |
97 | KEY(2, 3, KEY_F8), | |
98 | PERSISTENT_KEY(4, 5), | |
99 | KEY(4, 4, KEY_VOLUMEUP), | |
100 | KEY(5, 5, KEY_VOLUMEDOWN), | |
101 | 0 | |
102 | }; | |
103 | ||
104 | static struct twl4030_keypad_data ldp_kp_twl4030_data = { | |
105 | .rows = 6, | |
106 | .cols = 6, | |
107 | .keymap = ldp_twl4030_keymap, | |
108 | .keymapsize = ARRAY_SIZE(ldp_twl4030_keymap), | |
109 | .rep = 1, | |
110 | }; | |
111 | ||
112 | static struct gpio_keys_button ldp_gpio_keys_buttons[] = { | |
113 | [0] = { | |
114 | .code = KEY_ENTER, | |
115 | .gpio = 101, | |
116 | .desc = "enter sw", | |
117 | .active_low = 1, | |
118 | .debounce_interval = 30, | |
119 | }, | |
120 | [1] = { | |
121 | .code = KEY_F1, | |
122 | .gpio = 102, | |
123 | .desc = "func 1", | |
124 | .active_low = 1, | |
125 | .debounce_interval = 30, | |
126 | }, | |
127 | [2] = { | |
128 | .code = KEY_F2, | |
129 | .gpio = 103, | |
130 | .desc = "func 2", | |
131 | .active_low = 1, | |
132 | .debounce_interval = 30, | |
133 | }, | |
134 | [3] = { | |
135 | .code = KEY_F3, | |
136 | .gpio = 104, | |
137 | .desc = "func 3", | |
138 | .active_low = 1, | |
139 | .debounce_interval = 30, | |
140 | }, | |
141 | [4] = { | |
142 | .code = KEY_F4, | |
143 | .gpio = 105, | |
144 | .desc = "func 4", | |
145 | .active_low = 1, | |
146 | .debounce_interval = 30, | |
147 | }, | |
148 | [5] = { | |
149 | .code = KEY_LEFT, | |
150 | .gpio = 106, | |
151 | .desc = "left sw", | |
152 | .active_low = 1, | |
153 | .debounce_interval = 30, | |
154 | }, | |
155 | [6] = { | |
156 | .code = KEY_RIGHT, | |
157 | .gpio = 107, | |
158 | .desc = "right sw", | |
159 | .active_low = 1, | |
160 | .debounce_interval = 30, | |
161 | }, | |
162 | [7] = { | |
163 | .code = KEY_UP, | |
164 | .gpio = 108, | |
165 | .desc = "up sw", | |
166 | .active_low = 1, | |
167 | .debounce_interval = 30, | |
168 | }, | |
169 | [8] = { | |
170 | .code = KEY_DOWN, | |
171 | .gpio = 109, | |
172 | .desc = "down sw", | |
173 | .active_low = 1, | |
174 | .debounce_interval = 30, | |
175 | }, | |
176 | }; | |
177 | ||
178 | static struct gpio_keys_platform_data ldp_gpio_keys = { | |
179 | .buttons = ldp_gpio_keys_buttons, | |
180 | .nbuttons = ARRAY_SIZE(ldp_gpio_keys_buttons), | |
181 | .rep = 1, | |
182 | }; | |
183 | ||
184 | static struct platform_device ldp_gpio_keys_device = { | |
185 | .name = "gpio-keys", | |
186 | .id = -1, | |
187 | .dev = { | |
188 | .platform_data = &ldp_gpio_keys, | |
189 | }, | |
190 | }; | |
191 | ||
192 | static int ts_gpio; | |
193 | ||
194 | /** | |
195 | * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq | |
196 | * | |
197 | * @return - void. If request gpio fails then Flag KERN_ERR. | |
198 | */ | |
199 | static void ads7846_dev_init(void) | |
200 | { | |
201 | if (gpio_request(ts_gpio, "ads7846 irq") < 0) { | |
202 | printk(KERN_ERR "can't get ads746 pen down GPIO\n"); | |
203 | return; | |
204 | } | |
205 | ||
206 | gpio_direction_input(ts_gpio); | |
207 | omap_set_gpio_debounce(ts_gpio, 1); | |
208 | omap_set_gpio_debounce_time(ts_gpio, 0xa); | |
209 | } | |
210 | ||
211 | static int ads7846_get_pendown_state(void) | |
212 | { | |
213 | return !gpio_get_value(ts_gpio); | |
214 | } | |
215 | ||
216 | static struct ads7846_platform_data tsc2046_config __initdata = { | |
217 | .get_pendown_state = ads7846_get_pendown_state, | |
218 | .keep_vref_on = 1, | |
219 | }; | |
220 | ||
221 | static struct omap2_mcspi_device_config tsc2046_mcspi_config = { | |
222 | .turbo_mode = 0, | |
223 | .single_channel = 1, /* 0: slave, 1: master */ | |
224 | }; | |
225 | ||
226 | static struct spi_board_info ldp_spi_board_info[] __initdata = { | |
227 | [0] = { | |
228 | /* | |
229 | * TSC2046 operates at a max freqency of 2MHz, so | |
230 | * operate slightly below at 1.5MHz | |
231 | */ | |
232 | .modalias = "ads7846", | |
233 | .bus_num = 1, | |
234 | .chip_select = 0, | |
235 | .max_speed_hz = 1500000, | |
236 | .controller_data = &tsc2046_mcspi_config, | |
237 | .irq = 0, | |
238 | .platform_data = &tsc2046_config, | |
239 | }, | |
240 | }; | |
241 | ||
1c0e147e | 242 | static inline void __init ldp_init_smsc911x(void) |
b1c056d2 SM |
243 | { |
244 | int eth_cs; | |
245 | unsigned long cs_mem_base; | |
246 | int eth_gpio = 0; | |
247 | ||
1c0e147e | 248 | eth_cs = LDP_SMSC911X_CS; |
b1c056d2 SM |
249 | |
250 | if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { | |
1c0e147e | 251 | printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n"); |
b1c056d2 SM |
252 | return; |
253 | } | |
254 | ||
1c0e147e SG |
255 | ldp_smsc911x_resources[0].start = cs_mem_base + 0x0; |
256 | ldp_smsc911x_resources[0].end = cs_mem_base + 0xff; | |
b1c056d2 SM |
257 | udelay(100); |
258 | ||
1c0e147e | 259 | eth_gpio = LDP_SMSC911X_GPIO; |
b1c056d2 | 260 | |
1c0e147e | 261 | ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio); |
b1c056d2 | 262 | |
1c0e147e SG |
263 | if (gpio_request(eth_gpio, "smsc911x irq") < 0) { |
264 | printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n", | |
b1c056d2 SM |
265 | eth_gpio); |
266 | return; | |
267 | } | |
268 | gpio_direction_input(eth_gpio); | |
269 | } | |
270 | ||
49265651 NK |
271 | static void __init omap_ldp_init_irq(void) |
272 | { | |
87246b75 | 273 | omap2_init_common_hw(NULL); |
49265651 NK |
274 | omap_init_irq(); |
275 | omap_gpio_init(); | |
1c0e147e | 276 | ldp_init_smsc911x(); |
49265651 NK |
277 | } |
278 | ||
279 | static struct omap_uart_config ldp_uart_config __initdata = { | |
280 | .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), | |
281 | }; | |
282 | ||
49adf465 ID |
283 | static struct platform_device ldp_lcd_device = { |
284 | .name = "ldp_lcd", | |
285 | .id = -1, | |
286 | }; | |
287 | ||
288 | static struct omap_lcd_config ldp_lcd_config __initdata = { | |
289 | .ctrl_name = "internal", | |
290 | }; | |
291 | ||
49265651 NK |
292 | static struct omap_board_config_kernel ldp_config[] __initdata = { |
293 | { OMAP_TAG_UART, &ldp_uart_config }, | |
49adf465 | 294 | { OMAP_TAG_LCD, &ldp_lcd_config }, |
49265651 NK |
295 | }; |
296 | ||
4a899d5e TL |
297 | static struct twl4030_usb_data ldp_usb_data = { |
298 | .usb_mode = T2_USB_MODE_ULPI, | |
299 | }; | |
300 | ||
90c62bf0 TL |
301 | static struct twl4030_gpio_platform_data ldp_gpio_data = { |
302 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
303 | .irq_base = TWL4030_GPIO_IRQ_BASE, | |
304 | .irq_end = TWL4030_GPIO_IRQ_END, | |
305 | }; | |
306 | ||
4a899d5e TL |
307 | static struct twl4030_madc_platform_data ldp_madc_data = { |
308 | .irq_line = 1, | |
309 | }; | |
310 | ||
311 | static struct regulator_consumer_supply ldp_vmmc1_supply = { | |
312 | .supply = "vmmc", | |
313 | }; | |
314 | ||
315 | /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ | |
316 | static struct regulator_init_data ldp_vmmc1 = { | |
317 | .constraints = { | |
318 | .min_uV = 1850000, | |
319 | .max_uV = 3150000, | |
320 | .valid_modes_mask = REGULATOR_MODE_NORMAL | |
321 | | REGULATOR_MODE_STANDBY, | |
322 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | |
323 | | REGULATOR_CHANGE_MODE | |
324 | | REGULATOR_CHANGE_STATUS, | |
325 | }, | |
326 | .num_consumer_supplies = 1, | |
327 | .consumer_supplies = &ldp_vmmc1_supply, | |
328 | }; | |
329 | ||
90c62bf0 TL |
330 | static struct twl4030_platform_data ldp_twldata = { |
331 | .irq_base = TWL4030_IRQ_BASE, | |
332 | .irq_end = TWL4030_IRQ_END, | |
333 | ||
334 | /* platform_data for children goes here */ | |
4a899d5e TL |
335 | .madc = &ldp_madc_data, |
336 | .usb = &ldp_usb_data, | |
337 | .vmmc1 = &ldp_vmmc1, | |
90c62bf0 | 338 | .gpio = &ldp_gpio_data, |
4a899d5e | 339 | .keypad = &ldp_kp_twl4030_data, |
90c62bf0 TL |
340 | }; |
341 | ||
342 | static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = { | |
343 | { | |
344 | I2C_BOARD_INFO("twl4030", 0x48), | |
345 | .flags = I2C_CLIENT_WAKE, | |
346 | .irq = INT_34XX_SYS_NIRQ, | |
347 | .platform_data = &ldp_twldata, | |
348 | }, | |
349 | }; | |
350 | ||
49265651 NK |
351 | static int __init omap_i2c_init(void) |
352 | { | |
90c62bf0 TL |
353 | omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo, |
354 | ARRAY_SIZE(ldp_i2c_boardinfo)); | |
49265651 NK |
355 | omap_register_i2c_bus(2, 400, NULL, 0); |
356 | omap_register_i2c_bus(3, 400, NULL, 0); | |
357 | return 0; | |
358 | } | |
359 | ||
90c62bf0 TL |
360 | static struct twl4030_hsmmc_info mmc[] __initdata = { |
361 | { | |
362 | .mmc = 1, | |
363 | .wires = 4, | |
364 | .gpio_cd = -EINVAL, | |
365 | .gpio_wp = -EINVAL, | |
366 | }, | |
367 | {} /* Terminator */ | |
368 | }; | |
369 | ||
49adf465 ID |
370 | static struct platform_device *ldp_devices[] __initdata = { |
371 | &ldp_smsc911x_device, | |
372 | &ldp_lcd_device, | |
4a899d5e | 373 | &ldp_gpio_keys_device, |
49adf465 ID |
374 | }; |
375 | ||
49265651 NK |
376 | static void __init omap_ldp_init(void) |
377 | { | |
378 | omap_i2c_init(); | |
b1c056d2 | 379 | platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices)); |
49265651 NK |
380 | omap_board_config = ldp_config; |
381 | omap_board_config_size = ARRAY_SIZE(ldp_config); | |
4a899d5e TL |
382 | ts_gpio = 54; |
383 | ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio); | |
384 | spi_register_board_info(ldp_spi_board_info, | |
385 | ARRAY_SIZE(ldp_spi_board_info)); | |
386 | ads7846_dev_init(); | |
49265651 | 387 | omap_serial_init(); |
18cb7aca | 388 | usb_musb_init(); |
4a899d5e TL |
389 | |
390 | twl4030_mmc_init(mmc); | |
391 | /* link regulators to MMC adapters */ | |
392 | ldp_vmmc1_supply.dev = mmc[0].dev; | |
49265651 NK |
393 | } |
394 | ||
395 | static void __init omap_ldp_map_io(void) | |
396 | { | |
397 | omap2_set_globals_343x(); | |
398 | omap2_map_common_io(); | |
399 | } | |
400 | ||
401 | MACHINE_START(OMAP_LDP, "OMAP LDP board") | |
402 | .phys_io = 0x48000000, | |
403 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
404 | .boot_params = 0x80000100, | |
405 | .map_io = omap_ldp_map_io, | |
406 | .init_irq = omap_ldp_init_irq, | |
407 | .init_machine = omap_ldp_init, | |
408 | .timer = &omap_timer, | |
409 | MACHINE_END |