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7a079cab GG |
1 | /* |
2 | * linux/arch/arm/mach-omap2/board-omap3touchbook.c | |
3 | * | |
4 | * Copyright (C) 2009 Always Innovating | |
5 | * | |
6 | * Modified from mach-omap2/board-omap3beagleboard.c | |
7 | * | |
8 | * Initial code: Grégoire Gentil, Tim Yamin | |
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/io.h> | |
22 | #include <linux/leds.h> | |
23 | #include <linux/gpio.h> | |
24 | #include <linux/input.h> | |
25 | #include <linux/gpio_keys.h> | |
26 | ||
27 | #include <linux/mtd/mtd.h> | |
28 | #include <linux/mtd/partitions.h> | |
29 | #include <linux/mtd/nand.h> | |
3a63833e | 30 | #include <linux/mmc/host.h> |
7a079cab GG |
31 | |
32 | #include <plat/mcspi.h> | |
33 | #include <linux/spi/spi.h> | |
34 | ||
35 | #include <linux/spi/ads7846.h> | |
36 | ||
37 | #include <linux/regulator/machine.h> | |
ebeb53e1 | 38 | #include <linux/i2c/twl.h> |
7a079cab GG |
39 | |
40 | #include <mach/hardware.h> | |
41 | #include <asm/mach-types.h> | |
42 | #include <asm/mach/arch.h> | |
43 | #include <asm/mach/map.h> | |
44 | #include <asm/mach/flash.h> | |
45 | ||
46 | #include <plat/board.h> | |
47 | #include <plat/common.h> | |
48 | #include <plat/gpmc.h> | |
49 | #include <plat/nand.h> | |
50 | #include <plat/usb.h> | |
7a079cab GG |
51 | |
52 | #include "mux.h" | |
d02a900b | 53 | #include "hsmmc.h" |
04aeae77 | 54 | #include "timer-gp.h" |
96974a24 | 55 | #include "common-board-devices.h" |
7a079cab GG |
56 | |
57 | #include <asm/setup.h> | |
58 | ||
7a079cab GG |
59 | #define OMAP3_AC_GPIO 136 |
60 | #define OMAP3_TS_GPIO 162 | |
61 | #define TB_BL_PWM_TIMER 9 | |
62 | #define TB_KILL_POWER_GPIO 168 | |
63 | ||
38815733 | 64 | static unsigned long touchbook_revision; |
7a079cab GG |
65 | |
66 | static struct mtd_partition omap3touchbook_nand_partitions[] = { | |
67 | /* All the partition sizes are listed in terms of NAND block size */ | |
68 | { | |
69 | .name = "X-Loader", | |
70 | .offset = 0, | |
71 | .size = 4 * NAND_BLOCK_SIZE, | |
72 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
73 | }, | |
74 | { | |
75 | .name = "U-Boot", | |
76 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ | |
77 | .size = 15 * NAND_BLOCK_SIZE, | |
78 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
79 | }, | |
80 | { | |
81 | .name = "U-Boot Env", | |
82 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */ | |
83 | .size = 1 * NAND_BLOCK_SIZE, | |
84 | }, | |
85 | { | |
86 | .name = "Kernel", | |
87 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ | |
88 | .size = 32 * NAND_BLOCK_SIZE, | |
89 | }, | |
90 | { | |
91 | .name = "File System", | |
92 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ | |
93 | .size = MTDPART_SIZ_FULL, | |
94 | }, | |
95 | }; | |
96 | ||
7a079cab GG |
97 | #include "sdram-micron-mt46h32m32lf-6.h" |
98 | ||
68ff0423 | 99 | static struct omap2_hsmmc_info mmc[] = { |
7a079cab GG |
100 | { |
101 | .mmc = 1, | |
3a63833e | 102 | .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, |
7a079cab GG |
103 | .gpio_wp = 29, |
104 | }, | |
105 | {} /* Terminator */ | |
106 | }; | |
107 | ||
108 | static struct platform_device omap3_touchbook_lcd_device = { | |
109 | .name = "omap3touchbook_lcd", | |
110 | .id = -1, | |
111 | }; | |
112 | ||
113 | static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = { | |
114 | .ctrl_name = "internal", | |
115 | }; | |
116 | ||
117 | static struct regulator_consumer_supply touchbook_vmmc1_supply = { | |
118 | .supply = "vmmc", | |
119 | }; | |
120 | ||
121 | static struct regulator_consumer_supply touchbook_vsim_supply = { | |
122 | .supply = "vmmc_aux", | |
123 | }; | |
124 | ||
125 | static struct gpio_led gpio_leds[]; | |
126 | ||
127 | static int touchbook_twl_gpio_setup(struct device *dev, | |
128 | unsigned gpio, unsigned ngpio) | |
129 | { | |
130 | if (system_rev >= 0x20 && system_rev <= 0x34301000) { | |
131 | omap_mux_init_gpio(23, OMAP_PIN_INPUT); | |
132 | mmc[0].gpio_wp = 23; | |
133 | } else { | |
134 | omap_mux_init_gpio(29, OMAP_PIN_INPUT); | |
135 | } | |
136 | /* gpio + 0 is "mmc0_cd" (input/IRQ) */ | |
137 | mmc[0].gpio_cd = gpio + 0; | |
68ff0423 | 138 | omap2_hsmmc_init(mmc); |
7a079cab GG |
139 | |
140 | /* link regulators to MMC adapters */ | |
141 | touchbook_vmmc1_supply.dev = mmc[0].dev; | |
142 | touchbook_vsim_supply.dev = mmc[0].dev; | |
143 | ||
144 | /* REVISIT: need ehci-omap hooks for external VBUS | |
145 | * power switch and overcurrent detect | |
146 | */ | |
bc593f5d | 147 | gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"); |
7a079cab GG |
148 | |
149 | /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */ | |
bc593f5d IG |
150 | gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW, |
151 | "nEN_USB_PWR"); | |
7a079cab GG |
152 | |
153 | /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ | |
154 | gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
159 | static struct twl4030_gpio_platform_data touchbook_gpio_data = { | |
160 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
161 | .irq_base = TWL4030_GPIO_IRQ_BASE, | |
162 | .irq_end = TWL4030_GPIO_IRQ_END, | |
163 | .use_leds = true, | |
164 | .pullups = BIT(1), | |
165 | .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13) | |
166 | | BIT(15) | BIT(16) | BIT(17), | |
167 | .setup = touchbook_twl_gpio_setup, | |
168 | }; | |
169 | ||
170 | static struct regulator_consumer_supply touchbook_vdac_supply = { | |
171 | .supply = "vdac", | |
172 | .dev = &omap3_touchbook_lcd_device.dev, | |
173 | }; | |
174 | ||
175 | static struct regulator_consumer_supply touchbook_vdvi_supply = { | |
176 | .supply = "vdvi", | |
177 | .dev = &omap3_touchbook_lcd_device.dev, | |
178 | }; | |
179 | ||
180 | /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ | |
181 | static struct regulator_init_data touchbook_vmmc1 = { | |
182 | .constraints = { | |
183 | .min_uV = 1850000, | |
184 | .max_uV = 3150000, | |
185 | .valid_modes_mask = REGULATOR_MODE_NORMAL | |
186 | | REGULATOR_MODE_STANDBY, | |
187 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | |
188 | | REGULATOR_CHANGE_MODE | |
189 | | REGULATOR_CHANGE_STATUS, | |
190 | }, | |
191 | .num_consumer_supplies = 1, | |
192 | .consumer_supplies = &touchbook_vmmc1_supply, | |
193 | }; | |
194 | ||
195 | /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */ | |
196 | static struct regulator_init_data touchbook_vsim = { | |
197 | .constraints = { | |
198 | .min_uV = 1800000, | |
199 | .max_uV = 3000000, | |
200 | .valid_modes_mask = REGULATOR_MODE_NORMAL | |
201 | | REGULATOR_MODE_STANDBY, | |
202 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | |
203 | | REGULATOR_CHANGE_MODE | |
204 | | REGULATOR_CHANGE_STATUS, | |
205 | }, | |
206 | .num_consumer_supplies = 1, | |
207 | .consumer_supplies = &touchbook_vsim_supply, | |
208 | }; | |
209 | ||
210 | /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */ | |
211 | static struct regulator_init_data touchbook_vdac = { | |
212 | .constraints = { | |
213 | .min_uV = 1800000, | |
214 | .max_uV = 1800000, | |
215 | .valid_modes_mask = REGULATOR_MODE_NORMAL | |
216 | | REGULATOR_MODE_STANDBY, | |
217 | .valid_ops_mask = REGULATOR_CHANGE_MODE | |
218 | | REGULATOR_CHANGE_STATUS, | |
219 | }, | |
220 | .num_consumer_supplies = 1, | |
221 | .consumer_supplies = &touchbook_vdac_supply, | |
222 | }; | |
223 | ||
224 | /* VPLL2 for digital video outputs */ | |
225 | static struct regulator_init_data touchbook_vpll2 = { | |
226 | .constraints = { | |
227 | .name = "VDVI", | |
228 | .min_uV = 1800000, | |
229 | .max_uV = 1800000, | |
230 | .valid_modes_mask = REGULATOR_MODE_NORMAL | |
231 | | REGULATOR_MODE_STANDBY, | |
232 | .valid_ops_mask = REGULATOR_CHANGE_MODE | |
233 | | REGULATOR_CHANGE_STATUS, | |
234 | }, | |
235 | .num_consumer_supplies = 1, | |
236 | .consumer_supplies = &touchbook_vdvi_supply, | |
237 | }; | |
238 | ||
239 | static struct twl4030_usb_data touchbook_usb_data = { | |
240 | .usb_mode = T2_USB_MODE_ULPI, | |
241 | }; | |
242 | ||
6a58baf8 | 243 | static struct twl4030_codec_audio_data touchbook_audio_data; |
7a079cab GG |
244 | |
245 | static struct twl4030_codec_data touchbook_codec_data = { | |
246 | .audio_mclk = 26000000, | |
247 | .audio = &touchbook_audio_data, | |
248 | }; | |
249 | ||
250 | static struct twl4030_platform_data touchbook_twldata = { | |
251 | .irq_base = TWL4030_IRQ_BASE, | |
252 | .irq_end = TWL4030_IRQ_END, | |
253 | ||
254 | /* platform_data for children goes here */ | |
255 | .usb = &touchbook_usb_data, | |
256 | .gpio = &touchbook_gpio_data, | |
257 | .codec = &touchbook_codec_data, | |
258 | .vmmc1 = &touchbook_vmmc1, | |
259 | .vsim = &touchbook_vsim, | |
260 | .vdac = &touchbook_vdac, | |
261 | .vpll2 = &touchbook_vpll2, | |
262 | }; | |
263 | ||
7a079cab GG |
264 | static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = { |
265 | { | |
266 | I2C_BOARD_INFO("bq27200", 0x55), | |
267 | }, | |
268 | }; | |
269 | ||
270 | static int __init omap3_touchbook_i2c_init(void) | |
271 | { | |
272 | /* Standard TouchBook bus */ | |
fbd8071c | 273 | omap3_pmic_init("twl4030", &touchbook_twldata); |
7a079cab GG |
274 | |
275 | /* Additional TouchBook bus */ | |
276 | omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo, | |
277 | ARRAY_SIZE(touchBook_i2c_boardinfo)); | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
96974a24 | 282 | static struct ads7846_platform_data ads7846_pdata = { |
7a079cab GG |
283 | .x_min = 100, |
284 | .y_min = 265, | |
285 | .x_max = 3950, | |
286 | .y_max = 3750, | |
287 | .x_plate_ohms = 40, | |
288 | .pressure_max = 255, | |
289 | .debounce_max = 10, | |
290 | .debounce_tol = 5, | |
291 | .debounce_rep = 1, | |
292 | .gpio_pendown = OMAP3_TS_GPIO, | |
293 | .keep_vref_on = 1, | |
294 | }; | |
295 | ||
7a079cab GG |
296 | static struct gpio_led gpio_leds[] = { |
297 | { | |
298 | .name = "touchbook::usr0", | |
299 | .default_trigger = "heartbeat", | |
300 | .gpio = 150, | |
301 | }, | |
302 | { | |
303 | .name = "touchbook::usr1", | |
304 | .default_trigger = "mmc0", | |
305 | .gpio = 149, | |
306 | }, | |
307 | { | |
308 | .name = "touchbook::pmu_stat", | |
309 | .gpio = -EINVAL, /* gets replaced */ | |
310 | .active_low = true, | |
311 | }, | |
312 | }; | |
313 | ||
314 | static struct gpio_led_platform_data gpio_led_info = { | |
315 | .leds = gpio_leds, | |
316 | .num_leds = ARRAY_SIZE(gpio_leds), | |
317 | }; | |
318 | ||
319 | static struct platform_device leds_gpio = { | |
320 | .name = "leds-gpio", | |
321 | .id = -1, | |
322 | .dev = { | |
323 | .platform_data = &gpio_led_info, | |
324 | }, | |
325 | }; | |
326 | ||
327 | static struct gpio_keys_button gpio_buttons[] = { | |
328 | { | |
329 | .code = BTN_EXTRA, | |
330 | .gpio = 7, | |
331 | .desc = "user", | |
332 | .wakeup = 1, | |
333 | }, | |
334 | { | |
335 | .code = KEY_POWER, | |
336 | .gpio = 183, | |
337 | .desc = "power", | |
338 | .wakeup = 1, | |
339 | }, | |
340 | }; | |
341 | ||
342 | static struct gpio_keys_platform_data gpio_key_info = { | |
343 | .buttons = gpio_buttons, | |
344 | .nbuttons = ARRAY_SIZE(gpio_buttons), | |
345 | }; | |
346 | ||
347 | static struct platform_device keys_gpio = { | |
348 | .name = "gpio-keys", | |
349 | .id = -1, | |
350 | .dev = { | |
351 | .platform_data = &gpio_key_info, | |
352 | }, | |
353 | }; | |
354 | ||
355 | static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = { | |
356 | { OMAP_TAG_LCD, &omap3_touchbook_lcd_config }, | |
357 | }; | |
358 | ||
359 | #ifdef CONFIG_OMAP_MUX | |
360 | static struct omap_board_mux board_mux[] __initdata = { | |
361 | { .reg_offset = OMAP_MUX_TERMINATOR }, | |
362 | }; | |
7a079cab GG |
363 | #endif |
364 | ||
3dc3bad6 | 365 | static void __init omap3_touchbook_init_early(void) |
7a079cab | 366 | { |
4805734b PW |
367 | omap2_init_common_infrastructure(); |
368 | omap2_init_common_devices(mt46h32m32lf6_sdrc_params, | |
369 | mt46h32m32lf6_sdrc_params); | |
3dc3bad6 RKAL |
370 | } |
371 | ||
372 | static void __init omap3_touchbook_init_irq(void) | |
373 | { | |
7a079cab GG |
374 | omap_init_irq(); |
375 | #ifdef CONFIG_OMAP_32K_TIMER | |
376 | omap2_gp_clockevent_set_gptimer(12); | |
377 | #endif | |
7a079cab GG |
378 | } |
379 | ||
380 | static struct platform_device *omap3_touchbook_devices[] __initdata = { | |
381 | &omap3_touchbook_lcd_device, | |
382 | &leds_gpio, | |
383 | &keys_gpio, | |
384 | }; | |
385 | ||
181b250c | 386 | static const struct usbhs_omap_board_data usbhs_bdata __initconst = { |
7a079cab | 387 | |
181b250c KM |
388 | .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, |
389 | .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, | |
390 | .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, | |
7a079cab GG |
391 | |
392 | .phy_reset = true, | |
393 | .reset_gpio_port[0] = -EINVAL, | |
394 | .reset_gpio_port[1] = 147, | |
395 | .reset_gpio_port[2] = -EINVAL | |
396 | }; | |
397 | ||
398 | static void omap3_touchbook_poweroff(void) | |
399 | { | |
bc593f5d | 400 | int pwr_off = TB_KILL_POWER_GPIO; |
7a079cab | 401 | |
bc593f5d | 402 | if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0) |
7a079cab | 403 | printk(KERN_ERR "Unable to get kill power GPIO\n"); |
7a079cab GG |
404 | } |
405 | ||
d2197e1e | 406 | static int __init early_touchbook_revision(char *p) |
7a079cab | 407 | { |
d2197e1e TL |
408 | if (!p) |
409 | return 0; | |
7a079cab | 410 | |
d2197e1e | 411 | return strict_strtoul(p, 10, &touchbook_revision); |
7a079cab | 412 | } |
d2197e1e | 413 | early_param("tbr", early_touchbook_revision); |
7a079cab GG |
414 | |
415 | static void __init omap3_touchbook_init(void) | |
416 | { | |
e0530460 | 417 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
e41cccfe TL |
418 | omap_board_config = omap3_touchbook_config; |
419 | omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config); | |
420 | ||
7a079cab GG |
421 | pm_power_off = omap3_touchbook_poweroff; |
422 | ||
423 | omap3_touchbook_i2c_init(); | |
424 | platform_add_devices(omap3_touchbook_devices, | |
425 | ARRAY_SIZE(omap3_touchbook_devices)); | |
426 | omap_serial_init(); | |
427 | ||
428 | omap_mux_init_gpio(170, OMAP_PIN_INPUT); | |
7a079cab | 429 | /* REVISIT leave DVI powered down until it's needed ... */ |
bc593f5d | 430 | gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD"); |
7a079cab GG |
431 | |
432 | /* Touchscreen and accelerometer */ | |
96974a24 | 433 | omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata); |
9e18630b | 434 | usb_musb_init(NULL); |
9e64bb1e | 435 | usbhs_init(&usbhs_bdata); |
9a3f39ff MR |
436 | omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions, |
437 | ARRAY_SIZE(omap3touchbook_nand_partitions)); | |
7a079cab GG |
438 | |
439 | /* Ensure SDRC pins are mux'd for self-refresh */ | |
440 | omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); | |
441 | omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); | |
442 | } | |
443 | ||
7a079cab GG |
444 | MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board") |
445 | /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */ | |
7a079cab | 446 | .boot_params = 0x80000100, |
71ee7dad | 447 | .reserve = omap_reserve, |
3dc3bad6 RKAL |
448 | .map_io = omap3_map_io, |
449 | .init_early = omap3_touchbook_init_early, | |
7a079cab GG |
450 | .init_irq = omap3_touchbook_init_irq, |
451 | .init_machine = omap3_touchbook_init, | |
452 | .timer = &omap_timer, | |
453 | MACHINE_END |