Linux 3.0-rc3
[deliverable/linux.git] / arch / arm / mach-omap2 / board-omap3touchbook.c
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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>
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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>
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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>
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51
52#include "mux.h"
d02a900b 53#include "hsmmc.h"
04aeae77 54#include "timer-gp.h"
96974a24 55#include "common-board-devices.h"
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56
57#include <asm/setup.h>
58
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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 64static unsigned long touchbook_revision;
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65
66static 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
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97#include "sdram-micron-mt46h32m32lf-6.h"
98
68ff0423 99static struct omap2_hsmmc_info mmc[] = {
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100 {
101 .mmc = 1,
3a63833e 102 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
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103 .gpio_wp = 29,
104 },
105 {} /* Terminator */
106};
107
108static struct platform_device omap3_touchbook_lcd_device = {
109 .name = "omap3touchbook_lcd",
110 .id = -1,
111};
112
113static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = {
114 .ctrl_name = "internal",
115};
116
117static struct regulator_consumer_supply touchbook_vmmc1_supply = {
118 .supply = "vmmc",
119};
120
121static struct regulator_consumer_supply touchbook_vsim_supply = {
122 .supply = "vmmc_aux",
123};
124
125static struct gpio_led gpio_leds[];
126
127static 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);
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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");
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148
149 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
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150 gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
151 "nEN_USB_PWR");
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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
159static 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
170static struct regulator_consumer_supply touchbook_vdac_supply = {
171 .supply = "vdac",
172 .dev = &omap3_touchbook_lcd_device.dev,
173};
174
175static 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) */
181static 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) */
196static 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) */
211static 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 */
225static 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
239static struct twl4030_usb_data touchbook_usb_data = {
240 .usb_mode = T2_USB_MODE_ULPI,
241};
242
6a58baf8 243static struct twl4030_codec_audio_data touchbook_audio_data;
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244
245static struct twl4030_codec_data touchbook_codec_data = {
246 .audio_mclk = 26000000,
247 .audio = &touchbook_audio_data,
248};
249
250static 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
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264static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
265 {
266 I2C_BOARD_INFO("bq27200", 0x55),
267 },
268};
269
270static int __init omap3_touchbook_i2c_init(void)
271{
272 /* Standard TouchBook bus */
fbd8071c 273 omap3_pmic_init("twl4030", &touchbook_twldata);
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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 282static struct ads7846_platform_data ads7846_pdata = {
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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
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296static 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
314static struct gpio_led_platform_data gpio_led_info = {
315 .leds = gpio_leds,
316 .num_leds = ARRAY_SIZE(gpio_leds),
317};
318
319static struct platform_device leds_gpio = {
320 .name = "leds-gpio",
321 .id = -1,
322 .dev = {
323 .platform_data = &gpio_led_info,
324 },
325};
326
327static 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
342static struct gpio_keys_platform_data gpio_key_info = {
343 .buttons = gpio_buttons,
344 .nbuttons = ARRAY_SIZE(gpio_buttons),
345};
346
347static struct platform_device keys_gpio = {
348 .name = "gpio-keys",
349 .id = -1,
350 .dev = {
351 .platform_data = &gpio_key_info,
352 },
353};
354
355static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = {
356 { OMAP_TAG_LCD, &omap3_touchbook_lcd_config },
357};
358
359#ifdef CONFIG_OMAP_MUX
360static struct omap_board_mux board_mux[] __initdata = {
361 { .reg_offset = OMAP_MUX_TERMINATOR },
362};
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363#endif
364
3dc3bad6 365static void __init omap3_touchbook_init_early(void)
7a079cab 366{
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367 omap2_init_common_infrastructure();
368 omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
369 mt46h32m32lf6_sdrc_params);
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370}
371
372static void __init omap3_touchbook_init_irq(void)
373{
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374 omap_init_irq();
375#ifdef CONFIG_OMAP_32K_TIMER
376 omap2_gp_clockevent_set_gptimer(12);
377#endif
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378}
379
380static struct platform_device *omap3_touchbook_devices[] __initdata = {
381 &omap3_touchbook_lcd_device,
382 &leds_gpio,
383 &keys_gpio,
384};
385
181b250c 386static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
7a079cab 387
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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,
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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
398static 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");
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404}
405
d2197e1e 406static int __init early_touchbook_revision(char *p)
7a079cab 407{
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408 if (!p)
409 return 0;
7a079cab 410
d2197e1e 411 return strict_strtoul(p, 10, &touchbook_revision);
7a079cab 412}
d2197e1e 413early_param("tbr", early_touchbook_revision);
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414
415static void __init omap3_touchbook_init(void)
416{
e0530460 417 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
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418 omap_board_config = omap3_touchbook_config;
419 omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config);
420
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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");
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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);
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436 omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions,
437 ARRAY_SIZE(omap3touchbook_nand_partitions));
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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
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444MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
445 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
7a079cab 446 .boot_params = 0x80000100,
71ee7dad 447 .reserve = omap_reserve,
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448 .map_io = omap3_map_io,
449 .init_early = omap3_touchbook_init_early,
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450 .init_irq = omap3_touchbook_init_irq,
451 .init_machine = omap3_touchbook_init,
452 .timer = &omap_timer,
453MACHINE_END
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