Merge tag 'tty-3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
[linux-2.6-block.git] / arch / arm / mach-omap2 / board-omap3touchbook.c
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7a079cab
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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>
51482be9 31#include <linux/usb/phy.h>
7a079cab 32
2203747c 33#include <linux/platform_data/spi-omap2-mcspi.h>
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34#include <linux/spi/spi.h>
35
36#include <linux/spi/ads7846.h>
37
38#include <linux/regulator/machine.h>
ebeb53e1 39#include <linux/i2c/twl.h>
7a079cab 40
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41#include <asm/mach-types.h>
42#include <asm/mach/arch.h>
43#include <asm/mach/map.h>
44#include <asm/mach/flash.h>
9f97da78 45#include <asm/system_info.h>
7a079cab 46
4e65331c 47#include "common.h"
3ef5d007 48#include "gpmc.h"
2203747c 49#include <linux/platform_data/mtd-nand-omap2.h>
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50
51#include "mux.h"
d02a900b 52#include "hsmmc.h"
2e618261 53#include "board-flash.h"
96974a24 54#include "common-board-devices.h"
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55
56#include <asm/setup.h>
57
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58#define OMAP3_AC_GPIO 136
59#define OMAP3_TS_GPIO 162
60#define TB_BL_PWM_TIMER 9
61#define TB_KILL_POWER_GPIO 168
62
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63#define NAND_CS 0
64
38815733 65static unsigned long touchbook_revision;
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66
67static struct mtd_partition omap3touchbook_nand_partitions[] = {
68 /* All the partition sizes are listed in terms of NAND block size */
69 {
70 .name = "X-Loader",
71 .offset = 0,
72 .size = 4 * NAND_BLOCK_SIZE,
73 .mask_flags = MTD_WRITEABLE, /* force read-only */
74 },
75 {
76 .name = "U-Boot",
77 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
78 .size = 15 * NAND_BLOCK_SIZE,
79 .mask_flags = MTD_WRITEABLE, /* force read-only */
80 },
81 {
82 .name = "U-Boot Env",
83 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
84 .size = 1 * NAND_BLOCK_SIZE,
85 },
86 {
87 .name = "Kernel",
88 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
89 .size = 32 * NAND_BLOCK_SIZE,
90 },
91 {
92 .name = "File System",
93 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
94 .size = MTDPART_SIZ_FULL,
95 },
96};
97
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98#include "sdram-micron-mt46h32m32lf-6.h"
99
68ff0423 100static struct omap2_hsmmc_info mmc[] = {
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101 {
102 .mmc = 1,
3a63833e 103 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
7a079cab 104 .gpio_wp = 29,
3b972bf0 105 .deferred = true,
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106 },
107 {} /* Terminator */
108};
109
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110static struct regulator_consumer_supply touchbook_vmmc1_supply[] = {
111 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
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112};
113
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114static struct regulator_consumer_supply touchbook_vsim_supply[] = {
115 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
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116};
117
118static struct gpio_led gpio_leds[];
119
120static int touchbook_twl_gpio_setup(struct device *dev,
121 unsigned gpio, unsigned ngpio)
122{
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123 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
124 mmc[0].gpio_cd = gpio + 0;
3b972bf0 125 omap_hsmmc_late_init(mmc);
7a079cab 126
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127 /* REVISIT: need ehci-omap hooks for external VBUS
128 * power switch and overcurrent detect
129 */
bc593f5d 130 gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC");
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131
132 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
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133 gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
134 "nEN_USB_PWR");
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135
136 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
137 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
138
139 return 0;
140}
141
142static struct twl4030_gpio_platform_data touchbook_gpio_data = {
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143 .use_leds = true,
144 .pullups = BIT(1),
145 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
146 | BIT(15) | BIT(16) | BIT(17),
147 .setup = touchbook_twl_gpio_setup,
148};
149
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150static struct regulator_consumer_supply touchbook_vdac_supply[] = {
151{
7a079cab 152 .supply = "vdac",
786b01a8 153},
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154};
155
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156static struct regulator_consumer_supply touchbook_vdvi_supply[] = {
157{
7a079cab 158 .supply = "vdvi",
786b01a8 159},
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160};
161
162/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
163static struct regulator_init_data touchbook_vmmc1 = {
164 .constraints = {
165 .min_uV = 1850000,
166 .max_uV = 3150000,
167 .valid_modes_mask = REGULATOR_MODE_NORMAL
168 | REGULATOR_MODE_STANDBY,
169 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
170 | REGULATOR_CHANGE_MODE
171 | REGULATOR_CHANGE_STATUS,
172 },
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173 .num_consumer_supplies = ARRAY_SIZE(touchbook_vmmc1_supply),
174 .consumer_supplies = touchbook_vmmc1_supply,
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175};
176
177/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
178static struct regulator_init_data touchbook_vsim = {
179 .constraints = {
180 .min_uV = 1800000,
181 .max_uV = 3000000,
182 .valid_modes_mask = REGULATOR_MODE_NORMAL
183 | REGULATOR_MODE_STANDBY,
184 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
185 | REGULATOR_CHANGE_MODE
186 | REGULATOR_CHANGE_STATUS,
187 },
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188 .num_consumer_supplies = ARRAY_SIZE(touchbook_vsim_supply),
189 .consumer_supplies = touchbook_vsim_supply,
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190};
191
7a079cab 192static struct twl4030_platform_data touchbook_twldata = {
7a079cab 193 /* platform_data for children goes here */
7a079cab 194 .gpio = &touchbook_gpio_data,
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195 .vmmc1 = &touchbook_vmmc1,
196 .vsim = &touchbook_vsim,
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197};
198
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199static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
200 {
201 I2C_BOARD_INFO("bq27200", 0x55),
202 },
203};
204
205static int __init omap3_touchbook_i2c_init(void)
206{
207 /* Standard TouchBook bus */
827ed9ae 208 omap3_pmic_get_config(&touchbook_twldata,
b252b0ef
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209 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
210 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
211
212 touchbook_twldata.vdac->num_consumer_supplies =
213 ARRAY_SIZE(touchbook_vdac_supply);
214 touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply;
215
216 touchbook_twldata.vpll2->constraints.name = "VDVI";
217 touchbook_twldata.vpll2->num_consumer_supplies =
218 ARRAY_SIZE(touchbook_vdvi_supply);
219 touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply;
220
fbd8071c 221 omap3_pmic_init("twl4030", &touchbook_twldata);
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222 /* Additional TouchBook bus */
223 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
224 ARRAY_SIZE(touchBook_i2c_boardinfo));
225
226 return 0;
227}
228
96974a24 229static struct ads7846_platform_data ads7846_pdata = {
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230 .x_min = 100,
231 .y_min = 265,
232 .x_max = 3950,
233 .y_max = 3750,
234 .x_plate_ohms = 40,
235 .pressure_max = 255,
236 .debounce_max = 10,
237 .debounce_tol = 5,
238 .debounce_rep = 1,
239 .gpio_pendown = OMAP3_TS_GPIO,
240 .keep_vref_on = 1,
241};
242
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243static struct gpio_led gpio_leds[] = {
244 {
245 .name = "touchbook::usr0",
246 .default_trigger = "heartbeat",
247 .gpio = 150,
248 },
249 {
250 .name = "touchbook::usr1",
251 .default_trigger = "mmc0",
252 .gpio = 149,
253 },
254 {
255 .name = "touchbook::pmu_stat",
256 .gpio = -EINVAL, /* gets replaced */
257 .active_low = true,
258 },
259};
260
261static struct gpio_led_platform_data gpio_led_info = {
262 .leds = gpio_leds,
263 .num_leds = ARRAY_SIZE(gpio_leds),
264};
265
266static struct platform_device leds_gpio = {
267 .name = "leds-gpio",
268 .id = -1,
269 .dev = {
270 .platform_data = &gpio_led_info,
271 },
272};
273
274static struct gpio_keys_button gpio_buttons[] = {
275 {
276 .code = BTN_EXTRA,
277 .gpio = 7,
278 .desc = "user",
279 .wakeup = 1,
280 },
281 {
282 .code = KEY_POWER,
283 .gpio = 183,
284 .desc = "power",
285 .wakeup = 1,
286 },
287};
288
289static struct gpio_keys_platform_data gpio_key_info = {
290 .buttons = gpio_buttons,
291 .nbuttons = ARRAY_SIZE(gpio_buttons),
292};
293
294static struct platform_device keys_gpio = {
295 .name = "gpio-keys",
296 .id = -1,
297 .dev = {
298 .platform_data = &gpio_key_info,
299 },
300};
301
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302#ifdef CONFIG_OMAP_MUX
303static struct omap_board_mux board_mux[] __initdata = {
304 { .reg_offset = OMAP_MUX_TERMINATOR },
305};
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306#endif
307
7a079cab 308static struct platform_device *omap3_touchbook_devices[] __initdata = {
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309 &leds_gpio,
310 &keys_gpio,
311};
312
42973159 313static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
7a079cab 314
181b250c
KM
315 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
316 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
317 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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318
319 .phy_reset = true,
320 .reset_gpio_port[0] = -EINVAL,
321 .reset_gpio_port[1] = 147,
322 .reset_gpio_port[2] = -EINVAL
323};
324
325static void omap3_touchbook_poweroff(void)
326{
bc593f5d 327 int pwr_off = TB_KILL_POWER_GPIO;
7a079cab 328
bc593f5d 329 if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0)
7a079cab 330 printk(KERN_ERR "Unable to get kill power GPIO\n");
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331}
332
d2197e1e 333static int __init early_touchbook_revision(char *p)
7a079cab 334{
d2197e1e
TL
335 if (!p)
336 return 0;
7a079cab 337
d2197e1e 338 return strict_strtoul(p, 10, &touchbook_revision);
7a079cab 339}
d2197e1e 340early_param("tbr", early_touchbook_revision);
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341
342static void __init omap3_touchbook_init(void)
343{
e0530460 344 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
e41cccfe 345
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346 pm_power_off = omap3_touchbook_poweroff;
347
d1589f09
TL
348 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
349 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
350 mmc[0].gpio_wp = 23;
351 } else {
352 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
353 }
3b972bf0 354 omap_hsmmc_init(mmc);
d1589f09 355
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356 omap3_touchbook_i2c_init();
357 platform_add_devices(omap3_touchbook_devices,
358 ARRAY_SIZE(omap3_touchbook_devices));
359 omap_serial_init();
a4ca9dbe
TL
360 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
361 mt46h32m32lf6_sdrc_params);
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362
363 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
7a079cab 364 /* REVISIT leave DVI powered down until it's needed ... */
bc593f5d 365 gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
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366
367 /* Touchscreen and accelerometer */
96974a24 368 omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
51482be9 369 usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
9e18630b 370 usb_musb_init(NULL);
9e64bb1e 371 usbhs_init(&usbhs_bdata);
2e618261
AM
372 board_nand_init(omap3touchbook_nand_partitions,
373 ARRAY_SIZE(omap3touchbook_nand_partitions), NAND_CS,
374 NAND_BUSWIDTH_16, NULL);
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375
376 /* Ensure SDRC pins are mux'd for self-refresh */
377 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
378 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
379}
380
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381MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
382 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
5e52b435 383 .atag_offset = 0x100,
71ee7dad 384 .reserve = omap_reserve,
3dc3bad6 385 .map_io = omap3_map_io,
8f5b5a41 386 .init_early = omap3430_init_early,
be732460 387 .init_irq = omap3_init_irq,
6b2f55d7 388 .handle_irq = omap3_intc_handle_irq,
7a079cab 389 .init_machine = omap3_touchbook_init,
bbd707ac 390 .init_late = omap3430_init_late,
6bb27d73 391 .init_time = omap3_secure_sync32k_timer_init,
187e3e06 392 .restart = omap3xxx_restart,
7a079cab 393MACHINE_END