Linux 3.7-rc1
[deliverable/linux.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>
7a079cab 31
2203747c 32#include <linux/platform_data/spi-omap2-mcspi.h>
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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 39
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40#include <asm/mach-types.h>
41#include <asm/mach/arch.h>
42#include <asm/mach/map.h>
43#include <asm/mach/flash.h>
9f97da78 44#include <asm/system_info.h>
7a079cab 45
4e65331c 46#include "common.h"
7a079cab 47#include <plat/gpmc.h>
2203747c 48#include <linux/platform_data/mtd-nand-omap2.h>
7a079cab 49#include <plat/usb.h>
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50
51#include "mux.h"
d02a900b 52#include "hsmmc.h"
96974a24 53#include "common-board-devices.h"
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54
55#include <asm/setup.h>
56
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57#define OMAP3_AC_GPIO 136
58#define OMAP3_TS_GPIO 162
59#define TB_BL_PWM_TIMER 9
60#define TB_KILL_POWER_GPIO 168
61
38815733 62static unsigned long touchbook_revision;
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63
64static struct mtd_partition omap3touchbook_nand_partitions[] = {
65 /* All the partition sizes are listed in terms of NAND block size */
66 {
67 .name = "X-Loader",
68 .offset = 0,
69 .size = 4 * NAND_BLOCK_SIZE,
70 .mask_flags = MTD_WRITEABLE, /* force read-only */
71 },
72 {
73 .name = "U-Boot",
74 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
75 .size = 15 * NAND_BLOCK_SIZE,
76 .mask_flags = MTD_WRITEABLE, /* force read-only */
77 },
78 {
79 .name = "U-Boot Env",
80 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
81 .size = 1 * NAND_BLOCK_SIZE,
82 },
83 {
84 .name = "Kernel",
85 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
86 .size = 32 * NAND_BLOCK_SIZE,
87 },
88 {
89 .name = "File System",
90 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
91 .size = MTDPART_SIZ_FULL,
92 },
93};
94
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95#include "sdram-micron-mt46h32m32lf-6.h"
96
68ff0423 97static struct omap2_hsmmc_info mmc[] = {
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98 {
99 .mmc = 1,
3a63833e 100 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
7a079cab 101 .gpio_wp = 29,
3b972bf0 102 .deferred = true,
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103 },
104 {} /* Terminator */
105};
106
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107static struct regulator_consumer_supply touchbook_vmmc1_supply[] = {
108 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
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109};
110
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111static struct regulator_consumer_supply touchbook_vsim_supply[] = {
112 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
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113};
114
115static struct gpio_led gpio_leds[];
116
117static int touchbook_twl_gpio_setup(struct device *dev,
118 unsigned gpio, unsigned ngpio)
119{
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120 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
121 mmc[0].gpio_cd = gpio + 0;
3b972bf0 122 omap_hsmmc_late_init(mmc);
7a079cab 123
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124 /* REVISIT: need ehci-omap hooks for external VBUS
125 * power switch and overcurrent detect
126 */
bc593f5d 127 gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC");
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128
129 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
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130 gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW,
131 "nEN_USB_PWR");
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132
133 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
134 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
135
136 return 0;
137}
138
139static struct twl4030_gpio_platform_data touchbook_gpio_data = {
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140 .use_leds = true,
141 .pullups = BIT(1),
142 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
143 | BIT(15) | BIT(16) | BIT(17),
144 .setup = touchbook_twl_gpio_setup,
145};
146
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147static struct regulator_consumer_supply touchbook_vdac_supply[] = {
148{
7a079cab 149 .supply = "vdac",
786b01a8 150},
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151};
152
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153static struct regulator_consumer_supply touchbook_vdvi_supply[] = {
154{
7a079cab 155 .supply = "vdvi",
786b01a8 156},
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157};
158
159/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
160static struct regulator_init_data touchbook_vmmc1 = {
161 .constraints = {
162 .min_uV = 1850000,
163 .max_uV = 3150000,
164 .valid_modes_mask = REGULATOR_MODE_NORMAL
165 | REGULATOR_MODE_STANDBY,
166 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
167 | REGULATOR_CHANGE_MODE
168 | REGULATOR_CHANGE_STATUS,
169 },
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170 .num_consumer_supplies = ARRAY_SIZE(touchbook_vmmc1_supply),
171 .consumer_supplies = touchbook_vmmc1_supply,
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172};
173
174/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
175static struct regulator_init_data touchbook_vsim = {
176 .constraints = {
177 .min_uV = 1800000,
178 .max_uV = 3000000,
179 .valid_modes_mask = REGULATOR_MODE_NORMAL
180 | REGULATOR_MODE_STANDBY,
181 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
182 | REGULATOR_CHANGE_MODE
183 | REGULATOR_CHANGE_STATUS,
184 },
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185 .num_consumer_supplies = ARRAY_SIZE(touchbook_vsim_supply),
186 .consumer_supplies = touchbook_vsim_supply,
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187};
188
7a079cab 189static struct twl4030_platform_data touchbook_twldata = {
7a079cab 190 /* platform_data for children goes here */
7a079cab 191 .gpio = &touchbook_gpio_data,
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192 .vmmc1 = &touchbook_vmmc1,
193 .vsim = &touchbook_vsim,
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194};
195
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196static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = {
197 {
198 I2C_BOARD_INFO("bq27200", 0x55),
199 },
200};
201
202static int __init omap3_touchbook_i2c_init(void)
203{
204 /* Standard TouchBook bus */
827ed9ae 205 omap3_pmic_get_config(&touchbook_twldata,
b252b0ef
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206 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
207 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
208
209 touchbook_twldata.vdac->num_consumer_supplies =
210 ARRAY_SIZE(touchbook_vdac_supply);
211 touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply;
212
213 touchbook_twldata.vpll2->constraints.name = "VDVI";
214 touchbook_twldata.vpll2->num_consumer_supplies =
215 ARRAY_SIZE(touchbook_vdvi_supply);
216 touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply;
217
fbd8071c 218 omap3_pmic_init("twl4030", &touchbook_twldata);
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219 /* Additional TouchBook bus */
220 omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo,
221 ARRAY_SIZE(touchBook_i2c_boardinfo));
222
223 return 0;
224}
225
96974a24 226static struct ads7846_platform_data ads7846_pdata = {
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227 .x_min = 100,
228 .y_min = 265,
229 .x_max = 3950,
230 .y_max = 3750,
231 .x_plate_ohms = 40,
232 .pressure_max = 255,
233 .debounce_max = 10,
234 .debounce_tol = 5,
235 .debounce_rep = 1,
236 .gpio_pendown = OMAP3_TS_GPIO,
237 .keep_vref_on = 1,
238};
239
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240static struct gpio_led gpio_leds[] = {
241 {
242 .name = "touchbook::usr0",
243 .default_trigger = "heartbeat",
244 .gpio = 150,
245 },
246 {
247 .name = "touchbook::usr1",
248 .default_trigger = "mmc0",
249 .gpio = 149,
250 },
251 {
252 .name = "touchbook::pmu_stat",
253 .gpio = -EINVAL, /* gets replaced */
254 .active_low = true,
255 },
256};
257
258static struct gpio_led_platform_data gpio_led_info = {
259 .leds = gpio_leds,
260 .num_leds = ARRAY_SIZE(gpio_leds),
261};
262
263static struct platform_device leds_gpio = {
264 .name = "leds-gpio",
265 .id = -1,
266 .dev = {
267 .platform_data = &gpio_led_info,
268 },
269};
270
271static struct gpio_keys_button gpio_buttons[] = {
272 {
273 .code = BTN_EXTRA,
274 .gpio = 7,
275 .desc = "user",
276 .wakeup = 1,
277 },
278 {
279 .code = KEY_POWER,
280 .gpio = 183,
281 .desc = "power",
282 .wakeup = 1,
283 },
284};
285
286static struct gpio_keys_platform_data gpio_key_info = {
287 .buttons = gpio_buttons,
288 .nbuttons = ARRAY_SIZE(gpio_buttons),
289};
290
291static struct platform_device keys_gpio = {
292 .name = "gpio-keys",
293 .id = -1,
294 .dev = {
295 .platform_data = &gpio_key_info,
296 },
297};
298
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299#ifdef CONFIG_OMAP_MUX
300static struct omap_board_mux board_mux[] __initdata = {
301 { .reg_offset = OMAP_MUX_TERMINATOR },
302};
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303#endif
304
7a079cab 305static struct platform_device *omap3_touchbook_devices[] __initdata = {
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306 &leds_gpio,
307 &keys_gpio,
308};
309
181b250c 310static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
7a079cab 311
181b250c
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312 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
313 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
314 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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315
316 .phy_reset = true,
317 .reset_gpio_port[0] = -EINVAL,
318 .reset_gpio_port[1] = 147,
319 .reset_gpio_port[2] = -EINVAL
320};
321
322static void omap3_touchbook_poweroff(void)
323{
bc593f5d 324 int pwr_off = TB_KILL_POWER_GPIO;
7a079cab 325
bc593f5d 326 if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0)
7a079cab 327 printk(KERN_ERR "Unable to get kill power GPIO\n");
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328}
329
d2197e1e 330static int __init early_touchbook_revision(char *p)
7a079cab 331{
d2197e1e
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332 if (!p)
333 return 0;
7a079cab 334
d2197e1e 335 return strict_strtoul(p, 10, &touchbook_revision);
7a079cab 336}
d2197e1e 337early_param("tbr", early_touchbook_revision);
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338
339static void __init omap3_touchbook_init(void)
340{
e0530460 341 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
e41cccfe 342
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343 pm_power_off = omap3_touchbook_poweroff;
344
d1589f09
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345 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
346 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
347 mmc[0].gpio_wp = 23;
348 } else {
349 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
350 }
3b972bf0 351 omap_hsmmc_init(mmc);
d1589f09 352
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353 omap3_touchbook_i2c_init();
354 platform_add_devices(omap3_touchbook_devices,
355 ARRAY_SIZE(omap3_touchbook_devices));
356 omap_serial_init();
a4ca9dbe
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357 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
358 mt46h32m32lf6_sdrc_params);
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359
360 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
7a079cab 361 /* REVISIT leave DVI powered down until it's needed ... */
bc593f5d 362 gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
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363
364 /* Touchscreen and accelerometer */
96974a24 365 omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
9e18630b 366 usb_musb_init(NULL);
9e64bb1e 367 usbhs_init(&usbhs_bdata);
9a3f39ff
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368 omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions,
369 ARRAY_SIZE(omap3touchbook_nand_partitions));
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370
371 /* Ensure SDRC pins are mux'd for self-refresh */
372 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
373 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
374}
375
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376MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board")
377 /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */
5e52b435 378 .atag_offset = 0x100,
71ee7dad 379 .reserve = omap_reserve,
3dc3bad6 380 .map_io = omap3_map_io,
8f5b5a41 381 .init_early = omap3430_init_early,
be732460 382 .init_irq = omap3_init_irq,
6b2f55d7 383 .handle_irq = omap3_intc_handle_irq,
7a079cab 384 .init_machine = omap3_touchbook_init,
bbd707ac 385 .init_late = omap3430_init_late,
e74984e4 386 .timer = &omap3_secure_timer,
baa95883 387 .restart = omap_prcm_restart,
7a079cab 388MACHINE_END
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