arch/arm/mach-omap2/board-omap3pandora.c

   1 /*
   2  * board-omap3pandora.c (Pandora Handheld Console)
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * version 2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  16  * 02110-1301 USA
  17  *
  18  */
  19
  20 #include <linux/init.h>
  21 #include <linux/kernel.h>
  22 #include <linux/platform_device.h>
  23
  24 #include <linux/spi/spi.h>
  25 #include <linux/spi/ads7846.h>
  26 #include <linux/regulator/machine.h>
  27 #include <linux/i2c/twl4030.h>
  28 #include <linux/leds.h>
  29 #include <linux/input.h>
  30 #include <linux/gpio_keys.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <mach/board.h>
  37 #include <mach/common.h>
  38 #include <mach/gpio.h>
  39 #include <mach/hardware.h>
  40 #include <mach/mcspi.h>
  41 #include <mach/usb.h>
  42 #include <mach/keypad.h>
  43 #include <mach/mux.h>
  44
  45 #include "sdram-micron-mt46h32m32lf-6.h"
  46 #include "mmc-twl4030.h"
  47
  48 #define OMAP3_PANDORA_TS_GPIO           94
  49
  50 /* hardware debounce: (value + 1) * 31us */
  51 #define GPIO_DEBOUNCE_TIME              127
  52
  53 static struct gpio_led pandora_gpio_leds[] = {
  54         {
  55                 .name                   = "pandora::sd1",
  56                 .default_trigger        = "mmc0",
  57                 .gpio                   = 128,
  58         }, {
  59                 .name                   = "pandora::sd2",
  60                 .default_trigger        = "mmc1",
  61                 .gpio                   = 129,
  62         }, {
  63                 .name                   = "pandora::bluetooth",
  64                 .gpio                   = 158,
  65         }, {
  66                 .name                   = "pandora::wifi",
  67                 .gpio                   = 159,
  68         },
  69 };
  70
  71 static struct gpio_led_platform_data pandora_gpio_led_data = {
  72         .leds           = pandora_gpio_leds,
  73         .num_leds       = ARRAY_SIZE(pandora_gpio_leds),
  74 };
  75
  76 static struct platform_device pandora_leds_gpio = {
  77         .name   = "leds-gpio",
  78         .id     = -1,
  79         .dev    = {
  80                 .platform_data  = &pandora_gpio_led_data,
  81         },
  82 };
  83
  84 #define GPIO_BUTTON(gpio_num, ev_type, ev_code, act_low, descr) \
  85 {                                                               \
  86         .gpio           = gpio_num,                             \
  87         .type           = ev_type,                              \
  88         .code           = ev_code,                              \
  89         .active_low     = act_low,                              \
  90         .desc           = "btn " descr,                         \
  91 }
  92
  93 #define GPIO_BUTTON_LOW(gpio_num, event_code, description)      \
  94         GPIO_BUTTON(gpio_num, EV_KEY, event_code, 1, description)
  95
  96 static struct gpio_keys_button pandora_gpio_keys[] = {
  97         GPIO_BUTTON_LOW(110,    KEY_UP,         "up"),
  98         GPIO_BUTTON_LOW(103,    KEY_DOWN,       "down"),
  99         GPIO_BUTTON_LOW(96,     KEY_LEFT,       "left"),
 100         GPIO_BUTTON_LOW(98,     KEY_RIGHT,      "right"),
 101         GPIO_BUTTON_LOW(111,    BTN_A,          "a"),
 102         GPIO_BUTTON_LOW(106,    BTN_B,          "b"),
 103         GPIO_BUTTON_LOW(109,    BTN_X,          "x"),
 104         GPIO_BUTTON_LOW(101,    BTN_Y,          "y"),
 105         GPIO_BUTTON_LOW(102,    BTN_TL,         "l"),
 106         GPIO_BUTTON_LOW(97,     BTN_TL2,        "l2"),
 107         GPIO_BUTTON_LOW(105,    BTN_TR,         "r"),
 108         GPIO_BUTTON_LOW(107,    BTN_TR2,        "r2"),
 109         GPIO_BUTTON_LOW(104,    KEY_LEFTCTRL,   "ctrl"),
 110         GPIO_BUTTON_LOW(99,     KEY_MENU,       "menu"),
 111         GPIO_BUTTON_LOW(176,    KEY_COFFEE,     "hold"),
 112         GPIO_BUTTON(100, EV_KEY, KEY_LEFTALT, 0, "alt"),
 113         GPIO_BUTTON(108, EV_SW, SW_LID, 1, "lid"),
 114 };
 115
 116 static struct gpio_keys_platform_data pandora_gpio_key_info = {
 117         .buttons        = pandora_gpio_keys,
 118         .nbuttons       = ARRAY_SIZE(pandora_gpio_keys),
 119 };
 120
 121 static struct platform_device pandora_keys_gpio = {
 122         .name   = "gpio-keys",
 123         .id     = -1,
 124         .dev    = {
 125                 .platform_data  = &pandora_gpio_key_info,
 126         },
 127 };
 128
 129 static void __init pandora_keys_gpio_init(void)
 130 {
 131         /* set debounce time for GPIO banks 4 and 6 */
 132         omap_set_gpio_debounce_time(32 * 3, GPIO_DEBOUNCE_TIME);
 133         omap_set_gpio_debounce_time(32 * 5, GPIO_DEBOUNCE_TIME);
 134 }
 135
 136 static int pandora_keypad_map[] = {
 137         /* col, row, code */
 138         KEY(0, 0, KEY_9),
 139         KEY(0, 1, KEY_0),
 140         KEY(0, 2, KEY_BACKSPACE),
 141         KEY(0, 3, KEY_O),
 142         KEY(0, 4, KEY_P),
 143         KEY(0, 5, KEY_K),
 144         KEY(0, 6, KEY_L),
 145         KEY(0, 7, KEY_ENTER),
 146         KEY(1, 0, KEY_8),
 147         KEY(1, 1, KEY_7),
 148         KEY(1, 2, KEY_6),
 149         KEY(1, 3, KEY_5),
 150         KEY(1, 4, KEY_4),
 151         KEY(1, 5, KEY_3),
 152         KEY(1, 6, KEY_2),
 153         KEY(1, 7, KEY_1),
 154         KEY(2, 0, KEY_I),
 155         KEY(2, 1, KEY_U),
 156         KEY(2, 2, KEY_Y),
 157         KEY(2, 3, KEY_T),
 158         KEY(2, 4, KEY_R),
 159         KEY(2, 5, KEY_E),
 160         KEY(2, 6, KEY_W),
 161         KEY(2, 7, KEY_Q),
 162         KEY(3, 0, KEY_J),
 163         KEY(3, 1, KEY_H),
 164         KEY(3, 2, KEY_G),
 165         KEY(3, 3, KEY_F),
 166         KEY(3, 4, KEY_D),
 167         KEY(3, 5, KEY_S),
 168         KEY(3, 6, KEY_A),
 169         KEY(3, 7, KEY_LEFTSHIFT),
 170         KEY(4, 0, KEY_N),
 171         KEY(4, 1, KEY_B),
 172         KEY(4, 2, KEY_V),
 173         KEY(4, 3, KEY_C),
 174         KEY(4, 4, KEY_X),
 175         KEY(4, 5, KEY_Z),
 176         KEY(4, 6, KEY_DOT),
 177         KEY(4, 7, KEY_COMMA),
 178         KEY(5, 0, KEY_M),
 179         KEY(5, 1, KEY_SPACE),
 180         KEY(5, 2, KEY_FN),
 181 };
 182
 183 static struct twl4030_keypad_data pandora_kp_data = {
 184         .rows           = 8,
 185         .cols           = 6,
 186         .keymap         = pandora_keypad_map,
 187         .keymapsize     = ARRAY_SIZE(pandora_keypad_map),
 188         .rep            = 1,
 189 };
 190
 191 static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
 192         {
 193                 .mmc            = 1,
 194                 .wires          = 4,
 195                 .gpio_cd        = -EINVAL,
 196                 .gpio_wp        = 126,
 197                 .ext_clock      = 0,
 198         },
 199         {
 200                 .mmc            = 2,
 201                 .wires          = 4,
 202                 .gpio_cd        = -EINVAL,
 203                 .gpio_wp        = 127,
 204                 .ext_clock      = 1,
 205                 .transceiver    = true,
 206         },
 207         {
 208                 .mmc            = 3,
 209                 .wires          = 4,
 210                 .gpio_cd        = -EINVAL,
 211                 .gpio_wp        = -EINVAL,
 212         },
 213         {}      /* Terminator */
 214 };
 215
 216 static struct omap_uart_config omap3pandora_uart_config __initdata = {
 217         .enabled_uarts  = (1 << 2), /* UART3 */
 218 };
 219
 220 static struct regulator_consumer_supply pandora_vmmc1_supply = {
 221         .supply                 = "vmmc",
 222 };
 223
 224 static struct regulator_consumer_supply pandora_vmmc2_supply = {
 225         .supply                 = "vmmc",
 226 };
 227
 228 static int omap3pandora_twl_gpio_setup(struct device *dev,
 229                 unsigned gpio, unsigned ngpio)
 230 {
 231         /* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */
 232         omap3pandora_mmc[0].gpio_cd = gpio + 0;
 233         omap3pandora_mmc[1].gpio_cd = gpio + 1;
 234         twl4030_mmc_init(omap3pandora_mmc);
 235
 236         /* link regulators to MMC adapters */
 237         pandora_vmmc1_supply.dev = omap3pandora_mmc[0].dev;
 238         pandora_vmmc2_supply.dev = omap3pandora_mmc[1].dev;
 239
 240         return 0;
 241 }
 242
 243 static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
 244         .gpio_base      = OMAP_MAX_GPIO_LINES,
 245         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 246         .irq_end        = TWL4030_GPIO_IRQ_END,
 247         .setup          = omap3pandora_twl_gpio_setup,
 248 };
 249
 250 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 251 static struct regulator_init_data pandora_vmmc1 = {
 252         .constraints = {
 253                 .min_uV                 = 1850000,
 254                 .max_uV                 = 3150000,
 255                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 256                                         | REGULATOR_MODE_STANDBY,
 257                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 258                                         | REGULATOR_CHANGE_MODE
 259                                         | REGULATOR_CHANGE_STATUS,
 260         },
 261         .num_consumer_supplies  = 1,
 262         .consumer_supplies      = &pandora_vmmc1_supply,
 263 };
 264
 265 /* VMMC2 for MMC2 pins CMD, CLK, DAT0..DAT3 (max 100 mA) */
 266 static struct regulator_init_data pandora_vmmc2 = {
 267         .constraints = {
 268                 .min_uV                 = 1850000,
 269                 .max_uV                 = 3150000,
 270                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 271                                         | REGULATOR_MODE_STANDBY,
 272                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 273                                         | REGULATOR_CHANGE_MODE
 274                                         | REGULATOR_CHANGE_STATUS,
 275         },
 276         .num_consumer_supplies  = 1,
 277         .consumer_supplies      = &pandora_vmmc2_supply,
 278 };
 279
 280 static struct twl4030_usb_data omap3pandora_usb_data = {
 281         .usb_mode       = T2_USB_MODE_ULPI,
 282 };
 283
 284 static struct twl4030_platform_data omap3pandora_twldata = {
 285         .irq_base       = TWL4030_IRQ_BASE,
 286         .irq_end        = TWL4030_IRQ_END,
 287         .gpio           = &omap3pandora_gpio_data,
 288         .usb            = &omap3pandora_usb_data,
 289         .vmmc1          = &pandora_vmmc1,
 290         .vmmc2          = &pandora_vmmc2,
 291         .keypad         = &pandora_kp_data,
 292 };
 293
 294 static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
 295         {
 296                 I2C_BOARD_INFO("tps65950", 0x48),
 297                 .flags = I2C_CLIENT_WAKE,
 298                 .irq = INT_34XX_SYS_NIRQ,
 299                 .platform_data = &omap3pandora_twldata,
 300         },
 301 };
 302
 303 static int __init omap3pandora_i2c_init(void)
 304 {
 305         omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo,
 306                         ARRAY_SIZE(omap3pandora_i2c_boardinfo));
 307         /* i2c2 pins are not connected */
 308         omap_register_i2c_bus(3, 400, NULL, 0);
 309         return 0;
 310 }
 311
 312 static void __init omap3pandora_init_irq(void)
 313 {
 314         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 315                              mt46h32m32lf6_sdrc_params);
 316         omap_init_irq();
 317         omap_gpio_init();
 318 }
 319
 320 static void __init omap3pandora_ads7846_init(void)
 321 {
 322         int gpio = OMAP3_PANDORA_TS_GPIO;
 323         int ret;
 324
 325         ret = gpio_request(gpio, "ads7846_pen_down");
 326         if (ret < 0) {
 327                 printk(KERN_ERR "Failed to request GPIO %d for "
 328                                 "ads7846 pen down IRQ\n", gpio);
 329                 return;
 330         }
 331
 332         gpio_direction_input(gpio);
 333 }
 334
 335 static int ads7846_get_pendown_state(void)
 336 {
 337         return !gpio_get_value(OMAP3_PANDORA_TS_GPIO);
 338 }
 339
 340 static struct ads7846_platform_data ads7846_config = {
 341         .x_max                  = 0x0fff,
 342         .y_max                  = 0x0fff,
 343         .x_plate_ohms           = 180,
 344         .pressure_max           = 255,
 345         .debounce_max           = 10,
 346         .debounce_tol           = 3,
 347         .debounce_rep           = 1,
 348         .get_pendown_state      = ads7846_get_pendown_state,
 349         .keep_vref_on           = 1,
 350 };
 351
 352 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 353         .turbo_mode     = 0,
 354         .single_channel = 1,    /* 0: slave, 1: master */
 355 };
 356
 357 static struct spi_board_info omap3pandora_spi_board_info[] __initdata = {
 358         {
 359                 .modalias               = "ads7846",
 360                 .bus_num                = 1,
 361                 .chip_select            = 0,
 362                 .max_speed_hz           = 1500000,
 363                 .controller_data        = &ads7846_mcspi_config,
 364                 .irq                    = OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO),
 365                 .platform_data          = &ads7846_config,
 366         }
 367 };
 368
 369 static struct platform_device omap3pandora_lcd_device = {
 370         .name           = "pandora_lcd",
 371         .id             = -1,
 372 };
 373
 374 static struct omap_lcd_config omap3pandora_lcd_config __initdata = {
 375         .ctrl_name      = "internal",
 376 };
 377
 378 static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
 379         { OMAP_TAG_UART,        &omap3pandora_uart_config },
 380         { OMAP_TAG_LCD,         &omap3pandora_lcd_config },
 381 };
 382
 383 static struct platform_device *omap3pandora_devices[] __initdata = {
 384         &omap3pandora_lcd_device,
 385         &pandora_leds_gpio,
 386         &pandora_keys_gpio,
 387 };
 388
 389 static void __init omap3pandora_init(void)
 390 {
 391         omap3pandora_i2c_init();
 392         platform_add_devices(omap3pandora_devices,
 393                         ARRAY_SIZE(omap3pandora_devices));
 394         omap_board_config = omap3pandora_config;
 395         omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
 396         omap_serial_init();
 397         spi_register_board_info(omap3pandora_spi_board_info,
 398                         ARRAY_SIZE(omap3pandora_spi_board_info));
 399         omap3pandora_ads7846_init();
 400         pandora_keys_gpio_init();
 401         usb_musb_init();
 402
 403         /* Ensure SDRC pins are mux'd for self-refresh */
 404         omap_cfg_reg(H16_34XX_SDRC_CKE0);
 405         omap_cfg_reg(H17_34XX_SDRC_CKE1);
 406 }
 407
 408 static void __init omap3pandora_map_io(void)
 409 {
 410         omap2_set_globals_343x();
 411         omap2_map_common_io();
 412 }
 413
 414 MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
 415         .phys_io        = 0x48000000,
 416         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 417         .boot_params    = 0x80000100,
 418         .map_io         = omap3pandora_map_io,
 419         .init_irq       = omap3pandora_init_irq,
 420         .init_machine   = omap3pandora_init,
 421         .timer          = &omap_timer,
 422 MACHINE_END