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