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/input/matrix_keypad.h>
  31 #include <linux/gpio_keys.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36
  37 #include <plat/board.h>
  38 #include <plat/common.h>
  39 #include <mach/gpio.h>
  40 #include <mach/hardware.h>
  41 #include <plat/mcspi.h>
  42 #include <plat/usb.h>
  43 #include <plat/mux.h>
  44
  45 #include "mux.h"
  46 #include "sdram-micron-mt46h32m32lf-6.h"
  47 #include "mmc-twl4030.h"
  48
  49 #define OMAP3_PANDORA_TS_GPIO           94
  50
  51 /* hardware debounce: (value + 1) * 31us */
  52 #define GPIO_DEBOUNCE_TIME              127
  53
  54 static struct gpio_led pandora_gpio_leds[] = {
  55         {
  56                 .name                   = "pandora::sd1",
  57                 .default_trigger        = "mmc0",
  58                 .gpio                   = 128,
  59         }, {
  60                 .name                   = "pandora::sd2",
  61                 .default_trigger        = "mmc1",
  62                 .gpio                   = 129,
  63         }, {
  64                 .name                   = "pandora::bluetooth",
  65                 .gpio                   = 158,
  66         }, {
  67                 .name                   = "pandora::wifi",
  68                 .gpio                   = 159,
  69         },
  70 };
  71
  72 static struct gpio_led_platform_data pandora_gpio_led_data = {
  73         .leds           = pandora_gpio_leds,
  74         .num_leds       = ARRAY_SIZE(pandora_gpio_leds),
  75 };
  76
  77 static struct platform_device pandora_leds_gpio = {
  78         .name   = "leds-gpio",
  79         .id     = -1,
  80         .dev    = {
  81                 .platform_data  = &pandora_gpio_led_data,
  82         },
  83 };
  84
  85 #define GPIO_BUTTON(gpio_num, ev_type, ev_code, act_low, descr) \
  86 {                                                               \
  87         .gpio           = gpio_num,                             \
  88         .type           = ev_type,                              \
  89         .code           = ev_code,                              \
  90         .active_low     = act_low,                              \
  91         .desc           = "btn " descr,                         \
  92 }
  93
  94 #define GPIO_BUTTON_LOW(gpio_num, event_code, description)      \
  95         GPIO_BUTTON(gpio_num, EV_KEY, event_code, 1, description)
  96
  97 static struct gpio_keys_button pandora_gpio_keys[] = {
  98         GPIO_BUTTON_LOW(110,    KEY_UP,         "up"),
  99         GPIO_BUTTON_LOW(103,    KEY_DOWN,       "down"),
 100         GPIO_BUTTON_LOW(96,     KEY_LEFT,       "left"),
 101         GPIO_BUTTON_LOW(98,     KEY_RIGHT,      "right"),
 102         GPIO_BUTTON_LOW(111,    BTN_A,          "a"),
 103         GPIO_BUTTON_LOW(106,    BTN_B,          "b"),
 104         GPIO_BUTTON_LOW(109,    BTN_X,          "x"),
 105         GPIO_BUTTON_LOW(101,    BTN_Y,          "y"),
 106         GPIO_BUTTON_LOW(102,    BTN_TL,         "l"),
 107         GPIO_BUTTON_LOW(97,     BTN_TL2,        "l2"),
 108         GPIO_BUTTON_LOW(105,    BTN_TR,         "r"),
 109         GPIO_BUTTON_LOW(107,    BTN_TR2,        "r2"),
 110         GPIO_BUTTON_LOW(104,    KEY_LEFTCTRL,   "ctrl"),
 111         GPIO_BUTTON_LOW(99,     KEY_MENU,       "menu"),
 112         GPIO_BUTTON_LOW(176,    KEY_COFFEE,     "hold"),
 113         GPIO_BUTTON(100, EV_KEY, KEY_LEFTALT, 0, "alt"),
 114         GPIO_BUTTON(108, EV_SW, SW_LID, 1, "lid"),
 115 };
 116
 117 static struct gpio_keys_platform_data pandora_gpio_key_info = {
 118         .buttons        = pandora_gpio_keys,
 119         .nbuttons       = ARRAY_SIZE(pandora_gpio_keys),
 120 };
 121
 122 static struct platform_device pandora_keys_gpio = {
 123         .name   = "gpio-keys",
 124         .id     = -1,
 125         .dev    = {
 126                 .platform_data  = &pandora_gpio_key_info,
 127         },
 128 };
 129
 130 static void __init pandora_keys_gpio_init(void)
 131 {
 132         /* set debounce time for GPIO banks 4 and 6 */
 133         omap_set_gpio_debounce_time(32 * 3, GPIO_DEBOUNCE_TIME);
 134         omap_set_gpio_debounce_time(32 * 5, GPIO_DEBOUNCE_TIME);
 135 }
 136
 137 static int board_keymap[] = {
 138         /* row, col, code */
 139         KEY(0, 0, KEY_9),
 140         KEY(0, 1, KEY_8),
 141         KEY(0, 2, KEY_I),
 142         KEY(0, 3, KEY_J),
 143         KEY(0, 4, KEY_N),
 144         KEY(0, 5, KEY_M),
 145         KEY(1, 0, KEY_0),
 146         KEY(1, 1, KEY_7),
 147         KEY(1, 2, KEY_U),
 148         KEY(1, 3, KEY_H),
 149         KEY(1, 4, KEY_B),
 150         KEY(1, 5, KEY_SPACE),
 151         KEY(2, 0, KEY_BACKSPACE),
 152         KEY(2, 1, KEY_6),
 153         KEY(2, 2, KEY_Y),
 154         KEY(2, 3, KEY_G),
 155         KEY(2, 4, KEY_V),
 156         KEY(2, 5, KEY_FN),
 157         KEY(3, 0, KEY_O),
 158         KEY(3, 1, KEY_5),
 159         KEY(3, 2, KEY_T),
 160         KEY(3, 3, KEY_F),
 161         KEY(3, 4, KEY_C),
 162         KEY(4, 0, KEY_P),
 163         KEY(4, 1, KEY_4),
 164         KEY(4, 2, KEY_R),
 165         KEY(4, 3, KEY_D),
 166         KEY(4, 4, KEY_X),
 167         KEY(5, 0, KEY_K),
 168         KEY(5, 1, KEY_3),
 169         KEY(5, 2, KEY_E),
 170         KEY(5, 3, KEY_S),
 171         KEY(5, 4, KEY_Z),
 172         KEY(6, 0, KEY_L),
 173         KEY(6, 1, KEY_2),
 174         KEY(6, 2, KEY_W),
 175         KEY(6, 3, KEY_A),
 176         KEY(6, 4, KEY_DOT),
 177         KEY(7, 0, KEY_ENTER),
 178         KEY(7, 1, KEY_1),
 179         KEY(7, 2, KEY_Q),
 180         KEY(7, 3, KEY_LEFTSHIFT),
 181         KEY(7, 4, KEY_COMMA),
 182 };
 183
 184 static struct matrix_keymap_data board_map_data = {
 185         .keymap                 = board_keymap,
 186         .keymap_size            = ARRAY_SIZE(board_keymap),
 187 };
 188
 189 static struct twl4030_keypad_data pandora_kp_data = {
 190         .keymap_data    = &board_map_data,
 191         .rows           = 8,
 192         .cols           = 6,
 193         .rep            = 1,
 194 };
 195
 196 static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
 197         {
 198                 .mmc            = 1,
 199                 .wires          = 4,
 200                 .gpio_cd        = -EINVAL,
 201                 .gpio_wp        = 126,
 202                 .ext_clock      = 0,
 203         },
 204         {
 205                 .mmc            = 2,
 206                 .wires          = 4,
 207                 .gpio_cd        = -EINVAL,
 208                 .gpio_wp        = 127,
 209                 .ext_clock      = 1,
 210                 .transceiver    = true,
 211         },
 212         {
 213                 .mmc            = 3,
 214                 .wires          = 4,
 215                 .gpio_cd        = -EINVAL,
 216                 .gpio_wp        = -EINVAL,
 217         },
 218         {}      /* Terminator */
 219 };
 220
 221 static struct regulator_consumer_supply pandora_vmmc1_supply = {
 222         .supply                 = "vmmc",
 223 };
 224
 225 static struct regulator_consumer_supply pandora_vmmc2_supply = {
 226         .supply                 = "vmmc",
 227 };
 228
 229 static int omap3pandora_twl_gpio_setup(struct device *dev,
 230                 unsigned gpio, unsigned ngpio)
 231 {
 232         /* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */
 233         omap3pandora_mmc[0].gpio_cd = gpio + 0;
 234         omap3pandora_mmc[1].gpio_cd = gpio + 1;
 235         twl4030_mmc_init(omap3pandora_mmc);
 236
 237         /* link regulators to MMC adapters */
 238         pandora_vmmc1_supply.dev = omap3pandora_mmc[0].dev;
 239         pandora_vmmc2_supply.dev = omap3pandora_mmc[1].dev;
 240
 241         return 0;
 242 }
 243
 244 static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
 245         .gpio_base      = OMAP_MAX_GPIO_LINES,
 246         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 247         .irq_end        = TWL4030_GPIO_IRQ_END,
 248         .setup          = omap3pandora_twl_gpio_setup,
 249 };
 250
 251 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 252 static struct regulator_init_data pandora_vmmc1 = {
 253         .constraints = {
 254                 .min_uV                 = 1850000,
 255                 .max_uV                 = 3150000,
 256                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 257                                         | REGULATOR_MODE_STANDBY,
 258                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 259                                         | REGULATOR_CHANGE_MODE
 260                                         | REGULATOR_CHANGE_STATUS,
 261         },
 262         .num_consumer_supplies  = 1,
 263         .consumer_supplies      = &pandora_vmmc1_supply,
 264 };
 265
 266 /* VMMC2 for MMC2 pins CMD, CLK, DAT0..DAT3 (max 100 mA) */
 267 static struct regulator_init_data pandora_vmmc2 = {
 268         .constraints = {
 269                 .min_uV                 = 1850000,
 270                 .max_uV                 = 3150000,
 271                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 272                                         | REGULATOR_MODE_STANDBY,
 273                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 274                                         | REGULATOR_CHANGE_MODE
 275                                         | REGULATOR_CHANGE_STATUS,
 276         },
 277         .num_consumer_supplies  = 1,
 278         .consumer_supplies      = &pandora_vmmc2_supply,
 279 };
 280
 281 static struct twl4030_usb_data omap3pandora_usb_data = {
 282         .usb_mode       = T2_USB_MODE_ULPI,
 283 };
 284
 285 static struct twl4030_codec_audio_data omap3pandora_audio_data = {
 286         .audio_mclk = 26000000,
 287 };
 288
 289 static struct twl4030_codec_data omap3pandora_codec_data = {
 290         .audio_mclk = 26000000,
 291         .audio = &omap3pandora_audio_data,
 292 };
 293
 294 static struct twl4030_platform_data omap3pandora_twldata = {
 295         .irq_base       = TWL4030_IRQ_BASE,
 296         .irq_end        = TWL4030_IRQ_END,
 297         .gpio           = &omap3pandora_gpio_data,
 298         .usb            = &omap3pandora_usb_data,
 299         .codec          = &omap3pandora_codec_data,
 300         .vmmc1          = &pandora_vmmc1,
 301         .vmmc2          = &pandora_vmmc2,
 302         .keypad         = &pandora_kp_data,
 303 };
 304
 305 static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
 306         {
 307                 I2C_BOARD_INFO("tps65950", 0x48),
 308                 .flags = I2C_CLIENT_WAKE,
 309                 .irq = INT_34XX_SYS_NIRQ,
 310                 .platform_data = &omap3pandora_twldata,
 311         },
 312 };
 313
 314 static int __init omap3pandora_i2c_init(void)
 315 {
 316         omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo,
 317                         ARRAY_SIZE(omap3pandora_i2c_boardinfo));
 318         /* i2c2 pins are not connected */
 319         omap_register_i2c_bus(3, 400, NULL, 0);
 320         return 0;
 321 }
 322
 323 static void __init omap3pandora_ads7846_init(void)
 324 {
 325         int gpio = OMAP3_PANDORA_TS_GPIO;
 326         int ret;
 327
 328         ret = gpio_request(gpio, "ads7846_pen_down");
 329         if (ret < 0) {
 330                 printk(KERN_ERR "Failed to request GPIO %d for "
 331                                 "ads7846 pen down IRQ\n", gpio);
 332                 return;
 333         }
 334
 335         gpio_direction_input(gpio);
 336 }
 337
 338 static int ads7846_get_pendown_state(void)
 339 {
 340         return !gpio_get_value(OMAP3_PANDORA_TS_GPIO);
 341 }
 342
 343 static struct ads7846_platform_data ads7846_config = {
 344         .x_max                  = 0x0fff,
 345         .y_max                  = 0x0fff,
 346         .x_plate_ohms           = 180,
 347         .pressure_max           = 255,
 348         .debounce_max           = 10,
 349         .debounce_tol           = 3,
 350         .debounce_rep           = 1,
 351         .get_pendown_state      = ads7846_get_pendown_state,
 352         .keep_vref_on           = 1,
 353 };
 354
 355 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 356         .turbo_mode     = 0,
 357         .single_channel = 1,    /* 0: slave, 1: master */
 358 };
 359
 360 static struct spi_board_info omap3pandora_spi_board_info[] __initdata = {
 361         {
 362                 .modalias               = "ads7846",
 363                 .bus_num                = 1,
 364                 .chip_select            = 0,
 365                 .max_speed_hz           = 1500000,
 366                 .controller_data        = &ads7846_mcspi_config,
 367                 .irq                    = OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO),
 368                 .platform_data          = &ads7846_config,
 369         }
 370 };
 371
 372 static struct platform_device omap3pandora_lcd_device = {
 373         .name           = "pandora_lcd",
 374         .id             = -1,
 375 };
 376
 377 static struct omap_lcd_config omap3pandora_lcd_config __initdata = {
 378         .ctrl_name      = "internal",
 379 };
 380
 381 static struct omap_board_config_kernel omap3pandora_config[] __initdata = {
 382         { OMAP_TAG_LCD,         &omap3pandora_lcd_config },
 383 };
 384
 385 static void __init omap3pandora_init_irq(void)
 386 {
 387         omap_board_config = omap3pandora_config;
 388         omap_board_config_size = ARRAY_SIZE(omap3pandora_config);
 389         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 390                              mt46h32m32lf6_sdrc_params);
 391         omap_init_irq();
 392         omap_gpio_init();
 393 }
 394
 395 static struct platform_device *omap3pandora_devices[] __initdata = {
 396         &omap3pandora_lcd_device,
 397         &pandora_leds_gpio,
 398         &pandora_keys_gpio,
 399 };
 400
 401 static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 402
 403         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 404         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 405         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 406
 407         .phy_reset  = true,
 408         .reset_gpio_port[0]  = 16,
 409         .reset_gpio_port[1]  = -EINVAL,
 410         .reset_gpio_port[2]  = -EINVAL
 411 };
 412
 413 #ifdef CONFIG_OMAP_MUX
 414 static struct omap_board_mux board_mux[] __initdata = {
 415         { .reg_offset = OMAP_MUX_TERMINATOR },
 416 };
 417 #else
 418 #define board_mux       NULL
 419 #endif
 420
 421 static void __init omap3pandora_init(void)
 422 {
 423         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 424         omap3pandora_i2c_init();
 425         platform_add_devices(omap3pandora_devices,
 426                         ARRAY_SIZE(omap3pandora_devices));
 427         omap_serial_init();
 428         spi_register_board_info(omap3pandora_spi_board_info,
 429                         ARRAY_SIZE(omap3pandora_spi_board_info));
 430         omap3pandora_ads7846_init();
 431         usb_ehci_init(&ehci_pdata);
 432         pandora_keys_gpio_init();
 433         usb_musb_init();
 434
 435         /* Ensure SDRC pins are mux'd for self-refresh */
 436         omap_cfg_reg(H16_34XX_SDRC_CKE0);
 437         omap_cfg_reg(H17_34XX_SDRC_CKE1);
 438 }
 439
 440 static void __init omap3pandora_map_io(void)
 441 {
 442         omap2_set_globals_343x();
 443         omap2_map_common_io();
 444 }
 445
 446 MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
 447         .phys_io        = 0x48000000,
 448         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 449         .boot_params    = 0x80000100,
 450         .map_io         = omap3pandora_map_io,
 451         .init_irq       = omap3pandora_init_irq,
 452         .init_machine   = omap3pandora_init,
 453         .timer          = &omap_timer,
 454 MACHINE_END