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

   1 /*
   2  * board-overo.c (Gumstix Overo)
   3  *
   4  * Initial code: Steve Sakoman <steve@sakoman.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include <linux/clk.h>
  23 #include <linux/delay.h>
  24 #include <linux/err.h>
  25 #include <linux/init.h>
  26 #include <linux/io.h>
  27 #include <linux/gpio.h>
  28 #include <linux/kernel.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/i2c/twl.h>
  31 #include <linux/regulator/machine.h>
  32 #include <linux/regulator/fixed.h>
  33 #include <linux/spi/spi.h>
  34
  35 #include <linux/mtd/mtd.h>
  36 #include <linux/mtd/nand.h>
  37 #include <linux/mtd/partitions.h>
  38 #include <linux/mmc/host.h>
  39 #include <linux/usb/phy.h>
  40
  41 #include <linux/platform_data/mtd-nand-omap2.h>
  42 #include <linux/platform_data/spi-omap2-mcspi.h>
  43
  44 #include <asm/mach-types.h>
  45 #include <asm/mach/arch.h>
  46 #include <asm/mach/flash.h>
  47 #include <asm/mach/map.h>
  48
  49 #include <video/omapdss.h>
  50 #include <video/omap-panel-data.h>
  51
  52 #include "common.h"
  53 #include "mux.h"
  54 #include "sdram-micron-mt46h32m32lf-6.h"
  55 #include "gpmc.h"
  56 #include "hsmmc.h"
  57 #include "board-flash.h"
  58 #include "common-board-devices.h"
  59
  60 #define NAND_CS                 0
  61
  62 #define OVERO_GPIO_BT_XGATE     15
  63 #define OVERO_GPIO_W2W_NRESET   16
  64 #define OVERO_GPIO_PENDOWN      114
  65 #define OVERO_GPIO_BT_NRESET    164
  66 #define OVERO_GPIO_USBH_CPEN    168
  67 #define OVERO_GPIO_USBH_NRESET  183
  68
  69 #define OVERO_SMSC911X_CS      5
  70 #define OVERO_SMSC911X_GPIO    176
  71 #define OVERO_SMSC911X2_CS     4
  72 #define OVERO_SMSC911X2_GPIO   65
  73
  74 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
  75         defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  76
  77 /* fixed regulator for ads7846 */
  78 static struct regulator_consumer_supply ads7846_supply[] = {
  79         REGULATOR_SUPPLY("vcc", "spi1.0"),
  80 };
  81
  82 static struct regulator_init_data vads7846_regulator = {
  83         .constraints = {
  84                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
  85         },
  86         .num_consumer_supplies  = ARRAY_SIZE(ads7846_supply),
  87         .consumer_supplies      = ads7846_supply,
  88 };
  89
  90 static struct fixed_voltage_config vads7846 = {
  91         .supply_name            = "vads7846",
  92         .microvolts             = 3300000, /* 3.3V */
  93         .gpio                   = -EINVAL,
  94         .startup_delay          = 0,
  95         .init_data              = &vads7846_regulator,
  96 };
  97
  98 static struct platform_device vads7846_device = {
  99         .name           = "reg-fixed-voltage",
 100         .id             = 1,
 101         .dev = {
 102                 .platform_data = &vads7846,
 103         },
 104 };
 105
 106 static void __init overo_ads7846_init(void)
 107 {
 108         omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
 109         platform_device_register(&vads7846_device);
 110 }
 111
 112 #else
 113 static inline void __init overo_ads7846_init(void) { return; }
 114 #endif
 115
 116 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
 117
 118 #include <linux/smsc911x.h>
 119 #include "gpmc-smsc911x.h"
 120
 121 static struct omap_smsc911x_platform_data smsc911x_cfg = {
 122         .id             = 0,
 123         .cs             = OVERO_SMSC911X_CS,
 124         .gpio_irq       = OVERO_SMSC911X_GPIO,
 125         .gpio_reset     = -EINVAL,
 126         .flags          = SMSC911X_USE_32BIT,
 127 };
 128
 129 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
 130         .id             = 1,
 131         .cs             = OVERO_SMSC911X2_CS,
 132         .gpio_irq       = OVERO_SMSC911X2_GPIO,
 133         .gpio_reset     = -EINVAL,
 134         .flags          = SMSC911X_USE_32BIT,
 135 };
 136
 137 static void __init overo_init_smsc911x(void)
 138 {
 139         gpmc_smsc911x_init(&smsc911x_cfg);
 140         gpmc_smsc911x_init(&smsc911x2_cfg);
 141 }
 142
 143 #else
 144 static inline void __init overo_init_smsc911x(void) { return; }
 145 #endif
 146
 147 /* DSS */
 148 static int lcd_enabled;
 149 static int dvi_enabled;
 150
 151 #define OVERO_GPIO_LCD_EN 144
 152 #define OVERO_GPIO_LCD_BL 145
 153
 154 static struct gpio overo_dss_gpios[] __initdata = {
 155         { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
 156         { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
 157 };
 158
 159 static void __init overo_display_init(void)
 160 {
 161         if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
 162                 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
 163                 return;
 164         }
 165
 166         gpio_export(OVERO_GPIO_LCD_EN, 0);
 167         gpio_export(OVERO_GPIO_LCD_BL, 0);
 168 }
 169
 170 static struct tfp410_platform_data dvi_panel = {
 171         .i2c_bus_num            = 3,
 172         .power_down_gpio        = -1,
 173 };
 174
 175 static struct omap_dss_device overo_dvi_device = {
 176         .name                   = "dvi",
 177         .type                   = OMAP_DISPLAY_TYPE_DPI,
 178         .driver_name            = "tfp410",
 179         .data                   = &dvi_panel,
 180         .phy.dpi.data_lines     = 24,
 181 };
 182
 183 static struct omap_dss_device overo_tv_device = {
 184         .name = "tv",
 185         .driver_name = "venc",
 186         .type = OMAP_DISPLAY_TYPE_VENC,
 187         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 188 };
 189
 190 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
 191 {
 192         if (dvi_enabled) {
 193                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 194                 return -EINVAL;
 195         }
 196
 197         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
 198         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
 199         lcd_enabled = 1;
 200         return 0;
 201 }
 202
 203 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
 204 {
 205         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
 206         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
 207         lcd_enabled = 0;
 208 }
 209
 210 static struct panel_generic_dpi_data lcd43_panel = {
 211         .name                   = "samsung_lte430wq_f0c",
 212         .platform_enable        = overo_panel_enable_lcd,
 213         .platform_disable       = overo_panel_disable_lcd,
 214 };
 215
 216 static struct omap_dss_device overo_lcd43_device = {
 217         .name                   = "lcd43",
 218         .type                   = OMAP_DISPLAY_TYPE_DPI,
 219         .driver_name            = "generic_dpi_panel",
 220         .data                   = &lcd43_panel,
 221         .phy.dpi.data_lines     = 24,
 222 };
 223
 224 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 225         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 226 static struct omap_dss_device overo_lcd35_device = {
 227         .type                   = OMAP_DISPLAY_TYPE_DPI,
 228         .name                   = "lcd35",
 229         .driver_name            = "lgphilips_lb035q02_panel",
 230         .phy.dpi.data_lines     = 24,
 231         .platform_enable        = overo_panel_enable_lcd,
 232         .platform_disable       = overo_panel_disable_lcd,
 233 };
 234 #endif
 235
 236 static struct omap_dss_device *overo_dss_devices[] = {
 237         &overo_dvi_device,
 238         &overo_tv_device,
 239 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 240         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 241         &overo_lcd35_device,
 242 #endif
 243         &overo_lcd43_device,
 244 };
 245
 246 static struct omap_dss_board_info overo_dss_data = {
 247         .num_devices    = ARRAY_SIZE(overo_dss_devices),
 248         .devices        = overo_dss_devices,
 249         .default_device = &overo_dvi_device,
 250 };
 251
 252 static struct mtd_partition overo_nand_partitions[] = {
 253         {
 254                 .name           = "xloader",
 255                 .offset         = 0,                    /* Offset = 0x00000 */
 256                 .size           = 4 * NAND_BLOCK_SIZE,
 257                 .mask_flags     = MTD_WRITEABLE
 258         },
 259         {
 260                 .name           = "uboot",
 261                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 262                 .size           = 14 * NAND_BLOCK_SIZE,
 263         },
 264         {
 265                 .name           = "uboot environment",
 266                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
 267                 .size           = 2 * NAND_BLOCK_SIZE,
 268         },
 269         {
 270                 .name           = "linux",
 271                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 272                 .size           = 32 * NAND_BLOCK_SIZE,
 273         },
 274         {
 275                 .name           = "rootfs",
 276                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 277                 .size           = MTDPART_SIZ_FULL,
 278         },
 279 };
 280
 281 static struct omap2_hsmmc_info mmc[] = {
 282         {
 283                 .mmc            = 1,
 284                 .caps           = MMC_CAP_4_BIT_DATA,
 285                 .gpio_cd        = -EINVAL,
 286                 .gpio_wp        = -EINVAL,
 287         },
 288         {
 289                 .mmc            = 2,
 290                 .caps           = MMC_CAP_4_BIT_DATA,
 291                 .gpio_cd        = -EINVAL,
 292                 .gpio_wp        = -EINVAL,
 293                 .transceiver    = true,
 294                 .ocr_mask       = 0x00100000,   /* 3.3V */
 295         },
 296         {}      /* Terminator */
 297 };
 298
 299 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
 300         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 301 };
 302
 303 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 304 #include <linux/leds.h>
 305
 306 static struct gpio_led gpio_leds[] = {
 307         {
 308                 .name                   = "overo:red:gpio21",
 309                 .default_trigger        = "heartbeat",
 310                 .gpio                   = 21,
 311                 .active_low             = true,
 312         },
 313         {
 314                 .name                   = "overo:blue:gpio22",
 315                 .default_trigger        = "none",
 316                 .gpio                   = 22,
 317                 .active_low             = true,
 318         },
 319         {
 320                 .name                   = "overo:blue:COM",
 321                 .default_trigger        = "mmc0",
 322                 .gpio                   = -EINVAL,      /* gets replaced */
 323                 .active_low             = true,
 324         },
 325 };
 326
 327 static struct gpio_led_platform_data gpio_leds_pdata = {
 328         .leds           = gpio_leds,
 329         .num_leds       = ARRAY_SIZE(gpio_leds),
 330 };
 331
 332 static struct platform_device gpio_leds_device = {
 333         .name   = "leds-gpio",
 334         .id     = -1,
 335         .dev    = {
 336                 .platform_data  = &gpio_leds_pdata,
 337         },
 338 };
 339
 340 static void __init overo_init_led(void)
 341 {
 342         platform_device_register(&gpio_leds_device);
 343 }
 344
 345 #else
 346 static inline void __init overo_init_led(void) { return; }
 347 #endif
 348
 349 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 350 #include <linux/input.h>
 351 #include <linux/gpio_keys.h>
 352
 353 static struct gpio_keys_button gpio_buttons[] = {
 354         {
 355                 .code                   = BTN_0,
 356                 .gpio                   = 23,
 357                 .desc                   = "button0",
 358                 .wakeup                 = 1,
 359         },
 360         {
 361                 .code                   = BTN_1,
 362                 .gpio                   = 14,
 363                 .desc                   = "button1",
 364                 .wakeup                 = 1,
 365         },
 366 };
 367
 368 static struct gpio_keys_platform_data gpio_keys_pdata = {
 369         .buttons        = gpio_buttons,
 370         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 371 };
 372
 373 static struct platform_device gpio_keys_device = {
 374         .name   = "gpio-keys",
 375         .id     = -1,
 376         .dev    = {
 377                 .platform_data  = &gpio_keys_pdata,
 378         },
 379 };
 380
 381 static void __init overo_init_keys(void)
 382 {
 383         platform_device_register(&gpio_keys_device);
 384 }
 385
 386 #else
 387 static inline void __init overo_init_keys(void) { return; }
 388 #endif
 389
 390 static int overo_twl_gpio_setup(struct device *dev,
 391                 unsigned gpio, unsigned ngpio)
 392 {
 393 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 394         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 395         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 396 #endif
 397
 398         return 0;
 399 }
 400
 401 static struct twl4030_gpio_platform_data overo_gpio_data = {
 402         .use_leds       = true,
 403         .setup          = overo_twl_gpio_setup,
 404 };
 405
 406 static struct regulator_init_data overo_vmmc1 = {
 407         .constraints = {
 408                 .min_uV                 = 1850000,
 409                 .max_uV                 = 3150000,
 410                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 411                                         | REGULATOR_MODE_STANDBY,
 412                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 413                                         | REGULATOR_CHANGE_MODE
 414                                         | REGULATOR_CHANGE_STATUS,
 415         },
 416         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
 417         .consumer_supplies      = overo_vmmc1_supply,
 418 };
 419
 420 static struct twl4030_platform_data overo_twldata = {
 421         .gpio           = &overo_gpio_data,
 422         .vmmc1          = &overo_vmmc1,
 423 };
 424
 425 static int __init overo_i2c_init(void)
 426 {
 427         omap3_pmic_get_config(&overo_twldata,
 428                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
 429                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 430
 431         overo_twldata.vpll2->constraints.name = "VDVI";
 432
 433         omap3_pmic_init("tps65950", &overo_twldata);
 434         /* i2c2 pins are used for gpio */
 435         omap_register_i2c_bus(3, 400, NULL, 0);
 436         return 0;
 437 }
 438
 439 static struct spi_board_info overo_spi_board_info[] __initdata = {
 440 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 441         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 442         {
 443                 .modalias               = "lgphilips_lb035q02_panel-spi",
 444                 .bus_num                = 1,
 445                 .chip_select            = 1,
 446                 .max_speed_hz           = 500000,
 447                 .mode                   = SPI_MODE_3,
 448         },
 449 #endif
 450 };
 451
 452 static int __init overo_spi_init(void)
 453 {
 454         overo_ads7846_init();
 455         spi_register_board_info(overo_spi_board_info,
 456                         ARRAY_SIZE(overo_spi_board_info));
 457         return 0;
 458 }
 459
 460 static struct usbhs_phy_data phy_data[] __initdata = {
 461         {
 462                 .port = 2,
 463                 .reset_gpio = OVERO_GPIO_USBH_NRESET,
 464                 .vcc_gpio = -EINVAL,
 465         },
 466 };
 467
 468 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
 469         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 470 };
 471
 472 #ifdef CONFIG_OMAP_MUX
 473 static struct omap_board_mux board_mux[] __initdata = {
 474         { .reg_offset = OMAP_MUX_TERMINATOR },
 475 };
 476 #endif
 477
 478 static struct gpio overo_bt_gpios[] __initdata = {
 479         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
 480         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 481 };
 482
 483 static struct regulator_consumer_supply dummy_supplies[] = {
 484         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 485         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 486         REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
 487         REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
 488 };
 489
 490 static void __init overo_init(void)
 491 {
 492         int ret;
 493
 494         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 495         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 496         overo_i2c_init();
 497         omap_hsmmc_init(mmc);
 498         omap_display_init(&overo_dss_data);
 499         omap_serial_init();
 500         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
 501                                   mt46h32m32lf6_sdrc_params);
 502         board_nand_init(overo_nand_partitions,
 503                         ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL);
 504         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 505         usb_musb_init(NULL);
 506
 507         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
 508         usbhs_init(&usbhs_bdata);
 509         overo_spi_init();
 510         overo_init_smsc911x();
 511         overo_display_init();
 512         overo_init_led();
 513         overo_init_keys();
 514         omap_twl4030_audio_init("overo", NULL);
 515
 516         /* Ensure SDRC pins are mux'd for self-refresh */
 517         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 518         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 519
 520         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
 521                                "OVERO_GPIO_W2W_NRESET");
 522         if (ret == 0) {
 523                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
 524                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
 525                 udelay(10);
 526                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
 527         } else {
 528                 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
 529         }
 530
 531         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
 532         if (ret) {
 533                 pr_err("%s: could not obtain BT gpios\n", __func__);
 534         } else {
 535                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
 536                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
 537                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
 538                 mdelay(6);
 539                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
 540         }
 541
 542         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
 543                                "OVERO_GPIO_USBH_CPEN");
 544         if (ret == 0)
 545                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
 546         else
 547                 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
 548 }
 549
 550 MACHINE_START(OVERO, "Gumstix Overo")
 551         .atag_offset    = 0x100,
 552         .reserve        = omap_reserve,
 553         .map_io         = omap3_map_io,
 554         .init_early     = omap35xx_init_early,
 555         .init_irq       = omap3_init_irq,
 556         .handle_irq     = omap3_intc_handle_irq,
 557         .init_machine   = overo_init,
 558         .init_late      = omap35xx_init_late,
 559         .init_time      = omap3_sync32k_timer_init,
 560         .restart        = omap3xxx_restart,
 561 MACHINE_END