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
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/flash.h>
  43 #include <asm/mach/map.h>
  44
  45 #include "common.h"
  46 #include <video/omapdss.h>
  47 #include <video/omap-panel-generic-dpi.h>
  48 #include <video/omap-panel-tfp410.h>
  49 #include <plat/gpmc.h>
  50 #include <mach/hardware.h>
  51 #include <plat/nand.h>
  52 #include <plat/mcspi.h>
  53 #include <plat/mux.h>
  54 #include <plat/usb.h>
  55
  56 #include "mux.h"
  57 #include "sdram-micron-mt46h32m32lf-6.h"
  58 #include "hsmmc.h"
  59 #include "common-board-devices.h"
  60
  61 #define OVERO_GPIO_BT_XGATE     15
  62 #define OVERO_GPIO_W2W_NRESET   16
  63 #define OVERO_GPIO_PENDOWN      114
  64 #define OVERO_GPIO_BT_NRESET    164
  65 #define OVERO_GPIO_USBH_CPEN    168
  66 #define OVERO_GPIO_USBH_NRESET  183
  67
  68 #define OVERO_SMSC911X_CS      5
  69 #define OVERO_SMSC911X_GPIO    176
  70 #define OVERO_SMSC911X2_CS     4
  71 #define OVERO_SMSC911X2_GPIO   65
  72
  73 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
  74         defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  75
  76 /* fixed regulator for ads7846 */
  77 static struct regulator_consumer_supply ads7846_supply[] = {
  78         REGULATOR_SUPPLY("vcc", "spi1.0"),
  79 };
  80
  81 static struct regulator_init_data vads7846_regulator = {
  82         .constraints = {
  83                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
  84         },
  85         .num_consumer_supplies  = ARRAY_SIZE(ads7846_supply),
  86         .consumer_supplies      = ads7846_supply,
  87 };
  88
  89 static struct fixed_voltage_config vads7846 = {
  90         .supply_name            = "vads7846",
  91         .microvolts             = 3300000, /* 3.3V */
  92         .gpio                   = -EINVAL,
  93         .startup_delay          = 0,
  94         .init_data              = &vads7846_regulator,
  95 };
  96
  97 static struct platform_device vads7846_device = {
  98         .name           = "reg-fixed-voltage",
  99         .id             = 1,
 100         .dev = {
 101                 .platform_data = &vads7846,
 102         },
 103 };
 104
 105 static void __init overo_ads7846_init(void)
 106 {
 107         omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
 108         platform_device_register(&vads7846_device);
 109 }
 110
 111 #else
 112 static inline void __init overo_ads7846_init(void) { return; }
 113 #endif
 114
 115 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
 116
 117 #include <linux/smsc911x.h>
 118 #include <plat/gpmc-smsc911x.h>
 119
 120 static struct omap_smsc911x_platform_data smsc911x_cfg = {
 121         .id             = 0,
 122         .cs             = OVERO_SMSC911X_CS,
 123         .gpio_irq       = OVERO_SMSC911X_GPIO,
 124         .gpio_reset     = -EINVAL,
 125         .flags          = SMSC911X_USE_32BIT,
 126 };
 127
 128 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
 129         .id             = 1,
 130         .cs             = OVERO_SMSC911X2_CS,
 131         .gpio_irq       = OVERO_SMSC911X2_GPIO,
 132         .gpio_reset     = -EINVAL,
 133         .flags          = SMSC911X_USE_32BIT,
 134 };
 135
 136 static void __init overo_init_smsc911x(void)
 137 {
 138         gpmc_smsc911x_init(&smsc911x_cfg);
 139         gpmc_smsc911x_init(&smsc911x2_cfg);
 140 }
 141
 142 #else
 143 static inline void __init overo_init_smsc911x(void) { return; }
 144 #endif
 145
 146 /* DSS */
 147 static int lcd_enabled;
 148 static int dvi_enabled;
 149
 150 #define OVERO_GPIO_LCD_EN 144
 151 #define OVERO_GPIO_LCD_BL 145
 152
 153 static struct gpio overo_dss_gpios[] __initdata = {
 154         { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
 155         { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
 156 };
 157
 158 static void __init overo_display_init(void)
 159 {
 160         if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
 161                 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
 162                 return;
 163         }
 164
 165         gpio_export(OVERO_GPIO_LCD_EN, 0);
 166         gpio_export(OVERO_GPIO_LCD_BL, 0);
 167 }
 168
 169 static struct tfp410_platform_data dvi_panel = {
 170         .i2c_bus_num            = 3,
 171         .power_down_gpio        = -1,
 172 };
 173
 174 static struct omap_dss_device overo_dvi_device = {
 175         .name                   = "dvi",
 176         .type                   = OMAP_DISPLAY_TYPE_DPI,
 177         .driver_name            = "tfp410",
 178         .data                   = &dvi_panel,
 179         .phy.dpi.data_lines     = 24,
 180 };
 181
 182 static struct omap_dss_device overo_tv_device = {
 183         .name = "tv",
 184         .driver_name = "venc",
 185         .type = OMAP_DISPLAY_TYPE_VENC,
 186         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 187 };
 188
 189 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
 190 {
 191         if (dvi_enabled) {
 192                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 193                 return -EINVAL;
 194         }
 195
 196         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
 197         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
 198         lcd_enabled = 1;
 199         return 0;
 200 }
 201
 202 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
 203 {
 204         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
 205         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
 206         lcd_enabled = 0;
 207 }
 208
 209 static struct panel_generic_dpi_data lcd43_panel = {
 210         .name                   = "samsung_lte430wq_f0c",
 211         .platform_enable        = overo_panel_enable_lcd,
 212         .platform_disable       = overo_panel_disable_lcd,
 213 };
 214
 215 static struct omap_dss_device overo_lcd43_device = {
 216         .name                   = "lcd43",
 217         .type                   = OMAP_DISPLAY_TYPE_DPI,
 218         .driver_name            = "generic_dpi_panel",
 219         .data                   = &lcd43_panel,
 220         .phy.dpi.data_lines     = 24,
 221 };
 222
 223 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 224         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 225 static struct omap_dss_device overo_lcd35_device = {
 226         .type                   = OMAP_DISPLAY_TYPE_DPI,
 227         .name                   = "lcd35",
 228         .driver_name            = "lgphilips_lb035q02_panel",
 229         .phy.dpi.data_lines     = 24,
 230         .platform_enable        = overo_panel_enable_lcd,
 231         .platform_disable       = overo_panel_disable_lcd,
 232 };
 233 #endif
 234
 235 static struct omap_dss_device *overo_dss_devices[] = {
 236         &overo_dvi_device,
 237         &overo_tv_device,
 238 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 239         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 240         &overo_lcd35_device,
 241 #endif
 242         &overo_lcd43_device,
 243 };
 244
 245 static struct omap_dss_board_info overo_dss_data = {
 246         .num_devices    = ARRAY_SIZE(overo_dss_devices),
 247         .devices        = overo_dss_devices,
 248         .default_device = &overo_dvi_device,
 249 };
 250
 251 static struct mtd_partition overo_nand_partitions[] = {
 252         {
 253                 .name           = "xloader",
 254                 .offset         = 0,                    /* Offset = 0x00000 */
 255                 .size           = 4 * NAND_BLOCK_SIZE,
 256                 .mask_flags     = MTD_WRITEABLE
 257         },
 258         {
 259                 .name           = "uboot",
 260                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 261                 .size           = 14 * NAND_BLOCK_SIZE,
 262         },
 263         {
 264                 .name           = "uboot environment",
 265                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
 266                 .size           = 2 * NAND_BLOCK_SIZE,
 267         },
 268         {
 269                 .name           = "linux",
 270                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 271                 .size           = 32 * NAND_BLOCK_SIZE,
 272         },
 273         {
 274                 .name           = "rootfs",
 275                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 276                 .size           = MTDPART_SIZ_FULL,
 277         },
 278 };
 279
 280 static struct omap2_hsmmc_info mmc[] = {
 281         {
 282                 .mmc            = 1,
 283                 .caps           = MMC_CAP_4_BIT_DATA,
 284                 .gpio_cd        = -EINVAL,
 285                 .gpio_wp        = -EINVAL,
 286         },
 287         {
 288                 .mmc            = 2,
 289                 .caps           = MMC_CAP_4_BIT_DATA,
 290                 .gpio_cd        = -EINVAL,
 291                 .gpio_wp        = -EINVAL,
 292                 .transceiver    = true,
 293                 .ocr_mask       = 0x00100000,   /* 3.3V */
 294         },
 295         {}      /* Terminator */
 296 };
 297
 298 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
 299         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 300 };
 301
 302 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 303 #include <linux/leds.h>
 304
 305 static struct gpio_led gpio_leds[] = {
 306         {
 307                 .name                   = "overo:red:gpio21",
 308                 .default_trigger        = "heartbeat",
 309                 .gpio                   = 21,
 310                 .active_low             = true,
 311         },
 312         {
 313                 .name                   = "overo:blue:gpio22",
 314                 .default_trigger        = "none",
 315                 .gpio                   = 22,
 316                 .active_low             = true,
 317         },
 318         {
 319                 .name                   = "overo:blue:COM",
 320                 .default_trigger        = "mmc0",
 321                 .gpio                   = -EINVAL,      /* gets replaced */
 322                 .active_low             = true,
 323         },
 324 };
 325
 326 static struct gpio_led_platform_data gpio_leds_pdata = {
 327         .leds           = gpio_leds,
 328         .num_leds       = ARRAY_SIZE(gpio_leds),
 329 };
 330
 331 static struct platform_device gpio_leds_device = {
 332         .name   = "leds-gpio",
 333         .id     = -1,
 334         .dev    = {
 335                 .platform_data  = &gpio_leds_pdata,
 336         },
 337 };
 338
 339 static void __init overo_init_led(void)
 340 {
 341         platform_device_register(&gpio_leds_device);
 342 }
 343
 344 #else
 345 static inline void __init overo_init_led(void) { return; }
 346 #endif
 347
 348 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 349 #include <linux/input.h>
 350 #include <linux/gpio_keys.h>
 351
 352 static struct gpio_keys_button gpio_buttons[] = {
 353         {
 354                 .code                   = BTN_0,
 355                 .gpio                   = 23,
 356                 .desc                   = "button0",
 357                 .wakeup                 = 1,
 358         },
 359         {
 360                 .code                   = BTN_1,
 361                 .gpio                   = 14,
 362                 .desc                   = "button1",
 363                 .wakeup                 = 1,
 364         },
 365 };
 366
 367 static struct gpio_keys_platform_data gpio_keys_pdata = {
 368         .buttons        = gpio_buttons,
 369         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 370 };
 371
 372 static struct platform_device gpio_keys_device = {
 373         .name   = "gpio-keys",
 374         .id     = -1,
 375         .dev    = {
 376                 .platform_data  = &gpio_keys_pdata,
 377         },
 378 };
 379
 380 static void __init overo_init_keys(void)
 381 {
 382         platform_device_register(&gpio_keys_device);
 383 }
 384
 385 #else
 386 static inline void __init overo_init_keys(void) { return; }
 387 #endif
 388
 389 static int overo_twl_gpio_setup(struct device *dev,
 390                 unsigned gpio, unsigned ngpio)
 391 {
 392 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 393         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 394         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 395 #endif
 396
 397         return 0;
 398 }
 399
 400 static struct twl4030_gpio_platform_data overo_gpio_data = {
 401         .use_leds       = true,
 402         .setup          = overo_twl_gpio_setup,
 403 };
 404
 405 static struct regulator_init_data overo_vmmc1 = {
 406         .constraints = {
 407                 .min_uV                 = 1850000,
 408                 .max_uV                 = 3150000,
 409                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 410                                         | REGULATOR_MODE_STANDBY,
 411                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 412                                         | REGULATOR_CHANGE_MODE
 413                                         | REGULATOR_CHANGE_STATUS,
 414         },
 415         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
 416         .consumer_supplies      = overo_vmmc1_supply,
 417 };
 418
 419 static struct twl4030_platform_data overo_twldata = {
 420         .gpio           = &overo_gpio_data,
 421         .vmmc1          = &overo_vmmc1,
 422 };
 423
 424 static int __init overo_i2c_init(void)
 425 {
 426         omap3_pmic_get_config(&overo_twldata,
 427                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
 428                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 429
 430         overo_twldata.vpll2->constraints.name = "VDVI";
 431
 432         omap3_pmic_init("tps65950", &overo_twldata);
 433         /* i2c2 pins are used for gpio */
 434         omap_register_i2c_bus(3, 400, NULL, 0);
 435         return 0;
 436 }
 437
 438 static struct spi_board_info overo_spi_board_info[] __initdata = {
 439 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 440         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 441         {
 442                 .modalias               = "lgphilips_lb035q02_panel-spi",
 443                 .bus_num                = 1,
 444                 .chip_select            = 1,
 445                 .max_speed_hz           = 500000,
 446                 .mode                   = SPI_MODE_3,
 447         },
 448 #endif
 449 };
 450
 451 static int __init overo_spi_init(void)
 452 {
 453         overo_ads7846_init();
 454         spi_register_board_info(overo_spi_board_info,
 455                         ARRAY_SIZE(overo_spi_board_info));
 456         return 0;
 457 }
 458
 459 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 460         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 461         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 462         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 463         .phy_reset  = true,
 464         .reset_gpio_port[0]  = -EINVAL,
 465         .reset_gpio_port[1]  = OVERO_GPIO_USBH_NRESET,
 466         .reset_gpio_port[2]  = -EINVAL
 467 };
 468
 469 #ifdef CONFIG_OMAP_MUX
 470 static struct omap_board_mux board_mux[] __initdata = {
 471         { .reg_offset = OMAP_MUX_TERMINATOR },
 472 };
 473 #endif
 474
 475 static struct gpio overo_bt_gpios[] __initdata = {
 476         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
 477         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 478 };
 479
 480 static struct regulator_consumer_supply dummy_supplies[] = {
 481         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 482         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 483         REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
 484         REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
 485 };
 486
 487 static void __init overo_init(void)
 488 {
 489         int ret;
 490
 491         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 492         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 493         overo_i2c_init();
 494         omap_hsmmc_init(mmc);
 495         omap_display_init(&overo_dss_data);
 496         omap_serial_init();
 497         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
 498                                   mt46h32m32lf6_sdrc_params);
 499         omap_nand_flash_init(0, overo_nand_partitions,
 500                              ARRAY_SIZE(overo_nand_partitions));
 501         usb_musb_init(NULL);
 502         usbhs_init(&usbhs_bdata);
 503         overo_spi_init();
 504         overo_init_smsc911x();
 505         overo_display_init();
 506         overo_init_led();
 507         overo_init_keys();
 508
 509         /* Ensure SDRC pins are mux'd for self-refresh */
 510         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 511         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 512
 513         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
 514                                "OVERO_GPIO_W2W_NRESET");
 515         if (ret == 0) {
 516                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
 517                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
 518                 udelay(10);
 519                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
 520         } else {
 521                 printk(KERN_ERR "could not obtain gpio for "
 522                                         "OVERO_GPIO_W2W_NRESET\n");
 523         }
 524
 525         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
 526         if (ret) {
 527                 pr_err("%s: could not obtain BT gpios\n", __func__);
 528         } else {
 529                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
 530                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
 531                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
 532                 mdelay(6);
 533                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
 534         }
 535
 536         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
 537                                "OVERO_GPIO_USBH_CPEN");
 538         if (ret == 0)
 539                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
 540         else
 541                 printk(KERN_ERR "could not obtain gpio for "
 542                                         "OVERO_GPIO_USBH_CPEN\n");
 543 }
 544
 545 MACHINE_START(OVERO, "Gumstix Overo")
 546         .atag_offset    = 0x100,
 547         .reserve        = omap_reserve,
 548         .map_io         = omap3_map_io,
 549         .init_early     = omap35xx_init_early,
 550         .init_irq       = omap3_init_irq,
 551         .handle_irq     = omap3_intc_handle_irq,
 552         .init_machine   = overo_init,
 553         .init_late      = omap35xx_init_late,
 554         .timer          = &omap3_timer,
 555         .restart        = omap_prcm_restart,
 556 MACHINE_END