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