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 <plat/board.h>
  46 #include <plat/common.h>
  47 #include <video/omapdss.h>
  48 #include <video/omap-panel-generic-dpi.h>
  49 #include <video/omap-panel-dvi.h>
  50 #include <plat/gpmc.h>
  51 #include <mach/hardware.h>
  52 #include <plat/nand.h>
  53 #include <plat/mcspi.h>
  54 #include <plat/mux.h>
  55 #include <plat/usb.h>
  56
  57 #include "mux.h"
  58 #include "sdram-micron-mt46h32m32lf-6.h"
  59 #include "hsmmc.h"
  60 #include "common-board-devices.h"
  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 <plat/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 int overo_panel_enable_dvi(struct omap_dss_device *dssdev)
 171 {
 172         if (lcd_enabled) {
 173                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 174                 return -EINVAL;
 175         }
 176         dvi_enabled = 1;
 177
 178         return 0;
 179 }
 180
 181 static void overo_panel_disable_dvi(struct omap_dss_device *dssdev)
 182 {
 183         dvi_enabled = 0;
 184 }
 185
 186 static struct panel_dvi_platform_data dvi_panel = {
 187         .platform_enable        = overo_panel_enable_dvi,
 188         .platform_disable       = overo_panel_disable_dvi,
 189         .i2c_bus_num            = 3,
 190 };
 191
 192 static struct omap_dss_device overo_dvi_device = {
 193         .name                   = "dvi",
 194         .type                   = OMAP_DISPLAY_TYPE_DPI,
 195         .driver_name            = "dvi",
 196         .data                   = &dvi_panel,
 197         .phy.dpi.data_lines     = 24,
 198 };
 199
 200 static struct omap_dss_device overo_tv_device = {
 201         .name = "tv",
 202         .driver_name = "venc",
 203         .type = OMAP_DISPLAY_TYPE_VENC,
 204         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 205 };
 206
 207 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
 208 {
 209         if (dvi_enabled) {
 210                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 211                 return -EINVAL;
 212         }
 213
 214         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
 215         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
 216         lcd_enabled = 1;
 217         return 0;
 218 }
 219
 220 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
 221 {
 222         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
 223         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
 224         lcd_enabled = 0;
 225 }
 226
 227 static struct panel_generic_dpi_data lcd43_panel = {
 228         .name                   = "samsung_lte430wq_f0c",
 229         .platform_enable        = overo_panel_enable_lcd,
 230         .platform_disable       = overo_panel_disable_lcd,
 231 };
 232
 233 static struct omap_dss_device overo_lcd43_device = {
 234         .name                   = "lcd43",
 235         .type                   = OMAP_DISPLAY_TYPE_DPI,
 236         .driver_name            = "generic_dpi_panel",
 237         .data                   = &lcd43_panel,
 238         .phy.dpi.data_lines     = 24,
 239 };
 240
 241 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 242         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 243 static struct omap_dss_device overo_lcd35_device = {
 244         .type                   = OMAP_DISPLAY_TYPE_DPI,
 245         .name                   = "lcd35",
 246         .driver_name            = "lgphilips_lb035q02_panel",
 247         .phy.dpi.data_lines     = 24,
 248         .platform_enable        = overo_panel_enable_lcd,
 249         .platform_disable       = overo_panel_disable_lcd,
 250 };
 251 #endif
 252
 253 static struct omap_dss_device *overo_dss_devices[] = {
 254         &overo_dvi_device,
 255         &overo_tv_device,
 256 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 257         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 258         &overo_lcd35_device,
 259 #endif
 260         &overo_lcd43_device,
 261 };
 262
 263 static struct omap_dss_board_info overo_dss_data = {
 264         .num_devices    = ARRAY_SIZE(overo_dss_devices),
 265         .devices        = overo_dss_devices,
 266         .default_device = &overo_dvi_device,
 267 };
 268
 269 static struct mtd_partition overo_nand_partitions[] = {
 270         {
 271                 .name           = "xloader",
 272                 .offset         = 0,                    /* Offset = 0x00000 */
 273                 .size           = 4 * NAND_BLOCK_SIZE,
 274                 .mask_flags     = MTD_WRITEABLE
 275         },
 276         {
 277                 .name           = "uboot",
 278                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 279                 .size           = 14 * NAND_BLOCK_SIZE,
 280         },
 281         {
 282                 .name           = "uboot environment",
 283                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
 284                 .size           = 2 * NAND_BLOCK_SIZE,
 285         },
 286         {
 287                 .name           = "linux",
 288                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 289                 .size           = 32 * NAND_BLOCK_SIZE,
 290         },
 291         {
 292                 .name           = "rootfs",
 293                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 294                 .size           = MTDPART_SIZ_FULL,
 295         },
 296 };
 297
 298 static struct omap2_hsmmc_info mmc[] = {
 299         {
 300                 .mmc            = 1,
 301                 .caps           = MMC_CAP_4_BIT_DATA,
 302                 .gpio_cd        = -EINVAL,
 303                 .gpio_wp        = -EINVAL,
 304         },
 305         {
 306                 .mmc            = 2,
 307                 .caps           = MMC_CAP_4_BIT_DATA,
 308                 .gpio_cd        = -EINVAL,
 309                 .gpio_wp        = -EINVAL,
 310                 .transceiver    = true,
 311                 .ocr_mask       = 0x00100000,   /* 3.3V */
 312         },
 313         {}      /* Terminator */
 314 };
 315
 316 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
 317         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 318 };
 319
 320 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 321 #include <linux/leds.h>
 322
 323 static struct gpio_led gpio_leds[] = {
 324         {
 325                 .name                   = "overo:red:gpio21",
 326                 .default_trigger        = "heartbeat",
 327                 .gpio                   = 21,
 328                 .active_low             = true,
 329         },
 330         {
 331                 .name                   = "overo:blue:gpio22",
 332                 .default_trigger        = "none",
 333                 .gpio                   = 22,
 334                 .active_low             = true,
 335         },
 336         {
 337                 .name                   = "overo:blue:COM",
 338                 .default_trigger        = "mmc0",
 339                 .gpio                   = -EINVAL,      /* gets replaced */
 340                 .active_low             = true,
 341         },
 342 };
 343
 344 static struct gpio_led_platform_data gpio_leds_pdata = {
 345         .leds           = gpio_leds,
 346         .num_leds       = ARRAY_SIZE(gpio_leds),
 347 };
 348
 349 static struct platform_device gpio_leds_device = {
 350         .name   = "leds-gpio",
 351         .id     = -1,
 352         .dev    = {
 353                 .platform_data  = &gpio_leds_pdata,
 354         },
 355 };
 356
 357 static void __init overo_init_led(void)
 358 {
 359         platform_device_register(&gpio_leds_device);
 360 }
 361
 362 #else
 363 static inline void __init overo_init_led(void) { return; }
 364 #endif
 365
 366 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 367 #include <linux/input.h>
 368 #include <linux/gpio_keys.h>
 369
 370 static struct gpio_keys_button gpio_buttons[] = {
 371         {
 372                 .code                   = BTN_0,
 373                 .gpio                   = 23,
 374                 .desc                   = "button0",
 375                 .wakeup                 = 1,
 376         },
 377         {
 378                 .code                   = BTN_1,
 379                 .gpio                   = 14,
 380                 .desc                   = "button1",
 381                 .wakeup                 = 1,
 382         },
 383 };
 384
 385 static struct gpio_keys_platform_data gpio_keys_pdata = {
 386         .buttons        = gpio_buttons,
 387         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 388 };
 389
 390 static struct platform_device gpio_keys_device = {
 391         .name   = "gpio-keys",
 392         .id     = -1,
 393         .dev    = {
 394                 .platform_data  = &gpio_keys_pdata,
 395         },
 396 };
 397
 398 static void __init overo_init_keys(void)
 399 {
 400         platform_device_register(&gpio_keys_device);
 401 }
 402
 403 #else
 404 static inline void __init overo_init_keys(void) { return; }
 405 #endif
 406
 407 static int overo_twl_gpio_setup(struct device *dev,
 408                 unsigned gpio, unsigned ngpio)
 409 {
 410         omap2_hsmmc_init(mmc);
 411
 412 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 413         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 414         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 415 #endif
 416
 417         return 0;
 418 }
 419
 420 static struct twl4030_gpio_platform_data overo_gpio_data = {
 421         .gpio_base      = OMAP_MAX_GPIO_LINES,
 422         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 423         .irq_end        = TWL4030_GPIO_IRQ_END,
 424         .use_leds       = true,
 425         .setup          = overo_twl_gpio_setup,
 426 };
 427
 428 static struct regulator_init_data overo_vmmc1 = {
 429         .constraints = {
 430                 .min_uV                 = 1850000,
 431                 .max_uV                 = 3150000,
 432                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 433                                         | REGULATOR_MODE_STANDBY,
 434                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 435                                         | REGULATOR_CHANGE_MODE
 436                                         | REGULATOR_CHANGE_STATUS,
 437         },
 438         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
 439         .consumer_supplies      = overo_vmmc1_supply,
 440 };
 441
 442 static struct twl4030_platform_data overo_twldata = {
 443         .gpio           = &overo_gpio_data,
 444         .vmmc1          = &overo_vmmc1,
 445 };
 446
 447 static int __init overo_i2c_init(void)
 448 {
 449         omap3_pmic_get_config(&overo_twldata,
 450                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
 451                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 452
 453         overo_twldata.vpll2->constraints.name = "VDVI";
 454
 455         omap3_pmic_init("tps65950", &overo_twldata);
 456         /* i2c2 pins are used for gpio */
 457         omap_register_i2c_bus(3, 400, NULL, 0);
 458         return 0;
 459 }
 460
 461 static struct spi_board_info overo_spi_board_info[] __initdata = {
 462 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 463         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 464         {
 465                 .modalias               = "lgphilips_lb035q02_panel-spi",
 466                 .bus_num                = 1,
 467                 .chip_select            = 1,
 468                 .max_speed_hz           = 500000,
 469                 .mode                   = SPI_MODE_3,
 470         },
 471 #endif
 472 };
 473
 474 static int __init overo_spi_init(void)
 475 {
 476         overo_ads7846_init();
 477         spi_register_board_info(overo_spi_board_info,
 478                         ARRAY_SIZE(overo_spi_board_info));
 479         return 0;
 480 }
 481
 482 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 483         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 484         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 485         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 486         .phy_reset  = true,
 487         .reset_gpio_port[0]  = -EINVAL,
 488         .reset_gpio_port[1]  = OVERO_GPIO_USBH_NRESET,
 489         .reset_gpio_port[2]  = -EINVAL
 490 };
 491
 492 #ifdef CONFIG_OMAP_MUX
 493 static struct omap_board_mux board_mux[] __initdata = {
 494         { .reg_offset = OMAP_MUX_TERMINATOR },
 495 };
 496 #endif
 497
 498 static struct gpio overo_bt_gpios[] __initdata = {
 499         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
 500         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 501 };
 502
 503 static void __init overo_init(void)
 504 {
 505         int ret;
 506
 507         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 508         overo_i2c_init();
 509         omap_display_init(&overo_dss_data);
 510         omap_serial_init();
 511         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
 512                                   mt46h32m32lf6_sdrc_params);
 513         omap_nand_flash_init(0, overo_nand_partitions,
 514                              ARRAY_SIZE(overo_nand_partitions));
 515         usb_musb_init(NULL);
 516         usbhs_init(&usbhs_bdata);
 517         overo_spi_init();
 518         overo_init_smsc911x();
 519         overo_display_init();
 520         overo_init_led();
 521         overo_init_keys();
 522
 523         /* Ensure SDRC pins are mux'd for self-refresh */
 524         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 525         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 526
 527         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
 528                                "OVERO_GPIO_W2W_NRESET");
 529         if (ret == 0) {
 530                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
 531                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
 532                 udelay(10);
 533                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
 534         } else {
 535                 printk(KERN_ERR "could not obtain gpio for "
 536                                         "OVERO_GPIO_W2W_NRESET\n");
 537         }
 538
 539         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
 540         if (ret) {
 541                 pr_err("%s: could not obtain BT gpios\n", __func__);
 542         } else {
 543                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
 544                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
 545                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
 546                 mdelay(6);
 547                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
 548         }
 549
 550         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
 551                                "OVERO_GPIO_USBH_CPEN");
 552         if (ret == 0)
 553                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
 554         else
 555                 printk(KERN_ERR "could not obtain gpio for "
 556                                         "OVERO_GPIO_USBH_CPEN\n");
 557 }
 558
 559 MACHINE_START(OVERO, "Gumstix Overo")
 560         .atag_offset    = 0x100,
 561         .reserve        = omap_reserve,
 562         .map_io         = omap3_map_io,
 563         .init_early     = omap35xx_init_early,
 564         .init_irq       = omap3_init_irq,
 565         .init_machine   = overo_init,
 566         .timer          = &omap3_timer,
 567 MACHINE_END