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 <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 int overo_panel_enable_dvi(struct omap_dss_device *dssdev)
 170 {
 171         if (lcd_enabled) {
 172                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 173                 return -EINVAL;
 174         }
 175         dvi_enabled = 1;
 176
 177         return 0;
 178 }
 179
 180 static void overo_panel_disable_dvi(struct omap_dss_device *dssdev)
 181 {
 182         dvi_enabled = 0;
 183 }
 184
 185 static struct panel_generic_dpi_data dvi_panel = {
 186         .name                   = "generic",
 187         .platform_enable        = overo_panel_enable_dvi,
 188         .platform_disable       = overo_panel_disable_dvi,
 189 };
 190
 191 static struct omap_dss_device overo_dvi_device = {
 192         .name                   = "dvi",
 193         .type                   = OMAP_DISPLAY_TYPE_DPI,
 194         .driver_name            = "generic_dpi_panel",
 195         .data                   = &dvi_panel,
 196         .phy.dpi.data_lines     = 24,
 197 };
 198
 199 static struct omap_dss_device overo_tv_device = {
 200         .name = "tv",
 201         .driver_name = "venc",
 202         .type = OMAP_DISPLAY_TYPE_VENC,
 203         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 204 };
 205
 206 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
 207 {
 208         if (dvi_enabled) {
 209                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 210                 return -EINVAL;
 211         }
 212
 213         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
 214         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
 215         lcd_enabled = 1;
 216         return 0;
 217 }
 218
 219 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
 220 {
 221         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
 222         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
 223         lcd_enabled = 0;
 224 }
 225
 226 static struct panel_generic_dpi_data lcd43_panel = {
 227         .name                   = "samsung_lte430wq_f0c",
 228         .platform_enable        = overo_panel_enable_lcd,
 229         .platform_disable       = overo_panel_disable_lcd,
 230 };
 231
 232 static struct omap_dss_device overo_lcd43_device = {
 233         .name                   = "lcd43",
 234         .type                   = OMAP_DISPLAY_TYPE_DPI,
 235         .driver_name            = "generic_dpi_panel",
 236         .data                   = &lcd43_panel,
 237         .phy.dpi.data_lines     = 24,
 238 };
 239
 240 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 241         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 242 static struct omap_dss_device overo_lcd35_device = {
 243         .type                   = OMAP_DISPLAY_TYPE_DPI,
 244         .name                   = "lcd35",
 245         .driver_name            = "lgphilips_lb035q02_panel",
 246         .phy.dpi.data_lines     = 24,
 247         .platform_enable        = overo_panel_enable_lcd,
 248         .platform_disable       = overo_panel_disable_lcd,
 249 };
 250 #endif
 251
 252 static struct omap_dss_device *overo_dss_devices[] = {
 253         &overo_dvi_device,
 254         &overo_tv_device,
 255 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 256         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 257         &overo_lcd35_device,
 258 #endif
 259         &overo_lcd43_device,
 260 };
 261
 262 static struct omap_dss_board_info overo_dss_data = {
 263         .num_devices    = ARRAY_SIZE(overo_dss_devices),
 264         .devices        = overo_dss_devices,
 265         .default_device = &overo_dvi_device,
 266 };
 267
 268 static struct mtd_partition overo_nand_partitions[] = {
 269         {
 270                 .name           = "xloader",
 271                 .offset         = 0,                    /* Offset = 0x00000 */
 272                 .size           = 4 * NAND_BLOCK_SIZE,
 273                 .mask_flags     = MTD_WRITEABLE
 274         },
 275         {
 276                 .name           = "uboot",
 277                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 278                 .size           = 14 * NAND_BLOCK_SIZE,
 279         },
 280         {
 281                 .name           = "uboot environment",
 282                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
 283                 .size           = 2 * NAND_BLOCK_SIZE,
 284         },
 285         {
 286                 .name           = "linux",
 287                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 288                 .size           = 32 * NAND_BLOCK_SIZE,
 289         },
 290         {
 291                 .name           = "rootfs",
 292                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 293                 .size           = MTDPART_SIZ_FULL,
 294         },
 295 };
 296
 297 static struct omap2_hsmmc_info mmc[] = {
 298         {
 299                 .mmc            = 1,
 300                 .caps           = MMC_CAP_4_BIT_DATA,
 301                 .gpio_cd        = -EINVAL,
 302                 .gpio_wp        = -EINVAL,
 303         },
 304         {
 305                 .mmc            = 2,
 306                 .caps           = MMC_CAP_4_BIT_DATA,
 307                 .gpio_cd        = -EINVAL,
 308                 .gpio_wp        = -EINVAL,
 309                 .transceiver    = true,
 310                 .ocr_mask       = 0x00100000,   /* 3.3V */
 311         },
 312         {}      /* Terminator */
 313 };
 314
 315 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
 316         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 317 };
 318
 319 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 320 #include <linux/leds.h>
 321
 322 static struct gpio_led gpio_leds[] = {
 323         {
 324                 .name                   = "overo:red:gpio21",
 325                 .default_trigger        = "heartbeat",
 326                 .gpio                   = 21,
 327                 .active_low             = true,
 328         },
 329         {
 330                 .name                   = "overo:blue:gpio22",
 331                 .default_trigger        = "none",
 332                 .gpio                   = 22,
 333                 .active_low             = true,
 334         },
 335         {
 336                 .name                   = "overo:blue:COM",
 337                 .default_trigger        = "mmc0",
 338                 .gpio                   = -EINVAL,      /* gets replaced */
 339                 .active_low             = true,
 340         },
 341 };
 342
 343 static struct gpio_led_platform_data gpio_leds_pdata = {
 344         .leds           = gpio_leds,
 345         .num_leds       = ARRAY_SIZE(gpio_leds),
 346 };
 347
 348 static struct platform_device gpio_leds_device = {
 349         .name   = "leds-gpio",
 350         .id     = -1,
 351         .dev    = {
 352                 .platform_data  = &gpio_leds_pdata,
 353         },
 354 };
 355
 356 static void __init overo_init_led(void)
 357 {
 358         platform_device_register(&gpio_leds_device);
 359 }
 360
 361 #else
 362 static inline void __init overo_init_led(void) { return; }
 363 #endif
 364
 365 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 366 #include <linux/input.h>
 367 #include <linux/gpio_keys.h>
 368
 369 static struct gpio_keys_button gpio_buttons[] = {
 370         {
 371                 .code                   = BTN_0,
 372                 .gpio                   = 23,
 373                 .desc                   = "button0",
 374                 .wakeup                 = 1,
 375         },
 376         {
 377                 .code                   = BTN_1,
 378                 .gpio                   = 14,
 379                 .desc                   = "button1",
 380                 .wakeup                 = 1,
 381         },
 382 };
 383
 384 static struct gpio_keys_platform_data gpio_keys_pdata = {
 385         .buttons        = gpio_buttons,
 386         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 387 };
 388
 389 static struct platform_device gpio_keys_device = {
 390         .name   = "gpio-keys",
 391         .id     = -1,
 392         .dev    = {
 393                 .platform_data  = &gpio_keys_pdata,
 394         },
 395 };
 396
 397 static void __init overo_init_keys(void)
 398 {
 399         platform_device_register(&gpio_keys_device);
 400 }
 401
 402 #else
 403 static inline void __init overo_init_keys(void) { return; }
 404 #endif
 405
 406 static int overo_twl_gpio_setup(struct device *dev,
 407                 unsigned gpio, unsigned ngpio)
 408 {
 409         omap2_hsmmc_init(mmc);
 410
 411 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 412         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 413         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 414 #endif
 415
 416         return 0;
 417 }
 418
 419 static struct twl4030_gpio_platform_data overo_gpio_data = {
 420         .gpio_base      = OMAP_MAX_GPIO_LINES,
 421         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 422         .irq_end        = TWL4030_GPIO_IRQ_END,
 423         .use_leds       = true,
 424         .setup          = overo_twl_gpio_setup,
 425 };
 426
 427 static struct regulator_init_data overo_vmmc1 = {
 428         .constraints = {
 429                 .min_uV                 = 1850000,
 430                 .max_uV                 = 3150000,
 431                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 432                                         | REGULATOR_MODE_STANDBY,
 433                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 434                                         | REGULATOR_CHANGE_MODE
 435                                         | REGULATOR_CHANGE_STATUS,
 436         },
 437         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
 438         .consumer_supplies      = overo_vmmc1_supply,
 439 };
 440
 441 static struct twl4030_platform_data overo_twldata = {
 442         .gpio           = &overo_gpio_data,
 443         .vmmc1          = &overo_vmmc1,
 444 };
 445
 446 static int __init overo_i2c_init(void)
 447 {
 448         omap3_pmic_get_config(&overo_twldata,
 449                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
 450                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 451
 452         overo_twldata.vpll2->constraints.name = "VDVI";
 453
 454         omap3_pmic_init("tps65950", &overo_twldata);
 455         /* i2c2 pins are used for gpio */
 456         omap_register_i2c_bus(3, 400, NULL, 0);
 457         return 0;
 458 }
 459
 460 static struct spi_board_info overo_spi_board_info[] __initdata = {
 461 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 462         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 463         {
 464                 .modalias               = "lgphilips_lb035q02_panel-spi",
 465                 .bus_num                = 1,
 466                 .chip_select            = 1,
 467                 .max_speed_hz           = 500000,
 468                 .mode                   = SPI_MODE_3,
 469         },
 470 #endif
 471 };
 472
 473 static int __init overo_spi_init(void)
 474 {
 475         overo_ads7846_init();
 476         spi_register_board_info(overo_spi_board_info,
 477                         ARRAY_SIZE(overo_spi_board_info));
 478         return 0;
 479 }
 480
 481 static void __init overo_init_early(void)
 482 {
 483         omap2_init_common_infrastructure();
 484         omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
 485                                   mt46h32m32lf6_sdrc_params);
 486 }
 487
 488 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 489         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 490         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 491         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 492         .phy_reset  = true,
 493         .reset_gpio_port[0]  = -EINVAL,
 494         .reset_gpio_port[1]  = OVERO_GPIO_USBH_NRESET,
 495         .reset_gpio_port[2]  = -EINVAL
 496 };
 497
 498 #ifdef CONFIG_OMAP_MUX
 499 static struct omap_board_mux board_mux[] __initdata = {
 500         { .reg_offset = OMAP_MUX_TERMINATOR },
 501 };
 502 #endif
 503
 504 static struct gpio overo_bt_gpios[] __initdata = {
 505         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
 506         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 507 };
 508
 509 static void __init overo_init(void)
 510 {
 511         int ret;
 512
 513         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 514         overo_i2c_init();
 515         omap_display_init(&overo_dss_data);
 516         omap_serial_init();
 517         omap_nand_flash_init(0, overo_nand_partitions,
 518                              ARRAY_SIZE(overo_nand_partitions));
 519         usb_musb_init(NULL);
 520         usbhs_init(&usbhs_bdata);
 521         overo_spi_init();
 522         overo_init_smsc911x();
 523         overo_display_init();
 524         overo_init_led();
 525         overo_init_keys();
 526
 527         /* Ensure SDRC pins are mux'd for self-refresh */
 528         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 529         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 530
 531         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
 532                                "OVERO_GPIO_W2W_NRESET");
 533         if (ret == 0) {
 534                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
 535                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
 536                 udelay(10);
 537                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
 538         } else {
 539                 printk(KERN_ERR "could not obtain gpio for "
 540                                         "OVERO_GPIO_W2W_NRESET\n");
 541         }
 542
 543         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
 544         if (ret) {
 545                 pr_err("%s: could not obtain BT gpios\n", __func__);
 546         } else {
 547                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
 548                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
 549                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
 550                 mdelay(6);
 551                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
 552         }
 553
 554         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
 555                                "OVERO_GPIO_USBH_CPEN");
 556         if (ret == 0)
 557                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
 558         else
 559                 printk(KERN_ERR "could not obtain gpio for "
 560                                         "OVERO_GPIO_USBH_CPEN\n");
 561 }
 562
 563 MACHINE_START(OVERO, "Gumstix Overo")
 564         .boot_params    = 0x80000100,
 565         .reserve        = omap_reserve,
 566         .map_io         = omap3_map_io,
 567         .init_early     = overo_init_early,
 568         .init_irq       = omap3_init_irq,
 569         .init_machine   = overo_init,
 570         .timer          = &omap3_timer,
 571 MACHINE_END