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 #define OVERO_GPIO_LCD_EN 144
 149 #define OVERO_GPIO_LCD_BL 145
 150
 151 static struct tfp410_platform_data dvi_panel = {
 152         .i2c_bus_num            = 3,
 153         .power_down_gpio        = -1,
 154 };
 155
 156 static struct omap_dss_device overo_dvi_device = {
 157         .name                   = "dvi",
 158         .type                   = OMAP_DISPLAY_TYPE_DPI,
 159         .driver_name            = "tfp410",
 160         .data                   = &dvi_panel,
 161         .phy.dpi.data_lines     = 24,
 162 };
 163
 164 static struct omap_dss_device overo_tv_device = {
 165         .name = "tv",
 166         .driver_name = "venc",
 167         .type = OMAP_DISPLAY_TYPE_VENC,
 168         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 169 };
 170
 171 static struct panel_generic_dpi_data lcd43_panel = {
 172         .name                   = "samsung_lte430wq_f0c",
 173         .num_gpios              = 2,
 174         .gpios                  = {
 175                 OVERO_GPIO_LCD_EN,
 176                 OVERO_GPIO_LCD_BL
 177         },
 178 };
 179
 180 static struct omap_dss_device overo_lcd43_device = {
 181         .name                   = "lcd43",
 182         .type                   = OMAP_DISPLAY_TYPE_DPI,
 183         .driver_name            = "generic_dpi_panel",
 184         .data                   = &lcd43_panel,
 185         .phy.dpi.data_lines     = 24,
 186 };
 187
 188 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 189         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 190 static struct panel_generic_dpi_data lcd35_panel = {
 191         .num_gpios              = 2,
 192         .gpios                  = {
 193                 OVERO_GPIO_LCD_EN,
 194                 OVERO_GPIO_LCD_BL
 195         },
 196 };
 197
 198 static struct omap_dss_device overo_lcd35_device = {
 199         .type                   = OMAP_DISPLAY_TYPE_DPI,
 200         .name                   = "lcd35",
 201         .driver_name            = "lgphilips_lb035q02_panel",
 202         .phy.dpi.data_lines     = 24,
 203         .data                   = &lcd35_panel,
 204 };
 205 #endif
 206
 207 static struct omap_dss_device *overo_dss_devices[] = {
 208         &overo_dvi_device,
 209         &overo_tv_device,
 210 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 211         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 212         &overo_lcd35_device,
 213 #endif
 214         &overo_lcd43_device,
 215 };
 216
 217 static struct omap_dss_board_info overo_dss_data = {
 218         .num_devices    = ARRAY_SIZE(overo_dss_devices),
 219         .devices        = overo_dss_devices,
 220         .default_device = &overo_dvi_device,
 221 };
 222
 223 static struct mtd_partition overo_nand_partitions[] = {
 224         {
 225                 .name           = "xloader",
 226                 .offset         = 0,                    /* Offset = 0x00000 */
 227                 .size           = 4 * NAND_BLOCK_SIZE,
 228                 .mask_flags     = MTD_WRITEABLE
 229         },
 230         {
 231                 .name           = "uboot",
 232                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 233                 .size           = 14 * NAND_BLOCK_SIZE,
 234         },
 235         {
 236                 .name           = "uboot environment",
 237                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
 238                 .size           = 2 * NAND_BLOCK_SIZE,
 239         },
 240         {
 241                 .name           = "linux",
 242                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 243                 .size           = 32 * NAND_BLOCK_SIZE,
 244         },
 245         {
 246                 .name           = "rootfs",
 247                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 248                 .size           = MTDPART_SIZ_FULL,
 249         },
 250 };
 251
 252 static struct omap2_hsmmc_info mmc[] = {
 253         {
 254                 .mmc            = 1,
 255                 .caps           = MMC_CAP_4_BIT_DATA,
 256                 .gpio_cd        = -EINVAL,
 257                 .gpio_wp        = -EINVAL,
 258         },
 259         {
 260                 .mmc            = 2,
 261                 .caps           = MMC_CAP_4_BIT_DATA,
 262                 .gpio_cd        = -EINVAL,
 263                 .gpio_wp        = -EINVAL,
 264                 .transceiver    = true,
 265                 .ocr_mask       = 0x00100000,   /* 3.3V */
 266         },
 267         {}      /* Terminator */
 268 };
 269
 270 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
 271         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 272 };
 273
 274 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 275 #include <linux/leds.h>
 276
 277 static struct gpio_led gpio_leds[] = {
 278         {
 279                 .name                   = "overo:red:gpio21",
 280                 .default_trigger        = "heartbeat",
 281                 .gpio                   = 21,
 282                 .active_low             = true,
 283         },
 284         {
 285                 .name                   = "overo:blue:gpio22",
 286                 .default_trigger        = "none",
 287                 .gpio                   = 22,
 288                 .active_low             = true,
 289         },
 290         {
 291                 .name                   = "overo:blue:COM",
 292                 .default_trigger        = "mmc0",
 293                 .gpio                   = -EINVAL,      /* gets replaced */
 294                 .active_low             = true,
 295         },
 296 };
 297
 298 static struct gpio_led_platform_data gpio_leds_pdata = {
 299         .leds           = gpio_leds,
 300         .num_leds       = ARRAY_SIZE(gpio_leds),
 301 };
 302
 303 static struct platform_device gpio_leds_device = {
 304         .name   = "leds-gpio",
 305         .id     = -1,
 306         .dev    = {
 307                 .platform_data  = &gpio_leds_pdata,
 308         },
 309 };
 310
 311 static void __init overo_init_led(void)
 312 {
 313         platform_device_register(&gpio_leds_device);
 314 }
 315
 316 #else
 317 static inline void __init overo_init_led(void) { return; }
 318 #endif
 319
 320 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 321 #include <linux/input.h>
 322 #include <linux/gpio_keys.h>
 323
 324 static struct gpio_keys_button gpio_buttons[] = {
 325         {
 326                 .code                   = BTN_0,
 327                 .gpio                   = 23,
 328                 .desc                   = "button0",
 329                 .wakeup                 = 1,
 330         },
 331         {
 332                 .code                   = BTN_1,
 333                 .gpio                   = 14,
 334                 .desc                   = "button1",
 335                 .wakeup                 = 1,
 336         },
 337 };
 338
 339 static struct gpio_keys_platform_data gpio_keys_pdata = {
 340         .buttons        = gpio_buttons,
 341         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 342 };
 343
 344 static struct platform_device gpio_keys_device = {
 345         .name   = "gpio-keys",
 346         .id     = -1,
 347         .dev    = {
 348                 .platform_data  = &gpio_keys_pdata,
 349         },
 350 };
 351
 352 static void __init overo_init_keys(void)
 353 {
 354         platform_device_register(&gpio_keys_device);
 355 }
 356
 357 #else
 358 static inline void __init overo_init_keys(void) { return; }
 359 #endif
 360
 361 static int overo_twl_gpio_setup(struct device *dev,
 362                 unsigned gpio, unsigned ngpio)
 363 {
 364 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 365         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 366         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 367 #endif
 368
 369         return 0;
 370 }
 371
 372 static struct twl4030_gpio_platform_data overo_gpio_data = {
 373         .use_leds       = true,
 374         .setup          = overo_twl_gpio_setup,
 375 };
 376
 377 static struct regulator_init_data overo_vmmc1 = {
 378         .constraints = {
 379                 .min_uV                 = 1850000,
 380                 .max_uV                 = 3150000,
 381                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 382                                         | REGULATOR_MODE_STANDBY,
 383                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 384                                         | REGULATOR_CHANGE_MODE
 385                                         | REGULATOR_CHANGE_STATUS,
 386         },
 387         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
 388         .consumer_supplies      = overo_vmmc1_supply,
 389 };
 390
 391 static struct twl4030_platform_data overo_twldata = {
 392         .gpio           = &overo_gpio_data,
 393         .vmmc1          = &overo_vmmc1,
 394 };
 395
 396 static int __init overo_i2c_init(void)
 397 {
 398         omap3_pmic_get_config(&overo_twldata,
 399                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
 400                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 401
 402         overo_twldata.vpll2->constraints.name = "VDVI";
 403
 404         omap3_pmic_init("tps65950", &overo_twldata);
 405         /* i2c2 pins are used for gpio */
 406         omap_register_i2c_bus(3, 400, NULL, 0);
 407         return 0;
 408 }
 409
 410 static struct spi_board_info overo_spi_board_info[] __initdata = {
 411 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 412         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 413         {
 414                 .modalias               = "lgphilips_lb035q02_panel-spi",
 415                 .bus_num                = 1,
 416                 .chip_select            = 1,
 417                 .max_speed_hz           = 500000,
 418                 .mode                   = SPI_MODE_3,
 419         },
 420 #endif
 421 };
 422
 423 static int __init overo_spi_init(void)
 424 {
 425         overo_ads7846_init();
 426         spi_register_board_info(overo_spi_board_info,
 427                         ARRAY_SIZE(overo_spi_board_info));
 428         return 0;
 429 }
 430
 431 static struct usbhs_phy_data phy_data[] __initdata = {
 432         {
 433                 .port = 2,
 434                 .reset_gpio = OVERO_GPIO_USBH_NRESET,
 435                 .vcc_gpio = -EINVAL,
 436         },
 437 };
 438
 439 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
 440         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 441 };
 442
 443 #ifdef CONFIG_OMAP_MUX
 444 static struct omap_board_mux board_mux[] __initdata = {
 445         { .reg_offset = OMAP_MUX_TERMINATOR },
 446 };
 447 #endif
 448
 449 static struct gpio overo_bt_gpios[] __initdata = {
 450         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
 451         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 452 };
 453
 454 static struct regulator_consumer_supply dummy_supplies[] = {
 455         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 456         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 457         REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
 458         REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
 459 };
 460
 461 static void __init overo_init(void)
 462 {
 463         int ret;
 464
 465         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 466         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 467         overo_i2c_init();
 468         omap_hsmmc_init(mmc);
 469         omap_display_init(&overo_dss_data);
 470         omap_serial_init();
 471         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
 472                                   mt46h32m32lf6_sdrc_params);
 473         board_nand_init(overo_nand_partitions,
 474                         ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL);
 475         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 476         usb_musb_init(NULL);
 477
 478         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
 479         usbhs_init(&usbhs_bdata);
 480         overo_spi_init();
 481         overo_init_smsc911x();
 482         overo_init_led();
 483         overo_init_keys();
 484         omap_twl4030_audio_init("overo", NULL);
 485
 486         /* Ensure SDRC pins are mux'd for self-refresh */
 487         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 488         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 489
 490         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
 491                                "OVERO_GPIO_W2W_NRESET");
 492         if (ret == 0) {
 493                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
 494                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
 495                 udelay(10);
 496                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
 497         } else {
 498                 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
 499         }
 500
 501         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
 502         if (ret) {
 503                 pr_err("%s: could not obtain BT gpios\n", __func__);
 504         } else {
 505                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
 506                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
 507                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
 508                 mdelay(6);
 509                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
 510         }
 511
 512         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
 513                                "OVERO_GPIO_USBH_CPEN");
 514         if (ret == 0)
 515                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
 516         else
 517                 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
 518 }
 519
 520 MACHINE_START(OVERO, "Gumstix Overo")
 521         .atag_offset    = 0x100,
 522         .reserve        = omap_reserve,
 523         .map_io         = omap3_map_io,
 524         .init_early     = omap35xx_init_early,
 525         .init_irq       = omap3_init_irq,
 526         .handle_irq     = omap3_intc_handle_irq,
 527         .init_machine   = overo_init,
 528         .init_late      = omap35xx_init_late,
 529         .init_time      = omap3_sync32k_timer_init,
 530         .restart        = omap3xxx_restart,
 531 MACHINE_END