Pileus Git - ~andy/linux/blob - 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_SMSC911X_NRESET  64
  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     = OVERO_SMSC911X_NRESET,
 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 #define OVERO_GPIO_LCD_EN 144
 150 #define OVERO_GPIO_LCD_BL 145
 151
 152 static struct tfp410_platform_data dvi_panel = {
 153         .i2c_bus_num            = 3,
 154         .power_down_gpio        = -1,
 155 };
 156
 157 static struct omap_dss_device overo_dvi_device = {
 158         .name                   = "dvi",
 159         .type                   = OMAP_DISPLAY_TYPE_DPI,
 160         .driver_name            = "tfp410",
 161         .data                   = &dvi_panel,
 162         .phy.dpi.data_lines     = 24,
 163 };
 164
 165 static struct omap_dss_device overo_tv_device = {
 166         .name = "tv",
 167         .driver_name = "venc",
 168         .type = OMAP_DISPLAY_TYPE_VENC,
 169         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 170 };
 171
 172 static struct panel_generic_dpi_data lcd43_panel = {
 173         .name                   = "samsung_lte430wq_f0c",
 174         .num_gpios              = 2,
 175         .gpios                  = {
 176                 OVERO_GPIO_LCD_EN,
 177                 OVERO_GPIO_LCD_BL
 178         },
 179 };
 180
 181 static struct omap_dss_device overo_lcd43_device = {
 182         .name                   = "lcd43",
 183         .type                   = OMAP_DISPLAY_TYPE_DPI,
 184         .driver_name            = "generic_dpi_panel",
 185         .data                   = &lcd43_panel,
 186         .phy.dpi.data_lines     = 24,
 187 };
 188
 189 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 190         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 191 static struct panel_generic_dpi_data lcd35_panel = {
 192         .num_gpios              = 2,
 193         .gpios                  = {
 194                 OVERO_GPIO_LCD_EN,
 195                 OVERO_GPIO_LCD_BL
 196         },
 197 };
 198
 199 static struct omap_dss_device overo_lcd35_device = {
 200         .type                   = OMAP_DISPLAY_TYPE_DPI,
 201         .name                   = "lcd35",
 202         .driver_name            = "lgphilips_lb035q02_panel",
 203         .phy.dpi.data_lines     = 24,
 204         .data                   = &lcd35_panel,
 205 };
 206 #endif
 207
 208 static struct omap_dss_device *overo_dss_devices[] = {
 209         &overo_dvi_device,
 210         &overo_tv_device,
 211 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 212         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 213         &overo_lcd35_device,
 214 #endif
 215         &overo_lcd43_device,
 216 };
 217
 218 static struct omap_dss_board_info overo_dss_data = {
 219         .num_devices    = ARRAY_SIZE(overo_dss_devices),
 220         .devices        = overo_dss_devices,
 221         .default_device = &overo_dvi_device,
 222 };
 223
 224 static struct mtd_partition overo_nand_partitions[] = {
 225         {
 226                 .name           = "xloader",
 227                 .offset         = 0,                    /* Offset = 0x00000 */
 228                 .size           = 4 * NAND_BLOCK_SIZE,
 229                 .mask_flags     = MTD_WRITEABLE
 230         },
 231         {
 232                 .name           = "uboot",
 233                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 234                 .size           = 14 * NAND_BLOCK_SIZE,
 235         },
 236         {
 237                 .name           = "uboot environment",
 238                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
 239                 .size           = 2 * NAND_BLOCK_SIZE,
 240         },
 241         {
 242                 .name           = "linux",
 243                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 244                 .size           = 32 * NAND_BLOCK_SIZE,
 245         },
 246         {
 247                 .name           = "rootfs",
 248                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 249                 .size           = MTDPART_SIZ_FULL,
 250         },
 251 };
 252
 253 static struct omap2_hsmmc_info mmc[] = {
 254         {
 255                 .mmc            = 1,
 256                 .caps           = MMC_CAP_4_BIT_DATA,
 257                 .gpio_cd        = -EINVAL,
 258                 .gpio_wp        = -EINVAL,
 259         },
 260         {
 261                 .mmc            = 2,
 262                 .caps           = MMC_CAP_4_BIT_DATA,
 263                 .gpio_cd        = -EINVAL,
 264                 .gpio_wp        = -EINVAL,
 265                 .transceiver    = true,
 266                 .ocr_mask       = 0x00100000,   /* 3.3V */
 267         },
 268         {}      /* Terminator */
 269 };
 270
 271 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
 272         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 273 };
 274
 275 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 276 #include <linux/leds.h>
 277
 278 static struct gpio_led gpio_leds[] = {
 279         {
 280                 .name                   = "overo:red:gpio21",
 281                 .default_trigger        = "heartbeat",
 282                 .gpio                   = 21,
 283                 .active_low             = true,
 284         },
 285         {
 286                 .name                   = "overo:blue:gpio22",
 287                 .default_trigger        = "none",
 288                 .gpio                   = 22,
 289                 .active_low             = true,
 290         },
 291         {
 292                 .name                   = "overo:blue:COM",
 293                 .default_trigger        = "mmc0",
 294                 .gpio                   = -EINVAL,      /* gets replaced */
 295                 .active_low             = true,
 296         },
 297 };
 298
 299 static struct gpio_led_platform_data gpio_leds_pdata = {
 300         .leds           = gpio_leds,
 301         .num_leds       = ARRAY_SIZE(gpio_leds),
 302 };
 303
 304 static struct platform_device gpio_leds_device = {
 305         .name   = "leds-gpio",
 306         .id     = -1,
 307         .dev    = {
 308                 .platform_data  = &gpio_leds_pdata,
 309         },
 310 };
 311
 312 static void __init overo_init_led(void)
 313 {
 314         platform_device_register(&gpio_leds_device);
 315 }
 316
 317 #else
 318 static inline void __init overo_init_led(void) { return; }
 319 #endif
 320
 321 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 322 #include <linux/input.h>
 323 #include <linux/gpio_keys.h>
 324
 325 static struct gpio_keys_button gpio_buttons[] = {
 326         {
 327                 .code                   = BTN_0,
 328                 .gpio                   = 23,
 329                 .desc                   = "button0",
 330                 .wakeup                 = 1,
 331         },
 332         {
 333                 .code                   = BTN_1,
 334                 .gpio                   = 14,
 335                 .desc                   = "button1",
 336                 .wakeup                 = 1,
 337         },
 338 };
 339
 340 static struct gpio_keys_platform_data gpio_keys_pdata = {
 341         .buttons        = gpio_buttons,
 342         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 343 };
 344
 345 static struct platform_device gpio_keys_device = {
 346         .name   = "gpio-keys",
 347         .id     = -1,
 348         .dev    = {
 349                 .platform_data  = &gpio_keys_pdata,
 350         },
 351 };
 352
 353 static void __init overo_init_keys(void)
 354 {
 355         platform_device_register(&gpio_keys_device);
 356 }
 357
 358 #else
 359 static inline void __init overo_init_keys(void) { return; }
 360 #endif
 361
 362 static int overo_twl_gpio_setup(struct device *dev,
 363                 unsigned gpio, unsigned ngpio)
 364 {
 365 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 366         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 367         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 368 #endif
 369
 370         return 0;
 371 }
 372
 373 static struct twl4030_gpio_platform_data overo_gpio_data = {
 374         .use_leds       = true,
 375         .setup          = overo_twl_gpio_setup,
 376 };
 377
 378 static struct regulator_init_data overo_vmmc1 = {
 379         .constraints = {
 380                 .min_uV                 = 1850000,
 381                 .max_uV                 = 3150000,
 382                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 383                                         | REGULATOR_MODE_STANDBY,
 384                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 385                                         | REGULATOR_CHANGE_MODE
 386                                         | REGULATOR_CHANGE_STATUS,
 387         },
 388         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
 389         .consumer_supplies      = overo_vmmc1_supply,
 390 };
 391
 392 static struct twl4030_platform_data overo_twldata = {
 393         .gpio           = &overo_gpio_data,
 394         .vmmc1          = &overo_vmmc1,
 395 };
 396
 397 static int __init overo_i2c_init(void)
 398 {
 399         omap3_pmic_get_config(&overo_twldata,
 400                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
 401                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 402
 403         overo_twldata.vpll2->constraints.name = "VDVI";
 404
 405         omap3_pmic_init("tps65950", &overo_twldata);
 406         /* i2c2 pins are used for gpio */
 407         omap_register_i2c_bus(3, 400, NULL, 0);
 408         return 0;
 409 }
 410
 411 static struct spi_board_info overo_spi_board_info[] __initdata = {
 412 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
 413         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
 414         {
 415                 .modalias               = "lgphilips_lb035q02_panel-spi",
 416                 .bus_num                = 1,
 417                 .chip_select            = 1,
 418                 .max_speed_hz           = 500000,
 419                 .mode                   = SPI_MODE_3,
 420         },
 421 #endif
 422 };
 423
 424 static int __init overo_spi_init(void)
 425 {
 426         overo_ads7846_init();
 427         spi_register_board_info(overo_spi_board_info,
 428                         ARRAY_SIZE(overo_spi_board_info));
 429         return 0;
 430 }
 431
 432 static struct usbhs_phy_data phy_data[] __initdata = {
 433         {
 434                 .port = 2,
 435                 .reset_gpio = OVERO_GPIO_USBH_NRESET,
 436                 .vcc_gpio = -EINVAL,
 437         },
 438 };
 439
 440 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
 441         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 442 };
 443
 444 #ifdef CONFIG_OMAP_MUX
 445 static struct omap_board_mux board_mux[] __initdata = {
 446         { .reg_offset = OMAP_MUX_TERMINATOR },
 447 };
 448 #endif
 449
 450 static struct gpio overo_bt_gpios[] __initdata = {
 451         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
 452         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
 453 };
 454
 455 static struct regulator_consumer_supply dummy_supplies[] = {
 456         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 457         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 458         REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
 459         REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
 460 };
 461
 462 static void __init overo_init(void)
 463 {
 464         int ret;
 465
 466         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 467         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 468         overo_i2c_init();
 469         omap_hsmmc_init(mmc);
 470         omap_display_init(&overo_dss_data);
 471         omap_serial_init();
 472         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
 473                                   mt46h32m32lf6_sdrc_params);
 474         board_nand_init(overo_nand_partitions,
 475                         ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL);
 476         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 477         usb_musb_init(NULL);
 478
 479         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
 480         usbhs_init(&usbhs_bdata);
 481         overo_spi_init();
 482         overo_init_smsc911x();
 483         overo_init_led();
 484         overo_init_keys();
 485         omap_twl4030_audio_init("overo", NULL);
 486
 487         /* Ensure SDRC pins are mux'd for self-refresh */
 488         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 489         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 490
 491         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
 492                                "OVERO_GPIO_W2W_NRESET");
 493         if (ret == 0) {
 494                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
 495                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
 496                 udelay(10);
 497                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
 498         } else {
 499                 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
 500         }
 501
 502         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
 503         if (ret) {
 504                 pr_err("%s: could not obtain BT gpios\n", __func__);
 505         } else {
 506                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
 507                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
 508                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
 509                 mdelay(6);
 510                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
 511         }
 512
 513         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
 514                                "OVERO_GPIO_USBH_CPEN");
 515         if (ret == 0)
 516                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
 517         else
 518                 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
 519 }
 520
 521 MACHINE_START(OVERO, "Gumstix Overo")
 522         .atag_offset    = 0x100,
 523         .reserve        = omap_reserve,
 524         .map_io         = omap3_map_io,
 525         .init_early     = omap35xx_init_early,
 526         .init_irq       = omap3_init_irq,
 527         .handle_irq     = omap3_intc_handle_irq,
 528         .init_machine   = overo_init,
 529         .init_late      = omap35xx_init_late,
 530         .init_time      = omap3_sync32k_timer_init,
 531         .restart        = omap3xxx_restart,
 532 MACHINE_END