arch/arm/mach-omap2/board-omap3evm.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3evm.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/gpio.h>
  22 #include <linux/input.h>
  23 #include <linux/input/matrix_keypad.h>
  24 #include <linux/leds.h>
  25 #include <linux/interrupt.h>
  26
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ads7846.h>
  29 #include <linux/i2c/twl.h>
  30 #include <linux/usb/otg.h>
  31 #include <linux/smsc911x.h>
  32
  33 #include <linux/regulator/machine.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39
  40 #include <plat/board.h>
  41 #include <plat/usb.h>
  42 #include <plat/common.h>
  43 #include <plat/mcspi.h>
  44 #include <plat/display.h>
  45
  46 #include "mux.h"
  47 #include "sdram-micron-mt46h32m32lf-6.h"
  48 #include "hsmmc.h"
  49
  50 #define OMAP3_EVM_TS_GPIO       175
  51 #define OMAP3_EVM_EHCI_VBUS     22
  52 #define OMAP3_EVM_EHCI_SELECT   61
  53
  54 #define OMAP3EVM_ETHR_START     0x2c000000
  55 #define OMAP3EVM_ETHR_SIZE      1024
  56 #define OMAP3EVM_ETHR_ID_REV    0x50
  57 #define OMAP3EVM_ETHR_GPIO_IRQ  176
  58 #define OMAP3EVM_SMSC911X_CS    5
  59
  60 static u8 omap3_evm_version;
  61
  62 u8 get_omap3_evm_rev(void)
  63 {
  64         return omap3_evm_version;
  65 }
  66 EXPORT_SYMBOL(get_omap3_evm_rev);
  67
  68 static void __init omap3_evm_get_revision(void)
  69 {
  70         void __iomem *ioaddr;
  71         unsigned int smsc_id;
  72
  73         /* Ethernet PHY ID is stored at ID_REV register */
  74         ioaddr = ioremap_nocache(OMAP3EVM_ETHR_START, SZ_1K);
  75         if (!ioaddr)
  76                 return;
  77         smsc_id = readl(ioaddr + OMAP3EVM_ETHR_ID_REV) & 0xFFFF0000;
  78         iounmap(ioaddr);
  79
  80         switch (smsc_id) {
  81         /*SMSC9115 chipset*/
  82         case 0x01150000:
  83                 omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
  84                 break;
  85         /*SMSC 9220 chipset*/
  86         case 0x92200000:
  87         default:
  88                 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
  89         }
  90 }
  91
  92 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
  93 static struct resource omap3evm_smsc911x_resources[] = {
  94         [0] =   {
  95                 .start  = OMAP3EVM_ETHR_START,
  96                 .end    = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
  97                 .flags  = IORESOURCE_MEM,
  98         },
  99         [1] =   {
 100                 .start  = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
 101                 .end    = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
 102                 .flags  = (IORESOURCE_IRQ | IRQF_TRIGGER_LOW),
 103         },
 104 };
 105
 106 static struct smsc911x_platform_config smsc911x_config = {
 107         .phy_interface  = PHY_INTERFACE_MODE_MII,
 108         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 109         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 110         .flags          = (SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS),
 111 };
 112
 113 static struct platform_device omap3evm_smsc911x_device = {
 114         .name           = "smsc911x",
 115         .id             = -1,
 116         .num_resources  = ARRAY_SIZE(omap3evm_smsc911x_resources),
 117         .resource       = &omap3evm_smsc911x_resources[0],
 118         .dev            = {
 119                 .platform_data = &smsc911x_config,
 120         },
 121 };
 122
 123 static inline void __init omap3evm_init_smsc911x(void)
 124 {
 125         int eth_cs;
 126         struct clk *l3ck;
 127         unsigned int rate;
 128
 129         eth_cs = OMAP3EVM_SMSC911X_CS;
 130
 131         l3ck = clk_get(NULL, "l3_ck");
 132         if (IS_ERR(l3ck))
 133                 rate = 100000000;
 134         else
 135                 rate = clk_get_rate(l3ck);
 136
 137         if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMSC911x irq") < 0) {
 138                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 139                         OMAP3EVM_ETHR_GPIO_IRQ);
 140                 return;
 141         }
 142
 143         gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
 144         platform_device_register(&omap3evm_smsc911x_device);
 145 }
 146
 147 #else
 148 static inline void __init omap3evm_init_smsc911x(void) { return; }
 149 #endif
 150
 151 /*
 152  * OMAP3EVM LCD Panel control signals
 153  */
 154 #define OMAP3EVM_LCD_PANEL_LR           2
 155 #define OMAP3EVM_LCD_PANEL_UD           3
 156 #define OMAP3EVM_LCD_PANEL_INI          152
 157 #define OMAP3EVM_LCD_PANEL_ENVDD        153
 158 #define OMAP3EVM_LCD_PANEL_QVGA         154
 159 #define OMAP3EVM_LCD_PANEL_RESB         155
 160 #define OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO 210
 161 #define OMAP3EVM_DVI_PANEL_EN_GPIO      199
 162
 163 static int lcd_enabled;
 164 static int dvi_enabled;
 165
 166 static void __init omap3_evm_display_init(void)
 167 {
 168         int r;
 169
 170         r = gpio_request(OMAP3EVM_LCD_PANEL_RESB, "lcd_panel_resb");
 171         if (r) {
 172                 printk(KERN_ERR "failed to get lcd_panel_resb\n");
 173                 return;
 174         }
 175         gpio_direction_output(OMAP3EVM_LCD_PANEL_RESB, 1);
 176
 177         r = gpio_request(OMAP3EVM_LCD_PANEL_INI, "lcd_panel_ini");
 178         if (r) {
 179                 printk(KERN_ERR "failed to get lcd_panel_ini\n");
 180                 goto err_1;
 181         }
 182         gpio_direction_output(OMAP3EVM_LCD_PANEL_INI, 1);
 183
 184         r = gpio_request(OMAP3EVM_LCD_PANEL_QVGA, "lcd_panel_qvga");
 185         if (r) {
 186                 printk(KERN_ERR "failed to get lcd_panel_qvga\n");
 187                 goto err_2;
 188         }
 189         gpio_direction_output(OMAP3EVM_LCD_PANEL_QVGA, 0);
 190
 191         r = gpio_request(OMAP3EVM_LCD_PANEL_LR, "lcd_panel_lr");
 192         if (r) {
 193                 printk(KERN_ERR "failed to get lcd_panel_lr\n");
 194                 goto err_3;
 195         }
 196         gpio_direction_output(OMAP3EVM_LCD_PANEL_LR, 1);
 197
 198         r = gpio_request(OMAP3EVM_LCD_PANEL_UD, "lcd_panel_ud");
 199         if (r) {
 200                 printk(KERN_ERR "failed to get lcd_panel_ud\n");
 201                 goto err_4;
 202         }
 203         gpio_direction_output(OMAP3EVM_LCD_PANEL_UD, 1);
 204
 205         r = gpio_request(OMAP3EVM_LCD_PANEL_ENVDD, "lcd_panel_envdd");
 206         if (r) {
 207                 printk(KERN_ERR "failed to get lcd_panel_envdd\n");
 208                 goto err_5;
 209         }
 210         gpio_direction_output(OMAP3EVM_LCD_PANEL_ENVDD, 0);
 211
 212         return;
 213
 214 err_5:
 215         gpio_free(OMAP3EVM_LCD_PANEL_UD);
 216 err_4:
 217         gpio_free(OMAP3EVM_LCD_PANEL_LR);
 218 err_3:
 219         gpio_free(OMAP3EVM_LCD_PANEL_QVGA);
 220 err_2:
 221         gpio_free(OMAP3EVM_LCD_PANEL_INI);
 222 err_1:
 223         gpio_free(OMAP3EVM_LCD_PANEL_RESB);
 224
 225 }
 226
 227 static int omap3_evm_enable_lcd(struct omap_dss_device *dssdev)
 228 {
 229         if (dvi_enabled) {
 230                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
 231                 return -EINVAL;
 232         }
 233         gpio_set_value(OMAP3EVM_LCD_PANEL_ENVDD, 0);
 234
 235         if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
 236                 gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 0);
 237         else
 238                 gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 1);
 239
 240         lcd_enabled = 1;
 241         return 0;
 242 }
 243
 244 static void omap3_evm_disable_lcd(struct omap_dss_device *dssdev)
 245 {
 246         gpio_set_value(OMAP3EVM_LCD_PANEL_ENVDD, 1);
 247
 248         if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
 249                 gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 1);
 250         else
 251                 gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 0);
 252
 253         lcd_enabled = 0;
 254 }
 255
 256 static struct omap_dss_device omap3_evm_lcd_device = {
 257         .name                   = "lcd",
 258         .driver_name            = "sharp_ls_panel",
 259         .type                   = OMAP_DISPLAY_TYPE_DPI,
 260         .phy.dpi.data_lines     = 18,
 261         .platform_enable        = omap3_evm_enable_lcd,
 262         .platform_disable       = omap3_evm_disable_lcd,
 263 };
 264
 265 static int omap3_evm_enable_tv(struct omap_dss_device *dssdev)
 266 {
 267         return 0;
 268 }
 269
 270 static void omap3_evm_disable_tv(struct omap_dss_device *dssdev)
 271 {
 272 }
 273
 274 static struct omap_dss_device omap3_evm_tv_device = {
 275         .name                   = "tv",
 276         .driver_name            = "venc",
 277         .type                   = OMAP_DISPLAY_TYPE_VENC,
 278         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
 279         .platform_enable        = omap3_evm_enable_tv,
 280         .platform_disable       = omap3_evm_disable_tv,
 281 };
 282
 283 static int omap3_evm_enable_dvi(struct omap_dss_device *dssdev)
 284 {
 285         if (lcd_enabled) {
 286                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
 287                 return -EINVAL;
 288         }
 289
 290         gpio_set_value(OMAP3EVM_DVI_PANEL_EN_GPIO, 1);
 291
 292         dvi_enabled = 1;
 293         return 0;
 294 }
 295
 296 static void omap3_evm_disable_dvi(struct omap_dss_device *dssdev)
 297 {
 298         gpio_set_value(OMAP3EVM_DVI_PANEL_EN_GPIO, 0);
 299
 300         dvi_enabled = 0;
 301 }
 302
 303 static struct omap_dss_device omap3_evm_dvi_device = {
 304         .name                   = "dvi",
 305         .driver_name            = "generic_panel",
 306         .type                   = OMAP_DISPLAY_TYPE_DPI,
 307         .phy.dpi.data_lines     = 24,
 308         .platform_enable        = omap3_evm_enable_dvi,
 309         .platform_disable       = omap3_evm_disable_dvi,
 310 };
 311
 312 static struct omap_dss_device *omap3_evm_dss_devices[] = {
 313         &omap3_evm_lcd_device,
 314         &omap3_evm_tv_device,
 315         &omap3_evm_dvi_device,
 316 };
 317
 318 static struct omap_dss_board_info omap3_evm_dss_data = {
 319         .num_devices    = ARRAY_SIZE(omap3_evm_dss_devices),
 320         .devices        = omap3_evm_dss_devices,
 321         .default_device = &omap3_evm_lcd_device,
 322 };
 323
 324 static struct platform_device omap3_evm_dss_device = {
 325         .name           = "omapdss",
 326         .id             = -1,
 327         .dev            = {
 328                 .platform_data = &omap3_evm_dss_data,
 329         },
 330 };
 331
 332 static struct regulator_consumer_supply omap3evm_vmmc1_supply = {
 333         .supply                 = "vmmc",
 334 };
 335
 336 static struct regulator_consumer_supply omap3evm_vsim_supply = {
 337         .supply                 = "vmmc_aux",
 338 };
 339
 340 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 341 static struct regulator_init_data omap3evm_vmmc1 = {
 342         .constraints = {
 343                 .min_uV                 = 1850000,
 344                 .max_uV                 = 3150000,
 345                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 346                                         | REGULATOR_MODE_STANDBY,
 347                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 348                                         | REGULATOR_CHANGE_MODE
 349                                         | REGULATOR_CHANGE_STATUS,
 350         },
 351         .num_consumer_supplies  = 1,
 352         .consumer_supplies      = &omap3evm_vmmc1_supply,
 353 };
 354
 355 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 356 static struct regulator_init_data omap3evm_vsim = {
 357         .constraints = {
 358                 .min_uV                 = 1800000,
 359                 .max_uV                 = 3000000,
 360                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 361                                         | REGULATOR_MODE_STANDBY,
 362                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 363                                         | REGULATOR_CHANGE_MODE
 364                                         | REGULATOR_CHANGE_STATUS,
 365         },
 366         .num_consumer_supplies  = 1,
 367         .consumer_supplies      = &omap3evm_vsim_supply,
 368 };
 369
 370 static struct omap2_hsmmc_info mmc[] = {
 371         {
 372                 .mmc            = 1,
 373                 .wires          = 4,
 374                 .gpio_cd        = -EINVAL,
 375                 .gpio_wp        = 63,
 376         },
 377         {}      /* Terminator */
 378 };
 379
 380 static struct gpio_led gpio_leds[] = {
 381         {
 382                 .name                   = "omap3evm::ledb",
 383                 /* normally not visible (board underside) */
 384                 .default_trigger        = "default-on",
 385                 .gpio                   = -EINVAL,      /* gets replaced */
 386                 .active_low             = true,
 387         },
 388 };
 389
 390 static struct gpio_led_platform_data gpio_led_info = {
 391         .leds           = gpio_leds,
 392         .num_leds       = ARRAY_SIZE(gpio_leds),
 393 };
 394
 395 static struct platform_device leds_gpio = {
 396         .name   = "leds-gpio",
 397         .id     = -1,
 398         .dev    = {
 399                 .platform_data  = &gpio_led_info,
 400         },
 401 };
 402
 403
 404 static int omap3evm_twl_gpio_setup(struct device *dev,
 405                 unsigned gpio, unsigned ngpio)
 406 {
 407         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 408         omap_mux_init_gpio(63, OMAP_PIN_INPUT);
 409         mmc[0].gpio_cd = gpio + 0;
 410         omap2_hsmmc_init(mmc);
 411
 412         /* link regulators to MMC adapters */
 413         omap3evm_vmmc1_supply.dev = mmc[0].dev;
 414         omap3evm_vsim_supply.dev = mmc[0].dev;
 415
 416         /*
 417          * Most GPIOs are for USB OTG.  Some are mostly sent to
 418          * the P2 connector; notably LEDA for the LCD backlight.
 419          */
 420
 421         /* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */
 422         gpio_request(gpio + TWL4030_GPIO_MAX, "EN_LCD_BKL");
 423         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 424
 425         /* gpio + 7 == DVI Enable */
 426         gpio_request(gpio + 7, "EN_DVI");
 427         gpio_direction_output(gpio + 7, 0);
 428
 429         /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
 430         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 431
 432         platform_device_register(&leds_gpio);
 433
 434         return 0;
 435 }
 436
 437 static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
 438         .gpio_base      = OMAP_MAX_GPIO_LINES,
 439         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 440         .irq_end        = TWL4030_GPIO_IRQ_END,
 441         .use_leds       = true,
 442         .setup          = omap3evm_twl_gpio_setup,
 443 };
 444
 445 static struct twl4030_usb_data omap3evm_usb_data = {
 446         .usb_mode       = T2_USB_MODE_ULPI,
 447 };
 448
 449 static int board_keymap[] = {
 450         KEY(0, 0, KEY_LEFT),
 451         KEY(0, 1, KEY_DOWN),
 452         KEY(0, 2, KEY_ENTER),
 453         KEY(0, 3, KEY_M),
 454
 455         KEY(1, 0, KEY_RIGHT),
 456         KEY(1, 1, KEY_UP),
 457         KEY(1, 2, KEY_I),
 458         KEY(1, 3, KEY_N),
 459
 460         KEY(2, 0, KEY_A),
 461         KEY(2, 1, KEY_E),
 462         KEY(2, 2, KEY_J),
 463         KEY(2, 3, KEY_O),
 464
 465         KEY(3, 0, KEY_B),
 466         KEY(3, 1, KEY_F),
 467         KEY(3, 2, KEY_K),
 468         KEY(3, 3, KEY_P)
 469 };
 470
 471 static struct matrix_keymap_data board_map_data = {
 472         .keymap                 = board_keymap,
 473         .keymap_size            = ARRAY_SIZE(board_keymap),
 474 };
 475
 476 static struct twl4030_keypad_data omap3evm_kp_data = {
 477         .keymap_data    = &board_map_data,
 478         .rows           = 4,
 479         .cols           = 4,
 480         .rep            = 1,
 481 };
 482
 483 static struct twl4030_madc_platform_data omap3evm_madc_data = {
 484         .irq_line       = 1,
 485 };
 486
 487 static struct twl4030_codec_audio_data omap3evm_audio_data = {
 488         .audio_mclk = 26000000,
 489 };
 490
 491 static struct twl4030_codec_data omap3evm_codec_data = {
 492         .audio_mclk = 26000000,
 493         .audio = &omap3evm_audio_data,
 494 };
 495
 496 static struct regulator_consumer_supply omap3_evm_vdda_dac_supply = {
 497         .supply         = "vdda_dac",
 498         .dev            = &omap3_evm_dss_device.dev,
 499 };
 500
 501 /* VDAC for DSS driving S-Video */
 502 static struct regulator_init_data omap3_evm_vdac = {
 503         .constraints = {
 504                 .min_uV                 = 1800000,
 505                 .max_uV                 = 1800000,
 506                 .apply_uV               = true,
 507                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 508                                         | REGULATOR_MODE_STANDBY,
 509                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 510                                         | REGULATOR_CHANGE_STATUS,
 511         },
 512         .num_consumer_supplies  = 1,
 513         .consumer_supplies      = &omap3_evm_vdda_dac_supply,
 514 };
 515
 516 /* VPLL2 for digital video outputs */
 517 static struct regulator_consumer_supply omap3_evm_vpll2_supply = {
 518         .supply         = "vdvi",
 519         .dev            = &omap3_evm_lcd_device.dev,
 520 };
 521
 522 static struct regulator_init_data omap3_evm_vpll2 = {
 523         .constraints = {
 524                 .name                   = "VDVI",
 525                 .min_uV                 = 1800000,
 526                 .max_uV                 = 1800000,
 527                 .apply_uV               = true,
 528                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 529                                         | REGULATOR_MODE_STANDBY,
 530                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 531                                         | REGULATOR_CHANGE_STATUS,
 532         },
 533         .num_consumer_supplies  = 1,
 534         .consumer_supplies      = &omap3_evm_vpll2_supply,
 535 };
 536
 537 static struct twl4030_platform_data omap3evm_twldata = {
 538         .irq_base       = TWL4030_IRQ_BASE,
 539         .irq_end        = TWL4030_IRQ_END,
 540
 541         /* platform_data for children goes here */
 542         .keypad         = &omap3evm_kp_data,
 543         .madc           = &omap3evm_madc_data,
 544         .usb            = &omap3evm_usb_data,
 545         .gpio           = &omap3evm_gpio_data,
 546         .codec          = &omap3evm_codec_data,
 547         .vdac           = &omap3_evm_vdac,
 548         .vpll2          = &omap3_evm_vpll2,
 549 };
 550
 551 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
 552         {
 553                 I2C_BOARD_INFO("twl4030", 0x48),
 554                 .flags = I2C_CLIENT_WAKE,
 555                 .irq = INT_34XX_SYS_NIRQ,
 556                 .platform_data = &omap3evm_twldata,
 557         },
 558 };
 559
 560 static int __init omap3_evm_i2c_init(void)
 561 {
 562         /*
 563          * REVISIT: These entries can be set in omap3evm_twl_data
 564          * after a merge with MFD tree
 565          */
 566         omap3evm_twldata.vmmc1 = &omap3evm_vmmc1;
 567         omap3evm_twldata.vsim = &omap3evm_vsim;
 568
 569         omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
 570                         ARRAY_SIZE(omap3evm_i2c_boardinfo));
 571         omap_register_i2c_bus(2, 400, NULL, 0);
 572         omap_register_i2c_bus(3, 400, NULL, 0);
 573         return 0;
 574 }
 575
 576 static void ads7846_dev_init(void)
 577 {
 578         if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
 579                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 580
 581         gpio_direction_input(OMAP3_EVM_TS_GPIO);
 582
 583         omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
 584         omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
 585 }
 586
 587 static int ads7846_get_pendown_state(void)
 588 {
 589         return !gpio_get_value(OMAP3_EVM_TS_GPIO);
 590 }
 591
 592 struct ads7846_platform_data ads7846_config = {
 593         .x_max                  = 0x0fff,
 594         .y_max                  = 0x0fff,
 595         .x_plate_ohms           = 180,
 596         .pressure_max           = 255,
 597         .debounce_max           = 10,
 598         .debounce_tol           = 3,
 599         .debounce_rep           = 1,
 600         .get_pendown_state      = ads7846_get_pendown_state,
 601         .keep_vref_on           = 1,
 602         .settle_delay_usecs     = 150,
 603 };
 604
 605 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
 606         .turbo_mode     = 0,
 607         .single_channel = 1,    /* 0: slave, 1: master */
 608 };
 609
 610 struct spi_board_info omap3evm_spi_board_info[] = {
 611         [0] = {
 612                 .modalias               = "ads7846",
 613                 .bus_num                = 1,
 614                 .chip_select            = 0,
 615                 .max_speed_hz           = 1500000,
 616                 .controller_data        = &ads7846_mcspi_config,
 617                 .irq                    = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
 618                 .platform_data          = &ads7846_config,
 619         },
 620 };
 621
 622 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
 623 };
 624
 625 static void __init omap3_evm_init_irq(void)
 626 {
 627         omap_board_config = omap3_evm_config;
 628         omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 629         omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
 630         omap_init_irq();
 631         omap_gpio_init();
 632 }
 633
 634 static struct platform_device *omap3_evm_devices[] __initdata = {
 635         &omap3_evm_dss_device,
 636 };
 637
 638 static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = {
 639
 640         .port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 641         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 642         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 643
 644         .phy_reset  = true,
 645         /* PHY reset GPIO will be runtime programmed based on EVM version */
 646         .reset_gpio_port[0]  = -EINVAL,
 647         .reset_gpio_port[1]  = -EINVAL,
 648         .reset_gpio_port[2]  = -EINVAL
 649 };
 650
 651 #ifdef CONFIG_OMAP_MUX
 652 static struct omap_board_mux board_mux[] __initdata = {
 653         OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
 654                                 OMAP_PIN_OFF_INPUT_PULLUP |
 655                                 OMAP_PIN_OFF_WAKEUPENABLE),
 656         OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
 657                                 OMAP_PIN_OFF_INPUT_PULLUP |
 658                                 OMAP_PIN_OFF_WAKEUPENABLE),
 659         { .reg_offset = OMAP_MUX_TERMINATOR },
 660 };
 661 #else
 662 #define board_mux       NULL
 663 #endif
 664
 665 static struct omap_musb_board_data musb_board_data = {
 666         .interface_type         = MUSB_INTERFACE_ULPI,
 667         .mode                   = MUSB_OTG,
 668         .power                  = 100,
 669 };
 670
 671 static void __init omap3_evm_init(void)
 672 {
 673         omap3_evm_get_revision();
 674         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 675
 676         omap3_evm_i2c_init();
 677
 678         platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
 679
 680         spi_register_board_info(omap3evm_spi_board_info,
 681                                 ARRAY_SIZE(omap3evm_spi_board_info));
 682
 683         omap_serial_init();
 684
 685         /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
 686         usb_nop_xceiv_register();
 687
 688         if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) {
 689                 /* enable EHCI VBUS using GPIO22 */
 690                 omap_mux_init_gpio(22, OMAP_PIN_INPUT_PULLUP);
 691                 gpio_request(OMAP3_EVM_EHCI_VBUS, "enable EHCI VBUS");
 692                 gpio_direction_output(OMAP3_EVM_EHCI_VBUS, 0);
 693                 gpio_set_value(OMAP3_EVM_EHCI_VBUS, 1);
 694
 695                 /* Select EHCI port on main board */
 696                 omap_mux_init_gpio(61, OMAP_PIN_INPUT_PULLUP);
 697                 gpio_request(OMAP3_EVM_EHCI_SELECT, "select EHCI port");
 698                 gpio_direction_output(OMAP3_EVM_EHCI_SELECT, 0);
 699                 gpio_set_value(OMAP3_EVM_EHCI_SELECT, 0);
 700
 701                 /* setup EHCI phy reset config */
 702                 omap_mux_init_gpio(21, OMAP_PIN_INPUT_PULLUP);
 703                 ehci_pdata.reset_gpio_port[1] = 21;
 704
 705         } else {
 706                 /* setup EHCI phy reset on MDC */
 707                 omap_mux_init_gpio(135, OMAP_PIN_OUTPUT);
 708                 ehci_pdata.reset_gpio_port[1] = 135;
 709         }
 710         usb_musb_init(&musb_board_data);
 711         usb_ehci_init(&ehci_pdata);
 712         ads7846_dev_init();
 713         omap3evm_init_smsc911x();
 714         omap3_evm_display_init();
 715 }
 716
 717 static void __init omap3_evm_map_io(void)
 718 {
 719         omap2_set_globals_343x();
 720         omap34xx_map_common_io();
 721 }
 722
 723 MACHINE_START(OMAP3EVM, "OMAP3 EVM")
 724         /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
 725         .phys_io        = 0x48000000,
 726         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 727         .boot_params    = 0x80000100,
 728         .map_io         = omap3_evm_map_io,
 729         .init_irq       = omap3_evm_init_irq,
 730         .init_machine   = omap3_evm_init,
 731         .timer          = &omap_timer,
 732 MACHINE_END