arch/arm/mach-omap2/board-omap3beagle.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3beagle.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/io.h>
  22 #include <linux/leds.h>
  23 #include <linux/gpio.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26 #include <linux/opp.h>
  27
  28 #include <linux/mtd/mtd.h>
  29 #include <linux/mtd/partitions.h>
  30 #include <linux/mtd/nand.h>
  31 #include <linux/mmc/host.h>
  32
  33 #include <linux/regulator/machine.h>
  34 #include <linux/i2c/twl.h>
  35
  36 #include <mach/hardware.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/map.h>
  40 #include <asm/mach/flash.h>
  41
  42 #include <plat/board.h>
  43 #include <plat/common.h>
  44 #include <plat/display.h>
  45 #include <plat/panel-generic-dpi.h>
  46 #include <plat/gpmc.h>
  47 #include <plat/nand.h>
  48 #include <plat/usb.h>
  49 #include <plat/omap_device.h>
  50
  51 #include "mux.h"
  52 #include "hsmmc.h"
  53 #include "timer-gp.h"
  54 #include "pm.h"
  55
  56 #define NAND_BLOCK_SIZE         SZ_128K
  57
  58 /*
  59  * OMAP3 Beagle revision
  60  * Run time detection of Beagle revision is done by reading GPIO.
  61  * GPIO ID -
  62  *      AXBX    = GPIO173, GPIO172, GPIO171: 1 1 1
  63  *      C1_3    = GPIO173, GPIO172, GPIO171: 1 1 0
  64  *      C4      = GPIO173, GPIO172, GPIO171: 1 0 1
  65  *      XM      = GPIO173, GPIO172, GPIO171: 0 0 0
  66  */
  67 enum {
  68         OMAP3BEAGLE_BOARD_UNKN = 0,
  69         OMAP3BEAGLE_BOARD_AXBX,
  70         OMAP3BEAGLE_BOARD_C1_3,
  71         OMAP3BEAGLE_BOARD_C4,
  72         OMAP3BEAGLE_BOARD_XM,
  73 };
  74
  75 static u8 omap3_beagle_version;
  76
  77 static u8 omap3_beagle_get_rev(void)
  78 {
  79         return omap3_beagle_version;
  80 }
  81
  82 static void __init omap3_beagle_init_rev(void)
  83 {
  84         int ret;
  85         u16 beagle_rev = 0;
  86
  87         omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
  88         omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
  89         omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
  90
  91         ret = gpio_request(171, "rev_id_0");
  92         if (ret < 0)
  93                 goto fail0;
  94
  95         ret = gpio_request(172, "rev_id_1");
  96         if (ret < 0)
  97                 goto fail1;
  98
  99         ret = gpio_request(173, "rev_id_2");
 100         if (ret < 0)
 101                 goto fail2;
 102
 103         gpio_direction_input(171);
 104         gpio_direction_input(172);
 105         gpio_direction_input(173);
 106
 107         beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
 108                         | (gpio_get_value(173) << 2);
 109
 110         switch (beagle_rev) {
 111         case 7:
 112                 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
 113                 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
 114                 break;
 115         case 6:
 116                 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
 117                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
 118                 break;
 119         case 5:
 120                 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
 121                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
 122                 break;
 123         case 0:
 124                 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
 125                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
 126                 break;
 127         default:
 128                 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
 129                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 130         }
 131
 132         return;
 133
 134 fail2:
 135         gpio_free(172);
 136 fail1:
 137         gpio_free(171);
 138 fail0:
 139         printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
 140         omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 141
 142         return;
 143 }
 144
 145 static struct mtd_partition omap3beagle_nand_partitions[] = {
 146         /* All the partition sizes are listed in terms of NAND block size */
 147         {
 148                 .name           = "X-Loader",
 149                 .offset         = 0,
 150                 .size           = 4 * NAND_BLOCK_SIZE,
 151                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 152         },
 153         {
 154                 .name           = "U-Boot",
 155                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 156                 .size           = 15 * NAND_BLOCK_SIZE,
 157                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 158         },
 159         {
 160                 .name           = "U-Boot Env",
 161                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 162                 .size           = 1 * NAND_BLOCK_SIZE,
 163         },
 164         {
 165                 .name           = "Kernel",
 166                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 167                 .size           = 32 * NAND_BLOCK_SIZE,
 168         },
 169         {
 170                 .name           = "File System",
 171                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 172                 .size           = MTDPART_SIZ_FULL,
 173         },
 174 };
 175
 176 static struct omap_nand_platform_data omap3beagle_nand_data = {
 177         .options        = NAND_BUSWIDTH_16,
 178         .parts          = omap3beagle_nand_partitions,
 179         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
 180         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
 181         .nand_setup     = NULL,
 182         .dev_ready      = NULL,
 183 };
 184
 185 /* DSS */
 186
 187 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
 188 {
 189         if (gpio_is_valid(dssdev->reset_gpio))
 190                 gpio_set_value(dssdev->reset_gpio, 1);
 191
 192         return 0;
 193 }
 194
 195 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
 196 {
 197         if (gpio_is_valid(dssdev->reset_gpio))
 198                 gpio_set_value(dssdev->reset_gpio, 0);
 199 }
 200
 201 static struct panel_generic_dpi_data dvi_panel = {
 202         .name = "generic",
 203         .platform_enable = beagle_enable_dvi,
 204         .platform_disable = beagle_disable_dvi,
 205 };
 206
 207 static struct omap_dss_device beagle_dvi_device = {
 208         .type = OMAP_DISPLAY_TYPE_DPI,
 209         .name = "dvi",
 210         .driver_name = "generic_dpi_panel",
 211         .data = &dvi_panel,
 212         .phy.dpi.data_lines = 24,
 213         .reset_gpio = -EINVAL,
 214 };
 215
 216 static struct omap_dss_device beagle_tv_device = {
 217         .name = "tv",
 218         .driver_name = "venc",
 219         .type = OMAP_DISPLAY_TYPE_VENC,
 220         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 221 };
 222
 223 static struct omap_dss_device *beagle_dss_devices[] = {
 224         &beagle_dvi_device,
 225         &beagle_tv_device,
 226 };
 227
 228 static struct omap_dss_board_info beagle_dss_data = {
 229         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 230         .devices = beagle_dss_devices,
 231         .default_device = &beagle_dvi_device,
 232 };
 233
 234 static struct regulator_consumer_supply beagle_vdac_supply =
 235         REGULATOR_SUPPLY("vdda_dac", "omapdss");
 236
 237 static struct regulator_consumer_supply beagle_vdvi_supply =
 238         REGULATOR_SUPPLY("vdds_dsi", "omapdss");
 239
 240 static void __init beagle_display_init(void)
 241 {
 242         int r;
 243
 244         r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
 245         if (r < 0) {
 246                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 247                 return;
 248         }
 249
 250         gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
 251 }
 252
 253 #include "sdram-micron-mt46h32m32lf-6.h"
 254
 255 static struct omap2_hsmmc_info mmc[] = {
 256         {
 257                 .mmc            = 1,
 258                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 259                 .gpio_wp        = 29,
 260         },
 261         {}      /* Terminator */
 262 };
 263
 264 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 265         .supply                 = "vmmc",
 266 };
 267
 268 static struct regulator_consumer_supply beagle_vsim_supply = {
 269         .supply                 = "vmmc_aux",
 270 };
 271
 272 static struct gpio_led gpio_leds[];
 273
 274 static int beagle_twl_gpio_setup(struct device *dev,
 275                 unsigned gpio, unsigned ngpio)
 276 {
 277         int r;
 278
 279         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 280                 mmc[0].gpio_wp = -EINVAL;
 281         } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
 282                 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
 283                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 284                 mmc[0].gpio_wp = 23;
 285         } else {
 286                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
 287         }
 288         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 289         mmc[0].gpio_cd = gpio + 0;
 290         omap2_hsmmc_init(mmc);
 291
 292         /* link regulators to MMC adapters */
 293         beagle_vmmc1_supply.dev = mmc[0].dev;
 294         beagle_vsim_supply.dev = mmc[0].dev;
 295
 296         /* REVISIT: need ehci-omap hooks for external VBUS
 297          * power switch and overcurrent detect
 298          */
 299         if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
 300                 r = gpio_request(gpio + 1, "EHCI_nOC");
 301                 if (!r) {
 302                         r = gpio_direction_input(gpio + 1);
 303                         if (r)
 304                                 gpio_free(gpio + 1);
 305                 }
 306                 if (r)
 307                         pr_err("%s: unable to configure EHCI_nOC\n", __func__);
 308         }
 309
 310         /*
 311          * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
 312          * high / others active low)
 313          */
 314         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 315         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
 316                 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
 317         else
 318                 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 319
 320         /* DVI reset GPIO is different between beagle revisions */
 321         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
 322                 beagle_dvi_device.reset_gpio = 129;
 323         else
 324                 beagle_dvi_device.reset_gpio = 170;
 325
 326         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 327         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 328
 329         /*
 330          * gpio + 1 on Xm controls the TFP410's enable line (active low)
 331          * gpio + 2 control varies depending on the board rev as follows:
 332          * P7/P8 revisions(prototype): Camera EN
 333          * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
 334          */
 335         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 336                 r = gpio_request(gpio + 1, "nDVI_PWR_EN");
 337                 if (!r) {
 338                         r = gpio_direction_output(gpio + 1, 0);
 339                         if (r)
 340                                 gpio_free(gpio + 1);
 341                 }
 342                 if (r)
 343                         pr_err("%s: unable to configure nDVI_PWR_EN\n",
 344                                 __func__);
 345                 r = gpio_request(gpio + 2, "DVI_LDO_EN");
 346                 if (!r) {
 347                         r = gpio_direction_output(gpio + 2, 1);
 348                         if (r)
 349                                 gpio_free(gpio + 2);
 350                 }
 351                 if (r)
 352                         pr_err("%s: unable to configure DVI_LDO_EN\n",
 353                                 __func__);
 354         }
 355
 356         return 0;
 357 }
 358
 359 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 360         .gpio_base      = OMAP_MAX_GPIO_LINES,
 361         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 362         .irq_end        = TWL4030_GPIO_IRQ_END,
 363         .use_leds       = true,
 364         .pullups        = BIT(1),
 365         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 366                                 | BIT(15) | BIT(16) | BIT(17),
 367         .setup          = beagle_twl_gpio_setup,
 368 };
 369
 370 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 371 static struct regulator_init_data beagle_vmmc1 = {
 372         .constraints = {
 373                 .min_uV                 = 1850000,
 374                 .max_uV                 = 3150000,
 375                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 376                                         | REGULATOR_MODE_STANDBY,
 377                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 378                                         | REGULATOR_CHANGE_MODE
 379                                         | REGULATOR_CHANGE_STATUS,
 380         },
 381         .num_consumer_supplies  = 1,
 382         .consumer_supplies      = &beagle_vmmc1_supply,
 383 };
 384
 385 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 386 static struct regulator_init_data beagle_vsim = {
 387         .constraints = {
 388                 .min_uV                 = 1800000,
 389                 .max_uV                 = 3000000,
 390                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 391                                         | REGULATOR_MODE_STANDBY,
 392                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 393                                         | REGULATOR_CHANGE_MODE
 394                                         | REGULATOR_CHANGE_STATUS,
 395         },
 396         .num_consumer_supplies  = 1,
 397         .consumer_supplies      = &beagle_vsim_supply,
 398 };
 399
 400 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 401 static struct regulator_init_data beagle_vdac = {
 402         .constraints = {
 403                 .min_uV                 = 1800000,
 404                 .max_uV                 = 1800000,
 405                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 406                                         | REGULATOR_MODE_STANDBY,
 407                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 408                                         | REGULATOR_CHANGE_STATUS,
 409         },
 410         .num_consumer_supplies  = 1,
 411         .consumer_supplies      = &beagle_vdac_supply,
 412 };
 413
 414 /* VPLL2 for digital video outputs */
 415 static struct regulator_init_data beagle_vpll2 = {
 416         .constraints = {
 417                 .name                   = "VDVI",
 418                 .min_uV                 = 1800000,
 419                 .max_uV                 = 1800000,
 420                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 421                                         | REGULATOR_MODE_STANDBY,
 422                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 423                                         | REGULATOR_CHANGE_STATUS,
 424         },
 425         .num_consumer_supplies  = 1,
 426         .consumer_supplies      = &beagle_vdvi_supply,
 427 };
 428
 429 static struct twl4030_usb_data beagle_usb_data = {
 430         .usb_mode       = T2_USB_MODE_ULPI,
 431 };
 432
 433 static struct twl4030_codec_audio_data beagle_audio_data;
 434
 435 static struct twl4030_codec_data beagle_codec_data = {
 436         .audio_mclk = 26000000,
 437         .audio = &beagle_audio_data,
 438 };
 439
 440 static struct twl4030_platform_data beagle_twldata = {
 441         .irq_base       = TWL4030_IRQ_BASE,
 442         .irq_end        = TWL4030_IRQ_END,
 443
 444         /* platform_data for children goes here */
 445         .usb            = &beagle_usb_data,
 446         .gpio           = &beagle_gpio_data,
 447         .codec          = &beagle_codec_data,
 448         .vmmc1          = &beagle_vmmc1,
 449         .vsim           = &beagle_vsim,
 450         .vdac           = &beagle_vdac,
 451         .vpll2          = &beagle_vpll2,
 452 };
 453
 454 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 455         {
 456                 I2C_BOARD_INFO("twl4030", 0x48),
 457                 .flags = I2C_CLIENT_WAKE,
 458                 .irq = INT_34XX_SYS_NIRQ,
 459                 .platform_data = &beagle_twldata,
 460         },
 461 };
 462
 463 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
 464        {
 465                I2C_BOARD_INFO("eeprom", 0x50),
 466        },
 467 };
 468
 469 static int __init omap3_beagle_i2c_init(void)
 470 {
 471         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 472                         ARRAY_SIZE(beagle_i2c_boardinfo));
 473         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 474          * projector don't work reliably with 400kHz */
 475         omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
 476         return 0;
 477 }
 478
 479 static struct gpio_led gpio_leds[] = {
 480         {
 481                 .name                   = "beagleboard::usr0",
 482                 .default_trigger        = "heartbeat",
 483                 .gpio                   = 150,
 484         },
 485         {
 486                 .name                   = "beagleboard::usr1",
 487                 .default_trigger        = "mmc0",
 488                 .gpio                   = 149,
 489         },
 490         {
 491                 .name                   = "beagleboard::pmu_stat",
 492                 .gpio                   = -EINVAL,      /* gets replaced */
 493                 .active_low             = true,
 494         },
 495 };
 496
 497 static struct gpio_led_platform_data gpio_led_info = {
 498         .leds           = gpio_leds,
 499         .num_leds       = ARRAY_SIZE(gpio_leds),
 500 };
 501
 502 static struct platform_device leds_gpio = {
 503         .name   = "leds-gpio",
 504         .id     = -1,
 505         .dev    = {
 506                 .platform_data  = &gpio_led_info,
 507         },
 508 };
 509
 510 static struct gpio_keys_button gpio_buttons[] = {
 511         {
 512                 .code                   = BTN_EXTRA,
 513                 .gpio                   = 7,
 514                 .desc                   = "user",
 515                 .wakeup                 = 1,
 516         },
 517 };
 518
 519 static struct gpio_keys_platform_data gpio_key_info = {
 520         .buttons        = gpio_buttons,
 521         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 522 };
 523
 524 static struct platform_device keys_gpio = {
 525         .name   = "gpio-keys",
 526         .id     = -1,
 527         .dev    = {
 528                 .platform_data  = &gpio_key_info,
 529         },
 530 };
 531
 532 static void __init omap3_beagle_init_early(void)
 533 {
 534         omap2_init_common_infrastructure();
 535         omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
 536                                   mt46h32m32lf6_sdrc_params);
 537 }
 538
 539 static void __init omap3_beagle_init_irq(void)
 540 {
 541         omap_init_irq();
 542 #ifdef CONFIG_OMAP_32K_TIMER
 543         omap2_gp_clockevent_set_gptimer(12);
 544 #endif
 545 }
 546
 547 static struct platform_device *omap3_beagle_devices[] __initdata = {
 548         &leds_gpio,
 549         &keys_gpio,
 550 };
 551
 552 static void __init omap3beagle_flash_init(void)
 553 {
 554         u8 cs = 0;
 555         u8 nandcs = GPMC_CS_NUM + 1;
 556
 557         /* find out the chip-select on which NAND exists */
 558         while (cs < GPMC_CS_NUM) {
 559                 u32 ret = 0;
 560                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 561
 562                 if ((ret & 0xC00) == 0x800) {
 563                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 564                         if (nandcs > GPMC_CS_NUM)
 565                                 nandcs = cs;
 566                 }
 567                 cs++;
 568         }
 569
 570         if (nandcs > GPMC_CS_NUM) {
 571                 printk(KERN_INFO "NAND: Unable to find configuration "
 572                                  "in GPMC\n ");
 573                 return;
 574         }
 575
 576         if (nandcs < GPMC_CS_NUM) {
 577                 omap3beagle_nand_data.cs = nandcs;
 578
 579                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 580                 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
 581                         printk(KERN_ERR "Unable to register NAND device\n");
 582         }
 583 }
 584
 585 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 586
 587         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 588         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 589         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 590
 591         .phy_reset  = true,
 592         .reset_gpio_port[0]  = -EINVAL,
 593         .reset_gpio_port[1]  = 147,
 594         .reset_gpio_port[2]  = -EINVAL
 595 };
 596
 597 #ifdef CONFIG_OMAP_MUX
 598 static struct omap_board_mux board_mux[] __initdata = {
 599         { .reg_offset = OMAP_MUX_TERMINATOR },
 600 };
 601 #endif
 602
 603 static struct omap_musb_board_data musb_board_data = {
 604         .interface_type         = MUSB_INTERFACE_ULPI,
 605         .mode                   = MUSB_OTG,
 606         .power                  = 100,
 607 };
 608
 609 static void __init beagle_opp_init(void)
 610 {
 611         int r = 0;
 612
 613         /* Initialize the omap3 opp table */
 614         if (omap3_opp_init()) {
 615                 pr_err("%s: opp default init failed\n", __func__);
 616                 return;
 617         }
 618
 619         /* Custom OPP enabled for XM */
 620         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 621                 struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
 622                 struct omap_hwmod *dh = omap_hwmod_lookup("iva");
 623                 struct device *dev;
 624
 625                 if (!mh || !dh) {
 626                         pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
 627                                 __func__, mh, dh);
 628                         return;
 629                 }
 630                 /* Enable MPU 1GHz and lower opps */
 631                 dev = &mh->od->pdev.dev;
 632                 r = opp_enable(dev, 800000000);
 633                 /* TODO: MPU 1GHz needs SR and ABB */
 634
 635                 /* Enable IVA 800MHz and lower opps */
 636                 dev = &dh->od->pdev.dev;
 637                 r |= opp_enable(dev, 660000000);
 638                 /* TODO: DSP 800MHz needs SR and ABB */
 639                 if (r) {
 640                         pr_err("%s: failed to enable higher opp %d\n",
 641                                 __func__, r);
 642                         /*
 643                          * Cleanup - disable the higher freqs - we dont care
 644                          * about the results
 645                          */
 646                         dev = &mh->od->pdev.dev;
 647                         opp_disable(dev, 800000000);
 648                         dev = &dh->od->pdev.dev;
 649                         opp_disable(dev, 660000000);
 650                 }
 651         }
 652         return;
 653 }
 654
 655 static void __init omap3_beagle_init(void)
 656 {
 657         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 658         omap3_beagle_init_rev();
 659         omap3_beagle_i2c_init();
 660         platform_add_devices(omap3_beagle_devices,
 661                         ARRAY_SIZE(omap3_beagle_devices));
 662         omap_display_init(&beagle_dss_data);
 663         omap_serial_init();
 664
 665         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
 666         gpio_request(170, "DVI_nPD");
 667         /* REVISIT leave DVI powered down until it's needed ... */
 668         gpio_direction_output(170, true);
 669
 670         usb_musb_init(&musb_board_data);
 671         usbhs_init(&usbhs_bdata);
 672         omap3beagle_flash_init();
 673
 674         /* Ensure SDRC pins are mux'd for self-refresh */
 675         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 676         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 677
 678         beagle_display_init();
 679         beagle_opp_init();
 680 }
 681
 682 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 683         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 684         .boot_params    = 0x80000100,
 685         .reserve        = omap_reserve,
 686         .map_io         = omap3_map_io,
 687         .init_early     = omap3_beagle_init_early,
 688         .init_irq       = omap3_beagle_init_irq,
 689         .init_machine   = omap3_beagle_init,
 690         .timer          = &omap_timer,
 691 MACHINE_END