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 <video/omapdss.h>
  45 #include <video/omap-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 #include "common-board-devices.h"
  56
  57 #define NAND_BLOCK_SIZE         SZ_128K
  58
  59 /*
  60  * OMAP3 Beagle revision
  61  * Run time detection of Beagle revision is done by reading GPIO.
  62  * GPIO ID -
  63  *      AXBX    = GPIO173, GPIO172, GPIO171: 1 1 1
  64  *      C1_3    = GPIO173, GPIO172, GPIO171: 1 1 0
  65  *      C4      = GPIO173, GPIO172, GPIO171: 1 0 1
  66  *      XM      = GPIO173, GPIO172, GPIO171: 0 0 0
  67  */
  68 enum {
  69         OMAP3BEAGLE_BOARD_UNKN = 0,
  70         OMAP3BEAGLE_BOARD_AXBX,
  71         OMAP3BEAGLE_BOARD_C1_3,
  72         OMAP3BEAGLE_BOARD_C4,
  73         OMAP3BEAGLE_BOARD_XM,
  74 };
  75
  76 static u8 omap3_beagle_version;
  77
  78 static u8 omap3_beagle_get_rev(void)
  79 {
  80         return omap3_beagle_version;
  81 }
  82
  83 static struct gpio omap3_beagle_rev_gpios[] __initdata = {
  84         { 171, GPIOF_IN, "rev_id_0"    },
  85         { 172, GPIOF_IN, "rev_id_1" },
  86         { 173, GPIOF_IN, "rev_id_2"    },
  87 };
  88
  89 static void __init omap3_beagle_init_rev(void)
  90 {
  91         int ret;
  92         u16 beagle_rev = 0;
  93
  94         omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
  95         omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
  96         omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
  97
  98         ret = gpio_request_array(omap3_beagle_rev_gpios,
  99                                  ARRAY_SIZE(omap3_beagle_rev_gpios));
 100         if (ret < 0) {
 101                 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
 102                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 103                 return;
 104         }
 105
 106         beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
 107                         | (gpio_get_value(173) << 2);
 108
 109         gpio_free_array(omap3_beagle_rev_gpios,
 110                         ARRAY_SIZE(omap3_beagle_rev_gpios));
 111
 112         switch (beagle_rev) {
 113         case 7:
 114                 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
 115                 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
 116                 break;
 117         case 6:
 118                 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
 119                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
 120                 break;
 121         case 5:
 122                 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
 123                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
 124                 break;
 125         case 0:
 126                 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
 127                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
 128                 break;
 129         default:
 130                 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
 131                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 132         }
 133 }
 134
 135 static struct mtd_partition omap3beagle_nand_partitions[] = {
 136         /* All the partition sizes are listed in terms of NAND block size */
 137         {
 138                 .name           = "X-Loader",
 139                 .offset         = 0,
 140                 .size           = 4 * NAND_BLOCK_SIZE,
 141                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 142         },
 143         {
 144                 .name           = "U-Boot",
 145                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 146                 .size           = 15 * NAND_BLOCK_SIZE,
 147                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 148         },
 149         {
 150                 .name           = "U-Boot Env",
 151                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 152                 .size           = 1 * NAND_BLOCK_SIZE,
 153         },
 154         {
 155                 .name           = "Kernel",
 156                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 157                 .size           = 32 * NAND_BLOCK_SIZE,
 158         },
 159         {
 160                 .name           = "File System",
 161                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 162                 .size           = MTDPART_SIZ_FULL,
 163         },
 164 };
 165
 166 /* DSS */
 167
 168 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
 169 {
 170         if (gpio_is_valid(dssdev->reset_gpio))
 171                 gpio_set_value(dssdev->reset_gpio, 1);
 172
 173         return 0;
 174 }
 175
 176 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
 177 {
 178         if (gpio_is_valid(dssdev->reset_gpio))
 179                 gpio_set_value(dssdev->reset_gpio, 0);
 180 }
 181
 182 static struct panel_generic_dpi_data dvi_panel = {
 183         .name = "generic",
 184         .platform_enable = beagle_enable_dvi,
 185         .platform_disable = beagle_disable_dvi,
 186 };
 187
 188 static struct omap_dss_device beagle_dvi_device = {
 189         .type = OMAP_DISPLAY_TYPE_DPI,
 190         .name = "dvi",
 191         .driver_name = "generic_dpi_panel",
 192         .data = &dvi_panel,
 193         .phy.dpi.data_lines = 24,
 194         .reset_gpio = -EINVAL,
 195 };
 196
 197 static struct omap_dss_device beagle_tv_device = {
 198         .name = "tv",
 199         .driver_name = "venc",
 200         .type = OMAP_DISPLAY_TYPE_VENC,
 201         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 202 };
 203
 204 static struct omap_dss_device *beagle_dss_devices[] = {
 205         &beagle_dvi_device,
 206         &beagle_tv_device,
 207 };
 208
 209 static struct omap_dss_board_info beagle_dss_data = {
 210         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 211         .devices = beagle_dss_devices,
 212         .default_device = &beagle_dvi_device,
 213 };
 214
 215 static struct regulator_consumer_supply beagle_vdac_supply =
 216         REGULATOR_SUPPLY("vdda_dac", "omapdss_venc");
 217
 218 static struct regulator_consumer_supply beagle_vdvi_supplies[] = {
 219         REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
 220         REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
 221 };
 222
 223 static void __init beagle_display_init(void)
 224 {
 225         int r;
 226
 227         r = gpio_request_one(beagle_dvi_device.reset_gpio, GPIOF_OUT_INIT_LOW,
 228                              "DVI reset");
 229         if (r < 0)
 230                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 231 }
 232
 233 #include "sdram-micron-mt46h32m32lf-6.h"
 234
 235 static struct omap2_hsmmc_info mmc[] = {
 236         {
 237                 .mmc            = 1,
 238                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 239                 .gpio_wp        = 29,
 240         },
 241         {}      /* Terminator */
 242 };
 243
 244 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 245         .supply                 = "vmmc",
 246 };
 247
 248 static struct regulator_consumer_supply beagle_vsim_supply = {
 249         .supply                 = "vmmc_aux",
 250 };
 251
 252 static struct gpio_led gpio_leds[];
 253
 254 static int beagle_twl_gpio_setup(struct device *dev,
 255                 unsigned gpio, unsigned ngpio)
 256 {
 257         int r, usb_pwr_level;
 258
 259         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 260                 mmc[0].gpio_wp = -EINVAL;
 261         } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
 262                 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
 263                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 264                 mmc[0].gpio_wp = 23;
 265         } else {
 266                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
 267         }
 268         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 269         mmc[0].gpio_cd = gpio + 0;
 270         omap2_hsmmc_init(mmc);
 271
 272         /* link regulators to MMC adapters */
 273         beagle_vmmc1_supply.dev = mmc[0].dev;
 274         beagle_vsim_supply.dev = mmc[0].dev;
 275
 276         /*
 277          * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
 278          * high / others active low)
 279          * DVI reset GPIO is different between beagle revisions
 280          */
 281         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 282                 usb_pwr_level = GPIOF_OUT_INIT_HIGH;
 283                 beagle_dvi_device.reset_gpio = 129;
 284                 /*
 285                  * gpio + 1 on Xm controls the TFP410's enable line (active low)
 286                  * gpio + 2 control varies depending on the board rev as below:
 287                  * P7/P8 revisions(prototype): Camera EN
 288                  * A2+ revisions (production): LDO (DVI, serial, led blocks)
 289                  */
 290                 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
 291                                      "nDVI_PWR_EN");
 292                 if (r)
 293                         pr_err("%s: unable to configure nDVI_PWR_EN\n",
 294                                 __func__);
 295                 r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
 296                                      "DVI_LDO_EN");
 297                 if (r)
 298                         pr_err("%s: unable to configure DVI_LDO_EN\n",
 299                                 __func__);
 300         } else {
 301                 usb_pwr_level = GPIOF_OUT_INIT_LOW;
 302                 beagle_dvi_device.reset_gpio = 170;
 303                 /*
 304                  * REVISIT: need ehci-omap hooks for external VBUS
 305                  * power switch and overcurrent detect
 306                  */
 307                 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
 308                         pr_err("%s: unable to configure EHCI_nOC\n", __func__);
 309         }
 310
 311         gpio_request_one(gpio + TWL4030_GPIO_MAX, usb_pwr_level, "nEN_USB_PWR");
 312
 313         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 314         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 315
 316         return 0;
 317 }
 318
 319 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 320         .gpio_base      = OMAP_MAX_GPIO_LINES,
 321         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 322         .irq_end        = TWL4030_GPIO_IRQ_END,
 323         .use_leds       = true,
 324         .pullups        = BIT(1),
 325         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 326                                 | BIT(15) | BIT(16) | BIT(17),
 327         .setup          = beagle_twl_gpio_setup,
 328 };
 329
 330 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 331 static struct regulator_init_data beagle_vmmc1 = {
 332         .constraints = {
 333                 .min_uV                 = 1850000,
 334                 .max_uV                 = 3150000,
 335                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 336                                         | REGULATOR_MODE_STANDBY,
 337                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 338                                         | REGULATOR_CHANGE_MODE
 339                                         | REGULATOR_CHANGE_STATUS,
 340         },
 341         .num_consumer_supplies  = 1,
 342         .consumer_supplies      = &beagle_vmmc1_supply,
 343 };
 344
 345 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 346 static struct regulator_init_data beagle_vsim = {
 347         .constraints = {
 348                 .min_uV                 = 1800000,
 349                 .max_uV                 = 3000000,
 350                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 351                                         | REGULATOR_MODE_STANDBY,
 352                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 353                                         | REGULATOR_CHANGE_MODE
 354                                         | REGULATOR_CHANGE_STATUS,
 355         },
 356         .num_consumer_supplies  = 1,
 357         .consumer_supplies      = &beagle_vsim_supply,
 358 };
 359
 360 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 361 static struct regulator_init_data beagle_vdac = {
 362         .constraints = {
 363                 .min_uV                 = 1800000,
 364                 .max_uV                 = 1800000,
 365                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 366                                         | REGULATOR_MODE_STANDBY,
 367                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 368                                         | REGULATOR_CHANGE_STATUS,
 369         },
 370         .num_consumer_supplies  = 1,
 371         .consumer_supplies      = &beagle_vdac_supply,
 372 };
 373
 374 /* VPLL2 for digital video outputs */
 375 static struct regulator_init_data beagle_vpll2 = {
 376         .constraints = {
 377                 .name                   = "VDVI",
 378                 .min_uV                 = 1800000,
 379                 .max_uV                 = 1800000,
 380                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 381                                         | REGULATOR_MODE_STANDBY,
 382                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 383                                         | REGULATOR_CHANGE_STATUS,
 384         },
 385         .num_consumer_supplies  = ARRAY_SIZE(beagle_vdvi_supplies),
 386         .consumer_supplies      = beagle_vdvi_supplies,
 387 };
 388
 389 static struct twl4030_usb_data beagle_usb_data = {
 390         .usb_mode       = T2_USB_MODE_ULPI,
 391 };
 392
 393 static struct twl4030_codec_audio_data beagle_audio_data;
 394
 395 static struct twl4030_codec_data beagle_codec_data = {
 396         .audio_mclk = 26000000,
 397         .audio = &beagle_audio_data,
 398 };
 399
 400 static struct twl4030_platform_data beagle_twldata = {
 401         .irq_base       = TWL4030_IRQ_BASE,
 402         .irq_end        = TWL4030_IRQ_END,
 403
 404         /* platform_data for children goes here */
 405         .usb            = &beagle_usb_data,
 406         .gpio           = &beagle_gpio_data,
 407         .codec          = &beagle_codec_data,
 408         .vmmc1          = &beagle_vmmc1,
 409         .vsim           = &beagle_vsim,
 410         .vdac           = &beagle_vdac,
 411         .vpll2          = &beagle_vpll2,
 412 };
 413
 414 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
 415        {
 416                I2C_BOARD_INFO("eeprom", 0x50),
 417        },
 418 };
 419
 420 static int __init omap3_beagle_i2c_init(void)
 421 {
 422         omap3_pmic_init("twl4030", &beagle_twldata);
 423         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 424          * projector don't work reliably with 400kHz */
 425         omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
 426         return 0;
 427 }
 428
 429 static struct gpio_led gpio_leds[] = {
 430         {
 431                 .name                   = "beagleboard::usr0",
 432                 .default_trigger        = "heartbeat",
 433                 .gpio                   = 150,
 434         },
 435         {
 436                 .name                   = "beagleboard::usr1",
 437                 .default_trigger        = "mmc0",
 438                 .gpio                   = 149,
 439         },
 440         {
 441                 .name                   = "beagleboard::pmu_stat",
 442                 .gpio                   = -EINVAL,      /* gets replaced */
 443                 .active_low             = true,
 444         },
 445 };
 446
 447 static struct gpio_led_platform_data gpio_led_info = {
 448         .leds           = gpio_leds,
 449         .num_leds       = ARRAY_SIZE(gpio_leds),
 450 };
 451
 452 static struct platform_device leds_gpio = {
 453         .name   = "leds-gpio",
 454         .id     = -1,
 455         .dev    = {
 456                 .platform_data  = &gpio_led_info,
 457         },
 458 };
 459
 460 static struct gpio_keys_button gpio_buttons[] = {
 461         {
 462                 .code                   = BTN_EXTRA,
 463                 .gpio                   = 7,
 464                 .desc                   = "user",
 465                 .wakeup                 = 1,
 466         },
 467 };
 468
 469 static struct gpio_keys_platform_data gpio_key_info = {
 470         .buttons        = gpio_buttons,
 471         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 472 };
 473
 474 static struct platform_device keys_gpio = {
 475         .name   = "gpio-keys",
 476         .id     = -1,
 477         .dev    = {
 478                 .platform_data  = &gpio_key_info,
 479         },
 480 };
 481
 482 static void __init omap3_beagle_init_early(void)
 483 {
 484         omap2_init_common_infrastructure();
 485         omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
 486                                   mt46h32m32lf6_sdrc_params);
 487 }
 488
 489 static void __init omap3_beagle_init_irq(void)
 490 {
 491         omap_init_irq();
 492 #ifdef CONFIG_OMAP_32K_TIMER
 493         omap2_gp_clockevent_set_gptimer(12);
 494 #endif
 495 }
 496
 497 static struct platform_device *omap3_beagle_devices[] __initdata = {
 498         &leds_gpio,
 499         &keys_gpio,
 500 };
 501
 502 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 503
 504         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 505         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 506         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 507
 508         .phy_reset  = true,
 509         .reset_gpio_port[0]  = -EINVAL,
 510         .reset_gpio_port[1]  = 147,
 511         .reset_gpio_port[2]  = -EINVAL
 512 };
 513
 514 #ifdef CONFIG_OMAP_MUX
 515 static struct omap_board_mux board_mux[] __initdata = {
 516         { .reg_offset = OMAP_MUX_TERMINATOR },
 517 };
 518 #endif
 519
 520 static void __init beagle_opp_init(void)
 521 {
 522         int r = 0;
 523
 524         /* Initialize the omap3 opp table */
 525         if (omap3_opp_init()) {
 526                 pr_err("%s: opp default init failed\n", __func__);
 527                 return;
 528         }
 529
 530         /* Custom OPP enabled for XM */
 531         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 532                 struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
 533                 struct omap_hwmod *dh = omap_hwmod_lookup("iva");
 534                 struct device *dev;
 535
 536                 if (!mh || !dh) {
 537                         pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
 538                                 __func__, mh, dh);
 539                         return;
 540                 }
 541                 /* Enable MPU 1GHz and lower opps */
 542                 dev = &mh->od->pdev.dev;
 543                 r = opp_enable(dev, 800000000);
 544                 /* TODO: MPU 1GHz needs SR and ABB */
 545
 546                 /* Enable IVA 800MHz and lower opps */
 547                 dev = &dh->od->pdev.dev;
 548                 r |= opp_enable(dev, 660000000);
 549                 /* TODO: DSP 800MHz needs SR and ABB */
 550                 if (r) {
 551                         pr_err("%s: failed to enable higher opp %d\n",
 552                                 __func__, r);
 553                         /*
 554                          * Cleanup - disable the higher freqs - we dont care
 555                          * about the results
 556                          */
 557                         dev = &mh->od->pdev.dev;
 558                         opp_disable(dev, 800000000);
 559                         dev = &dh->od->pdev.dev;
 560                         opp_disable(dev, 660000000);
 561                 }
 562         }
 563         return;
 564 }
 565
 566 static void __init omap3_beagle_init(void)
 567 {
 568         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 569         omap3_beagle_init_rev();
 570         omap3_beagle_i2c_init();
 571         platform_add_devices(omap3_beagle_devices,
 572                         ARRAY_SIZE(omap3_beagle_devices));
 573         omap_display_init(&beagle_dss_data);
 574         omap_serial_init();
 575
 576         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
 577         /* REVISIT leave DVI powered down until it's needed ... */
 578         gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
 579
 580         usb_musb_init(NULL);
 581         usbhs_init(&usbhs_bdata);
 582         omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
 583                              ARRAY_SIZE(omap3beagle_nand_partitions));
 584
 585         /* Ensure msecure is mux'd to be able to set the RTC. */
 586         omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
 587
 588         /* Ensure SDRC pins are mux'd for self-refresh */
 589         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 590         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 591
 592         beagle_display_init();
 593         beagle_opp_init();
 594 }
 595
 596 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 597         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 598         .boot_params    = 0x80000100,
 599         .reserve        = omap_reserve,
 600         .map_io         = omap3_map_io,
 601         .init_early     = omap3_beagle_init_early,
 602         .init_irq       = omap3_beagle_init_irq,
 603         .init_machine   = omap3_beagle_init,
 604         .timer          = &omap_timer,
 605 MACHINE_END