board-dm646x-evm.c 17.6 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814
/*
 * TI DaVinci DM646X EVM board
 *
 * Derived from: arch/arm/mach-davinci/board-evm.c
 * Copyright (C) 2006 Texas Instruments.
 *
 * (C) 2007-2008, MontaVista Software, Inc.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 *
 */

/**************************************************************************
 * Included Files
 **************************************************************************/

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/i2c/pcf857x.h>

#include <media/tvp514x.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/clk.h>
#include <linux/export.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/dm646x.h>
#include <mach/common.h>
#include <mach/serial.h>
#include <mach/i2c.h>
#include <mach/nand.h>
#include <mach/clock.h>
#include <mach/cdce949.h>
#include <mach/aemif.h>

#include "clock.h"

#define NAND_BLOCK_SIZE		SZ_128K

/* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot
 * and U-Boot environment this avoids dependency on any particular combination
 * of UBL, U-Boot or flashing tools etc.
 */
static struct mtd_partition davinci_nand_partitions[] = {
	{
		/* UBL, U-Boot with environment */
		.name		= "bootloader",
		.offset		= MTDPART_OFS_APPEND,
		.size		= 16 * NAND_BLOCK_SIZE,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	}, {
		.name		= "kernel",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_4M,
		.mask_flags	= 0,
	}, {
		.name		= "filesystem",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0,
	}
};

static struct davinci_aemif_timing dm6467tevm_nandflash_timing = {
	.wsetup		= 29,
	.wstrobe	= 24,
	.whold		= 14,
	.rsetup		= 19,
	.rstrobe	= 33,
	.rhold		= 0,
	.ta		= 29,
};

static struct davinci_nand_pdata davinci_nand_data = {
	.mask_cle 		= 0x80000,
	.mask_ale 		= 0x40000,
	.parts			= davinci_nand_partitions,
	.nr_parts		= ARRAY_SIZE(davinci_nand_partitions),
	.ecc_mode		= NAND_ECC_HW,
	.options		= 0,
};

static struct resource davinci_nand_resources[] = {
	{
		.start		= DM646X_ASYNC_EMIF_CS2_SPACE_BASE,
		.end		= DM646X_ASYNC_EMIF_CS2_SPACE_BASE + SZ_32M - 1,
		.flags		= IORESOURCE_MEM,
	}, {
		.start		= DM646X_ASYNC_EMIF_CONTROL_BASE,
		.end		= DM646X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
		.flags		= IORESOURCE_MEM,
	},
};

static struct platform_device davinci_nand_device = {
	.name			= "davinci_nand",
	.id			= 0,

	.num_resources		= ARRAY_SIZE(davinci_nand_resources),
	.resource		= davinci_nand_resources,

	.dev			= {
		.platform_data	= &davinci_nand_data,
	},
};

#if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
    defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
#define HAS_ATA 1
#else
#define HAS_ATA 0
#endif

/* CPLD Register 0 bits to control ATA */
#define DM646X_EVM_ATA_RST		BIT(0)
#define DM646X_EVM_ATA_PWD		BIT(1)

/* CPLD Register 0 Client: used for I/O Control */
static int cpld_reg0_probe(struct i2c_client *client,
			   const struct i2c_device_id *id)
{
	if (HAS_ATA) {
		u8 data;
		struct i2c_msg msg[2] = {
			{
				.addr = client->addr,
				.flags = I2C_M_RD,
				.len = 1,
				.buf = &data,
			},
			{
				.addr = client->addr,
				.flags = 0,
				.len = 1,
				.buf = &data,
			},
		};

		/* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
		i2c_transfer(client->adapter, msg, 1);
		data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
		i2c_transfer(client->adapter, msg + 1, 1);
	}

	return 0;
}

static const struct i2c_device_id cpld_reg_ids[] = {
	{ "cpld_reg0", 0, },
	{ },
};

static struct i2c_driver dm6467evm_cpld_driver = {
	.driver.name	= "cpld_reg0",
	.id_table	= cpld_reg_ids,
	.probe		= cpld_reg0_probe,
};

/* LEDS */

static struct gpio_led evm_leds[] = {
	{ .name = "DS1", .active_low = 1, },
	{ .name = "DS2", .active_low = 1, },
	{ .name = "DS3", .active_low = 1, },
	{ .name = "DS4", .active_low = 1, },
};

static const struct gpio_led_platform_data evm_led_data = {
	.num_leds = ARRAY_SIZE(evm_leds),
	.leds     = evm_leds,
};

static struct platform_device *evm_led_dev;

static int evm_led_setup(struct i2c_client *client, int gpio,
			unsigned int ngpio, void *c)
{
	struct gpio_led *leds = evm_leds;
	int status;

	while (ngpio--) {
		leds->gpio = gpio++;
		leds++;
	};

	evm_led_dev = platform_device_alloc("leds-gpio", 0);
	platform_device_add_data(evm_led_dev, &evm_led_data,
				sizeof(evm_led_data));

	evm_led_dev->dev.parent = &client->dev;
	status = platform_device_add(evm_led_dev);
	if (status < 0) {
		platform_device_put(evm_led_dev);
		evm_led_dev = NULL;
	}
	return status;
}

static int evm_led_teardown(struct i2c_client *client, int gpio,
				unsigned ngpio, void *c)
{
	if (evm_led_dev) {
		platform_device_unregister(evm_led_dev);
		evm_led_dev = NULL;
	}
	return 0;
}

static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };

static int evm_sw_setup(struct i2c_client *client, int gpio,
			unsigned ngpio, void *c)
{
	int status;
	int i;
	char label[10];

	for (i = 0; i < 4; ++i) {
		snprintf(label, 10, "user_sw%d", i);
		status = gpio_request(gpio, label);
		if (status)
			goto out_free;
		evm_sw_gpio[i] = gpio++;

		status = gpio_direction_input(evm_sw_gpio[i]);
		if (status) {
			gpio_free(evm_sw_gpio[i]);
			evm_sw_gpio[i] = -EINVAL;
			goto out_free;
		}

		status = gpio_export(evm_sw_gpio[i], 0);
		if (status) {
			gpio_free(evm_sw_gpio[i]);
			evm_sw_gpio[i] = -EINVAL;
			goto out_free;
		}
	}
	return status;
out_free:
	for (i = 0; i < 4; ++i) {
		if (evm_sw_gpio[i] != -EINVAL) {
			gpio_free(evm_sw_gpio[i]);
			evm_sw_gpio[i] = -EINVAL;
		}
	}
	return status;
}

static int evm_sw_teardown(struct i2c_client *client, int gpio,
			unsigned ngpio, void *c)
{
	int i;

	for (i = 0; i < 4; ++i) {
		if (evm_sw_gpio[i] != -EINVAL) {
			gpio_unexport(evm_sw_gpio[i]);
			gpio_free(evm_sw_gpio[i]);
			evm_sw_gpio[i] = -EINVAL;
		}
	}
	return 0;
}

static int evm_pcf_setup(struct i2c_client *client, int gpio,
			unsigned int ngpio, void *c)
{
	int status;

	if (ngpio < 8)
		return -EINVAL;

	status = evm_sw_setup(client, gpio, 4, c);
	if (status)
		return status;

	return evm_led_setup(client, gpio+4, 4, c);
}

static int evm_pcf_teardown(struct i2c_client *client, int gpio,
			unsigned int ngpio, void *c)
{
	BUG_ON(ngpio < 8);

	evm_sw_teardown(client, gpio, 4, c);
	evm_led_teardown(client, gpio+4, 4, c);

	return 0;
}

static struct pcf857x_platform_data pcf_data = {
	.gpio_base	= DAVINCI_N_GPIO+1,
	.setup		= evm_pcf_setup,
	.teardown	= evm_pcf_teardown,
};

/* Most of this EEPROM is unused, but U-Boot uses some data:
 *  - 0x7f00, 6 bytes Ethernet Address
 *  - ... newer boards may have more
 */

static struct at24_platform_data eeprom_info = {
	.byte_len       = (256*1024) / 8,
	.page_size      = 64,
	.flags          = AT24_FLAG_ADDR16,
	.setup          = davinci_get_mac_addr,
	.context	= (void *)0x7f00,
};

static u8 dm646x_iis_serializer_direction[] = {
       TX_MODE, RX_MODE, INACTIVE_MODE, INACTIVE_MODE,
};

static u8 dm646x_dit_serializer_direction[] = {
       TX_MODE,
};

static struct snd_platform_data dm646x_evm_snd_data[] = {
	{
		.tx_dma_offset  = 0x400,
		.rx_dma_offset  = 0x400,
		.op_mode        = DAVINCI_MCASP_IIS_MODE,
		.num_serializer = ARRAY_SIZE(dm646x_iis_serializer_direction),
		.tdm_slots      = 2,
		.serial_dir     = dm646x_iis_serializer_direction,
		.asp_chan_q     = EVENTQ_0,
	},
	{
		.tx_dma_offset  = 0x400,
		.rx_dma_offset  = 0,
		.op_mode        = DAVINCI_MCASP_DIT_MODE,
		.num_serializer = ARRAY_SIZE(dm646x_dit_serializer_direction),
		.tdm_slots      = 32,
		.serial_dir     = dm646x_dit_serializer_direction,
		.asp_chan_q     = EVENTQ_0,
	},
};

static struct i2c_client *cpld_client;

static int cpld_video_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	cpld_client = client;
	return 0;
}

static int __devexit cpld_video_remove(struct i2c_client *client)
{
	cpld_client = NULL;
	return 0;
}

static const struct i2c_device_id cpld_video_id[] = {
	{ "cpld_video", 0 },
	{ }
};

static struct i2c_driver cpld_video_driver = {
	.driver = {
		.name	= "cpld_video",
	},
	.probe		= cpld_video_probe,
	.remove		= cpld_video_remove,
	.id_table	= cpld_video_id,
};

static void evm_init_cpld(void)
{
	i2c_add_driver(&cpld_video_driver);
}

static struct i2c_board_info __initdata i2c_info[] =  {
	{
		I2C_BOARD_INFO("24c256", 0x50),
		.platform_data  = &eeprom_info,
	},
	{
		I2C_BOARD_INFO("pcf8574a", 0x38),
		.platform_data	= &pcf_data,
	},
	{
		I2C_BOARD_INFO("cpld_reg0", 0x3a),
	},
	{
		I2C_BOARD_INFO("tlv320aic33", 0x18),
	},
	{
		I2C_BOARD_INFO("cpld_video", 0x3b),
	},
	{
		I2C_BOARD_INFO("cdce949", 0x6c),
	},
};

static struct davinci_i2c_platform_data i2c_pdata = {
	.bus_freq       = 100 /* kHz */,
	.bus_delay      = 0 /* usec */,
};

#define VIDCLKCTL_OFFSET	(DAVINCI_SYSTEM_MODULE_BASE + 0x38)
#define VSCLKDIS_OFFSET		(DAVINCI_SYSTEM_MODULE_BASE + 0x6c)
#define VCH2CLK_MASK		(BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
#define VCH2CLK_SYSCLK8		(BIT(9))
#define VCH2CLK_AUXCLK		(BIT(9) | BIT(8))
#define VCH3CLK_MASK		(BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
#define VCH3CLK_SYSCLK8		(BIT(13))
#define VCH3CLK_AUXCLK		(BIT(14) | BIT(13))

#define VIDCH2CLK		(BIT(10))
#define VIDCH3CLK		(BIT(11))
#define VIDCH1CLK		(BIT(4))
#define TVP7002_INPUT		(BIT(4))
#define TVP5147_INPUT		(~BIT(4))
#define VPIF_INPUT_ONE_CHANNEL	(BIT(5))
#define VPIF_INPUT_TWO_CHANNEL	(~BIT(5))
#define TVP5147_CH0		"tvp514x-0"
#define TVP5147_CH1		"tvp514x-1"

static void __iomem *vpif_vidclkctl_reg;
static void __iomem *vpif_vsclkdis_reg;
/* spin lock for updating above registers */
static spinlock_t vpif_reg_lock;

static int set_vpif_clock(int mux_mode, int hd)
{
	unsigned long flags;
	unsigned int value;
	int val = 0;
	int err = 0;

	if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg || !cpld_client)
		return -ENXIO;

	/* disable the clock */
	spin_lock_irqsave(&vpif_reg_lock, flags);
	value = __raw_readl(vpif_vsclkdis_reg);
	value |= (VIDCH3CLK | VIDCH2CLK);
	__raw_writel(value, vpif_vsclkdis_reg);
	spin_unlock_irqrestore(&vpif_reg_lock, flags);

	val = i2c_smbus_read_byte(cpld_client);
	if (val < 0)
		return val;

	if (mux_mode == 1)
		val &= ~0x40;
	else
		val |= 0x40;

	err = i2c_smbus_write_byte(cpld_client, val);
	if (err)
		return err;

	value = __raw_readl(vpif_vidclkctl_reg);
	value &= ~(VCH2CLK_MASK);
	value &= ~(VCH3CLK_MASK);

	if (hd >= 1)
		value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8);
	else
		value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK);

	__raw_writel(value, vpif_vidclkctl_reg);

	spin_lock_irqsave(&vpif_reg_lock, flags);
	value = __raw_readl(vpif_vsclkdis_reg);
	/* enable the clock */
	value &= ~(VIDCH3CLK | VIDCH2CLK);
	__raw_writel(value, vpif_vsclkdis_reg);
	spin_unlock_irqrestore(&vpif_reg_lock, flags);

	return 0;
}

static struct vpif_subdev_info dm646x_vpif_subdev[] = {
	{
		.name	= "adv7343",
		.board_info = {
			I2C_BOARD_INFO("adv7343", 0x2a),
		},
	},
	{
		.name	= "ths7303",
		.board_info = {
			I2C_BOARD_INFO("ths7303", 0x2c),
		},
	},
};

static const char *output[] = {
	"Composite",
	"Component",
	"S-Video",
};

static struct vpif_display_config dm646x_vpif_display_config = {
	.set_clock	= set_vpif_clock,
	.subdevinfo	= dm646x_vpif_subdev,
	.subdev_count	= ARRAY_SIZE(dm646x_vpif_subdev),
	.output		= output,
	.output_count	= ARRAY_SIZE(output),
	.card_name	= "DM646x EVM",
};

/**
 * setup_vpif_input_path()
 * @channel: channel id (0 - CH0, 1 - CH1)
 * @sub_dev_name: ptr sub device name
 *
 * This will set vpif input to capture data from tvp514x or
 * tvp7002.
 */
static int setup_vpif_input_path(int channel, const char *sub_dev_name)
{
	int err = 0;
	int val;

	/* for channel 1, we don't do anything */
	if (channel != 0)
		return 0;

	if (!cpld_client)
		return -ENXIO;

	val = i2c_smbus_read_byte(cpld_client);
	if (val < 0)
		return val;

	if (!strcmp(sub_dev_name, TVP5147_CH0) ||
	    !strcmp(sub_dev_name, TVP5147_CH1))
		val &= TVP5147_INPUT;
	else
		val |= TVP7002_INPUT;

	err = i2c_smbus_write_byte(cpld_client, val);
	if (err)
		return err;
	return 0;
}

/**
 * setup_vpif_input_channel_mode()
 * @mux_mode:  mux mode. 0 - 1 channel or (1) - 2 channel
 *
 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
 */
static int setup_vpif_input_channel_mode(int mux_mode)
{
	unsigned long flags;
	int err = 0;
	int val;
	u32 value;

	if (!vpif_vidclkctl_reg || !cpld_client)
		return -ENXIO;

	val = i2c_smbus_read_byte(cpld_client);
	if (val < 0)
		return val;

	spin_lock_irqsave(&vpif_reg_lock, flags);
	value = __raw_readl(vpif_vidclkctl_reg);
	if (mux_mode) {
		val &= VPIF_INPUT_TWO_CHANNEL;
		value |= VIDCH1CLK;
	} else {
		val |= VPIF_INPUT_ONE_CHANNEL;
		value &= ~VIDCH1CLK;
	}
	__raw_writel(value, vpif_vidclkctl_reg);
	spin_unlock_irqrestore(&vpif_reg_lock, flags);

	err = i2c_smbus_write_byte(cpld_client, val);
	if (err)
		return err;

	return 0;
}

static struct tvp514x_platform_data tvp5146_pdata = {
	.clk_polarity = 0,
	.hs_polarity = 1,
	.vs_polarity = 1
};

#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)

static struct vpif_subdev_info vpif_capture_sdev_info[] = {
	{
		.name	= TVP5147_CH0,
		.board_info = {
			I2C_BOARD_INFO("tvp5146", 0x5d),
			.platform_data = &tvp5146_pdata,
		},
		.input = INPUT_CVBS_VI2B,
		.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
		.can_route = 1,
		.vpif_if = {
			.if_type = VPIF_IF_BT656,
			.hd_pol = 1,
			.vd_pol = 1,
			.fid_pol = 0,
		},
	},
	{
		.name	= TVP5147_CH1,
		.board_info = {
			I2C_BOARD_INFO("tvp5146", 0x5c),
			.platform_data = &tvp5146_pdata,
		},
		.input = INPUT_SVIDEO_VI2C_VI1C,
		.output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
		.can_route = 1,
		.vpif_if = {
			.if_type = VPIF_IF_BT656,
			.hd_pol = 1,
			.vd_pol = 1,
			.fid_pol = 0,
		},
	},
};

static const struct vpif_input dm6467_ch0_inputs[] = {
	{
		.input = {
			.index = 0,
			.name = "Composite",
			.type = V4L2_INPUT_TYPE_CAMERA,
			.std = TVP514X_STD_ALL,
		},
		.subdev_name = TVP5147_CH0,
	},
};

static const struct vpif_input dm6467_ch1_inputs[] = {
       {
		.input = {
			.index = 0,
			.name = "S-Video",
			.type = V4L2_INPUT_TYPE_CAMERA,
			.std = TVP514X_STD_ALL,
		},
		.subdev_name = TVP5147_CH1,
	},
};

static struct vpif_capture_config dm646x_vpif_capture_cfg = {
	.setup_input_path = setup_vpif_input_path,
	.setup_input_channel_mode = setup_vpif_input_channel_mode,
	.subdev_info = vpif_capture_sdev_info,
	.subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
	.chan_config[0] = {
		.inputs = dm6467_ch0_inputs,
		.input_count = ARRAY_SIZE(dm6467_ch0_inputs),
	},
	.chan_config[1] = {
		.inputs = dm6467_ch1_inputs,
		.input_count = ARRAY_SIZE(dm6467_ch1_inputs),
	},
};

static void __init evm_init_video(void)
{
	vpif_vidclkctl_reg = ioremap(VIDCLKCTL_OFFSET, 4);
	vpif_vsclkdis_reg = ioremap(VSCLKDIS_OFFSET, 4);
	if (!vpif_vidclkctl_reg || !vpif_vsclkdis_reg) {
		pr_err("Can't map VPIF VIDCLKCTL or VSCLKDIS registers\n");
		return;
	}
	spin_lock_init(&vpif_reg_lock);

	dm646x_setup_vpif(&dm646x_vpif_display_config,
			  &dm646x_vpif_capture_cfg);
}

static void __init evm_init_i2c(void)
{
	davinci_init_i2c(&i2c_pdata);
	i2c_add_driver(&dm6467evm_cpld_driver);
	i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
	evm_init_cpld();
	evm_init_video();
}

#define CDCE949_XIN_RATE	27000000

/* CDCE949 support - "lpsc" field is overridden to work as clock number */
static struct clk cdce_clk_in = {
	.name	= "cdce_xin",
	.rate	= CDCE949_XIN_RATE,
};

static struct clk_lookup cdce_clks[] = {
	CLK(NULL, "xin", &cdce_clk_in),
	CLK(NULL, NULL, NULL),
};

static void __init cdce_clk_init(void)
{
	struct clk_lookup *c;
	struct clk *clk;

	for (c = cdce_clks; c->clk; c++) {
		clk = c->clk;
		clkdev_add(c);
		clk_register(clk);
	}
}

#define DM6467T_EVM_REF_FREQ		33000000

static void __init davinci_map_io(void)
{
	dm646x_init();

	if (machine_is_davinci_dm6467tevm())
		davinci_set_refclk_rate(DM6467T_EVM_REF_FREQ);

	cdce_clk_init();
}

static struct davinci_uart_config uart_config __initdata = {
	.enabled_uarts = (1 << 0),
};

#define DM646X_EVM_PHY_ID		"0:01"
/*
 * The following EDMA channels/slots are not being used by drivers (for
 * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
 * reserved for codecs on the DSP side.
 */
static const s16 dm646x_dma_rsv_chans[][2] = {
	/* (offset, number) */
	{ 0,  4},
	{13,  3},
	{24,  4},
	{30,  2},
	{54,  3},
	{-1, -1}
};

static const s16 dm646x_dma_rsv_slots[][2] = {
	/* (offset, number) */
	{ 0,  4},
	{13,  3},
	{24,  4},
	{30,  2},
	{54,  3},
	{128, 384},
	{-1, -1}
};

static struct edma_rsv_info dm646x_edma_rsv[] = {
	{
		.rsv_chans	= dm646x_dma_rsv_chans,
		.rsv_slots	= dm646x_dma_rsv_slots,
	},
};

static __init void evm_init(void)
{
	struct davinci_soc_info *soc_info = &davinci_soc_info;

	evm_init_i2c();
	davinci_serial_init(&uart_config);
	dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
	dm646x_init_mcasp1(&dm646x_evm_snd_data[1]);

	if (machine_is_davinci_dm6467tevm())
		davinci_nand_data.timing = &dm6467tevm_nandflash_timing;

	platform_device_register(&davinci_nand_device);

	dm646x_init_edma(dm646x_edma_rsv);

	if (HAS_ATA)
		davinci_init_ide();

	soc_info->emac_pdata->phy_id = DM646X_EVM_PHY_ID;
}

MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
	.atag_offset  = 0x100,
	.map_io       = davinci_map_io,
	.init_irq     = davinci_irq_init,
	.timer        = &davinci_timer,
	.init_machine = evm_init,
	.dma_zone_size	= SZ_128M,
	.restart	= davinci_restart,
MACHINE_END

MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM")
	.atag_offset  = 0x100,
	.map_io       = davinci_map_io,
	.init_irq     = davinci_irq_init,
	.timer        = &davinci_timer,
	.init_machine = evm_init,
	.dma_zone_size	= SZ_128M,
	.restart	= davinci_restart,
MACHINE_END