arch/arm/mach-davinci/board-dm644x-evm.c

   1 /*
   2  * TI DaVinci EVM board support
   3  *
   4  * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
   5  *
   6  * 2007 (c) MontaVista Software, Inc. This file is licensed under
   7  * the terms of the GNU General Public License version 2. This program
   8  * is licensed "as is" without any warranty of any kind, whether express
   9  * or implied.
  10  */
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/dma-mapping.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/gpio.h>
  16 #include <linux/i2c.h>
  17 #include <linux/i2c/pcf857x.h>
  18 #include <linux/i2c/at24.h>
  19 #include <linux/mtd/mtd.h>
  20 #include <linux/mtd/nand.h>
  21 #include <linux/mtd/partitions.h>
  22 #include <linux/mtd/physmap.h>
  23 #include <linux/phy.h>
  24 #include <linux/clk.h>
  25 #include <linux/videodev2.h>
  26 #include <linux/export.h>
  27
  28 #include <media/tvp514x.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32
  33 #include <mach/dm644x.h>
  34 #include <mach/common.h>
  35 #include <mach/i2c.h>
  36 #include <mach/serial.h>
  37 #include <mach/mux.h>
  38 #include <mach/nand.h>
  39 #include <mach/mmc.h>
  40 #include <mach/usb.h>
  41 #include <mach/aemif.h>
  42
  43 #define DM644X_EVM_PHY_ID               "davinci_mdio-0:01"
  44 #define LXT971_PHY_ID   (0x001378e2)
  45 #define LXT971_PHY_MASK (0xfffffff0)
  46
  47 static struct mtd_partition davinci_evm_norflash_partitions[] = {
  48         /* bootloader (UBL, U-Boot, etc) in first 5 sectors */
  49         {
  50                 .name           = "bootloader",
  51                 .offset         = 0,
  52                 .size           = 5 * SZ_64K,
  53                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  54         },
  55         /* bootloader params in the next 1 sectors */
  56         {
  57                 .name           = "params",
  58                 .offset         = MTDPART_OFS_APPEND,
  59                 .size           = SZ_64K,
  60                 .mask_flags     = 0,
  61         },
  62         /* kernel */
  63         {
  64                 .name           = "kernel",
  65                 .offset         = MTDPART_OFS_APPEND,
  66                 .size           = SZ_2M,
  67                 .mask_flags     = 0
  68         },
  69         /* file system */
  70         {
  71                 .name           = "filesystem",
  72                 .offset         = MTDPART_OFS_APPEND,
  73                 .size           = MTDPART_SIZ_FULL,
  74                 .mask_flags     = 0
  75         }
  76 };
  77
  78 static struct physmap_flash_data davinci_evm_norflash_data = {
  79         .width          = 2,
  80         .parts          = davinci_evm_norflash_partitions,
  81         .nr_parts       = ARRAY_SIZE(davinci_evm_norflash_partitions),
  82 };
  83
  84 /* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
  85  * limits addresses to 16M, so using addresses past 16M will wrap */
  86 static struct resource davinci_evm_norflash_resource = {
  87         .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
  88         .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
  89         .flags          = IORESOURCE_MEM,
  90 };
  91
  92 static struct platform_device davinci_evm_norflash_device = {
  93         .name           = "physmap-flash",
  94         .id             = 0,
  95         .dev            = {
  96                 .platform_data  = &davinci_evm_norflash_data,
  97         },
  98         .num_resources  = 1,
  99         .resource       = &davinci_evm_norflash_resource,
 100 };
 101
 102 /* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks).
 103  * It may used instead of the (default) NOR chip to boot, using TI's
 104  * tools to install the secondary boot loader (UBL) and U-Boot.
 105  */
 106 static struct mtd_partition davinci_evm_nandflash_partition[] = {
 107         /* Bootloader layout depends on whose u-boot is installed, but we
 108          * can hide all the details.
 109          *  - block 0 for u-boot environment ... in mainline u-boot
 110          *  - block 1 for UBL (plus up to four backup copies in blocks 2..5)
 111          *  - blocks 6...? for u-boot
 112          *  - blocks 16..23 for u-boot environment ... in TI's u-boot
 113          */
 114         {
 115                 .name           = "bootloader",
 116                 .offset         = 0,
 117                 .size           = SZ_256K + SZ_128K,
 118                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 119         },
 120         /* Kernel */
 121         {
 122                 .name           = "kernel",
 123                 .offset         = MTDPART_OFS_APPEND,
 124                 .size           = SZ_4M,
 125                 .mask_flags     = 0,
 126         },
 127         /* File system (older GIT kernels started this on the 5MB mark) */
 128         {
 129                 .name           = "filesystem",
 130                 .offset         = MTDPART_OFS_APPEND,
 131                 .size           = MTDPART_SIZ_FULL,
 132                 .mask_flags     = 0,
 133         }
 134         /* A few blocks at end hold a flash BBT ... created by TI's CCS
 135          * using flashwriter_nand.out, but ignored by TI's versions of
 136          * Linux and u-boot.  We boot faster by using them.
 137          */
 138 };
 139
 140 static struct davinci_aemif_timing davinci_evm_nandflash_timing = {
 141         .wsetup         = 20,
 142         .wstrobe        = 40,
 143         .whold          = 20,
 144         .rsetup         = 10,
 145         .rstrobe        = 40,
 146         .rhold          = 10,
 147         .ta             = 40,
 148 };
 149
 150 static struct davinci_nand_pdata davinci_evm_nandflash_data = {
 151         .parts          = davinci_evm_nandflash_partition,
 152         .nr_parts       = ARRAY_SIZE(davinci_evm_nandflash_partition),
 153         .ecc_mode       = NAND_ECC_HW,
 154         .bbt_options    = NAND_BBT_USE_FLASH,
 155         .timing         = &davinci_evm_nandflash_timing,
 156 };
 157
 158 static struct resource davinci_evm_nandflash_resource[] = {
 159         {
 160                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
 161                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 162                 .flags          = IORESOURCE_MEM,
 163         }, {
 164                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 165                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 166                 .flags          = IORESOURCE_MEM,
 167         },
 168 };
 169
 170 static struct platform_device davinci_evm_nandflash_device = {
 171         .name           = "davinci_nand",
 172         .id             = 0,
 173         .dev            = {
 174                 .platform_data  = &davinci_evm_nandflash_data,
 175         },
 176         .num_resources  = ARRAY_SIZE(davinci_evm_nandflash_resource),
 177         .resource       = davinci_evm_nandflash_resource,
 178 };
 179
 180 static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
 181
 182 static struct platform_device davinci_fb_device = {
 183         .name           = "davincifb",
 184         .id             = -1,
 185         .dev = {
 186                 .dma_mask               = &davinci_fb_dma_mask,
 187                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 188         },
 189         .num_resources = 0,
 190 };
 191
 192 static struct tvp514x_platform_data tvp5146_pdata = {
 193         .clk_polarity = 0,
 194         .hs_polarity = 1,
 195         .vs_polarity = 1
 196 };
 197
 198 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 199 /* Inputs available at the TVP5146 */
 200 static struct v4l2_input tvp5146_inputs[] = {
 201         {
 202                 .index = 0,
 203                 .name = "Composite",
 204                 .type = V4L2_INPUT_TYPE_CAMERA,
 205                 .std = TVP514X_STD_ALL,
 206         },
 207         {
 208                 .index = 1,
 209                 .name = "S-Video",
 210                 .type = V4L2_INPUT_TYPE_CAMERA,
 211                 .std = TVP514X_STD_ALL,
 212         },
 213 };
 214
 215 /*
 216  * this is the route info for connecting each input to decoder
 217  * ouput that goes to vpfe. There is a one to one correspondence
 218  * with tvp5146_inputs
 219  */
 220 static struct vpfe_route tvp5146_routes[] = {
 221         {
 222                 .input = INPUT_CVBS_VI2B,
 223                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 224         },
 225         {
 226                 .input = INPUT_SVIDEO_VI2C_VI1C,
 227                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 228         },
 229 };
 230
 231 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 232         {
 233                 .name = "tvp5146",
 234                 .grp_id = 0,
 235                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 236                 .inputs = tvp5146_inputs,
 237                 .routes = tvp5146_routes,
 238                 .can_route = 1,
 239                 .ccdc_if_params = {
 240                         .if_type = VPFE_BT656,
 241                         .hdpol = VPFE_PINPOL_POSITIVE,
 242                         .vdpol = VPFE_PINPOL_POSITIVE,
 243                 },
 244                 .board_info = {
 245                         I2C_BOARD_INFO("tvp5146", 0x5d),
 246                         .platform_data = &tvp5146_pdata,
 247                 },
 248         },
 249 };
 250
 251 static struct vpfe_config vpfe_cfg = {
 252         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 253         .i2c_adapter_id = 1,
 254         .sub_devs = vpfe_sub_devs,
 255         .card_name = "DM6446 EVM",
 256         .ccdc = "DM6446 CCDC",
 257 };
 258
 259 static struct platform_device rtc_dev = {
 260         .name           = "rtc_davinci_evm",
 261         .id             = -1,
 262 };
 263
 264 static struct snd_platform_data dm644x_evm_snd_data;
 265
 266 /*----------------------------------------------------------------------*/
 267
 268 /*
 269  * I2C GPIO expanders
 270  */
 271
 272 #define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
 273
 274
 275 /* U2 -- LEDs */
 276
 277 static struct gpio_led evm_leds[] = {
 278         { .name = "DS8", .active_low = 1,
 279                 .default_trigger = "heartbeat", },
 280         { .name = "DS7", .active_low = 1, },
 281         { .name = "DS6", .active_low = 1, },
 282         { .name = "DS5", .active_low = 1, },
 283         { .name = "DS4", .active_low = 1, },
 284         { .name = "DS3", .active_low = 1, },
 285         { .name = "DS2", .active_low = 1,
 286                 .default_trigger = "mmc0", },
 287         { .name = "DS1", .active_low = 1,
 288                 .default_trigger = "ide-disk", },
 289 };
 290
 291 static const struct gpio_led_platform_data evm_led_data = {
 292         .num_leds       = ARRAY_SIZE(evm_leds),
 293         .leds           = evm_leds,
 294 };
 295
 296 static struct platform_device *evm_led_dev;
 297
 298 static int
 299 evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 300 {
 301         struct gpio_led *leds = evm_leds;
 302         int status;
 303
 304         while (ngpio--) {
 305                 leds->gpio = gpio++;
 306                 leds++;
 307         }
 308
 309         /* what an extremely annoying way to be forced to handle
 310          * device unregistration ...
 311          */
 312         evm_led_dev = platform_device_alloc("leds-gpio", 0);
 313         platform_device_add_data(evm_led_dev,
 314                         &evm_led_data, sizeof evm_led_data);
 315
 316         evm_led_dev->dev.parent = &client->dev;
 317         status = platform_device_add(evm_led_dev);
 318         if (status < 0) {
 319                 platform_device_put(evm_led_dev);
 320                 evm_led_dev = NULL;
 321         }
 322         return status;
 323 }
 324
 325 static int
 326 evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 327 {
 328         if (evm_led_dev) {
 329                 platform_device_unregister(evm_led_dev);
 330                 evm_led_dev = NULL;
 331         }
 332         return 0;
 333 }
 334
 335 static struct pcf857x_platform_data pcf_data_u2 = {
 336         .gpio_base      = PCF_Uxx_BASE(0),
 337         .setup          = evm_led_setup,
 338         .teardown       = evm_led_teardown,
 339 };
 340
 341
 342 /* U18 - A/V clock generator and user switch */
 343
 344 static int sw_gpio;
 345
 346 static ssize_t
 347 sw_show(struct device *d, struct device_attribute *a, char *buf)
 348 {
 349         char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
 350
 351         strcpy(buf, s);
 352         return strlen(s);
 353 }
 354
 355 static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
 356
 357 static int
 358 evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 359 {
 360         int     status;
 361
 362         /* export dip switch option */
 363         sw_gpio = gpio + 7;
 364         status = gpio_request(sw_gpio, "user_sw");
 365         if (status == 0)
 366                 status = gpio_direction_input(sw_gpio);
 367         if (status == 0)
 368                 status = device_create_file(&client->dev, &dev_attr_user_sw);
 369         else
 370                 gpio_free(sw_gpio);
 371         if (status != 0)
 372                 sw_gpio = -EINVAL;
 373
 374         /* audio PLL:  48 kHz (vs 44.1 or 32), single rate (vs double) */
 375         gpio_request(gpio + 3, "pll_fs2");
 376         gpio_direction_output(gpio + 3, 0);
 377
 378         gpio_request(gpio + 2, "pll_fs1");
 379         gpio_direction_output(gpio + 2, 0);
 380
 381         gpio_request(gpio + 1, "pll_sr");
 382         gpio_direction_output(gpio + 1, 0);
 383
 384         return 0;
 385 }
 386
 387 static int
 388 evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 389 {
 390         gpio_free(gpio + 1);
 391         gpio_free(gpio + 2);
 392         gpio_free(gpio + 3);
 393
 394         if (sw_gpio > 0) {
 395                 device_remove_file(&client->dev, &dev_attr_user_sw);
 396                 gpio_free(sw_gpio);
 397         }
 398         return 0;
 399 }
 400
 401 static struct pcf857x_platform_data pcf_data_u18 = {
 402         .gpio_base      = PCF_Uxx_BASE(1),
 403         .n_latch        = (1 << 3) | (1 << 2) | (1 << 1),
 404         .setup          = evm_u18_setup,
 405         .teardown       = evm_u18_teardown,
 406 };
 407
 408
 409 /* U35 - various I/O signals used to manage USB, CF, ATA, etc */
 410
 411 static int
 412 evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 413 {
 414         /* p0 = nDRV_VBUS (initial:  don't supply it) */
 415         gpio_request(gpio + 0, "nDRV_VBUS");
 416         gpio_direction_output(gpio + 0, 1);
 417
 418         /* p1 = VDDIMX_EN */
 419         gpio_request(gpio + 1, "VDDIMX_EN");
 420         gpio_direction_output(gpio + 1, 1);
 421
 422         /* p2 = VLYNQ_EN */
 423         gpio_request(gpio + 2, "VLYNQ_EN");
 424         gpio_direction_output(gpio + 2, 1);
 425
 426         /* p3 = n3V3_CF_RESET (initial: stay in reset) */
 427         gpio_request(gpio + 3, "nCF_RESET");
 428         gpio_direction_output(gpio + 3, 0);
 429
 430         /* (p4 unused) */
 431
 432         /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
 433         gpio_request(gpio + 5, "WLAN_RESET");
 434         gpio_direction_output(gpio + 5, 1);
 435
 436         /* p6 = nATA_SEL (initial: select) */
 437         gpio_request(gpio + 6, "nATA_SEL");
 438         gpio_direction_output(gpio + 6, 0);
 439
 440         /* p7 = nCF_SEL (initial: deselect) */
 441         gpio_request(gpio + 7, "nCF_SEL");
 442         gpio_direction_output(gpio + 7, 1);
 443
 444         return 0;
 445 }
 446
 447 static int
 448 evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 449 {
 450         gpio_free(gpio + 7);
 451         gpio_free(gpio + 6);
 452         gpio_free(gpio + 5);
 453         gpio_free(gpio + 3);
 454         gpio_free(gpio + 2);
 455         gpio_free(gpio + 1);
 456         gpio_free(gpio + 0);
 457         return 0;
 458 }
 459
 460 static struct pcf857x_platform_data pcf_data_u35 = {
 461         .gpio_base      = PCF_Uxx_BASE(2),
 462         .setup          = evm_u35_setup,
 463         .teardown       = evm_u35_teardown,
 464 };
 465
 466 /*----------------------------------------------------------------------*/
 467
 468 /* Most of this EEPROM is unused, but U-Boot uses some data:
 469  *  - 0x7f00, 6 bytes Ethernet Address
 470  *  - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
 471  *  - ... newer boards may have more
 472  */
 473
 474 static struct at24_platform_data eeprom_info = {
 475         .byte_len       = (256*1024) / 8,
 476         .page_size      = 64,
 477         .flags          = AT24_FLAG_ADDR16,
 478         .setup          = davinci_get_mac_addr,
 479         .context        = (void *)0x7f00,
 480 };
 481
 482 /*
 483  * MSP430 supports RTC, card detection, input from IR remote, and
 484  * a bit more.  It triggers interrupts on GPIO(7) from pressing
 485  * buttons on the IR remote, and for card detect switches.
 486  */
 487 static struct i2c_client *dm6446evm_msp;
 488
 489 static int dm6446evm_msp_probe(struct i2c_client *client,
 490                 const struct i2c_device_id *id)
 491 {
 492         dm6446evm_msp = client;
 493         return 0;
 494 }
 495
 496 static int dm6446evm_msp_remove(struct i2c_client *client)
 497 {
 498         dm6446evm_msp = NULL;
 499         return 0;
 500 }
 501
 502 static const struct i2c_device_id dm6446evm_msp_ids[] = {
 503         { "dm6446evm_msp", 0, },
 504         { /* end of list */ },
 505 };
 506
 507 static struct i2c_driver dm6446evm_msp_driver = {
 508         .driver.name    = "dm6446evm_msp",
 509         .id_table       = dm6446evm_msp_ids,
 510         .probe          = dm6446evm_msp_probe,
 511         .remove         = dm6446evm_msp_remove,
 512 };
 513
 514 static int dm6444evm_msp430_get_pins(void)
 515 {
 516         static const char txbuf[2] = { 2, 4, };
 517         char buf[4];
 518         struct i2c_msg msg[2] = {
 519                 {
 520                         .addr = dm6446evm_msp->addr,
 521                         .flags = 0,
 522                         .len = 2,
 523                         .buf = (void __force *)txbuf,
 524                 },
 525                 {
 526                         .addr = dm6446evm_msp->addr,
 527                         .flags = I2C_M_RD,
 528                         .len = 4,
 529                         .buf = buf,
 530                 },
 531         };
 532         int status;
 533
 534         if (!dm6446evm_msp)
 535                 return -ENXIO;
 536
 537         /* Command 4 == get input state, returns port 2 and port3 data
 538          *   S Addr W [A] len=2 [A] cmd=4 [A]
 539          *   RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P
 540          */
 541         status = i2c_transfer(dm6446evm_msp->adapter, msg, 2);
 542         if (status < 0)
 543                 return status;
 544
 545         dev_dbg(&dm6446evm_msp->dev,
 546                 "PINS: %02x %02x %02x %02x\n",
 547                 buf[0], buf[1], buf[2], buf[3]);
 548
 549         return (buf[3] << 8) | buf[2];
 550 }
 551
 552 static int dm6444evm_mmc_get_cd(int module)
 553 {
 554         int status = dm6444evm_msp430_get_pins();
 555
 556         return (status < 0) ? status : !(status & BIT(1));
 557 }
 558
 559 static int dm6444evm_mmc_get_ro(int module)
 560 {
 561         int status = dm6444evm_msp430_get_pins();
 562
 563         return (status < 0) ? status : status & BIT(6 + 8);
 564 }
 565
 566 static struct davinci_mmc_config dm6446evm_mmc_config = {
 567         .get_cd         = dm6444evm_mmc_get_cd,
 568         .get_ro         = dm6444evm_mmc_get_ro,
 569         .wires          = 4,
 570         .version        = MMC_CTLR_VERSION_1
 571 };
 572
 573 static struct i2c_board_info __initdata i2c_info[] =  {
 574         {
 575                 I2C_BOARD_INFO("dm6446evm_msp", 0x23),
 576         },
 577         {
 578                 I2C_BOARD_INFO("pcf8574", 0x38),
 579                 .platform_data  = &pcf_data_u2,
 580         },
 581         {
 582                 I2C_BOARD_INFO("pcf8574", 0x39),
 583                 .platform_data  = &pcf_data_u18,
 584         },
 585         {
 586                 I2C_BOARD_INFO("pcf8574", 0x3a),
 587                 .platform_data  = &pcf_data_u35,
 588         },
 589         {
 590                 I2C_BOARD_INFO("24c256", 0x50),
 591                 .platform_data  = &eeprom_info,
 592         },
 593         {
 594                 I2C_BOARD_INFO("tlv320aic33", 0x1b),
 595         },
 596 };
 597
 598 /* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
 599  * which requires 100 usec of idle bus after i2c writes sent to it.
 600  */
 601 static struct davinci_i2c_platform_data i2c_pdata = {
 602         .bus_freq       = 20 /* kHz */,
 603         .bus_delay      = 100 /* usec */,
 604         .sda_pin        = 44,
 605         .scl_pin        = 43,
 606 };
 607
 608 static void __init evm_init_i2c(void)
 609 {
 610         davinci_init_i2c(&i2c_pdata);
 611         i2c_add_driver(&dm6446evm_msp_driver);
 612         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 613 }
 614
 615 static struct platform_device *davinci_evm_devices[] __initdata = {
 616         &davinci_fb_device,
 617         &rtc_dev,
 618 };
 619
 620 static struct davinci_uart_config uart_config __initdata = {
 621         .enabled_uarts = (1 << 0),
 622 };
 623
 624 static void __init
 625 davinci_evm_map_io(void)
 626 {
 627         /* setup input configuration for VPFE input devices */
 628         dm644x_set_vpfe_config(&vpfe_cfg);
 629         dm644x_init();
 630 }
 631
 632 static int davinci_phy_fixup(struct phy_device *phydev)
 633 {
 634         unsigned int control;
 635         /* CRITICAL: Fix for increasing PHY signal drive strength for
 636          * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY
 637          * signal strength was low causing  TX to fail randomly. The
 638          * fix is to Set bit 11 (Increased MII drive strength) of PHY
 639          * register 26 (Digital Config register) on this phy. */
 640         control = phy_read(phydev, 26);
 641         phy_write(phydev, 26, (control | 0x800));
 642         return 0;
 643 }
 644
 645 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
 646     defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
 647 #define HAS_ATA 1
 648 #else
 649 #define HAS_ATA 0
 650 #endif
 651
 652 #if defined(CONFIG_MTD_PHYSMAP) || \
 653     defined(CONFIG_MTD_PHYSMAP_MODULE)
 654 #define HAS_NOR 1
 655 #else
 656 #define HAS_NOR 0
 657 #endif
 658
 659 #if defined(CONFIG_MTD_NAND_DAVINCI) || \
 660     defined(CONFIG_MTD_NAND_DAVINCI_MODULE)
 661 #define HAS_NAND 1
 662 #else
 663 #define HAS_NAND 0
 664 #endif
 665
 666 static __init void davinci_evm_init(void)
 667 {
 668         struct clk *aemif_clk;
 669         struct davinci_soc_info *soc_info = &davinci_soc_info;
 670
 671         aemif_clk = clk_get(NULL, "aemif");
 672         clk_enable(aemif_clk);
 673
 674         if (HAS_ATA) {
 675                 if (HAS_NAND || HAS_NOR)
 676                         pr_warning("WARNING: both IDE and Flash are "
 677                                 "enabled, but they share AEMIF pins.\n"
 678                                 "\tDisable IDE for NAND/NOR support.\n");
 679                 davinci_init_ide();
 680         } else if (HAS_NAND || HAS_NOR) {
 681                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 682                 davinci_cfg_reg(DM644X_ATAEN_DISABLE);
 683
 684                 /* only one device will be jumpered and detected */
 685                 if (HAS_NAND) {
 686                         platform_device_register(&davinci_evm_nandflash_device);
 687                         evm_leds[7].default_trigger = "nand-disk";
 688                         if (HAS_NOR)
 689                                 pr_warning("WARNING: both NAND and NOR flash "
 690                                         "are enabled; disable one of them.\n");
 691                 } else if (HAS_NOR)
 692                         platform_device_register(&davinci_evm_norflash_device);
 693         }
 694
 695         platform_add_devices(davinci_evm_devices,
 696                              ARRAY_SIZE(davinci_evm_devices));
 697         evm_init_i2c();
 698
 699         davinci_setup_mmc(0, &dm6446evm_mmc_config);
 700
 701         davinci_serial_init(&uart_config);
 702         dm644x_init_asp(&dm644x_evm_snd_data);
 703
 704         /* irlml6401 switches over 1A, in under 8 msec */
 705         davinci_setup_usb(1000, 8);
 706
 707         soc_info->emac_pdata->phy_id = DM644X_EVM_PHY_ID;
 708         /* Register the fixup for PHY on DaVinci */
 709         phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK,
 710                                         davinci_phy_fixup);
 711
 712 }
 713
 714 MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
 715         /* Maintainer: MontaVista Software <source@mvista.com> */
 716         .atag_offset  = 0x100,
 717         .map_io       = davinci_evm_map_io,
 718         .init_irq     = davinci_irq_init,
 719         .timer        = &davinci_timer,
 720         .init_machine = davinci_evm_init,
 721         .dma_zone_size  = SZ_128M,
 722         .restart        = davinci_restart,
 723 MACHINE_END