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