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
  41 #define DM644X_EVM_PHY_MASK             (0x2)
  42 #define DM644X_EVM_MDIO_FREQUENCY       (2200000) /* PHY bus frequency */
  43
  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_nand_pdata davinci_evm_nandflash_data = {
 141         .parts          = davinci_evm_nandflash_partition,
 142         .nr_parts       = ARRAY_SIZE(davinci_evm_nandflash_partition),
 143         .ecc_mode       = NAND_ECC_HW,
 144         .options        = NAND_USE_FLASH_BBT,
 145 };
 146
 147 static struct resource davinci_evm_nandflash_resource[] = {
 148         {
 149                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
 150                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 151                 .flags          = IORESOURCE_MEM,
 152         }, {
 153                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 154                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 155                 .flags          = IORESOURCE_MEM,
 156         },
 157 };
 158
 159 static struct platform_device davinci_evm_nandflash_device = {
 160         .name           = "davinci_nand",
 161         .id             = 0,
 162         .dev            = {
 163                 .platform_data  = &davinci_evm_nandflash_data,
 164         },
 165         .num_resources  = ARRAY_SIZE(davinci_evm_nandflash_resource),
 166         .resource       = davinci_evm_nandflash_resource,
 167 };
 168
 169 static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
 170
 171 static struct platform_device davinci_fb_device = {
 172         .name           = "davincifb",
 173         .id             = -1,
 174         .dev = {
 175                 .dma_mask               = &davinci_fb_dma_mask,
 176                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 177         },
 178         .num_resources = 0,
 179 };
 180
 181 static struct tvp514x_platform_data tvp5146_pdata = {
 182         .clk_polarity = 0,
 183         .hs_polarity = 1,
 184         .vs_polarity = 1
 185 };
 186
 187 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 188 /* Inputs available at the TVP5146 */
 189 static struct v4l2_input tvp5146_inputs[] = {
 190         {
 191                 .index = 0,
 192                 .name = "Composite",
 193                 .type = V4L2_INPUT_TYPE_CAMERA,
 194                 .std = TVP514X_STD_ALL,
 195         },
 196         {
 197                 .index = 1,
 198                 .name = "S-Video",
 199                 .type = V4L2_INPUT_TYPE_CAMERA,
 200                 .std = TVP514X_STD_ALL,
 201         },
 202 };
 203
 204 /*
 205  * this is the route info for connecting each input to decoder
 206  * ouput that goes to vpfe. There is a one to one correspondence
 207  * with tvp5146_inputs
 208  */
 209 static struct vpfe_route tvp5146_routes[] = {
 210         {
 211                 .input = INPUT_CVBS_VI2B,
 212                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 213         },
 214         {
 215                 .input = INPUT_SVIDEO_VI2C_VI1C,
 216                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 217         },
 218 };
 219
 220 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 221         {
 222                 .name = "tvp5146",
 223                 .grp_id = 0,
 224                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 225                 .inputs = tvp5146_inputs,
 226                 .routes = tvp5146_routes,
 227                 .can_route = 1,
 228                 .ccdc_if_params = {
 229                         .if_type = VPFE_BT656,
 230                         .hdpol = VPFE_PINPOL_POSITIVE,
 231                         .vdpol = VPFE_PINPOL_POSITIVE,
 232                 },
 233                 .board_info = {
 234                         I2C_BOARD_INFO("tvp5146", 0x5d),
 235                         .platform_data = &tvp5146_pdata,
 236                 },
 237         },
 238 };
 239
 240 static struct vpfe_config vpfe_cfg = {
 241         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 242         .i2c_adapter_id = 1,
 243         .sub_devs = vpfe_sub_devs,
 244         .card_name = "DM6446 EVM",
 245         .ccdc = "DM6446 CCDC",
 246 };
 247
 248 static struct platform_device rtc_dev = {
 249         .name           = "rtc_davinci_evm",
 250         .id             = -1,
 251 };
 252
 253 static struct snd_platform_data dm644x_evm_snd_data;
 254
 255 /*----------------------------------------------------------------------*/
 256
 257 /*
 258  * I2C GPIO expanders
 259  */
 260
 261 #define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
 262
 263
 264 /* U2 -- LEDs */
 265
 266 static struct gpio_led evm_leds[] = {
 267         { .name = "DS8", .active_low = 1,
 268                 .default_trigger = "heartbeat", },
 269         { .name = "DS7", .active_low = 1, },
 270         { .name = "DS6", .active_low = 1, },
 271         { .name = "DS5", .active_low = 1, },
 272         { .name = "DS4", .active_low = 1, },
 273         { .name = "DS3", .active_low = 1, },
 274         { .name = "DS2", .active_low = 1,
 275                 .default_trigger = "mmc0", },
 276         { .name = "DS1", .active_low = 1,
 277                 .default_trigger = "ide-disk", },
 278 };
 279
 280 static const struct gpio_led_platform_data evm_led_data = {
 281         .num_leds       = ARRAY_SIZE(evm_leds),
 282         .leds           = evm_leds,
 283 };
 284
 285 static struct platform_device *evm_led_dev;
 286
 287 static int
 288 evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 289 {
 290         struct gpio_led *leds = evm_leds;
 291         int status;
 292
 293         while (ngpio--) {
 294                 leds->gpio = gpio++;
 295                 leds++;
 296         }
 297
 298         /* what an extremely annoying way to be forced to handle
 299          * device unregistration ...
 300          */
 301         evm_led_dev = platform_device_alloc("leds-gpio", 0);
 302         platform_device_add_data(evm_led_dev,
 303                         &evm_led_data, sizeof evm_led_data);
 304
 305         evm_led_dev->dev.parent = &client->dev;
 306         status = platform_device_add(evm_led_dev);
 307         if (status < 0) {
 308                 platform_device_put(evm_led_dev);
 309                 evm_led_dev = NULL;
 310         }
 311         return status;
 312 }
 313
 314 static int
 315 evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 316 {
 317         if (evm_led_dev) {
 318                 platform_device_unregister(evm_led_dev);
 319                 evm_led_dev = NULL;
 320         }
 321         return 0;
 322 }
 323
 324 static struct pcf857x_platform_data pcf_data_u2 = {
 325         .gpio_base      = PCF_Uxx_BASE(0),
 326         .setup          = evm_led_setup,
 327         .teardown       = evm_led_teardown,
 328 };
 329
 330
 331 /* U18 - A/V clock generator and user switch */
 332
 333 static int sw_gpio;
 334
 335 static ssize_t
 336 sw_show(struct device *d, struct device_attribute *a, char *buf)
 337 {
 338         char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
 339
 340         strcpy(buf, s);
 341         return strlen(s);
 342 }
 343
 344 static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
 345
 346 static int
 347 evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 348 {
 349         int     status;
 350
 351         /* export dip switch option */
 352         sw_gpio = gpio + 7;
 353         status = gpio_request(sw_gpio, "user_sw");
 354         if (status == 0)
 355                 status = gpio_direction_input(sw_gpio);
 356         if (status == 0)
 357                 status = device_create_file(&client->dev, &dev_attr_user_sw);
 358         else
 359                 gpio_free(sw_gpio);
 360         if (status != 0)
 361                 sw_gpio = -EINVAL;
 362
 363         /* audio PLL:  48 kHz (vs 44.1 or 32), single rate (vs double) */
 364         gpio_request(gpio + 3, "pll_fs2");
 365         gpio_direction_output(gpio + 3, 0);
 366
 367         gpio_request(gpio + 2, "pll_fs1");
 368         gpio_direction_output(gpio + 2, 0);
 369
 370         gpio_request(gpio + 1, "pll_sr");
 371         gpio_direction_output(gpio + 1, 0);
 372
 373         return 0;
 374 }
 375
 376 static int
 377 evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 378 {
 379         gpio_free(gpio + 1);
 380         gpio_free(gpio + 2);
 381         gpio_free(gpio + 3);
 382
 383         if (sw_gpio > 0) {
 384                 device_remove_file(&client->dev, &dev_attr_user_sw);
 385                 gpio_free(sw_gpio);
 386         }
 387         return 0;
 388 }
 389
 390 static struct pcf857x_platform_data pcf_data_u18 = {
 391         .gpio_base      = PCF_Uxx_BASE(1),
 392         .n_latch        = (1 << 3) | (1 << 2) | (1 << 1),
 393         .setup          = evm_u18_setup,
 394         .teardown       = evm_u18_teardown,
 395 };
 396
 397
 398 /* U35 - various I/O signals used to manage USB, CF, ATA, etc */
 399
 400 static int
 401 evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 402 {
 403         /* p0 = nDRV_VBUS (initial:  don't supply it) */
 404         gpio_request(gpio + 0, "nDRV_VBUS");
 405         gpio_direction_output(gpio + 0, 1);
 406
 407         /* p1 = VDDIMX_EN */
 408         gpio_request(gpio + 1, "VDDIMX_EN");
 409         gpio_direction_output(gpio + 1, 1);
 410
 411         /* p2 = VLYNQ_EN */
 412         gpio_request(gpio + 2, "VLYNQ_EN");
 413         gpio_direction_output(gpio + 2, 1);
 414
 415         /* p3 = n3V3_CF_RESET (initial: stay in reset) */
 416         gpio_request(gpio + 3, "nCF_RESET");
 417         gpio_direction_output(gpio + 3, 0);
 418
 419         /* (p4 unused) */
 420
 421         /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
 422         gpio_request(gpio + 5, "WLAN_RESET");
 423         gpio_direction_output(gpio + 5, 1);
 424
 425         /* p6 = nATA_SEL (initial: select) */
 426         gpio_request(gpio + 6, "nATA_SEL");
 427         gpio_direction_output(gpio + 6, 0);
 428
 429         /* p7 = nCF_SEL (initial: deselect) */
 430         gpio_request(gpio + 7, "nCF_SEL");
 431         gpio_direction_output(gpio + 7, 1);
 432
 433         /* irlml6401 switches over 1A, in under 8 msec;
 434          * now it can be managed by nDRV_VBUS ...
 435          */
 436         davinci_setup_usb(1000, 8);
 437
 438         return 0;
 439 }
 440
 441 static int
 442 evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 443 {
 444         gpio_free(gpio + 7);
 445         gpio_free(gpio + 6);
 446         gpio_free(gpio + 5);
 447         gpio_free(gpio + 3);
 448         gpio_free(gpio + 2);
 449         gpio_free(gpio + 1);
 450         gpio_free(gpio + 0);
 451         return 0;
 452 }
 453
 454 static struct pcf857x_platform_data pcf_data_u35 = {
 455         .gpio_base      = PCF_Uxx_BASE(2),
 456         .setup          = evm_u35_setup,
 457         .teardown       = evm_u35_teardown,
 458 };
 459
 460 /*----------------------------------------------------------------------*/
 461
 462 /* Most of this EEPROM is unused, but U-Boot uses some data:
 463  *  - 0x7f00, 6 bytes Ethernet Address
 464  *  - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
 465  *  - ... newer boards may have more
 466  */
 467
 468 static struct at24_platform_data eeprom_info = {
 469         .byte_len       = (256*1024) / 8,
 470         .page_size      = 64,
 471         .flags          = AT24_FLAG_ADDR16,
 472         .setup          = davinci_get_mac_addr,
 473         .context        = (void *)0x7f00,
 474 };
 475
 476 /*
 477  * MSP430 supports RTC, card detection, input from IR remote, and
 478  * a bit more.  It triggers interrupts on GPIO(7) from pressing
 479  * buttons on the IR remote, and for card detect switches.
 480  */
 481 static struct i2c_client *dm6446evm_msp;
 482
 483 static int dm6446evm_msp_probe(struct i2c_client *client,
 484                 const struct i2c_device_id *id)
 485 {
 486         dm6446evm_msp = client;
 487         return 0;
 488 }
 489
 490 static int dm6446evm_msp_remove(struct i2c_client *client)
 491 {
 492         dm6446evm_msp = NULL;
 493         return 0;
 494 }
 495
 496 static const struct i2c_device_id dm6446evm_msp_ids[] = {
 497         { "dm6446evm_msp", 0, },
 498         { /* end of list */ },
 499 };
 500
 501 static struct i2c_driver dm6446evm_msp_driver = {
 502         .driver.name    = "dm6446evm_msp",
 503         .id_table       = dm6446evm_msp_ids,
 504         .probe          = dm6446evm_msp_probe,
 505         .remove         = dm6446evm_msp_remove,
 506 };
 507
 508 static int dm6444evm_msp430_get_pins(void)
 509 {
 510         static const char txbuf[2] = { 2, 4, };
 511         char buf[4];
 512         struct i2c_msg msg[2] = {
 513                 {
 514                         .addr = dm6446evm_msp->addr,
 515                         .flags = 0,
 516                         .len = 2,
 517                         .buf = (void __force *)txbuf,
 518                 },
 519                 {
 520                         .addr = dm6446evm_msp->addr,
 521                         .flags = I2C_M_RD,
 522                         .len = 4,
 523                         .buf = buf,
 524                 },
 525         };
 526         int status;
 527
 528         if (!dm6446evm_msp)
 529                 return -ENXIO;
 530
 531         /* Command 4 == get input state, returns port 2 and port3 data
 532          *   S Addr W [A] len=2 [A] cmd=4 [A]
 533          *   RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P
 534          */
 535         status = i2c_transfer(dm6446evm_msp->adapter, msg, 2);
 536         if (status < 0)
 537                 return status;
 538
 539         dev_dbg(&dm6446evm_msp->dev,
 540                 "PINS: %02x %02x %02x %02x\n",
 541                 buf[0], buf[1], buf[2], buf[3]);
 542
 543         return (buf[3] << 8) | buf[2];
 544 }
 545
 546 static int dm6444evm_mmc_get_cd(int module)
 547 {
 548         int status = dm6444evm_msp430_get_pins();
 549
 550         return (status < 0) ? status : !(status & BIT(1));
 551 }
 552
 553 static int dm6444evm_mmc_get_ro(int module)
 554 {
 555         int status = dm6444evm_msp430_get_pins();
 556
 557         return (status < 0) ? status : status & BIT(6 + 8);
 558 }
 559
 560 static struct davinci_mmc_config dm6446evm_mmc_config = {
 561         .get_cd         = dm6444evm_mmc_get_cd,
 562         .get_ro         = dm6444evm_mmc_get_ro,
 563         .wires          = 4,
 564         .version        = MMC_CTLR_VERSION_1
 565 };
 566
 567 static struct i2c_board_info __initdata i2c_info[] =  {
 568         {
 569                 I2C_BOARD_INFO("dm6446evm_msp", 0x23),
 570         },
 571         {
 572                 I2C_BOARD_INFO("pcf8574", 0x38),
 573                 .platform_data  = &pcf_data_u2,
 574         },
 575         {
 576                 I2C_BOARD_INFO("pcf8574", 0x39),
 577                 .platform_data  = &pcf_data_u18,
 578         },
 579         {
 580                 I2C_BOARD_INFO("pcf8574", 0x3a),
 581                 .platform_data  = &pcf_data_u35,
 582         },
 583         {
 584                 I2C_BOARD_INFO("24c256", 0x50),
 585                 .platform_data  = &eeprom_info,
 586         },
 587         {
 588                 I2C_BOARD_INFO("tlv320aic33", 0x1b),
 589         },
 590 };
 591
 592 /* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
 593  * which requires 100 usec of idle bus after i2c writes sent to it.
 594  */
 595 static struct davinci_i2c_platform_data i2c_pdata = {
 596         .bus_freq       = 20 /* kHz */,
 597         .bus_delay      = 100 /* usec */,
 598         .sda_pin        = 44,
 599         .scl_pin        = 43,
 600 };
 601
 602 static void __init evm_init_i2c(void)
 603 {
 604         davinci_init_i2c(&i2c_pdata);
 605         i2c_add_driver(&dm6446evm_msp_driver);
 606         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 607 }
 608
 609 static struct platform_device *davinci_evm_devices[] __initdata = {
 610         &davinci_fb_device,
 611         &rtc_dev,
 612 };
 613
 614 static struct davinci_uart_config uart_config __initdata = {
 615         .enabled_uarts = (1 << 0),
 616 };
 617
 618 static void __init
 619 davinci_evm_map_io(void)
 620 {
 621         /* setup input configuration for VPFE input devices */
 622         dm644x_set_vpfe_config(&vpfe_cfg);
 623         dm644x_init();
 624 }
 625
 626 static int davinci_phy_fixup(struct phy_device *phydev)
 627 {
 628         unsigned int control;
 629         /* CRITICAL: Fix for increasing PHY signal drive strength for
 630          * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY
 631          * signal strength was low causing  TX to fail randomly. The
 632          * fix is to Set bit 11 (Increased MII drive strength) of PHY
 633          * register 26 (Digital Config register) on this phy. */
 634         control = phy_read(phydev, 26);
 635         phy_write(phydev, 26, (control | 0x800));
 636         return 0;
 637 }
 638
 639 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
 640     defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
 641 #define HAS_ATA 1
 642 #else
 643 #define HAS_ATA 0
 644 #endif
 645
 646 #if defined(CONFIG_MTD_PHYSMAP) || \
 647     defined(CONFIG_MTD_PHYSMAP_MODULE)
 648 #define HAS_NOR 1
 649 #else
 650 #define HAS_NOR 0
 651 #endif
 652
 653 #if defined(CONFIG_MTD_NAND_DAVINCI) || \
 654     defined(CONFIG_MTD_NAND_DAVINCI_MODULE)
 655 #define HAS_NAND 1
 656 #else
 657 #define HAS_NAND 0
 658 #endif
 659
 660 static __init void davinci_evm_init(void)
 661 {
 662         struct clk *aemif_clk;
 663         struct davinci_soc_info *soc_info = &davinci_soc_info;
 664
 665         aemif_clk = clk_get(NULL, "aemif");
 666         clk_enable(aemif_clk);
 667
 668         if (HAS_ATA) {
 669                 if (HAS_NAND || HAS_NOR)
 670                         pr_warning("WARNING: both IDE and Flash are "
 671                                 "enabled, but they share AEMIF pins.\n"
 672                                 "\tDisable IDE for NAND/NOR support.\n");
 673                 davinci_init_ide();
 674         } else if (HAS_NAND || HAS_NOR) {
 675                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 676                 davinci_cfg_reg(DM644X_ATAEN_DISABLE);
 677
 678                 /* only one device will be jumpered and detected */
 679                 if (HAS_NAND) {
 680                         platform_device_register(&davinci_evm_nandflash_device);
 681                         evm_leds[7].default_trigger = "nand-disk";
 682                         if (HAS_NOR)
 683                                 pr_warning("WARNING: both NAND and NOR flash "
 684                                         "are enabled; disable one of them.\n");
 685                 } else if (HAS_NOR)
 686                         platform_device_register(&davinci_evm_norflash_device);
 687         }
 688
 689         platform_add_devices(davinci_evm_devices,
 690                              ARRAY_SIZE(davinci_evm_devices));
 691         evm_init_i2c();
 692
 693         davinci_setup_mmc(0, &dm6446evm_mmc_config);
 694
 695         davinci_serial_init(&uart_config);
 696         dm644x_init_asp(&dm644x_evm_snd_data);
 697
 698         soc_info->emac_pdata->phy_mask = DM644X_EVM_PHY_MASK;
 699         soc_info->emac_pdata->mdio_max_freq = DM644X_EVM_MDIO_FREQUENCY;
 700
 701         /* Register the fixup for PHY on DaVinci */
 702         phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK,
 703                                         davinci_phy_fixup);
 704
 705 }
 706
 707 static __init void davinci_evm_irq_init(void)
 708 {
 709         davinci_irq_init();
 710 }
 711
 712 MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
 713         /* Maintainer: MontaVista Software <source@mvista.com> */
 714         .phys_io      = IO_PHYS,
 715         .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 716         .boot_params  = (DAVINCI_DDR_BASE + 0x100),
 717         .map_io       = davinci_evm_map_io,
 718         .init_irq     = davinci_evm_irq_init,
 719         .timer        = &davinci_timer,
 720         .init_machine = davinci_evm_init,
 721 MACHINE_END