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