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
  40 #define DM644X_EVM_PHY_MASK             (0x2)
  41 #define DM644X_EVM_MDIO_FREQUENCY       (2200000) /* PHY bus frequency */
  42
  43 #define DAVINCI_CFC_ATA_BASE              0x01C66000
  44
  45 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE   0x01e00000
  46 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE  0x02000000
  47 #define DAVINCI_ASYNC_EMIF_DATA_CE1_BASE  0x04000000
  48 #define DAVINCI_ASYNC_EMIF_DATA_CE2_BASE  0x06000000
  49 #define DAVINCI_ASYNC_EMIF_DATA_CE3_BASE  0x08000000
  50
  51 #define LXT971_PHY_ID   (0x001378e2)
  52 #define LXT971_PHY_MASK (0xfffffff0)
  53
  54 static struct mtd_partition davinci_evm_norflash_partitions[] = {
  55         /* bootloader (UBL, U-Boot, etc) in first 5 sectors */
  56         {
  57                 .name           = "bootloader",
  58                 .offset         = 0,
  59                 .size           = 5 * SZ_64K,
  60                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  61         },
  62         /* bootloader params in the next 1 sectors */
  63         {
  64                 .name           = "params",
  65                 .offset         = MTDPART_OFS_APPEND,
  66                 .size           = SZ_64K,
  67                 .mask_flags     = 0,
  68         },
  69         /* kernel */
  70         {
  71                 .name           = "kernel",
  72                 .offset         = MTDPART_OFS_APPEND,
  73                 .size           = SZ_2M,
  74                 .mask_flags     = 0
  75         },
  76         /* file system */
  77         {
  78                 .name           = "filesystem",
  79                 .offset         = MTDPART_OFS_APPEND,
  80                 .size           = MTDPART_SIZ_FULL,
  81                 .mask_flags     = 0
  82         }
  83 };
  84
  85 static struct physmap_flash_data davinci_evm_norflash_data = {
  86         .width          = 2,
  87         .parts          = davinci_evm_norflash_partitions,
  88         .nr_parts       = ARRAY_SIZE(davinci_evm_norflash_partitions),
  89 };
  90
  91 /* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
  92  * limits addresses to 16M, so using addresses past 16M will wrap */
  93 static struct resource davinci_evm_norflash_resource = {
  94         .start          = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
  95         .end            = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
  96         .flags          = IORESOURCE_MEM,
  97 };
  98
  99 static struct platform_device davinci_evm_norflash_device = {
 100         .name           = "physmap-flash",
 101         .id             = 0,
 102         .dev            = {
 103                 .platform_data  = &davinci_evm_norflash_data,
 104         },
 105         .num_resources  = 1,
 106         .resource       = &davinci_evm_norflash_resource,
 107 };
 108
 109 /* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks).
 110  * It may used instead of the (default) NOR chip to boot, using TI's
 111  * tools to install the secondary boot loader (UBL) and U-Boot.
 112  */
 113 struct mtd_partition davinci_evm_nandflash_partition[] = {
 114         /* Bootloader layout depends on whose u-boot is installed, but we
 115          * can hide all the details.
 116          *  - block 0 for u-boot environment ... in mainline u-boot
 117          *  - block 1 for UBL (plus up to four backup copies in blocks 2..5)
 118          *  - blocks 6...? for u-boot
 119          *  - blocks 16..23 for u-boot environment ... in TI's u-boot
 120          */
 121         {
 122                 .name           = "bootloader",
 123                 .offset         = 0,
 124                 .size           = SZ_256K + SZ_128K,
 125                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 126         },
 127         /* Kernel */
 128         {
 129                 .name           = "kernel",
 130                 .offset         = MTDPART_OFS_APPEND,
 131                 .size           = SZ_4M,
 132                 .mask_flags     = 0,
 133         },
 134         /* File system (older GIT kernels started this on the 5MB mark) */
 135         {
 136                 .name           = "filesystem",
 137                 .offset         = MTDPART_OFS_APPEND,
 138                 .size           = MTDPART_SIZ_FULL,
 139                 .mask_flags     = 0,
 140         }
 141         /* A few blocks at end hold a flash BBT ... created by TI's CCS
 142          * using flashwriter_nand.out, but ignored by TI's versions of
 143          * Linux and u-boot.  We boot faster by using them.
 144          */
 145 };
 146
 147 static struct davinci_nand_pdata davinci_evm_nandflash_data = {
 148         .parts          = davinci_evm_nandflash_partition,
 149         .nr_parts       = ARRAY_SIZE(davinci_evm_nandflash_partition),
 150         .ecc_mode       = NAND_ECC_HW,
 151         .options        = NAND_USE_FLASH_BBT,
 152 };
 153
 154 static struct resource davinci_evm_nandflash_resource[] = {
 155         {
 156                 .start          = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
 157                 .end            = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 158                 .flags          = IORESOURCE_MEM,
 159         }, {
 160                 .start          = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
 161                 .end            = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 162                 .flags          = IORESOURCE_MEM,
 163         },
 164 };
 165
 166 static struct platform_device davinci_evm_nandflash_device = {
 167         .name           = "davinci_nand",
 168         .id             = 0,
 169         .dev            = {
 170                 .platform_data  = &davinci_evm_nandflash_data,
 171         },
 172         .num_resources  = ARRAY_SIZE(davinci_evm_nandflash_resource),
 173         .resource       = davinci_evm_nandflash_resource,
 174 };
 175
 176 static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
 177
 178 static struct platform_device davinci_fb_device = {
 179         .name           = "davincifb",
 180         .id             = -1,
 181         .dev = {
 182                 .dma_mask               = &davinci_fb_dma_mask,
 183                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 184         },
 185         .num_resources = 0,
 186 };
 187
 188 static struct tvp514x_platform_data tvp5146_pdata = {
 189         .clk_polarity = 0,
 190         .hs_polarity = 1,
 191         .vs_polarity = 1
 192 };
 193
 194 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 195 /* Inputs available at the TVP5146 */
 196 static struct v4l2_input tvp5146_inputs[] = {
 197         {
 198                 .index = 0,
 199                 .name = "Composite",
 200                 .type = V4L2_INPUT_TYPE_CAMERA,
 201                 .std = TVP514X_STD_ALL,
 202         },
 203         {
 204                 .index = 1,
 205                 .name = "S-Video",
 206                 .type = V4L2_INPUT_TYPE_CAMERA,
 207                 .std = TVP514X_STD_ALL,
 208         },
 209 };
 210
 211 /*
 212  * this is the route info for connecting each input to decoder
 213  * ouput that goes to vpfe. There is a one to one correspondence
 214  * with tvp5146_inputs
 215  */
 216 static struct vpfe_route tvp5146_routes[] = {
 217         {
 218                 .input = INPUT_CVBS_VI2B,
 219                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 220         },
 221         {
 222                 .input = INPUT_SVIDEO_VI2C_VI1C,
 223                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 224         },
 225 };
 226
 227 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 228         {
 229                 .name = "tvp5146",
 230                 .grp_id = 0,
 231                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 232                 .inputs = tvp5146_inputs,
 233                 .routes = tvp5146_routes,
 234                 .can_route = 1,
 235                 .ccdc_if_params = {
 236                         .if_type = VPFE_BT656,
 237                         .hdpol = VPFE_PINPOL_POSITIVE,
 238                         .vdpol = VPFE_PINPOL_POSITIVE,
 239                 },
 240                 .board_info = {
 241                         I2C_BOARD_INFO("tvp5146", 0x5d),
 242                         .platform_data = &tvp5146_pdata,
 243                 },
 244         },
 245 };
 246
 247 static struct vpfe_config vpfe_cfg = {
 248         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 249         .sub_devs = vpfe_sub_devs,
 250         .card_name = "DM6446 EVM",
 251         .ccdc = "DM6446 CCDC",
 252 };
 253
 254 static struct platform_device rtc_dev = {
 255         .name           = "rtc_davinci_evm",
 256         .id             = -1,
 257 };
 258
 259 static struct resource ide_resources[] = {
 260         {
 261                 .start          = DAVINCI_CFC_ATA_BASE,
 262                 .end            = DAVINCI_CFC_ATA_BASE + 0x7ff,
 263                 .flags          = IORESOURCE_MEM,
 264         },
 265         {
 266                 .start          = IRQ_IDE,
 267                 .end            = IRQ_IDE,
 268                 .flags          = IORESOURCE_IRQ,
 269         },
 270 };
 271
 272 static u64 ide_dma_mask = DMA_BIT_MASK(32);
 273
 274 static struct platform_device ide_dev = {
 275         .name           = "palm_bk3710",
 276         .id             = -1,
 277         .resource       = ide_resources,
 278         .num_resources  = ARRAY_SIZE(ide_resources),
 279         .dev = {
 280                 .dma_mask               = &ide_dma_mask,
 281                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 282         },
 283 };
 284
 285 static struct snd_platform_data dm644x_evm_snd_data;
 286
 287 /*----------------------------------------------------------------------*/
 288
 289 /*
 290  * I2C GPIO expanders
 291  */
 292
 293 #define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
 294
 295
 296 /* U2 -- LEDs */
 297
 298 static struct gpio_led evm_leds[] = {
 299         { .name = "DS8", .active_low = 1,
 300                 .default_trigger = "heartbeat", },
 301         { .name = "DS7", .active_low = 1, },
 302         { .name = "DS6", .active_low = 1, },
 303         { .name = "DS5", .active_low = 1, },
 304         { .name = "DS4", .active_low = 1, },
 305         { .name = "DS3", .active_low = 1, },
 306         { .name = "DS2", .active_low = 1,
 307                 .default_trigger = "mmc0", },
 308         { .name = "DS1", .active_low = 1,
 309                 .default_trigger = "ide-disk", },
 310 };
 311
 312 static const struct gpio_led_platform_data evm_led_data = {
 313         .num_leds       = ARRAY_SIZE(evm_leds),
 314         .leds           = evm_leds,
 315 };
 316
 317 static struct platform_device *evm_led_dev;
 318
 319 static int
 320 evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 321 {
 322         struct gpio_led *leds = evm_leds;
 323         int status;
 324
 325         while (ngpio--) {
 326                 leds->gpio = gpio++;
 327                 leds++;
 328         }
 329
 330         /* what an extremely annoying way to be forced to handle
 331          * device unregistration ...
 332          */
 333         evm_led_dev = platform_device_alloc("leds-gpio", 0);
 334         platform_device_add_data(evm_led_dev,
 335                         &evm_led_data, sizeof evm_led_data);
 336
 337         evm_led_dev->dev.parent = &client->dev;
 338         status = platform_device_add(evm_led_dev);
 339         if (status < 0) {
 340                 platform_device_put(evm_led_dev);
 341                 evm_led_dev = NULL;
 342         }
 343         return status;
 344 }
 345
 346 static int
 347 evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 348 {
 349         if (evm_led_dev) {
 350                 platform_device_unregister(evm_led_dev);
 351                 evm_led_dev = NULL;
 352         }
 353         return 0;
 354 }
 355
 356 static struct pcf857x_platform_data pcf_data_u2 = {
 357         .gpio_base      = PCF_Uxx_BASE(0),
 358         .setup          = evm_led_setup,
 359         .teardown       = evm_led_teardown,
 360 };
 361
 362
 363 /* U18 - A/V clock generator and user switch */
 364
 365 static int sw_gpio;
 366
 367 static ssize_t
 368 sw_show(struct device *d, struct device_attribute *a, char *buf)
 369 {
 370         char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
 371
 372         strcpy(buf, s);
 373         return strlen(s);
 374 }
 375
 376 static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
 377
 378 static int
 379 evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 380 {
 381         int     status;
 382
 383         /* export dip switch option */
 384         sw_gpio = gpio + 7;
 385         status = gpio_request(sw_gpio, "user_sw");
 386         if (status == 0)
 387                 status = gpio_direction_input(sw_gpio);
 388         if (status == 0)
 389                 status = device_create_file(&client->dev, &dev_attr_user_sw);
 390         else
 391                 gpio_free(sw_gpio);
 392         if (status != 0)
 393                 sw_gpio = -EINVAL;
 394
 395         /* audio PLL:  48 kHz (vs 44.1 or 32), single rate (vs double) */
 396         gpio_request(gpio + 3, "pll_fs2");
 397         gpio_direction_output(gpio + 3, 0);
 398
 399         gpio_request(gpio + 2, "pll_fs1");
 400         gpio_direction_output(gpio + 2, 0);
 401
 402         gpio_request(gpio + 1, "pll_sr");
 403         gpio_direction_output(gpio + 1, 0);
 404
 405         return 0;
 406 }
 407
 408 static int
 409 evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 410 {
 411         gpio_free(gpio + 1);
 412         gpio_free(gpio + 2);
 413         gpio_free(gpio + 3);
 414
 415         if (sw_gpio > 0) {
 416                 device_remove_file(&client->dev, &dev_attr_user_sw);
 417                 gpio_free(sw_gpio);
 418         }
 419         return 0;
 420 }
 421
 422 static struct pcf857x_platform_data pcf_data_u18 = {
 423         .gpio_base      = PCF_Uxx_BASE(1),
 424         .n_latch        = (1 << 3) | (1 << 2) | (1 << 1),
 425         .setup          = evm_u18_setup,
 426         .teardown       = evm_u18_teardown,
 427 };
 428
 429
 430 /* U35 - various I/O signals used to manage USB, CF, ATA, etc */
 431
 432 static int
 433 evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 434 {
 435         /* p0 = nDRV_VBUS (initial:  don't supply it) */
 436         gpio_request(gpio + 0, "nDRV_VBUS");
 437         gpio_direction_output(gpio + 0, 1);
 438
 439         /* p1 = VDDIMX_EN */
 440         gpio_request(gpio + 1, "VDDIMX_EN");
 441         gpio_direction_output(gpio + 1, 1);
 442
 443         /* p2 = VLYNQ_EN */
 444         gpio_request(gpio + 2, "VLYNQ_EN");
 445         gpio_direction_output(gpio + 2, 1);
 446
 447         /* p3 = n3V3_CF_RESET (initial: stay in reset) */
 448         gpio_request(gpio + 3, "nCF_RESET");
 449         gpio_direction_output(gpio + 3, 0);
 450
 451         /* (p4 unused) */
 452
 453         /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
 454         gpio_request(gpio + 5, "WLAN_RESET");
 455         gpio_direction_output(gpio + 5, 1);
 456
 457         /* p6 = nATA_SEL (initial: select) */
 458         gpio_request(gpio + 6, "nATA_SEL");
 459         gpio_direction_output(gpio + 6, 0);
 460
 461         /* p7 = nCF_SEL (initial: deselect) */
 462         gpio_request(gpio + 7, "nCF_SEL");
 463         gpio_direction_output(gpio + 7, 1);
 464
 465         /* irlml6401 switches over 1A, in under 8 msec;
 466          * now it can be managed by nDRV_VBUS ...
 467          */
 468         setup_usb(500, 8);
 469
 470         return 0;
 471 }
 472
 473 static int
 474 evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 475 {
 476         gpio_free(gpio + 7);
 477         gpio_free(gpio + 6);
 478         gpio_free(gpio + 5);
 479         gpio_free(gpio + 3);
 480         gpio_free(gpio + 2);
 481         gpio_free(gpio + 1);
 482         gpio_free(gpio + 0);
 483         return 0;
 484 }
 485
 486 static struct pcf857x_platform_data pcf_data_u35 = {
 487         .gpio_base      = PCF_Uxx_BASE(2),
 488         .setup          = evm_u35_setup,
 489         .teardown       = evm_u35_teardown,
 490 };
 491
 492 /*----------------------------------------------------------------------*/
 493
 494 /* Most of this EEPROM is unused, but U-Boot uses some data:
 495  *  - 0x7f00, 6 bytes Ethernet Address
 496  *  - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
 497  *  - ... newer boards may have more
 498  */
 499
 500 static struct at24_platform_data eeprom_info = {
 501         .byte_len       = (256*1024) / 8,
 502         .page_size      = 64,
 503         .flags          = AT24_FLAG_ADDR16,
 504         .setup          = davinci_get_mac_addr,
 505         .context        = (void *)0x7f00,
 506 };
 507
 508 /*
 509  * MSP430 supports RTC, card detection, input from IR remote, and
 510  * a bit more.  It triggers interrupts on GPIO(7) from pressing
 511  * buttons on the IR remote, and for card detect switches.
 512  */
 513 static struct i2c_client *dm6446evm_msp;
 514
 515 static int dm6446evm_msp_probe(struct i2c_client *client,
 516                 const struct i2c_device_id *id)
 517 {
 518         dm6446evm_msp = client;
 519         return 0;
 520 }
 521
 522 static int dm6446evm_msp_remove(struct i2c_client *client)
 523 {
 524         dm6446evm_msp = NULL;
 525         return 0;
 526 }
 527
 528 static const struct i2c_device_id dm6446evm_msp_ids[] = {
 529         { "dm6446evm_msp", 0, },
 530         { /* end of list */ },
 531 };
 532
 533 static struct i2c_driver dm6446evm_msp_driver = {
 534         .driver.name    = "dm6446evm_msp",
 535         .id_table       = dm6446evm_msp_ids,
 536         .probe          = dm6446evm_msp_probe,
 537         .remove         = dm6446evm_msp_remove,
 538 };
 539
 540 static int dm6444evm_msp430_get_pins(void)
 541 {
 542         static const char txbuf[2] = { 2, 4, };
 543         char buf[4];
 544         struct i2c_msg msg[2] = {
 545                 {
 546                         .addr = dm6446evm_msp->addr,
 547                         .flags = 0,
 548                         .len = 2,
 549                         .buf = (void __force *)txbuf,
 550                 },
 551                 {
 552                         .addr = dm6446evm_msp->addr,
 553                         .flags = I2C_M_RD,
 554                         .len = 4,
 555                         .buf = buf,
 556                 },
 557         };
 558         int status;
 559
 560         if (!dm6446evm_msp)
 561                 return -ENXIO;
 562
 563         /* Command 4 == get input state, returns port 2 and port3 data
 564          *   S Addr W [A] len=2 [A] cmd=4 [A]
 565          *   RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P
 566          */
 567         status = i2c_transfer(dm6446evm_msp->adapter, msg, 2);
 568         if (status < 0)
 569                 return status;
 570
 571         dev_dbg(&dm6446evm_msp->dev,
 572                 "PINS: %02x %02x %02x %02x\n",
 573                 buf[0], buf[1], buf[2], buf[3]);
 574
 575         return (buf[3] << 8) | buf[2];
 576 }
 577
 578 static int dm6444evm_mmc_get_cd(int module)
 579 {
 580         int status = dm6444evm_msp430_get_pins();
 581
 582         return (status < 0) ? status : !(status & BIT(1));
 583 }
 584
 585 static int dm6444evm_mmc_get_ro(int module)
 586 {
 587         int status = dm6444evm_msp430_get_pins();
 588
 589         return (status < 0) ? status : status & BIT(6 + 8);
 590 }
 591
 592 static struct davinci_mmc_config dm6446evm_mmc_config = {
 593         .get_cd         = dm6444evm_mmc_get_cd,
 594         .get_ro         = dm6444evm_mmc_get_ro,
 595         .wires          = 4,
 596         .version        = MMC_CTLR_VERSION_1
 597 };
 598
 599 static struct i2c_board_info __initdata i2c_info[] =  {
 600         {
 601                 I2C_BOARD_INFO("dm6446evm_msp", 0x23),
 602         },
 603         {
 604                 I2C_BOARD_INFO("pcf8574", 0x38),
 605                 .platform_data  = &pcf_data_u2,
 606         },
 607         {
 608                 I2C_BOARD_INFO("pcf8574", 0x39),
 609                 .platform_data  = &pcf_data_u18,
 610         },
 611         {
 612                 I2C_BOARD_INFO("pcf8574", 0x3a),
 613                 .platform_data  = &pcf_data_u35,
 614         },
 615         {
 616                 I2C_BOARD_INFO("24c256", 0x50),
 617                 .platform_data  = &eeprom_info,
 618         },
 619         {
 620                 I2C_BOARD_INFO("tlv320aic33", 0x1b),
 621         },
 622 };
 623
 624 /* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
 625  * which requires 100 usec of idle bus after i2c writes sent to it.
 626  */
 627 static struct davinci_i2c_platform_data i2c_pdata = {
 628         .bus_freq       = 20 /* kHz */,
 629         .bus_delay      = 100 /* usec */,
 630 };
 631
 632 static void __init evm_init_i2c(void)
 633 {
 634         davinci_init_i2c(&i2c_pdata);
 635         i2c_add_driver(&dm6446evm_msp_driver);
 636         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 637 }
 638
 639 static struct platform_device *davinci_evm_devices[] __initdata = {
 640         &davinci_fb_device,
 641         &rtc_dev,
 642 };
 643
 644 static struct davinci_uart_config uart_config __initdata = {
 645         .enabled_uarts = (1 << 0),
 646 };
 647
 648 static void __init
 649 davinci_evm_map_io(void)
 650 {
 651         /* setup input configuration for VPFE input devices */
 652         dm644x_set_vpfe_config(&vpfe_cfg);
 653         dm644x_init();
 654 }
 655
 656 static int davinci_phy_fixup(struct phy_device *phydev)
 657 {
 658         unsigned int control;
 659         /* CRITICAL: Fix for increasing PHY signal drive strength for
 660          * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY
 661          * signal strength was low causing  TX to fail randomly. The
 662          * fix is to Set bit 11 (Increased MII drive strength) of PHY
 663          * register 26 (Digital Config register) on this phy. */
 664         control = phy_read(phydev, 26);
 665         phy_write(phydev, 26, (control | 0x800));
 666         return 0;
 667 }
 668
 669 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
 670     defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
 671 #define HAS_ATA 1
 672 #else
 673 #define HAS_ATA 0
 674 #endif
 675
 676 #if defined(CONFIG_MTD_PHYSMAP) || \
 677     defined(CONFIG_MTD_PHYSMAP_MODULE)
 678 #define HAS_NOR 1
 679 #else
 680 #define HAS_NOR 0
 681 #endif
 682
 683 #if defined(CONFIG_MTD_NAND_DAVINCI) || \
 684     defined(CONFIG_MTD_NAND_DAVINCI_MODULE)
 685 #define HAS_NAND 1
 686 #else
 687 #define HAS_NAND 0
 688 #endif
 689
 690 static __init void davinci_evm_init(void)
 691 {
 692         struct clk *aemif_clk;
 693         struct davinci_soc_info *soc_info = &davinci_soc_info;
 694
 695         aemif_clk = clk_get(NULL, "aemif");
 696         clk_enable(aemif_clk);
 697
 698         if (HAS_ATA) {
 699                 if (HAS_NAND || HAS_NOR)
 700                         pr_warning("WARNING: both IDE and Flash are "
 701                                 "enabled, but they share AEMIF pins.\n"
 702                                 "\tDisable IDE for NAND/NOR support.\n");
 703                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 704                 davinci_cfg_reg(DM644X_ATAEN);
 705                 davinci_cfg_reg(DM644X_HDIREN);
 706                 platform_device_register(&ide_dev);
 707         } else if (HAS_NAND || HAS_NOR) {
 708                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 709                 davinci_cfg_reg(DM644X_ATAEN_DISABLE);
 710
 711                 /* only one device will be jumpered and detected */
 712                 if (HAS_NAND) {
 713                         platform_device_register(&davinci_evm_nandflash_device);
 714                         evm_leds[7].default_trigger = "nand-disk";
 715                         if (HAS_NOR)
 716                                 pr_warning("WARNING: both NAND and NOR flash "
 717                                         "are enabled; disable one of them.\n");
 718                 } else if (HAS_NOR)
 719                         platform_device_register(&davinci_evm_norflash_device);
 720         }
 721
 722         platform_add_devices(davinci_evm_devices,
 723                              ARRAY_SIZE(davinci_evm_devices));
 724         evm_init_i2c();
 725
 726         davinci_setup_mmc(0, &dm6446evm_mmc_config);
 727
 728         davinci_serial_init(&uart_config);
 729         dm644x_init_asp(&dm644x_evm_snd_data);
 730
 731         soc_info->emac_pdata->phy_mask = DM644X_EVM_PHY_MASK;
 732         soc_info->emac_pdata->mdio_max_freq = DM644X_EVM_MDIO_FREQUENCY;
 733
 734         /* Register the fixup for PHY on DaVinci */
 735         phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK,
 736                                         davinci_phy_fixup);
 737
 738 }
 739
 740 static __init void davinci_evm_irq_init(void)
 741 {
 742         davinci_irq_init();
 743 }
 744
 745 MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
 746         /* Maintainer: MontaVista Software <source@mvista.com> */
 747         .phys_io      = IO_PHYS,
 748         .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 749         .boot_params  = (DAVINCI_DDR_BASE + 0x100),
 750         .map_io       = davinci_evm_map_io,
 751         .init_irq     = davinci_evm_irq_init,
 752         .timer        = &davinci_timer,
 753         .init_machine = davinci_evm_init,
 754 MACHINE_END