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/gpio/machine.h>
  17 #include <linux/i2c.h>
  18 #include <linux/platform_data/pcf857x.h>
  19 #include <linux/platform_data/gpio-davinci.h>
  20 #include <linux/property.h>
  21 #include <linux/mtd/mtd.h>
  22 #include <linux/mtd/rawnand.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/nvmem-provider.h>
  26 #include <linux/phy.h>
  27 #include <linux/clk.h>
  28 #include <linux/videodev2.h>
  29 #include <linux/v4l2-dv-timings.h>
  30 #include <linux/export.h>
  31 #include <linux/leds.h>
  32 #include <linux/regulator/fixed.h>
  33 #include <linux/regulator/machine.h>
  34
  35 #include <media/i2c/tvp514x.h>
  36
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39
  40 #include <linux/platform_data/i2c-davinci.h>
  41 #include <linux/platform_data/mtd-davinci.h>
  42 #include <linux/platform_data/mmc-davinci.h>
  43 #include <linux/platform_data/usb-davinci.h>
  44 #include <linux/platform_data/mtd-davinci-aemif.h>
  45 #include <linux/platform_data/ti-aemif.h>
  46
  47 #include "davinci.h"
  48 #include "common.h"
  49 #include "mux.h"
  50 #include "serial.h"
  51 #include "irqs.h"
  52
  53 #define DM644X_EVM_PHY_ID               "davinci_mdio-0:01"
  54 #define LXT971_PHY_ID   (0x001378e2)
  55 #define LXT971_PHY_MASK (0xfffffff0)
  56
  57 static struct mtd_partition davinci_evm_norflash_partitions[] = {
  58         /* bootloader (UBL, U-Boot, etc) in first 5 sectors */
  59         {
  60                 .name           = "bootloader",
  61                 .offset         = 0,
  62                 .size           = 5 * SZ_64K,
  63                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  64         },
  65         /* bootloader params in the next 1 sectors */
  66         {
  67                 .name           = "params",
  68                 .offset         = MTDPART_OFS_APPEND,
  69                 .size           = SZ_64K,
  70                 .mask_flags     = 0,
  71         },
  72         /* kernel */
  73         {
  74                 .name           = "kernel",
  75                 .offset         = MTDPART_OFS_APPEND,
  76                 .size           = SZ_2M,
  77                 .mask_flags     = 0
  78         },
  79         /* file system */
  80         {
  81                 .name           = "filesystem",
  82                 .offset         = MTDPART_OFS_APPEND,
  83                 .size           = MTDPART_SIZ_FULL,
  84                 .mask_flags     = 0
  85         }
  86 };
  87
  88 static struct physmap_flash_data davinci_evm_norflash_data = {
  89         .width          = 2,
  90         .parts          = davinci_evm_norflash_partitions,
  91         .nr_parts       = ARRAY_SIZE(davinci_evm_norflash_partitions),
  92 };
  93
  94 /* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
  95  * limits addresses to 16M, so using addresses past 16M will wrap */
  96 static struct resource davinci_evm_norflash_resource = {
  97         .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
  98         .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
  99         .flags          = IORESOURCE_MEM,
 100 };
 101
 102 static struct platform_device davinci_evm_norflash_device = {
 103         .name           = "physmap-flash",
 104         .id             = 0,
 105         .dev            = {
 106                 .platform_data  = &davinci_evm_norflash_data,
 107         },
 108         .num_resources  = 1,
 109         .resource       = &davinci_evm_norflash_resource,
 110 };
 111
 112 /* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks).
 113  * It may used instead of the (default) NOR chip to boot, using TI's
 114  * tools to install the secondary boot loader (UBL) and U-Boot.
 115  */
 116 static struct mtd_partition davinci_evm_nandflash_partition[] = {
 117         /* Bootloader layout depends on whose u-boot is installed, but we
 118          * can hide all the details.
 119          *  - block 0 for u-boot environment ... in mainline u-boot
 120          *  - block 1 for UBL (plus up to four backup copies in blocks 2..5)
 121          *  - blocks 6...? for u-boot
 122          *  - blocks 16..23 for u-boot environment ... in TI's u-boot
 123          */
 124         {
 125                 .name           = "bootloader",
 126                 .offset         = 0,
 127                 .size           = SZ_256K + SZ_128K,
 128                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 129         },
 130         /* Kernel */
 131         {
 132                 .name           = "kernel",
 133                 .offset         = MTDPART_OFS_APPEND,
 134                 .size           = SZ_4M,
 135                 .mask_flags     = 0,
 136         },
 137         /* File system (older GIT kernels started this on the 5MB mark) */
 138         {
 139                 .name           = "filesystem",
 140                 .offset         = MTDPART_OFS_APPEND,
 141                 .size           = MTDPART_SIZ_FULL,
 142                 .mask_flags     = 0,
 143         }
 144         /* A few blocks at end hold a flash BBT ... created by TI's CCS
 145          * using flashwriter_nand.out, but ignored by TI's versions of
 146          * Linux and u-boot.  We boot faster by using them.
 147          */
 148 };
 149
 150 static struct davinci_aemif_timing davinci_evm_nandflash_timing = {
 151         .wsetup         = 20,
 152         .wstrobe        = 40,
 153         .whold          = 20,
 154         .rsetup         = 10,
 155         .rstrobe        = 40,
 156         .rhold          = 10,
 157         .ta             = 40,
 158 };
 159
 160 static struct davinci_nand_pdata davinci_evm_nandflash_data = {
 161         .core_chipsel   = 0,
 162         .parts          = davinci_evm_nandflash_partition,
 163         .nr_parts       = ARRAY_SIZE(davinci_evm_nandflash_partition),
 164         .engine_type    = NAND_ECC_ENGINE_TYPE_ON_HOST,
 165         .ecc_bits       = 1,
 166         .bbt_options    = NAND_BBT_USE_FLASH,
 167         .timing         = &davinci_evm_nandflash_timing,
 168 };
 169
 170 static struct resource davinci_evm_nandflash_resource[] = {
 171         {
 172                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
 173                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 174                 .flags          = IORESOURCE_MEM,
 175         }, {
 176                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 177                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 178                 .flags          = IORESOURCE_MEM,
 179         },
 180 };
 181
 182 static struct resource davinci_evm_aemif_resource[] = {
 183         {
 184                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 185                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 186                 .flags          = IORESOURCE_MEM,
 187         },
 188 };
 189
 190 static struct aemif_abus_data davinci_evm_aemif_abus_data[] = {
 191         {
 192                 .cs             = 1,
 193         },
 194 };
 195
 196 static struct platform_device davinci_evm_nandflash_devices[] = {
 197         {
 198                 .name           = "davinci_nand",
 199                 .id             = 0,
 200                 .dev            = {
 201                         .platform_data  = &davinci_evm_nandflash_data,
 202                 },
 203                 .num_resources  = ARRAY_SIZE(davinci_evm_nandflash_resource),
 204                 .resource       = davinci_evm_nandflash_resource,
 205         },
 206 };
 207
 208 static struct aemif_platform_data davinci_evm_aemif_pdata = {
 209         .abus_data = davinci_evm_aemif_abus_data,
 210         .num_abus_data = ARRAY_SIZE(davinci_evm_aemif_abus_data),
 211         .sub_devices = davinci_evm_nandflash_devices,
 212         .num_sub_devices = ARRAY_SIZE(davinci_evm_nandflash_devices),
 213 };
 214
 215 static struct platform_device davinci_evm_aemif_device = {
 216         .name                   = "ti-aemif",
 217         .id                     = -1,
 218         .dev = {
 219                 .platform_data  = &davinci_evm_aemif_pdata,
 220         },
 221         .resource               = davinci_evm_aemif_resource,
 222         .num_resources          = ARRAY_SIZE(davinci_evm_aemif_resource),
 223 };
 224
 225 static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
 226
 227 static struct platform_device davinci_fb_device = {
 228         .name           = "davincifb",
 229         .id             = -1,
 230         .dev = {
 231                 .dma_mask               = &davinci_fb_dma_mask,
 232                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 233         },
 234         .num_resources = 0,
 235 };
 236
 237 static struct tvp514x_platform_data dm644xevm_tvp5146_pdata = {
 238         .clk_polarity = 0,
 239         .hs_polarity = 1,
 240         .vs_polarity = 1
 241 };
 242
 243 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 244 /* Inputs available at the TVP5146 */
 245 static struct v4l2_input dm644xevm_tvp5146_inputs[] = {
 246         {
 247                 .index = 0,
 248                 .name = "Composite",
 249                 .type = V4L2_INPUT_TYPE_CAMERA,
 250                 .std = TVP514X_STD_ALL,
 251         },
 252         {
 253                 .index = 1,
 254                 .name = "S-Video",
 255                 .type = V4L2_INPUT_TYPE_CAMERA,
 256                 .std = TVP514X_STD_ALL,
 257         },
 258 };
 259
 260 /*
 261  * this is the route info for connecting each input to decoder
 262  * ouput that goes to vpfe. There is a one to one correspondence
 263  * with tvp5146_inputs
 264  */
 265 static struct vpfe_route dm644xevm_tvp5146_routes[] = {
 266         {
 267                 .input = INPUT_CVBS_VI2B,
 268                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 269         },
 270         {
 271                 .input = INPUT_SVIDEO_VI2C_VI1C,
 272                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 273         },
 274 };
 275
 276 static struct vpfe_subdev_info dm644xevm_vpfe_sub_devs[] = {
 277         {
 278                 .name = "tvp5146",
 279                 .grp_id = 0,
 280                 .num_inputs = ARRAY_SIZE(dm644xevm_tvp5146_inputs),
 281                 .inputs = dm644xevm_tvp5146_inputs,
 282                 .routes = dm644xevm_tvp5146_routes,
 283                 .can_route = 1,
 284                 .ccdc_if_params = {
 285                         .if_type = VPFE_BT656,
 286                         .hdpol = VPFE_PINPOL_POSITIVE,
 287                         .vdpol = VPFE_PINPOL_POSITIVE,
 288                 },
 289                 .board_info = {
 290                         I2C_BOARD_INFO("tvp5146", 0x5d),
 291                         .platform_data = &dm644xevm_tvp5146_pdata,
 292                 },
 293         },
 294 };
 295
 296 static struct vpfe_config dm644xevm_capture_cfg = {
 297         .num_subdevs = ARRAY_SIZE(dm644xevm_vpfe_sub_devs),
 298         .i2c_adapter_id = 1,
 299         .sub_devs = dm644xevm_vpfe_sub_devs,
 300         .card_name = "DM6446 EVM",
 301         .ccdc = "DM6446 CCDC",
 302 };
 303
 304 static struct platform_device rtc_dev = {
 305         .name           = "rtc_davinci_evm",
 306         .id             = -1,
 307 };
 308
 309 /*----------------------------------------------------------------------*/
 310 #ifdef CONFIG_I2C
 311 /*
 312  * I2C GPIO expanders
 313  */
 314
 315 #define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
 316
 317
 318 /* U2 -- LEDs */
 319
 320 static struct gpio_led evm_leds[] = {
 321         { .name = "DS8", .active_low = 1,
 322                 .default_trigger = "heartbeat", },
 323         { .name = "DS7", .active_low = 1, },
 324         { .name = "DS6", .active_low = 1, },
 325         { .name = "DS5", .active_low = 1, },
 326         { .name = "DS4", .active_low = 1, },
 327         { .name = "DS3", .active_low = 1, },
 328         { .name = "DS2", .active_low = 1,
 329                 .default_trigger = "mmc0", },
 330         { .name = "DS1", .active_low = 1,
 331                 .default_trigger = "disk-activity", },
 332 };
 333
 334 static const struct gpio_led_platform_data evm_led_data = {
 335         .num_leds       = ARRAY_SIZE(evm_leds),
 336         .leds           = evm_leds,
 337 };
 338
 339 static struct platform_device *evm_led_dev;
 340
 341 static int
 342 evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 343 {
 344         struct gpio_led *leds = evm_leds;
 345         int status;
 346
 347         while (ngpio--) {
 348                 leds->gpio = gpio++;
 349                 leds++;
 350         }
 351
 352         /* what an extremely annoying way to be forced to handle
 353          * device unregistration ...
 354          */
 355         evm_led_dev = platform_device_alloc("leds-gpio", 0);
 356         platform_device_add_data(evm_led_dev,
 357                         &evm_led_data, sizeof evm_led_data);
 358
 359         evm_led_dev->dev.parent = &client->dev;
 360         status = platform_device_add(evm_led_dev);
 361         if (status < 0) {
 362                 platform_device_put(evm_led_dev);
 363                 evm_led_dev = NULL;
 364         }
 365         return status;
 366 }
 367
 368 static int
 369 evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 370 {
 371         if (evm_led_dev) {
 372                 platform_device_unregister(evm_led_dev);
 373                 evm_led_dev = NULL;
 374         }
 375         return 0;
 376 }
 377
 378 static struct pcf857x_platform_data pcf_data_u2 = {
 379         .gpio_base      = PCF_Uxx_BASE(0),
 380         .setup          = evm_led_setup,
 381         .teardown       = evm_led_teardown,
 382 };
 383
 384
 385 /* U18 - A/V clock generator and user switch */
 386
 387 static int sw_gpio;
 388
 389 static ssize_t
 390 sw_show(struct device *d, struct device_attribute *a, char *buf)
 391 {
 392         char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
 393
 394         strcpy(buf, s);
 395         return strlen(s);
 396 }
 397
 398 static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
 399
 400 static int
 401 evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 402 {
 403         int     status;
 404
 405         /* export dip switch option */
 406         sw_gpio = gpio + 7;
 407         status = gpio_request(sw_gpio, "user_sw");
 408         if (status == 0)
 409                 status = gpio_direction_input(sw_gpio);
 410         if (status == 0)
 411                 status = device_create_file(&client->dev, &dev_attr_user_sw);
 412         else
 413                 gpio_free(sw_gpio);
 414         if (status != 0)
 415                 sw_gpio = -EINVAL;
 416
 417         /* audio PLL:  48 kHz (vs 44.1 or 32), single rate (vs double) */
 418         gpio_request(gpio + 3, "pll_fs2");
 419         gpio_direction_output(gpio + 3, 0);
 420
 421         gpio_request(gpio + 2, "pll_fs1");
 422         gpio_direction_output(gpio + 2, 0);
 423
 424         gpio_request(gpio + 1, "pll_sr");
 425         gpio_direction_output(gpio + 1, 0);
 426
 427         return 0;
 428 }
 429
 430 static int
 431 evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 432 {
 433         gpio_free(gpio + 1);
 434         gpio_free(gpio + 2);
 435         gpio_free(gpio + 3);
 436
 437         if (sw_gpio > 0) {
 438                 device_remove_file(&client->dev, &dev_attr_user_sw);
 439                 gpio_free(sw_gpio);
 440         }
 441         return 0;
 442 }
 443
 444 static struct pcf857x_platform_data pcf_data_u18 = {
 445         .gpio_base      = PCF_Uxx_BASE(1),
 446         .n_latch        = (1 << 3) | (1 << 2) | (1 << 1),
 447         .setup          = evm_u18_setup,
 448         .teardown       = evm_u18_teardown,
 449 };
 450
 451
 452 /* U35 - various I/O signals used to manage USB, CF, ATA, etc */
 453
 454 static int
 455 evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 456 {
 457         /* p0 = nDRV_VBUS (initial:  don't supply it) */
 458         gpio_request(gpio + 0, "nDRV_VBUS");
 459         gpio_direction_output(gpio + 0, 1);
 460
 461         /* p1 = VDDIMX_EN */
 462         gpio_request(gpio + 1, "VDDIMX_EN");
 463         gpio_direction_output(gpio + 1, 1);
 464
 465         /* p2 = VLYNQ_EN */
 466         gpio_request(gpio + 2, "VLYNQ_EN");
 467         gpio_direction_output(gpio + 2, 1);
 468
 469         /* p3 = n3V3_CF_RESET (initial: stay in reset) */
 470         gpio_request(gpio + 3, "nCF_RESET");
 471         gpio_direction_output(gpio + 3, 0);
 472
 473         /* (p4 unused) */
 474
 475         /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
 476         gpio_request(gpio + 5, "WLAN_RESET");
 477         gpio_direction_output(gpio + 5, 1);
 478
 479         /* p6 = nATA_SEL (initial: select) */
 480         gpio_request(gpio + 6, "nATA_SEL");
 481         gpio_direction_output(gpio + 6, 0);
 482
 483         /* p7 = nCF_SEL (initial: deselect) */
 484         gpio_request(gpio + 7, "nCF_SEL");
 485         gpio_direction_output(gpio + 7, 1);
 486
 487         return 0;
 488 }
 489
 490 static int
 491 evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 492 {
 493         gpio_free(gpio + 7);
 494         gpio_free(gpio + 6);
 495         gpio_free(gpio + 5);
 496         gpio_free(gpio + 3);
 497         gpio_free(gpio + 2);
 498         gpio_free(gpio + 1);
 499         gpio_free(gpio + 0);
 500         return 0;
 501 }
 502
 503 static struct pcf857x_platform_data pcf_data_u35 = {
 504         .gpio_base      = PCF_Uxx_BASE(2),
 505         .setup          = evm_u35_setup,
 506         .teardown       = evm_u35_teardown,
 507 };
 508
 509 /*----------------------------------------------------------------------*/
 510
 511 /* Most of this EEPROM is unused, but U-Boot uses some data:
 512  *  - 0x7f00, 6 bytes Ethernet Address
 513  *  - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
 514  *  - ... newer boards may have more
 515  */
 516
 517 static struct nvmem_cell_info dm644evm_nvmem_cells[] = {
 518         {
 519                 .name           = "macaddr",
 520                 .offset         = 0x7f00,
 521                 .bytes          = ETH_ALEN,
 522         }
 523 };
 524
 525 static struct nvmem_cell_table dm644evm_nvmem_cell_table = {
 526         .nvmem_name     = "1-00500",
 527         .cells          = dm644evm_nvmem_cells,
 528         .ncells         = ARRAY_SIZE(dm644evm_nvmem_cells),
 529 };
 530
 531 static struct nvmem_cell_lookup dm644evm_nvmem_cell_lookup = {
 532         .nvmem_name     = "1-00500",
 533         .cell_name      = "macaddr",
 534         .dev_id         = "davinci_emac.1",
 535         .con_id         = "mac-address",
 536 };
 537
 538 static const struct property_entry eeprom_properties[] = {
 539         PROPERTY_ENTRY_U32("pagesize", 64),
 540         { }
 541 };
 542
 543 static const struct software_node eeprom_node = {
 544         .properties = eeprom_properties,
 545 };
 546
 547 /*
 548  * MSP430 supports RTC, card detection, input from IR remote, and
 549  * a bit more.  It triggers interrupts on GPIO(7) from pressing
 550  * buttons on the IR remote, and for card detect switches.
 551  */
 552 static struct i2c_client *dm6446evm_msp;
 553
 554 static int dm6446evm_msp_probe(struct i2c_client *client)
 555 {
 556         dm6446evm_msp = client;
 557         return 0;
 558 }
 559
 560 static int dm6446evm_msp_remove(struct i2c_client *client)
 561 {
 562         dm6446evm_msp = NULL;
 563         return 0;
 564 }
 565
 566 static const struct i2c_device_id dm6446evm_msp_ids[] = {
 567         { "dm6446evm_msp", 0, },
 568         { /* end of list */ },
 569 };
 570
 571 static struct i2c_driver dm6446evm_msp_driver = {
 572         .driver.name    = "dm6446evm_msp",
 573         .id_table       = dm6446evm_msp_ids,
 574         .probe_new      = dm6446evm_msp_probe,
 575         .remove         = dm6446evm_msp_remove,
 576 };
 577
 578 static int dm6444evm_msp430_get_pins(void)
 579 {
 580         static const char txbuf[2] = { 2, 4, };
 581         char buf[4];
 582         struct i2c_msg msg[2] = {
 583                 {
 584                         .flags = 0,
 585                         .len = 2,
 586                         .buf = (void __force *)txbuf,
 587                 },
 588                 {
 589                         .flags = I2C_M_RD,
 590                         .len = 4,
 591                         .buf = buf,
 592                 },
 593         };
 594         int status;
 595
 596         if (!dm6446evm_msp)
 597                 return -ENXIO;
 598
 599         msg[0].addr = dm6446evm_msp->addr;
 600         msg[1].addr = dm6446evm_msp->addr;
 601
 602         /* Command 4 == get input state, returns port 2 and port3 data
 603          *   S Addr W [A] len=2 [A] cmd=4 [A]
 604          *   RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P
 605          */
 606         status = i2c_transfer(dm6446evm_msp->adapter, msg, 2);
 607         if (status < 0)
 608                 return status;
 609
 610         dev_dbg(&dm6446evm_msp->dev, "PINS: %4ph\n", buf);
 611
 612         return (buf[3] << 8) | buf[2];
 613 }
 614
 615 static int dm6444evm_mmc_get_cd(int module)
 616 {
 617         int status = dm6444evm_msp430_get_pins();
 618
 619         return (status < 0) ? status : !(status & BIT(1));
 620 }
 621
 622 static int dm6444evm_mmc_get_ro(int module)
 623 {
 624         int status = dm6444evm_msp430_get_pins();
 625
 626         return (status < 0) ? status : status & BIT(6 + 8);
 627 }
 628
 629 static struct davinci_mmc_config dm6446evm_mmc_config = {
 630         .get_cd         = dm6444evm_mmc_get_cd,
 631         .get_ro         = dm6444evm_mmc_get_ro,
 632         .wires          = 4,
 633 };
 634
 635 static struct i2c_board_info __initdata i2c_info[] =  {
 636         {
 637                 I2C_BOARD_INFO("dm6446evm_msp", 0x23),
 638         },
 639         {
 640                 I2C_BOARD_INFO("pcf8574", 0x38),
 641                 .platform_data  = &pcf_data_u2,
 642         },
 643         {
 644                 I2C_BOARD_INFO("pcf8574", 0x39),
 645                 .platform_data  = &pcf_data_u18,
 646         },
 647         {
 648                 I2C_BOARD_INFO("pcf8574", 0x3a),
 649                 .platform_data  = &pcf_data_u35,
 650         },
 651         {
 652                 I2C_BOARD_INFO("24c256", 0x50),
 653                 .swnode = &eeprom_node,
 654         },
 655         {
 656                 I2C_BOARD_INFO("tlv320aic33", 0x1b),
 657         },
 658 };
 659
 660 #define DM644X_I2C_SDA_PIN      GPIO_TO_PIN(2, 12)
 661 #define DM644X_I2C_SCL_PIN      GPIO_TO_PIN(2, 11)
 662
 663 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
 664         .dev_id = "i2c_davinci.1",
 665         .table = {
 666                 GPIO_LOOKUP("davinci_gpio", DM644X_I2C_SDA_PIN, "sda",
 667                             GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 668                 GPIO_LOOKUP("davinci_gpio", DM644X_I2C_SCL_PIN, "scl",
 669                             GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 670                 { }
 671         },
 672 };
 673
 674 /* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
 675  * which requires 100 usec of idle bus after i2c writes sent to it.
 676  */
 677 static struct davinci_i2c_platform_data i2c_pdata = {
 678         .bus_freq       = 20 /* kHz */,
 679         .bus_delay      = 100 /* usec */,
 680         .gpio_recovery  = true,
 681 };
 682
 683 static void __init evm_init_i2c(void)
 684 {
 685         gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
 686         davinci_init_i2c(&i2c_pdata);
 687         i2c_add_driver(&dm6446evm_msp_driver);
 688         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 689 }
 690 #endif
 691
 692 /* Fixed regulator support */
 693 static struct regulator_consumer_supply fixed_supplies_3_3v[] = {
 694         /* Baseboard 3.3V: 5V -> TPS54310PWP -> 3.3V */
 695         REGULATOR_SUPPLY("AVDD", "1-001b"),
 696         REGULATOR_SUPPLY("DRVDD", "1-001b"),
 697 };
 698
 699 static struct regulator_consumer_supply fixed_supplies_1_8v[] = {
 700         /* Baseboard 1.8V: 5V -> TPS54310PWP -> 1.8V */
 701         REGULATOR_SUPPLY("IOVDD", "1-001b"),
 702         REGULATOR_SUPPLY("DVDD", "1-001b"),
 703 };
 704
 705 #define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 706
 707 /* venc standard timings */
 708 static struct vpbe_enc_mode_info dm644xevm_enc_std_timing[] = {
 709         {
 710                 .name           = "ntsc",
 711                 .timings_type   = VPBE_ENC_STD,
 712                 .std_id         = V4L2_STD_NTSC,
 713                 .interlaced     = 1,
 714                 .xres           = 720,
 715                 .yres           = 480,
 716                 .aspect         = {11, 10},
 717                 .fps            = {30000, 1001},
 718                 .left_margin    = 0x79,
 719                 .upper_margin   = 0x10,
 720         },
 721         {
 722                 .name           = "pal",
 723                 .timings_type   = VPBE_ENC_STD,
 724                 .std_id         = V4L2_STD_PAL,
 725                 .interlaced     = 1,
 726                 .xres           = 720,
 727                 .yres           = 576,
 728                 .aspect         = {54, 59},
 729                 .fps            = {25, 1},
 730                 .left_margin    = 0x7e,
 731                 .upper_margin   = 0x16,
 732         },
 733 };
 734
 735 /* venc dv preset timings */
 736 static struct vpbe_enc_mode_info dm644xevm_enc_preset_timing[] = {
 737         {
 738                 .name           = "480p59_94",
 739                 .timings_type   = VPBE_ENC_DV_TIMINGS,
 740                 .dv_timings     = V4L2_DV_BT_CEA_720X480P59_94,
 741                 .interlaced     = 0,
 742                 .xres           = 720,
 743                 .yres           = 480,
 744                 .aspect         = {1, 1},
 745                 .fps            = {5994, 100},
 746                 .left_margin    = 0x80,
 747                 .upper_margin   = 0x20,
 748         },
 749         {
 750                 .name           = "576p50",
 751                 .timings_type   = VPBE_ENC_DV_TIMINGS,
 752                 .dv_timings     = V4L2_DV_BT_CEA_720X576P50,
 753                 .interlaced     = 0,
 754                 .xres           = 720,
 755                 .yres           = 576,
 756                 .aspect         = {1, 1},
 757                 .fps            = {50, 1},
 758                 .left_margin    = 0x7e,
 759                 .upper_margin   = 0x30,
 760         },
 761 };
 762
 763 /*
 764  * The outputs available from VPBE + encoders. Keep the order same
 765  * as that of encoders. First those from venc followed by that from
 766  * encoders. Index in the output refers to index on a particular encoder.
 767  * Driver uses this index to pass it to encoder when it supports more
 768  * than one output. Userspace applications use index of the array to
 769  * set an output.
 770  */
 771 static struct vpbe_output dm644xevm_vpbe_outputs[] = {
 772         {
 773                 .output         = {
 774                         .index          = 0,
 775                         .name           = "Composite",
 776                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
 777                         .std            = VENC_STD_ALL,
 778                         .capabilities   = V4L2_OUT_CAP_STD,
 779                 },
 780                 .subdev_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
 781                 .default_mode   = "ntsc",
 782                 .num_modes      = ARRAY_SIZE(dm644xevm_enc_std_timing),
 783                 .modes          = dm644xevm_enc_std_timing,
 784         },
 785         {
 786                 .output         = {
 787                         .index          = 1,
 788                         .name           = "Component",
 789                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
 790                         .capabilities   = V4L2_OUT_CAP_DV_TIMINGS,
 791                 },
 792                 .subdev_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
 793                 .default_mode   = "480p59_94",
 794                 .num_modes      = ARRAY_SIZE(dm644xevm_enc_preset_timing),
 795                 .modes          = dm644xevm_enc_preset_timing,
 796         },
 797 };
 798
 799 static struct vpbe_config dm644xevm_display_cfg = {
 800         .module_name    = "dm644x-vpbe-display",
 801         .i2c_adapter_id = 1,
 802         .osd            = {
 803                 .module_name    = DM644X_VPBE_OSD_SUBDEV_NAME,
 804         },
 805         .venc           = {
 806                 .module_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
 807         },
 808         .num_outputs    = ARRAY_SIZE(dm644xevm_vpbe_outputs),
 809         .outputs        = dm644xevm_vpbe_outputs,
 810 };
 811
 812 static struct platform_device *davinci_evm_devices[] __initdata = {
 813         &davinci_fb_device,
 814         &rtc_dev,
 815 };
 816
 817 static void __init
 818 davinci_evm_map_io(void)
 819 {
 820         dm644x_init();
 821 }
 822
 823 static int davinci_phy_fixup(struct phy_device *phydev)
 824 {
 825         unsigned int control;
 826         /* CRITICAL: Fix for increasing PHY signal drive strength for
 827          * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY
 828          * signal strength was low causing  TX to fail randomly. The
 829          * fix is to Set bit 11 (Increased MII drive strength) of PHY
 830          * register 26 (Digital Config register) on this phy. */
 831         control = phy_read(phydev, 26);
 832         phy_write(phydev, 26, (control | 0x800));
 833         return 0;
 834 }
 835
 836 #define HAS_ATA         (IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
 837                          IS_ENABLED(CONFIG_PATA_BK3710))
 838
 839 #define HAS_NOR         IS_ENABLED(CONFIG_MTD_PHYSMAP)
 840
 841 #define HAS_NAND        IS_ENABLED(CONFIG_MTD_NAND_DAVINCI)
 842
 843 #define GPIO_nVBUS_DRV          160
 844
 845 static struct gpiod_lookup_table dm644evm_usb_gpio_table = {
 846         .dev_id = "musb-davinci",
 847         .table = {
 848                 GPIO_LOOKUP("davinci_gpio", GPIO_nVBUS_DRV, NULL,
 849                             GPIO_ACTIVE_HIGH),
 850                 { }
 851         },
 852 };
 853
 854 static __init void davinci_evm_init(void)
 855 {
 856         int ret;
 857         struct clk *aemif_clk;
 858         struct davinci_soc_info *soc_info = &davinci_soc_info;
 859
 860         dm644x_register_clocks();
 861
 862         regulator_register_always_on(0, "fixed-dummy", fixed_supplies_1_8v,
 863                                      ARRAY_SIZE(fixed_supplies_1_8v), 1800000);
 864         regulator_register_always_on(1, "fixed-dummy", fixed_supplies_3_3v,
 865                                      ARRAY_SIZE(fixed_supplies_3_3v), 3300000);
 866
 867         dm644x_init_devices();
 868
 869         ret = dm644x_gpio_register();
 870         if (ret)
 871                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 872
 873         aemif_clk = clk_get(NULL, "aemif");
 874         clk_prepare_enable(aemif_clk);
 875
 876         if (HAS_ATA) {
 877                 if (HAS_NAND || HAS_NOR)
 878                         pr_warn("WARNING: both IDE and Flash are enabled, but they share AEMIF pins\n"
 879                                 "\tDisable IDE for NAND/NOR support\n");
 880                 davinci_init_ide();
 881         } else if (HAS_NAND || HAS_NOR) {
 882                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 883                 davinci_cfg_reg(DM644X_ATAEN_DISABLE);
 884
 885                 /* only one device will be jumpered and detected */
 886                 if (HAS_NAND) {
 887                         platform_device_register(&davinci_evm_aemif_device);
 888 #ifdef CONFIG_I2C
 889                         evm_leds[7].default_trigger = "nand-disk";
 890 #endif
 891                         if (HAS_NOR)
 892                                 pr_warn("WARNING: both NAND and NOR flash are enabled; disable one of them.\n");
 893                 } else if (HAS_NOR)
 894                         platform_device_register(&davinci_evm_norflash_device);
 895         }
 896
 897         platform_add_devices(davinci_evm_devices,
 898                              ARRAY_SIZE(davinci_evm_devices));
 899 #ifdef CONFIG_I2C
 900         nvmem_add_cell_table(&dm644evm_nvmem_cell_table);
 901         nvmem_add_cell_lookups(&dm644evm_nvmem_cell_lookup, 1);
 902         evm_init_i2c();
 903         davinci_setup_mmc(0, &dm6446evm_mmc_config);
 904 #endif
 905         dm644x_init_video(&dm644xevm_capture_cfg, &dm644xevm_display_cfg);
 906
 907         davinci_serial_init(dm644x_serial_device);
 908         dm644x_init_asp();
 909
 910         /* irlml6401 switches over 1A, in under 8 msec */
 911         gpiod_add_lookup_table(&dm644evm_usb_gpio_table);
 912         davinci_setup_usb(1000, 8);
 913
 914         if (IS_BUILTIN(CONFIG_PHYLIB)) {
 915                 soc_info->emac_pdata->phy_id = DM644X_EVM_PHY_ID;
 916                 /* Register the fixup for PHY on DaVinci */
 917                 phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK,
 918                                                 davinci_phy_fixup);
 919         }
 920 }
 921
 922 MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
 923         /* Maintainer: MontaVista Software <source@mvista.com> */
 924         .atag_offset  = 0x100,
 925         .map_io       = davinci_evm_map_io,
 926         .init_irq     = dm644x_init_irq,
 927         .init_time      = dm644x_init_time,
 928         .init_machine = davinci_evm_init,
 929         .init_late      = davinci_init_late,
 930         .dma_zone_size  = SZ_128M,
 931 MACHINE_END