linux/arch/arm/mach-davinci/board-dm644x-evm.c
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   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 <mach/common.h>
  41#include <mach/mux.h>
  42#include <mach/serial.h>
  43
  44#include <linux/platform_data/i2c-davinci.h>
  45#include <linux/platform_data/mtd-davinci.h>
  46#include <linux/platform_data/mmc-davinci.h>
  47#include <linux/platform_data/usb-davinci.h>
  48#include <linux/platform_data/mtd-davinci-aemif.h>
  49#include <linux/platform_data/ti-aemif.h>
  50
  51#include "davinci.h"
  52#include "irqs.h"
  53
  54#define DM644X_EVM_PHY_ID               "davinci_mdio-0:01"
  55#define LXT971_PHY_ID   (0x001378e2)
  56#define LXT971_PHY_MASK (0xfffffff0)
  57
  58static struct mtd_partition davinci_evm_norflash_partitions[] = {
  59        /* bootloader (UBL, U-Boot, etc) in first 5 sectors */
  60        {
  61                .name           = "bootloader",
  62                .offset         = 0,
  63                .size           = 5 * SZ_64K,
  64                .mask_flags     = MTD_WRITEABLE, /* force read-only */
  65        },
  66        /* bootloader params in the next 1 sectors */
  67        {
  68                .name           = "params",
  69                .offset         = MTDPART_OFS_APPEND,
  70                .size           = SZ_64K,
  71                .mask_flags     = 0,
  72        },
  73        /* kernel */
  74        {
  75                .name           = "kernel",
  76                .offset         = MTDPART_OFS_APPEND,
  77                .size           = SZ_2M,
  78                .mask_flags     = 0
  79        },
  80        /* file system */
  81        {
  82                .name           = "filesystem",
  83                .offset         = MTDPART_OFS_APPEND,
  84                .size           = MTDPART_SIZ_FULL,
  85                .mask_flags     = 0
  86        }
  87};
  88
  89static struct physmap_flash_data davinci_evm_norflash_data = {
  90        .width          = 2,
  91        .parts          = davinci_evm_norflash_partitions,
  92        .nr_parts       = ARRAY_SIZE(davinci_evm_norflash_partitions),
  93};
  94
  95/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
  96 * limits addresses to 16M, so using addresses past 16M will wrap */
  97static struct resource davinci_evm_norflash_resource = {
  98        .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
  99        .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 100        .flags          = IORESOURCE_MEM,
 101};
 102
 103static struct platform_device davinci_evm_norflash_device = {
 104        .name           = "physmap-flash",
 105        .id             = 0,
 106        .dev            = {
 107                .platform_data  = &davinci_evm_norflash_data,
 108        },
 109        .num_resources  = 1,
 110        .resource       = &davinci_evm_norflash_resource,
 111};
 112
 113/* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks).
 114 * It may used instead of the (default) NOR chip to boot, using TI's
 115 * tools to install the secondary boot loader (UBL) and U-Boot.
 116 */
 117static struct mtd_partition davinci_evm_nandflash_partition[] = {
 118        /* Bootloader layout depends on whose u-boot is installed, but we
 119         * can hide all the details.
 120         *  - block 0 for u-boot environment ... in mainline u-boot
 121         *  - block 1 for UBL (plus up to four backup copies in blocks 2..5)
 122         *  - blocks 6...? for u-boot
 123         *  - blocks 16..23 for u-boot environment ... in TI's u-boot
 124         */
 125        {
 126                .name           = "bootloader",
 127                .offset         = 0,
 128                .size           = SZ_256K + SZ_128K,
 129                .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 130        },
 131        /* Kernel */
 132        {
 133                .name           = "kernel",
 134                .offset         = MTDPART_OFS_APPEND,
 135                .size           = SZ_4M,
 136                .mask_flags     = 0,
 137        },
 138        /* File system (older GIT kernels started this on the 5MB mark) */
 139        {
 140                .name           = "filesystem",
 141                .offset         = MTDPART_OFS_APPEND,
 142                .size           = MTDPART_SIZ_FULL,
 143                .mask_flags     = 0,
 144        }
 145        /* A few blocks at end hold a flash BBT ... created by TI's CCS
 146         * using flashwriter_nand.out, but ignored by TI's versions of
 147         * Linux and u-boot.  We boot faster by using them.
 148         */
 149};
 150
 151static struct davinci_aemif_timing davinci_evm_nandflash_timing = {
 152        .wsetup         = 20,
 153        .wstrobe        = 40,
 154        .whold          = 20,
 155        .rsetup         = 10,
 156        .rstrobe        = 40,
 157        .rhold          = 10,
 158        .ta             = 40,
 159};
 160
 161static struct davinci_nand_pdata davinci_evm_nandflash_data = {
 162        .core_chipsel   = 0,
 163        .parts          = davinci_evm_nandflash_partition,
 164        .nr_parts       = ARRAY_SIZE(davinci_evm_nandflash_partition),
 165        .engine_type    = NAND_ECC_ENGINE_TYPE_ON_HOST,
 166        .ecc_bits       = 1,
 167        .bbt_options    = NAND_BBT_USE_FLASH,
 168        .timing         = &davinci_evm_nandflash_timing,
 169};
 170
 171static struct resource davinci_evm_nandflash_resource[] = {
 172        {
 173                .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
 174                .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
 175                .flags          = IORESOURCE_MEM,
 176        }, {
 177                .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 178                .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 179                .flags          = IORESOURCE_MEM,
 180        },
 181};
 182
 183static struct resource davinci_evm_aemif_resource[] = {
 184        {
 185                .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
 186                .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 187                .flags          = IORESOURCE_MEM,
 188        },
 189};
 190
 191static struct aemif_abus_data davinci_evm_aemif_abus_data[] = {
 192        {
 193                .cs             = 1,
 194        },
 195};
 196
 197static struct platform_device davinci_evm_nandflash_devices[] = {
 198        {
 199                .name           = "davinci_nand",
 200                .id             = 0,
 201                .dev            = {
 202                        .platform_data  = &davinci_evm_nandflash_data,
 203                },
 204                .num_resources  = ARRAY_SIZE(davinci_evm_nandflash_resource),
 205                .resource       = davinci_evm_nandflash_resource,
 206        },
 207};
 208
 209static struct aemif_platform_data davinci_evm_aemif_pdata = {
 210        .abus_data = davinci_evm_aemif_abus_data,
 211        .num_abus_data = ARRAY_SIZE(davinci_evm_aemif_abus_data),
 212        .sub_devices = davinci_evm_nandflash_devices,
 213        .num_sub_devices = ARRAY_SIZE(davinci_evm_nandflash_devices),
 214};
 215
 216static struct platform_device davinci_evm_aemif_device = {
 217        .name                   = "ti-aemif",
 218        .id                     = -1,
 219        .dev = {
 220                .platform_data  = &davinci_evm_aemif_pdata,
 221        },
 222        .resource               = davinci_evm_aemif_resource,
 223        .num_resources          = ARRAY_SIZE(davinci_evm_aemif_resource),
 224};
 225
 226static u64 davinci_fb_dma_mask = DMA_BIT_MASK(32);
 227
 228static struct platform_device davinci_fb_device = {
 229        .name           = "davincifb",
 230        .id             = -1,
 231        .dev = {
 232                .dma_mask               = &davinci_fb_dma_mask,
 233                .coherent_dma_mask      = DMA_BIT_MASK(32),
 234        },
 235        .num_resources = 0,
 236};
 237
 238static struct tvp514x_platform_data dm644xevm_tvp5146_pdata = {
 239        .clk_polarity = 0,
 240        .hs_polarity = 1,
 241        .vs_polarity = 1
 242};
 243
 244#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 245/* Inputs available at the TVP5146 */
 246static struct v4l2_input dm644xevm_tvp5146_inputs[] = {
 247        {
 248                .index = 0,
 249                .name = "Composite",
 250                .type = V4L2_INPUT_TYPE_CAMERA,
 251                .std = TVP514X_STD_ALL,
 252        },
 253        {
 254                .index = 1,
 255                .name = "S-Video",
 256                .type = V4L2_INPUT_TYPE_CAMERA,
 257                .std = TVP514X_STD_ALL,
 258        },
 259};
 260
 261/*
 262 * this is the route info for connecting each input to decoder
 263 * ouput that goes to vpfe. There is a one to one correspondence
 264 * with tvp5146_inputs
 265 */
 266static struct vpfe_route dm644xevm_tvp5146_routes[] = {
 267        {
 268                .input = INPUT_CVBS_VI2B,
 269                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 270        },
 271        {
 272                .input = INPUT_SVIDEO_VI2C_VI1C,
 273                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 274        },
 275};
 276
 277static struct vpfe_subdev_info dm644xevm_vpfe_sub_devs[] = {
 278        {
 279                .name = "tvp5146",
 280                .grp_id = 0,
 281                .num_inputs = ARRAY_SIZE(dm644xevm_tvp5146_inputs),
 282                .inputs = dm644xevm_tvp5146_inputs,
 283                .routes = dm644xevm_tvp5146_routes,
 284                .can_route = 1,
 285                .ccdc_if_params = {
 286                        .if_type = VPFE_BT656,
 287                        .hdpol = VPFE_PINPOL_POSITIVE,
 288                        .vdpol = VPFE_PINPOL_POSITIVE,
 289                },
 290                .board_info = {
 291                        I2C_BOARD_INFO("tvp5146", 0x5d),
 292                        .platform_data = &dm644xevm_tvp5146_pdata,
 293                },
 294        },
 295};
 296
 297static struct vpfe_config dm644xevm_capture_cfg = {
 298        .num_subdevs = ARRAY_SIZE(dm644xevm_vpfe_sub_devs),
 299        .i2c_adapter_id = 1,
 300        .sub_devs = dm644xevm_vpfe_sub_devs,
 301        .card_name = "DM6446 EVM",
 302        .ccdc = "DM6446 CCDC",
 303};
 304
 305static struct platform_device rtc_dev = {
 306        .name           = "rtc_davinci_evm",
 307        .id             = -1,
 308};
 309
 310/*----------------------------------------------------------------------*/
 311#ifdef CONFIG_I2C
 312/*
 313 * I2C GPIO expanders
 314 */
 315
 316#define PCF_Uxx_BASE(x) (DAVINCI_N_GPIO + ((x) * 8))
 317
 318
 319/* U2 -- LEDs */
 320
 321static struct gpio_led evm_leds[] = {
 322        { .name = "DS8", .active_low = 1,
 323                .default_trigger = "heartbeat", },
 324        { .name = "DS7", .active_low = 1, },
 325        { .name = "DS6", .active_low = 1, },
 326        { .name = "DS5", .active_low = 1, },
 327        { .name = "DS4", .active_low = 1, },
 328        { .name = "DS3", .active_low = 1, },
 329        { .name = "DS2", .active_low = 1,
 330                .default_trigger = "mmc0", },
 331        { .name = "DS1", .active_low = 1,
 332                .default_trigger = "disk-activity", },
 333};
 334
 335static const struct gpio_led_platform_data evm_led_data = {
 336        .num_leds       = ARRAY_SIZE(evm_leds),
 337        .leds           = evm_leds,
 338};
 339
 340static struct platform_device *evm_led_dev;
 341
 342static int
 343evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 344{
 345        struct gpio_led *leds = evm_leds;
 346        int status;
 347
 348        while (ngpio--) {
 349                leds->gpio = gpio++;
 350                leds++;
 351        }
 352
 353        /* what an extremely annoying way to be forced to handle
 354         * device unregistration ...
 355         */
 356        evm_led_dev = platform_device_alloc("leds-gpio", 0);
 357        platform_device_add_data(evm_led_dev,
 358                        &evm_led_data, sizeof evm_led_data);
 359
 360        evm_led_dev->dev.parent = &client->dev;
 361        status = platform_device_add(evm_led_dev);
 362        if (status < 0) {
 363                platform_device_put(evm_led_dev);
 364                evm_led_dev = NULL;
 365        }
 366        return status;
 367}
 368
 369static int
 370evm_led_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 371{
 372        if (evm_led_dev) {
 373                platform_device_unregister(evm_led_dev);
 374                evm_led_dev = NULL;
 375        }
 376        return 0;
 377}
 378
 379static struct pcf857x_platform_data pcf_data_u2 = {
 380        .gpio_base      = PCF_Uxx_BASE(0),
 381        .setup          = evm_led_setup,
 382        .teardown       = evm_led_teardown,
 383};
 384
 385
 386/* U18 - A/V clock generator and user switch */
 387
 388static int sw_gpio;
 389
 390static ssize_t
 391sw_show(struct device *d, struct device_attribute *a, char *buf)
 392{
 393        char *s = gpio_get_value_cansleep(sw_gpio) ? "on\n" : "off\n";
 394
 395        strcpy(buf, s);
 396        return strlen(s);
 397}
 398
 399static DEVICE_ATTR(user_sw, S_IRUGO, sw_show, NULL);
 400
 401static int
 402evm_u18_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 403{
 404        int     status;
 405
 406        /* export dip switch option */
 407        sw_gpio = gpio + 7;
 408        status = gpio_request(sw_gpio, "user_sw");
 409        if (status == 0)
 410                status = gpio_direction_input(sw_gpio);
 411        if (status == 0)
 412                status = device_create_file(&client->dev, &dev_attr_user_sw);
 413        else
 414                gpio_free(sw_gpio);
 415        if (status != 0)
 416                sw_gpio = -EINVAL;
 417
 418        /* audio PLL:  48 kHz (vs 44.1 or 32), single rate (vs double) */
 419        gpio_request(gpio + 3, "pll_fs2");
 420        gpio_direction_output(gpio + 3, 0);
 421
 422        gpio_request(gpio + 2, "pll_fs1");
 423        gpio_direction_output(gpio + 2, 0);
 424
 425        gpio_request(gpio + 1, "pll_sr");
 426        gpio_direction_output(gpio + 1, 0);
 427
 428        return 0;
 429}
 430
 431static int
 432evm_u18_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 433{
 434        gpio_free(gpio + 1);
 435        gpio_free(gpio + 2);
 436        gpio_free(gpio + 3);
 437
 438        if (sw_gpio > 0) {
 439                device_remove_file(&client->dev, &dev_attr_user_sw);
 440                gpio_free(sw_gpio);
 441        }
 442        return 0;
 443}
 444
 445static struct pcf857x_platform_data pcf_data_u18 = {
 446        .gpio_base      = PCF_Uxx_BASE(1),
 447        .n_latch        = (1 << 3) | (1 << 2) | (1 << 1),
 448        .setup          = evm_u18_setup,
 449        .teardown       = evm_u18_teardown,
 450};
 451
 452
 453/* U35 - various I/O signals used to manage USB, CF, ATA, etc */
 454
 455static int
 456evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 457{
 458        /* p0 = nDRV_VBUS (initial:  don't supply it) */
 459        gpio_request(gpio + 0, "nDRV_VBUS");
 460        gpio_direction_output(gpio + 0, 1);
 461
 462        /* p1 = VDDIMX_EN */
 463        gpio_request(gpio + 1, "VDDIMX_EN");
 464        gpio_direction_output(gpio + 1, 1);
 465
 466        /* p2 = VLYNQ_EN */
 467        gpio_request(gpio + 2, "VLYNQ_EN");
 468        gpio_direction_output(gpio + 2, 1);
 469
 470        /* p3 = n3V3_CF_RESET (initial: stay in reset) */
 471        gpio_request(gpio + 3, "nCF_RESET");
 472        gpio_direction_output(gpio + 3, 0);
 473
 474        /* (p4 unused) */
 475
 476        /* p5 = 1V8_WLAN_RESET (initial: stay in reset) */
 477        gpio_request(gpio + 5, "WLAN_RESET");
 478        gpio_direction_output(gpio + 5, 1);
 479
 480        /* p6 = nATA_SEL (initial: select) */
 481        gpio_request(gpio + 6, "nATA_SEL");
 482        gpio_direction_output(gpio + 6, 0);
 483
 484        /* p7 = nCF_SEL (initial: deselect) */
 485        gpio_request(gpio + 7, "nCF_SEL");
 486        gpio_direction_output(gpio + 7, 1);
 487
 488        return 0;
 489}
 490
 491static int
 492evm_u35_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 493{
 494        gpio_free(gpio + 7);
 495        gpio_free(gpio + 6);
 496        gpio_free(gpio + 5);
 497        gpio_free(gpio + 3);
 498        gpio_free(gpio + 2);
 499        gpio_free(gpio + 1);
 500        gpio_free(gpio + 0);
 501        return 0;
 502}
 503
 504static struct pcf857x_platform_data pcf_data_u35 = {
 505        .gpio_base      = PCF_Uxx_BASE(2),
 506        .setup          = evm_u35_setup,
 507        .teardown       = evm_u35_teardown,
 508};
 509
 510/*----------------------------------------------------------------------*/
 511
 512/* Most of this EEPROM is unused, but U-Boot uses some data:
 513 *  - 0x7f00, 6 bytes Ethernet Address
 514 *  - 0x0039, 1 byte NTSC vs PAL (bit 0x80 == PAL)
 515 *  - ... newer boards may have more
 516 */
 517
 518static struct nvmem_cell_info dm644evm_nvmem_cells[] = {
 519        {
 520                .name           = "macaddr",
 521                .offset         = 0x7f00,
 522                .bytes          = ETH_ALEN,
 523        }
 524};
 525
 526static struct nvmem_cell_table dm644evm_nvmem_cell_table = {
 527        .nvmem_name     = "1-00500",
 528        .cells          = dm644evm_nvmem_cells,
 529        .ncells         = ARRAY_SIZE(dm644evm_nvmem_cells),
 530};
 531
 532static struct nvmem_cell_lookup dm644evm_nvmem_cell_lookup = {
 533        .nvmem_name     = "1-00500",
 534        .cell_name      = "macaddr",
 535        .dev_id         = "davinci_emac.1",
 536        .con_id         = "mac-address",
 537};
 538
 539static const struct property_entry eeprom_properties[] = {
 540        PROPERTY_ENTRY_U32("pagesize", 64),
 541        { }
 542};
 543
 544static const struct software_node eeprom_node = {
 545        .properties = eeprom_properties,
 546};
 547
 548/*
 549 * MSP430 supports RTC, card detection, input from IR remote, and
 550 * a bit more.  It triggers interrupts on GPIO(7) from pressing
 551 * buttons on the IR remote, and for card detect switches.
 552 */
 553static struct i2c_client *dm6446evm_msp;
 554
 555static int dm6446evm_msp_probe(struct i2c_client *client)
 556{
 557        dm6446evm_msp = client;
 558        return 0;
 559}
 560
 561static int dm6446evm_msp_remove(struct i2c_client *client)
 562{
 563        dm6446evm_msp = NULL;
 564        return 0;
 565}
 566
 567static const struct i2c_device_id dm6446evm_msp_ids[] = {
 568        { "dm6446evm_msp", 0, },
 569        { /* end of list */ },
 570};
 571
 572static struct i2c_driver dm6446evm_msp_driver = {
 573        .driver.name    = "dm6446evm_msp",
 574        .id_table       = dm6446evm_msp_ids,
 575        .probe_new      = dm6446evm_msp_probe,
 576        .remove         = dm6446evm_msp_remove,
 577};
 578
 579static int dm6444evm_msp430_get_pins(void)
 580{
 581        static const char txbuf[2] = { 2, 4, };
 582        char buf[4];
 583        struct i2c_msg msg[2] = {
 584                {
 585                        .flags = 0,
 586                        .len = 2,
 587                        .buf = (void __force *)txbuf,
 588                },
 589                {
 590                        .flags = I2C_M_RD,
 591                        .len = 4,
 592                        .buf = buf,
 593                },
 594        };
 595        int status;
 596
 597        if (!dm6446evm_msp)
 598                return -ENXIO;
 599
 600        msg[0].addr = dm6446evm_msp->addr;
 601        msg[1].addr = dm6446evm_msp->addr;
 602
 603        /* Command 4 == get input state, returns port 2 and port3 data
 604         *   S Addr W [A] len=2 [A] cmd=4 [A]
 605         *   RS Addr R [A] [len=4] A [cmd=4] A [port2] A [port3] N P
 606         */
 607        status = i2c_transfer(dm6446evm_msp->adapter, msg, 2);
 608        if (status < 0)
 609                return status;
 610
 611        dev_dbg(&dm6446evm_msp->dev, "PINS: %4ph\n", buf);
 612
 613        return (buf[3] << 8) | buf[2];
 614}
 615
 616static int dm6444evm_mmc_get_cd(int module)
 617{
 618        int status = dm6444evm_msp430_get_pins();
 619
 620        return (status < 0) ? status : !(status & BIT(1));
 621}
 622
 623static int dm6444evm_mmc_get_ro(int module)
 624{
 625        int status = dm6444evm_msp430_get_pins();
 626
 627        return (status < 0) ? status : status & BIT(6 + 8);
 628}
 629
 630static struct davinci_mmc_config dm6446evm_mmc_config = {
 631        .get_cd         = dm6444evm_mmc_get_cd,
 632        .get_ro         = dm6444evm_mmc_get_ro,
 633        .wires          = 4,
 634};
 635
 636static struct i2c_board_info __initdata i2c_info[] =  {
 637        {
 638                I2C_BOARD_INFO("dm6446evm_msp", 0x23),
 639        },
 640        {
 641                I2C_BOARD_INFO("pcf8574", 0x38),
 642                .platform_data  = &pcf_data_u2,
 643        },
 644        {
 645                I2C_BOARD_INFO("pcf8574", 0x39),
 646                .platform_data  = &pcf_data_u18,
 647        },
 648        {
 649                I2C_BOARD_INFO("pcf8574", 0x3a),
 650                .platform_data  = &pcf_data_u35,
 651        },
 652        {
 653                I2C_BOARD_INFO("24c256", 0x50),
 654                .swnode = &eeprom_node,
 655        },
 656        {
 657                I2C_BOARD_INFO("tlv320aic33", 0x1b),
 658        },
 659};
 660
 661#define DM644X_I2C_SDA_PIN      GPIO_TO_PIN(2, 12)
 662#define DM644X_I2C_SCL_PIN      GPIO_TO_PIN(2, 11)
 663
 664static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
 665        .dev_id = "i2c_davinci.1",
 666        .table = {
 667                GPIO_LOOKUP("davinci_gpio", DM644X_I2C_SDA_PIN, "sda",
 668                            GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 669                GPIO_LOOKUP("davinci_gpio", DM644X_I2C_SCL_PIN, "scl",
 670                            GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 671                { }
 672        },
 673};
 674
 675/* The msp430 uses a slow bitbanged I2C implementation (ergo 20 KHz),
 676 * which requires 100 usec of idle bus after i2c writes sent to it.
 677 */
 678static struct davinci_i2c_platform_data i2c_pdata = {
 679        .bus_freq       = 20 /* kHz */,
 680        .bus_delay      = 100 /* usec */,
 681        .gpio_recovery  = true,
 682};
 683
 684static void __init evm_init_i2c(void)
 685{
 686        gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
 687        davinci_init_i2c(&i2c_pdata);
 688        i2c_add_driver(&dm6446evm_msp_driver);
 689        i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 690}
 691#endif
 692
 693/* Fixed regulator support */
 694static struct regulator_consumer_supply fixed_supplies_3_3v[] = {
 695        /* Baseboard 3.3V: 5V -> TPS54310PWP -> 3.3V */
 696        REGULATOR_SUPPLY("AVDD", "1-001b"),
 697        REGULATOR_SUPPLY("DRVDD", "1-001b"),
 698};
 699
 700static struct regulator_consumer_supply fixed_supplies_1_8v[] = {
 701        /* Baseboard 1.8V: 5V -> TPS54310PWP -> 1.8V */
 702        REGULATOR_SUPPLY("IOVDD", "1-001b"),
 703        REGULATOR_SUPPLY("DVDD", "1-001b"),
 704};
 705
 706#define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 707
 708/* venc standard timings */
 709static struct vpbe_enc_mode_info dm644xevm_enc_std_timing[] = {
 710        {
 711                .name           = "ntsc",
 712                .timings_type   = VPBE_ENC_STD,
 713                .std_id         = V4L2_STD_NTSC,
 714                .interlaced     = 1,
 715                .xres           = 720,
 716                .yres           = 480,
 717                .aspect         = {11, 10},
 718                .fps            = {30000, 1001},
 719                .left_margin    = 0x79,
 720                .upper_margin   = 0x10,
 721        },
 722        {
 723                .name           = "pal",
 724                .timings_type   = VPBE_ENC_STD,
 725                .std_id         = V4L2_STD_PAL,
 726                .interlaced     = 1,
 727                .xres           = 720,
 728                .yres           = 576,
 729                .aspect         = {54, 59},
 730                .fps            = {25, 1},
 731                .left_margin    = 0x7e,
 732                .upper_margin   = 0x16,
 733        },
 734};
 735
 736/* venc dv preset timings */
 737static struct vpbe_enc_mode_info dm644xevm_enc_preset_timing[] = {
 738        {
 739                .name           = "480p59_94",
 740                .timings_type   = VPBE_ENC_DV_TIMINGS,
 741                .dv_timings     = V4L2_DV_BT_CEA_720X480P59_94,
 742                .interlaced     = 0,
 743                .xres           = 720,
 744                .yres           = 480,
 745                .aspect         = {1, 1},
 746                .fps            = {5994, 100},
 747                .left_margin    = 0x80,
 748                .upper_margin   = 0x20,
 749        },
 750        {
 751                .name           = "576p50",
 752                .timings_type   = VPBE_ENC_DV_TIMINGS,
 753                .dv_timings     = V4L2_DV_BT_CEA_720X576P50,
 754                .interlaced     = 0,
 755                .xres           = 720,
 756                .yres           = 576,
 757                .aspect         = {1, 1},
 758                .fps            = {50, 1},
 759                .left_margin    = 0x7e,
 760                .upper_margin   = 0x30,
 761        },
 762};
 763
 764/*
 765 * The outputs available from VPBE + encoders. Keep the order same
 766 * as that of encoders. First those from venc followed by that from
 767 * encoders. Index in the output refers to index on a particular encoder.
 768 * Driver uses this index to pass it to encoder when it supports more
 769 * than one output. Userspace applications use index of the array to
 770 * set an output.
 771 */
 772static struct vpbe_output dm644xevm_vpbe_outputs[] = {
 773        {
 774                .output         = {
 775                        .index          = 0,
 776                        .name           = "Composite",
 777                        .type           = V4L2_OUTPUT_TYPE_ANALOG,
 778                        .std            = VENC_STD_ALL,
 779                        .capabilities   = V4L2_OUT_CAP_STD,
 780                },
 781                .subdev_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
 782                .default_mode   = "ntsc",
 783                .num_modes      = ARRAY_SIZE(dm644xevm_enc_std_timing),
 784                .modes          = dm644xevm_enc_std_timing,
 785        },
 786        {
 787                .output         = {
 788                        .index          = 1,
 789                        .name           = "Component",
 790                        .type           = V4L2_OUTPUT_TYPE_ANALOG,
 791                        .capabilities   = V4L2_OUT_CAP_DV_TIMINGS,
 792                },
 793                .subdev_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
 794                .default_mode   = "480p59_94",
 795                .num_modes      = ARRAY_SIZE(dm644xevm_enc_preset_timing),
 796                .modes          = dm644xevm_enc_preset_timing,
 797        },
 798};
 799
 800static struct vpbe_config dm644xevm_display_cfg = {
 801        .module_name    = "dm644x-vpbe-display",
 802        .i2c_adapter_id = 1,
 803        .osd            = {
 804                .module_name    = DM644X_VPBE_OSD_SUBDEV_NAME,
 805        },
 806        .venc           = {
 807                .module_name    = DM644X_VPBE_VENC_SUBDEV_NAME,
 808        },
 809        .num_outputs    = ARRAY_SIZE(dm644xevm_vpbe_outputs),
 810        .outputs        = dm644xevm_vpbe_outputs,
 811};
 812
 813static struct platform_device *davinci_evm_devices[] __initdata = {
 814        &davinci_fb_device,
 815        &rtc_dev,
 816};
 817
 818static void __init
 819davinci_evm_map_io(void)
 820{
 821        dm644x_init();
 822}
 823
 824static int davinci_phy_fixup(struct phy_device *phydev)
 825{
 826        unsigned int control;
 827        /* CRITICAL: Fix for increasing PHY signal drive strength for
 828         * TX lockup issue. On DaVinci EVM, the Intel LXT971 PHY
 829         * signal strength was low causing  TX to fail randomly. The
 830         * fix is to Set bit 11 (Increased MII drive strength) of PHY
 831         * register 26 (Digital Config register) on this phy. */
 832        control = phy_read(phydev, 26);
 833        phy_write(phydev, 26, (control | 0x800));
 834        return 0;
 835}
 836
 837#define HAS_ATA         (IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
 838                         IS_ENABLED(CONFIG_PATA_BK3710))
 839
 840#define HAS_NOR         IS_ENABLED(CONFIG_MTD_PHYSMAP)
 841
 842#define HAS_NAND        IS_ENABLED(CONFIG_MTD_NAND_DAVINCI)
 843
 844#define GPIO_nVBUS_DRV          160
 845
 846static struct gpiod_lookup_table dm644evm_usb_gpio_table = {
 847        .dev_id = "musb-davinci",
 848        .table = {
 849                GPIO_LOOKUP("davinci_gpio", GPIO_nVBUS_DRV, NULL,
 850                            GPIO_ACTIVE_HIGH),
 851                { }
 852        },
 853};
 854
 855static __init void davinci_evm_init(void)
 856{
 857        int ret;
 858        struct clk *aemif_clk;
 859        struct davinci_soc_info *soc_info = &davinci_soc_info;
 860
 861        dm644x_register_clocks();
 862
 863        regulator_register_always_on(0, "fixed-dummy", fixed_supplies_1_8v,
 864                                     ARRAY_SIZE(fixed_supplies_1_8v), 1800000);
 865        regulator_register_always_on(1, "fixed-dummy", fixed_supplies_3_3v,
 866                                     ARRAY_SIZE(fixed_supplies_3_3v), 3300000);
 867
 868        dm644x_init_devices();
 869
 870        ret = dm644x_gpio_register();
 871        if (ret)
 872                pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 873
 874        aemif_clk = clk_get(NULL, "aemif");
 875        clk_prepare_enable(aemif_clk);
 876
 877        if (HAS_ATA) {
 878                if (HAS_NAND || HAS_NOR)
 879                        pr_warn("WARNING: both IDE and Flash are enabled, but they share AEMIF pins\n"
 880                                "\tDisable IDE for NAND/NOR support\n");
 881                davinci_init_ide();
 882        } else if (HAS_NAND || HAS_NOR) {
 883                davinci_cfg_reg(DM644X_HPIEN_DISABLE);
 884                davinci_cfg_reg(DM644X_ATAEN_DISABLE);
 885
 886                /* only one device will be jumpered and detected */
 887                if (HAS_NAND) {
 888                        platform_device_register(&davinci_evm_aemif_device);
 889#ifdef CONFIG_I2C
 890                        evm_leds[7].default_trigger = "nand-disk";
 891#endif
 892                        if (HAS_NOR)
 893                                pr_warn("WARNING: both NAND and NOR flash are enabled; disable one of them.\n");
 894                } else if (HAS_NOR)
 895                        platform_device_register(&davinci_evm_norflash_device);
 896        }
 897
 898        platform_add_devices(davinci_evm_devices,
 899                             ARRAY_SIZE(davinci_evm_devices));
 900#ifdef CONFIG_I2C
 901        nvmem_add_cell_table(&dm644evm_nvmem_cell_table);
 902        nvmem_add_cell_lookups(&dm644evm_nvmem_cell_lookup, 1);
 903        evm_init_i2c();
 904        davinci_setup_mmc(0, &dm6446evm_mmc_config);
 905#endif
 906        dm644x_init_video(&dm644xevm_capture_cfg, &dm644xevm_display_cfg);
 907
 908        davinci_serial_init(dm644x_serial_device);
 909        dm644x_init_asp();
 910
 911        /* irlml6401 switches over 1A, in under 8 msec */
 912        gpiod_add_lookup_table(&dm644evm_usb_gpio_table);
 913        davinci_setup_usb(1000, 8);
 914
 915        if (IS_BUILTIN(CONFIG_PHYLIB)) {
 916                soc_info->emac_pdata->phy_id = DM644X_EVM_PHY_ID;
 917                /* Register the fixup for PHY on DaVinci */
 918                phy_register_fixup_for_uid(LXT971_PHY_ID, LXT971_PHY_MASK,
 919                                                davinci_phy_fixup);
 920        }
 921}
 922
 923MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM")
 924        /* Maintainer: MontaVista Software <source@mvista.com> */
 925        .atag_offset  = 0x100,
 926        .map_io       = davinci_evm_map_io,
 927        .init_irq     = dm644x_init_irq,
 928        .init_time      = dm644x_init_time,
 929        .init_machine = davinci_evm_init,
 930        .init_late      = davinci_init_late,
 931        .dma_zone_size  = SZ_128M,
 932MACHINE_END
 933