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