linux/arch/arm/mach-davinci/board-dm365-evm.c
<<
>>
Prefs
   1/*
   2 * TI DaVinci DM365 EVM board support
   3 *
   4 * Copyright (C) 2009 Texas Instruments Incorporated
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License as
   8 * published by the Free Software Foundation version 2.
   9 *
  10 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  11 * kind, whether express or implied; without even the implied warranty
  12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 */
  15#include <linux/kernel.h>
  16#include <linux/init.h>
  17#include <linux/err.h>
  18#include <linux/i2c.h>
  19#include <linux/io.h>
  20#include <linux/clk.h>
  21#include <linux/platform_data/at24.h>
  22#include <linux/leds.h>
  23#include <linux/mtd/mtd.h>
  24#include <linux/mtd/partitions.h>
  25#include <linux/slab.h>
  26#include <linux/mtd/rawnand.h>
  27#include <linux/input.h>
  28#include <linux/spi/spi.h>
  29#include <linux/spi/eeprom.h>
  30#include <linux/v4l2-dv-timings.h>
  31
  32#include <asm/mach-types.h>
  33#include <asm/mach/arch.h>
  34
  35#include <mach/mux.h>
  36#include <mach/common.h>
  37#include <linux/platform_data/i2c-davinci.h>
  38#include <mach/serial.h>
  39#include <linux/platform_data/mmc-davinci.h>
  40#include <linux/platform_data/mtd-davinci.h>
  41#include <linux/platform_data/keyscan-davinci.h>
  42
  43#include <media/i2c/ths7303.h>
  44#include <media/i2c/tvp514x.h>
  45
  46#include "davinci.h"
  47
  48static inline int have_imager(void)
  49{
  50        /* REVISIT when it's supported, trigger via Kconfig */
  51        return 0;
  52}
  53
  54static inline int have_tvp7002(void)
  55{
  56        /* REVISIT when it's supported, trigger via Kconfig */
  57        return 0;
  58}
  59
  60#define DM365_EVM_PHY_ID                "davinci_mdio-0:01"
  61/*
  62 * A MAX-II CPLD is used for various board control functions.
  63 */
  64#define CPLD_OFFSET(a13a8,a2a1)         (((a13a8) << 10) + ((a2a1) << 3))
  65
  66#define CPLD_VERSION    CPLD_OFFSET(0,0)        /* r/o */
  67#define CPLD_TEST       CPLD_OFFSET(0,1)
  68#define CPLD_LEDS       CPLD_OFFSET(0,2)
  69#define CPLD_MUX        CPLD_OFFSET(0,3)
  70#define CPLD_SWITCH     CPLD_OFFSET(1,0)        /* r/o */
  71#define CPLD_POWER      CPLD_OFFSET(1,1)
  72#define CPLD_VIDEO      CPLD_OFFSET(1,2)
  73#define CPLD_CARDSTAT   CPLD_OFFSET(1,3)        /* r/o */
  74
  75#define CPLD_DILC_OUT   CPLD_OFFSET(2,0)
  76#define CPLD_DILC_IN    CPLD_OFFSET(2,1)        /* r/o */
  77
  78#define CPLD_IMG_DIR0   CPLD_OFFSET(2,2)
  79#define CPLD_IMG_MUX0   CPLD_OFFSET(2,3)
  80#define CPLD_IMG_MUX1   CPLD_OFFSET(3,0)
  81#define CPLD_IMG_DIR1   CPLD_OFFSET(3,1)
  82#define CPLD_IMG_MUX2   CPLD_OFFSET(3,2)
  83#define CPLD_IMG_MUX3   CPLD_OFFSET(3,3)
  84#define CPLD_IMG_DIR2   CPLD_OFFSET(4,0)
  85#define CPLD_IMG_MUX4   CPLD_OFFSET(4,1)
  86#define CPLD_IMG_MUX5   CPLD_OFFSET(4,2)
  87
  88#define CPLD_RESETS     CPLD_OFFSET(4,3)
  89
  90#define CPLD_CCD_DIR1   CPLD_OFFSET(0x3e,0)
  91#define CPLD_CCD_IO1    CPLD_OFFSET(0x3e,1)
  92#define CPLD_CCD_DIR2   CPLD_OFFSET(0x3e,2)
  93#define CPLD_CCD_IO2    CPLD_OFFSET(0x3e,3)
  94#define CPLD_CCD_DIR3   CPLD_OFFSET(0x3f,0)
  95#define CPLD_CCD_IO3    CPLD_OFFSET(0x3f,1)
  96
  97static void __iomem *cpld;
  98
  99
 100/* NOTE:  this is geared for the standard config, with a socketed
 101 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
 102 * swap chips with a different block size, partitioning will
 103 * need to be changed. This NAND chip MT29F16G08FAA is the default
 104 * NAND shipped with the Spectrum Digital DM365 EVM
 105 */
 106#define NAND_BLOCK_SIZE         SZ_128K
 107
 108static struct mtd_partition davinci_nand_partitions[] = {
 109        {
 110                /* UBL (a few copies) plus U-Boot */
 111                .name           = "bootloader",
 112                .offset         = 0,
 113                .size           = 30 * NAND_BLOCK_SIZE,
 114                .mask_flags     = MTD_WRITEABLE, /* force read-only */
 115        }, {
 116                /* U-Boot environment */
 117                .name           = "params",
 118                .offset         = MTDPART_OFS_APPEND,
 119                .size           = 2 * NAND_BLOCK_SIZE,
 120                .mask_flags     = 0,
 121        }, {
 122                .name           = "kernel",
 123                .offset         = MTDPART_OFS_APPEND,
 124                .size           = SZ_4M,
 125                .mask_flags     = 0,
 126        }, {
 127                .name           = "filesystem1",
 128                .offset         = MTDPART_OFS_APPEND,
 129                .size           = SZ_512M,
 130                .mask_flags     = 0,
 131        }, {
 132                .name           = "filesystem2",
 133                .offset         = MTDPART_OFS_APPEND,
 134                .size           = MTDPART_SIZ_FULL,
 135                .mask_flags     = 0,
 136        }
 137        /* two blocks with bad block table (and mirror) at the end */
 138};
 139
 140static struct davinci_nand_pdata davinci_nand_data = {
 141        .mask_chipsel           = BIT(14),
 142        .parts                  = davinci_nand_partitions,
 143        .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
 144        .ecc_mode               = NAND_ECC_HW,
 145        .bbt_options            = NAND_BBT_USE_FLASH,
 146        .ecc_bits               = 4,
 147};
 148
 149static struct resource davinci_nand_resources[] = {
 150        {
 151                .start          = DM365_ASYNC_EMIF_DATA_CE0_BASE,
 152                .end            = DM365_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
 153                .flags          = IORESOURCE_MEM,
 154        }, {
 155                .start          = DM365_ASYNC_EMIF_CONTROL_BASE,
 156                .end            = DM365_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 157                .flags          = IORESOURCE_MEM,
 158        },
 159};
 160
 161static struct platform_device davinci_nand_device = {
 162        .name                   = "davinci_nand",
 163        .id                     = 0,
 164        .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 165        .resource               = davinci_nand_resources,
 166        .dev                    = {
 167                .platform_data  = &davinci_nand_data,
 168        },
 169};
 170
 171static struct at24_platform_data eeprom_info = {
 172        .byte_len       = (256*1024) / 8,
 173        .page_size      = 64,
 174        .flags          = AT24_FLAG_ADDR16,
 175        .setup          = davinci_get_mac_addr,
 176        .context        = (void *)0x7f00,
 177};
 178
 179static struct i2c_board_info i2c_info[] = {
 180        {
 181                I2C_BOARD_INFO("24c256", 0x50),
 182                .platform_data  = &eeprom_info,
 183        },
 184        {
 185                I2C_BOARD_INFO("tlv320aic3x", 0x18),
 186        },
 187};
 188
 189static struct davinci_i2c_platform_data i2c_pdata = {
 190        .bus_freq       = 400   /* kHz */,
 191        .bus_delay      = 0     /* usec */,
 192};
 193
 194static int dm365evm_keyscan_enable(struct device *dev)
 195{
 196        return davinci_cfg_reg(DM365_KEYSCAN);
 197}
 198
 199static unsigned short dm365evm_keymap[] = {
 200        KEY_KP2,
 201        KEY_LEFT,
 202        KEY_EXIT,
 203        KEY_DOWN,
 204        KEY_ENTER,
 205        KEY_UP,
 206        KEY_KP1,
 207        KEY_RIGHT,
 208        KEY_MENU,
 209        KEY_RECORD,
 210        KEY_REWIND,
 211        KEY_KPMINUS,
 212        KEY_STOP,
 213        KEY_FASTFORWARD,
 214        KEY_KPPLUS,
 215        KEY_PLAYPAUSE,
 216        0
 217};
 218
 219static struct davinci_ks_platform_data dm365evm_ks_data = {
 220        .device_enable  = dm365evm_keyscan_enable,
 221        .keymap         = dm365evm_keymap,
 222        .keymapsize     = ARRAY_SIZE(dm365evm_keymap),
 223        .rep            = 1,
 224        /* Scan period = strobe + interval */
 225        .strobe         = 0x5,
 226        .interval       = 0x2,
 227        .matrix_type    = DAVINCI_KEYSCAN_MATRIX_4X4,
 228};
 229
 230static int cpld_mmc_get_cd(int module)
 231{
 232        if (!cpld)
 233                return -ENXIO;
 234
 235        /* low == card present */
 236        return !(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 4 : 0));
 237}
 238
 239static int cpld_mmc_get_ro(int module)
 240{
 241        if (!cpld)
 242                return -ENXIO;
 243
 244        /* high == card's write protect switch active */
 245        return !!(__raw_readb(cpld + CPLD_CARDSTAT) & BIT(module ? 5 : 1));
 246}
 247
 248static struct davinci_mmc_config dm365evm_mmc_config = {
 249        .get_cd         = cpld_mmc_get_cd,
 250        .get_ro         = cpld_mmc_get_ro,
 251        .wires          = 4,
 252        .max_freq       = 50000000,
 253        .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 254};
 255
 256static void dm365evm_emac_configure(void)
 257{
 258        /*
 259         * EMAC pins are multiplexed with GPIO and UART
 260         * Further details are available at the DM365 ARM
 261         * Subsystem Users Guide(sprufg5.pdf) pages 125 - 127
 262         */
 263        davinci_cfg_reg(DM365_EMAC_TX_EN);
 264        davinci_cfg_reg(DM365_EMAC_TX_CLK);
 265        davinci_cfg_reg(DM365_EMAC_COL);
 266        davinci_cfg_reg(DM365_EMAC_TXD3);
 267        davinci_cfg_reg(DM365_EMAC_TXD2);
 268        davinci_cfg_reg(DM365_EMAC_TXD1);
 269        davinci_cfg_reg(DM365_EMAC_TXD0);
 270        davinci_cfg_reg(DM365_EMAC_RXD3);
 271        davinci_cfg_reg(DM365_EMAC_RXD2);
 272        davinci_cfg_reg(DM365_EMAC_RXD1);
 273        davinci_cfg_reg(DM365_EMAC_RXD0);
 274        davinci_cfg_reg(DM365_EMAC_RX_CLK);
 275        davinci_cfg_reg(DM365_EMAC_RX_DV);
 276        davinci_cfg_reg(DM365_EMAC_RX_ER);
 277        davinci_cfg_reg(DM365_EMAC_CRS);
 278        davinci_cfg_reg(DM365_EMAC_MDIO);
 279        davinci_cfg_reg(DM365_EMAC_MDCLK);
 280
 281        /*
 282         * EMAC interrupts are multiplexed with GPIO interrupts
 283         * Details are available at the DM365 ARM
 284         * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134
 285         */
 286        davinci_cfg_reg(DM365_INT_EMAC_RXTHRESH);
 287        davinci_cfg_reg(DM365_INT_EMAC_RXPULSE);
 288        davinci_cfg_reg(DM365_INT_EMAC_TXPULSE);
 289        davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
 290}
 291
 292static void dm365evm_mmc_configure(void)
 293{
 294        /*
 295         * MMC/SD pins are multiplexed with GPIO and EMIF
 296         * Further details are available at the DM365 ARM
 297         * Subsystem Users Guide(sprufg5.pdf) pages 118, 128 - 131
 298         */
 299        davinci_cfg_reg(DM365_SD1_CLK);
 300        davinci_cfg_reg(DM365_SD1_CMD);
 301        davinci_cfg_reg(DM365_SD1_DATA3);
 302        davinci_cfg_reg(DM365_SD1_DATA2);
 303        davinci_cfg_reg(DM365_SD1_DATA1);
 304        davinci_cfg_reg(DM365_SD1_DATA0);
 305}
 306
 307static struct tvp514x_platform_data tvp5146_pdata = {
 308        .clk_polarity = 0,
 309        .hs_polarity = 1,
 310        .vs_polarity = 1
 311};
 312
 313#define TVP514X_STD_ALL        (V4L2_STD_NTSC | V4L2_STD_PAL)
 314/* Inputs available at the TVP5146 */
 315static struct v4l2_input tvp5146_inputs[] = {
 316        {
 317                .index = 0,
 318                .name = "Composite",
 319                .type = V4L2_INPUT_TYPE_CAMERA,
 320                .std = TVP514X_STD_ALL,
 321        },
 322        {
 323                .index = 1,
 324                .name = "S-Video",
 325                .type = V4L2_INPUT_TYPE_CAMERA,
 326                .std = TVP514X_STD_ALL,
 327        },
 328};
 329
 330/*
 331 * this is the route info for connecting each input to decoder
 332 * ouput that goes to vpfe. There is a one to one correspondence
 333 * with tvp5146_inputs
 334 */
 335static struct vpfe_route tvp5146_routes[] = {
 336        {
 337                .input = INPUT_CVBS_VI2B,
 338                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 339        },
 340{
 341                .input = INPUT_SVIDEO_VI2C_VI1C,
 342                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 343        },
 344};
 345
 346static struct vpfe_subdev_info vpfe_sub_devs[] = {
 347        {
 348                .name = "tvp5146",
 349                .grp_id = 0,
 350                .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 351                .inputs = tvp5146_inputs,
 352                .routes = tvp5146_routes,
 353                .can_route = 1,
 354                .ccdc_if_params = {
 355                        .if_type = VPFE_BT656,
 356                        .hdpol = VPFE_PINPOL_POSITIVE,
 357                        .vdpol = VPFE_PINPOL_POSITIVE,
 358                },
 359                .board_info = {
 360                        I2C_BOARD_INFO("tvp5146", 0x5d),
 361                        .platform_data = &tvp5146_pdata,
 362                },
 363        },
 364};
 365
 366static struct vpfe_config vpfe_cfg = {
 367        .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 368        .sub_devs = vpfe_sub_devs,
 369        .i2c_adapter_id = 1,
 370        .card_name = "DM365 EVM",
 371        .ccdc = "ISIF",
 372};
 373
 374/* venc standards timings */
 375static struct vpbe_enc_mode_info dm365evm_enc_std_timing[] = {
 376        {
 377                .name           = "ntsc",
 378                .timings_type   = VPBE_ENC_STD,
 379                .std_id         = V4L2_STD_NTSC,
 380                .interlaced     = 1,
 381                .xres           = 720,
 382                .yres           = 480,
 383                .aspect         = {11, 10},
 384                .fps            = {30000, 1001},
 385                .left_margin    = 0x79,
 386                .upper_margin   = 0x10,
 387        },
 388        {
 389                .name           = "pal",
 390                .timings_type   = VPBE_ENC_STD,
 391                .std_id         = V4L2_STD_PAL,
 392                .interlaced     = 1,
 393                .xres           = 720,
 394                .yres           = 576,
 395                .aspect         = {54, 59},
 396                .fps            = {25, 1},
 397                .left_margin    = 0x7E,
 398                .upper_margin   = 0x16,
 399        },
 400};
 401
 402/* venc dv timings */
 403static struct vpbe_enc_mode_info dm365evm_enc_preset_timing[] = {
 404        {
 405                .name           = "480p59_94",
 406                .timings_type   = VPBE_ENC_DV_TIMINGS,
 407                .dv_timings     = V4L2_DV_BT_CEA_720X480P59_94,
 408                .interlaced     = 0,
 409                .xres           = 720,
 410                .yres           = 480,
 411                .aspect         = {1, 1},
 412                .fps            = {5994, 100},
 413                .left_margin    = 0x8F,
 414                .upper_margin   = 0x2D,
 415        },
 416        {
 417                .name           = "576p50",
 418                .timings_type   = VPBE_ENC_DV_TIMINGS,
 419                .dv_timings     = V4L2_DV_BT_CEA_720X576P50,
 420                .interlaced     = 0,
 421                .xres           = 720,
 422                .yres           = 576,
 423                .aspect         = {1, 1},
 424                .fps            = {50, 1},
 425                .left_margin    = 0x8C,
 426                .upper_margin   = 0x36,
 427        },
 428        {
 429                .name           = "720p60",
 430                .timings_type   = VPBE_ENC_DV_TIMINGS,
 431                .dv_timings     = V4L2_DV_BT_CEA_1280X720P60,
 432                .interlaced     = 0,
 433                .xres           = 1280,
 434                .yres           = 720,
 435                .aspect         = {1, 1},
 436                .fps            = {60, 1},
 437                .left_margin    = 0x117,
 438                .right_margin   = 70,
 439                .upper_margin   = 38,
 440                .lower_margin   = 3,
 441                .hsync_len      = 80,
 442                .vsync_len      = 5,
 443        },
 444        {
 445                .name           = "1080i60",
 446                .timings_type   = VPBE_ENC_DV_TIMINGS,
 447                .dv_timings     = V4L2_DV_BT_CEA_1920X1080I60,
 448                .interlaced     = 1,
 449                .xres           = 1920,
 450                .yres           = 1080,
 451                .aspect         = {1, 1},
 452                .fps            = {30, 1},
 453                .left_margin    = 0xc9,
 454                .right_margin   = 80,
 455                .upper_margin   = 30,
 456                .lower_margin   = 3,
 457                .hsync_len      = 88,
 458                .vsync_len      = 5,
 459        },
 460};
 461
 462#define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 463
 464/*
 465 * The outputs available from VPBE + ecnoders. Keep the
 466 * the order same as that of encoders. First those from venc followed by that
 467 * from encoders. Index in the output refers to index on a particular
 468 * encoder.Driver uses this index to pass it to encoder when it supports more
 469 * than one output. Application uses index of the array to set an output.
 470 */
 471static struct vpbe_output dm365evm_vpbe_outputs[] = {
 472        {
 473                .output         = {
 474                        .index          = 0,
 475                        .name           = "Composite",
 476                        .type           = V4L2_OUTPUT_TYPE_ANALOG,
 477                        .std            = VENC_STD_ALL,
 478                        .capabilities   = V4L2_OUT_CAP_STD,
 479                },
 480                .subdev_name    = DM365_VPBE_VENC_SUBDEV_NAME,
 481                .default_mode   = "ntsc",
 482                .num_modes      = ARRAY_SIZE(dm365evm_enc_std_timing),
 483                .modes          = dm365evm_enc_std_timing,
 484                .if_params      = MEDIA_BUS_FMT_FIXED,
 485        },
 486        {
 487                .output         = {
 488                        .index          = 1,
 489                        .name           = "Component",
 490                        .type           = V4L2_OUTPUT_TYPE_ANALOG,
 491                        .capabilities   = V4L2_OUT_CAP_DV_TIMINGS,
 492                },
 493                .subdev_name    = DM365_VPBE_VENC_SUBDEV_NAME,
 494                .default_mode   = "480p59_94",
 495                .num_modes      = ARRAY_SIZE(dm365evm_enc_preset_timing),
 496                .modes          = dm365evm_enc_preset_timing,
 497                .if_params      = MEDIA_BUS_FMT_FIXED,
 498        },
 499};
 500
 501/*
 502 * Amplifiers on the board
 503 */
 504static struct ths7303_platform_data ths7303_pdata = {
 505        .ch_1 = 3,
 506        .ch_2 = 3,
 507        .ch_3 = 3,
 508};
 509
 510static struct amp_config_info vpbe_amp = {
 511        .module_name    = "ths7303",
 512        .is_i2c         = 1,
 513        .board_info     = {
 514                I2C_BOARD_INFO("ths7303", 0x2c),
 515                .platform_data = &ths7303_pdata,
 516        }
 517};
 518
 519static struct vpbe_config dm365evm_display_cfg = {
 520        .module_name    = "dm365-vpbe-display",
 521        .i2c_adapter_id = 1,
 522        .amp            = &vpbe_amp,
 523        .osd            = {
 524                .module_name    = DM365_VPBE_OSD_SUBDEV_NAME,
 525        },
 526        .venc           = {
 527                .module_name    = DM365_VPBE_VENC_SUBDEV_NAME,
 528        },
 529        .num_outputs    = ARRAY_SIZE(dm365evm_vpbe_outputs),
 530        .outputs        = dm365evm_vpbe_outputs,
 531};
 532
 533static void __init evm_init_i2c(void)
 534{
 535        davinci_init_i2c(&i2c_pdata);
 536        i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
 537}
 538
 539static struct platform_device *dm365_evm_nand_devices[] __initdata = {
 540        &davinci_nand_device,
 541};
 542
 543static inline int have_leds(void)
 544{
 545#ifdef CONFIG_LEDS_CLASS
 546        return 1;
 547#else
 548        return 0;
 549#endif
 550}
 551
 552struct cpld_led {
 553        struct led_classdev     cdev;
 554        u8                      mask;
 555};
 556
 557static const struct {
 558        const char *name;
 559        const char *trigger;
 560} cpld_leds[] = {
 561        { "dm365evm::ds2", },
 562        { "dm365evm::ds3", },
 563        { "dm365evm::ds4", },
 564        { "dm365evm::ds5", },
 565        { "dm365evm::ds6", "nand-disk", },
 566        { "dm365evm::ds7", "mmc1", },
 567        { "dm365evm::ds8", "mmc0", },
 568        { "dm365evm::ds9", "heartbeat", },
 569};
 570
 571static void cpld_led_set(struct led_classdev *cdev, enum led_brightness b)
 572{
 573        struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
 574        u8 reg = __raw_readb(cpld + CPLD_LEDS);
 575
 576        if (b != LED_OFF)
 577                reg &= ~led->mask;
 578        else
 579                reg |= led->mask;
 580        __raw_writeb(reg, cpld + CPLD_LEDS);
 581}
 582
 583static enum led_brightness cpld_led_get(struct led_classdev *cdev)
 584{
 585        struct cpld_led *led = container_of(cdev, struct cpld_led, cdev);
 586        u8 reg = __raw_readb(cpld + CPLD_LEDS);
 587
 588        return (reg & led->mask) ? LED_OFF : LED_FULL;
 589}
 590
 591static int __init cpld_leds_init(void)
 592{
 593        int     i;
 594
 595        if (!have_leds() ||  !cpld)
 596                return 0;
 597
 598        /* setup LEDs */
 599        __raw_writeb(0xff, cpld + CPLD_LEDS);
 600        for (i = 0; i < ARRAY_SIZE(cpld_leds); i++) {
 601                struct cpld_led *led;
 602
 603                led = kzalloc(sizeof(*led), GFP_KERNEL);
 604                if (!led)
 605                        break;
 606
 607                led->cdev.name = cpld_leds[i].name;
 608                led->cdev.brightness_set = cpld_led_set;
 609                led->cdev.brightness_get = cpld_led_get;
 610                led->cdev.default_trigger = cpld_leds[i].trigger;
 611                led->mask = BIT(i);
 612
 613                if (led_classdev_register(NULL, &led->cdev) < 0) {
 614                        kfree(led);
 615                        break;
 616                }
 617        }
 618
 619        return 0;
 620}
 621/* run after subsys_initcall() for LEDs */
 622fs_initcall(cpld_leds_init);
 623
 624
 625static void __init evm_init_cpld(void)
 626{
 627        u8 mux, resets;
 628        const char *label;
 629        struct clk *aemif_clk;
 630
 631        /* Make sure we can configure the CPLD through CS1.  Then
 632         * leave it on for later access to MMC and LED registers.
 633         */
 634        aemif_clk = clk_get(NULL, "aemif");
 635        if (IS_ERR(aemif_clk))
 636                return;
 637        clk_prepare_enable(aemif_clk);
 638
 639        if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
 640                        "cpld") == NULL)
 641                goto fail;
 642        cpld = ioremap(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE);
 643        if (!cpld) {
 644                release_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE,
 645                                SECTION_SIZE);
 646fail:
 647                pr_err("ERROR: can't map CPLD\n");
 648                clk_disable_unprepare(aemif_clk);
 649                return;
 650        }
 651
 652        /* External muxing for some signals */
 653        mux = 0;
 654
 655        /* Read SW5 to set up NAND + keypad _or_ OneNAND (sync read).
 656         * NOTE:  SW4 bus width setting must match!
 657         */
 658        if ((__raw_readb(cpld + CPLD_SWITCH) & BIT(5)) == 0) {
 659                /* external keypad mux */
 660                mux |= BIT(7);
 661
 662                platform_add_devices(dm365_evm_nand_devices,
 663                                ARRAY_SIZE(dm365_evm_nand_devices));
 664        } else {
 665                /* no OneNAND support yet */
 666        }
 667
 668        /* Leave external chips in reset when unused. */
 669        resets = BIT(3) | BIT(2) | BIT(1) | BIT(0);
 670
 671        /* Static video input config with SN74CBT16214 1-of-3 mux:
 672         *  - port b1 == tvp7002 (mux lowbits == 1 or 6)
 673         *  - port b2 == imager (mux lowbits == 2 or 7)
 674         *  - port b3 == tvp5146 (mux lowbits == 5)
 675         *
 676         * Runtime switching could work too, with limitations.
 677         */
 678        if (have_imager()) {
 679                label = "HD imager";
 680                mux |= 2;
 681
 682                /* externally mux MMC1/ENET/AIC33 to imager */
 683                mux |= BIT(6) | BIT(5) | BIT(3);
 684        } else {
 685                struct davinci_soc_info *soc_info = &davinci_soc_info;
 686
 687                /* we can use MMC1 ... */
 688                dm365evm_mmc_configure();
 689                davinci_setup_mmc(1, &dm365evm_mmc_config);
 690
 691                /* ... and ENET ... */
 692                dm365evm_emac_configure();
 693                soc_info->emac_pdata->phy_id = DM365_EVM_PHY_ID;
 694                resets &= ~BIT(3);
 695
 696                /* ... and AIC33 */
 697                resets &= ~BIT(1);
 698
 699                if (have_tvp7002()) {
 700                        mux |= 1;
 701                        resets &= ~BIT(2);
 702                        label = "tvp7002 HD";
 703                } else {
 704                        /* default to tvp5146 */
 705                        mux |= 5;
 706                        resets &= ~BIT(0);
 707                        label = "tvp5146 SD";
 708                }
 709        }
 710        __raw_writeb(mux, cpld + CPLD_MUX);
 711        __raw_writeb(resets, cpld + CPLD_RESETS);
 712        pr_info("EVM: %s video input\n", label);
 713
 714        /* REVISIT export switches: NTSC/PAL (SW5.6), EXTRA1 (SW5.2), etc */
 715}
 716
 717static void __init dm365_evm_map_io(void)
 718{
 719        dm365_init();
 720}
 721
 722static struct spi_eeprom at25640 = {
 723        .byte_len       = SZ_64K / 8,
 724        .name           = "at25640",
 725        .page_size      = 32,
 726        .flags          = EE_ADDR2,
 727};
 728
 729static const struct spi_board_info dm365_evm_spi_info[] __initconst = {
 730        {
 731                .modalias       = "at25",
 732                .platform_data  = &at25640,
 733                .max_speed_hz   = 10 * 1000 * 1000,
 734                .bus_num        = 0,
 735                .chip_select    = 0,
 736                .mode           = SPI_MODE_0,
 737        },
 738};
 739
 740static __init void dm365_evm_init(void)
 741{
 742        int ret;
 743
 744        ret = dm365_gpio_register();
 745        if (ret)
 746                pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 747
 748        evm_init_i2c();
 749        davinci_serial_init(dm365_serial_device);
 750
 751        dm365evm_emac_configure();
 752        dm365evm_mmc_configure();
 753
 754        davinci_setup_mmc(0, &dm365evm_mmc_config);
 755
 756        dm365_init_video(&vpfe_cfg, &dm365evm_display_cfg);
 757
 758        /* maybe setup mmc1/etc ... _after_ mmc0 */
 759        evm_init_cpld();
 760
 761#ifdef CONFIG_SND_DM365_AIC3X_CODEC
 762        dm365_init_asp();
 763#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
 764        dm365_init_vc();
 765#endif
 766        dm365_init_rtc();
 767        dm365_init_ks(&dm365evm_ks_data);
 768
 769        dm365_init_spi0(BIT(0), dm365_evm_spi_info,
 770                        ARRAY_SIZE(dm365_evm_spi_info));
 771}
 772
 773MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM")
 774        .atag_offset    = 0x100,
 775        .map_io         = dm365_evm_map_io,
 776        .init_irq       = davinci_irq_init,
 777        .init_time      = dm365_init_time,
 778        .init_machine   = dm365_evm_init,
 779        .init_late      = davinci_init_late,
 780        .dma_zone_size  = SZ_128M,
 781MACHINE_END
 782
 783