arch/arm/mach-davinci/board-da830-evm.c

   1 /*
   2  * TI DA830/OMAP L137 EVM board
   3  *
   4  * Author: Mark A. Greer <mgreer@mvista.com>
   5  * Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
   6  *
   7  * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
   8  * the terms of the GNU General Public License version 2. This program
   9  * is licensed "as is" without any warranty of any kind, whether express
  10  * or implied.
  11  */
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/console.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/gpio.h>
  17 #include <linux/gpio/machine.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/i2c.h>
  20 #include <linux/platform_data/pcf857x.h>
  21 #include <linux/property.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/spi/spi.h>
  25 #include <linux/spi/flash.h>
  26 #include <linux/platform_data/gpio-davinci.h>
  27 #include <linux/platform_data/mtd-davinci.h>
  28 #include <linux/platform_data/mtd-davinci-aemif.h>
  29 #include <linux/platform_data/spi-davinci.h>
  30 #include <linux/platform_data/usb-davinci.h>
  31 #include <linux/platform_data/ti-aemif.h>
  32 #include <linux/regulator/machine.h>
  33 #include <linux/nvmem-provider.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/da8xx.h>
  41
  42 #include "irqs.h"
  43
  44 #define DA830_EVM_PHY_ID                ""
  45 /*
  46  * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
  47  */
  48 #define ON_BD_USB_DRV   GPIO_TO_PIN(1, 15)
  49 #define ON_BD_USB_OVC   GPIO_TO_PIN(2, 4)
  50
  51 static const short da830_evm_usb11_pins[] = {
  52         DA830_GPIO1_15, DA830_GPIO2_4,
  53         -1
  54 };
  55
  56 static struct gpiod_lookup_table da830_evm_usb_gpio_lookup = {
  57         .dev_id         = "ohci-da8xx",
  58         .table = {
  59                 GPIO_LOOKUP("davinci_gpio", ON_BD_USB_DRV, "vbus", 0),
  60                 GPIO_LOOKUP("davinci_gpio", ON_BD_USB_OVC, "oc", 0),
  61         },
  62 };
  63
  64 static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
  65         /* TPS2065 switch @ 5V */
  66         .potpgt         = (3 + 1) / 2,  /* 3 ms max */
  67 };
  68
  69 static __init void da830_evm_usb_init(void)
  70 {
  71         int ret;
  72
  73         ret = da8xx_register_usb_phy_clocks();
  74         if (ret)
  75                 pr_warn("%s: USB PHY CLK registration failed: %d\n",
  76                         __func__, ret);
  77
  78         ret = da8xx_register_usb_phy();
  79         if (ret)
  80                 pr_warn("%s: USB PHY registration failed: %d\n",
  81                         __func__, ret);
  82
  83         ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
  84         if (ret)
  85                 pr_warn("%s: USB 2.0 PinMux setup failed: %d\n", __func__, ret);
  86         else {
  87                 /*
  88                  * TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
  89                  * with the power on to power good time of 3 ms.
  90                  */
  91                 ret = da8xx_register_usb20(1000, 3);
  92                 if (ret)
  93                         pr_warn("%s: USB 2.0 registration failed: %d\n",
  94                                 __func__, ret);
  95         }
  96
  97         ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
  98         if (ret) {
  99                 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
 100                 return;
 101         }
 102
 103         gpiod_add_lookup_table(&da830_evm_usb_gpio_lookup);
 104
 105         ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
 106         if (ret)
 107                 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
 108 }
 109
 110 static const short da830_evm_mcasp1_pins[] = {
 111         DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
 112         DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
 113         DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
 114         DA830_AXR1_11,
 115         -1
 116 };
 117
 118 static u8 da830_iis_serializer_direction[] = {
 119         RX_MODE,        INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
 120         INACTIVE_MODE,  TX_MODE,        INACTIVE_MODE,  INACTIVE_MODE,
 121         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
 122 };
 123
 124 static struct snd_platform_data da830_evm_snd_data = {
 125         .tx_dma_offset  = 0x2000,
 126         .rx_dma_offset  = 0x2000,
 127         .op_mode        = DAVINCI_MCASP_IIS_MODE,
 128         .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
 129         .tdm_slots      = 2,
 130         .serial_dir     = da830_iis_serializer_direction,
 131         .asp_chan_q     = EVENTQ_0,
 132         .version        = MCASP_VERSION_2,
 133         .txnumevt       = 1,
 134         .rxnumevt       = 1,
 135 };
 136
 137 /*
 138  * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
 139  */
 140 static const short da830_evm_mmc_sd_pins[] = {
 141         DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
 142         DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
 143         DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
 144         DA830_MMCSD_CMD,   DA830_GPIO2_1,     DA830_GPIO2_2,
 145         -1
 146 };
 147
 148 #define DA830_MMCSD_WP_PIN              GPIO_TO_PIN(2, 1)
 149 #define DA830_MMCSD_CD_PIN              GPIO_TO_PIN(2, 2)
 150
 151 static struct gpiod_lookup_table mmc_gpios_table = {
 152         .dev_id = "da830-mmc.0",
 153         .table = {
 154                 /* gpio chip 1 contains gpio range 32-63 */
 155                 GPIO_LOOKUP("davinci_gpio", DA830_MMCSD_CD_PIN, "cd",
 156                             GPIO_ACTIVE_LOW),
 157                 GPIO_LOOKUP("davinci_gpio", DA830_MMCSD_WP_PIN, "wp",
 158                             GPIO_ACTIVE_LOW),
 159         },
 160 };
 161
 162 static struct davinci_mmc_config da830_evm_mmc_config = {
 163         .wires                  = 8,
 164         .max_freq               = 50000000,
 165         .caps                   = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 166 };
 167
 168 static inline void da830_evm_init_mmc(void)
 169 {
 170         int ret;
 171
 172         ret = davinci_cfg_reg_list(da830_evm_mmc_sd_pins);
 173         if (ret) {
 174                 pr_warn("%s: mmc/sd mux setup failed: %d\n", __func__, ret);
 175                 return;
 176         }
 177
 178         gpiod_add_lookup_table(&mmc_gpios_table);
 179
 180         ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
 181         if (ret) {
 182                 pr_warn("%s: mmc/sd registration failed: %d\n", __func__, ret);
 183                 gpiod_remove_lookup_table(&mmc_gpios_table);
 184         }
 185 }
 186
 187 #define HAS_MMC         IS_ENABLED(CONFIG_MMC_DAVINCI)
 188
 189 #ifdef CONFIG_DA830_UI_NAND
 190 static struct mtd_partition da830_evm_nand_partitions[] = {
 191         /* bootloader (U-Boot, etc) in first sector */
 192         [0] = {
 193                 .name           = "bootloader",
 194                 .offset         = 0,
 195                 .size           = SZ_128K,
 196                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 197         },
 198         /* bootloader params in the next sector */
 199         [1] = {
 200                 .name           = "params",
 201                 .offset         = MTDPART_OFS_APPEND,
 202                 .size           = SZ_128K,
 203                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 204         },
 205         /* kernel */
 206         [2] = {
 207                 .name           = "kernel",
 208                 .offset         = MTDPART_OFS_APPEND,
 209                 .size           = SZ_2M,
 210                 .mask_flags     = 0,
 211         },
 212         /* file system */
 213         [3] = {
 214                 .name           = "filesystem",
 215                 .offset         = MTDPART_OFS_APPEND,
 216                 .size           = MTDPART_SIZ_FULL,
 217                 .mask_flags     = 0,
 218         }
 219 };
 220
 221 /* flash bbt decriptors */
 222 static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
 223 static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
 224
 225 static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
 226         .options        = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
 227                           NAND_BBT_WRITE | NAND_BBT_2BIT |
 228                           NAND_BBT_VERSION | NAND_BBT_PERCHIP,
 229         .offs           = 2,
 230         .len            = 4,
 231         .veroffs        = 16,
 232         .maxblocks      = 4,
 233         .pattern        = da830_evm_nand_bbt_pattern
 234 };
 235
 236 static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
 237         .options        = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
 238                           NAND_BBT_WRITE | NAND_BBT_2BIT |
 239                           NAND_BBT_VERSION | NAND_BBT_PERCHIP,
 240         .offs           = 2,
 241         .len            = 4,
 242         .veroffs        = 16,
 243         .maxblocks      = 4,
 244         .pattern        = da830_evm_nand_mirror_pattern
 245 };
 246
 247 static struct davinci_aemif_timing da830_evm_nandflash_timing = {
 248         .wsetup         = 24,
 249         .wstrobe        = 21,
 250         .whold          = 14,
 251         .rsetup         = 19,
 252         .rstrobe        = 50,
 253         .rhold          = 0,
 254         .ta             = 20,
 255 };
 256
 257 static struct davinci_nand_pdata da830_evm_nand_pdata = {
 258         .core_chipsel   = 1,
 259         .parts          = da830_evm_nand_partitions,
 260         .nr_parts       = ARRAY_SIZE(da830_evm_nand_partitions),
 261         .ecc_mode       = NAND_ECC_HW,
 262         .ecc_bits       = 4,
 263         .bbt_options    = NAND_BBT_USE_FLASH,
 264         .bbt_td         = &da830_evm_nand_bbt_main_descr,
 265         .bbt_md         = &da830_evm_nand_bbt_mirror_descr,
 266         .timing         = &da830_evm_nandflash_timing,
 267 };
 268
 269 static struct resource da830_evm_nand_resources[] = {
 270         [0] = {         /* First memory resource is NAND I/O window */
 271                 .start  = DA8XX_AEMIF_CS3_BASE,
 272                 .end    = DA8XX_AEMIF_CS3_BASE + PAGE_SIZE - 1,
 273                 .flags  = IORESOURCE_MEM,
 274         },
 275         [1] = {         /* Second memory resource is AEMIF control registers */
 276                 .start  = DA8XX_AEMIF_CTL_BASE,
 277                 .end    = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
 278                 .flags  = IORESOURCE_MEM,
 279         },
 280 };
 281
 282 static struct platform_device da830_evm_aemif_devices[] = {
 283         {
 284                 .name           = "davinci_nand",
 285                 .id             = 1,
 286                 .dev            = {
 287                         .platform_data  = &da830_evm_nand_pdata,
 288                 },
 289                 .num_resources  = ARRAY_SIZE(da830_evm_nand_resources),
 290                 .resource       = da830_evm_nand_resources,
 291         },
 292 };
 293
 294 static struct resource da830_evm_aemif_resource[] = {
 295         {
 296                 .start  = DA8XX_AEMIF_CTL_BASE,
 297                 .end    = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
 298                 .flags  = IORESOURCE_MEM,
 299         },
 300 };
 301
 302 static struct aemif_abus_data da830_evm_aemif_abus_data[] = {
 303         {
 304                 .cs     = 3,
 305         },
 306 };
 307
 308 static struct aemif_platform_data da830_evm_aemif_pdata = {
 309         .abus_data              = da830_evm_aemif_abus_data,
 310         .num_abus_data          = ARRAY_SIZE(da830_evm_aemif_abus_data),
 311         .sub_devices            = da830_evm_aemif_devices,
 312         .num_sub_devices        = ARRAY_SIZE(da830_evm_aemif_devices),
 313         .cs_offset              = 2,
 314 };
 315
 316 static struct platform_device da830_evm_aemif_device = {
 317         .name           = "ti-aemif",
 318         .id             = -1,
 319         .dev = {
 320                 .platform_data = &da830_evm_aemif_pdata,
 321         },
 322         .resource       = da830_evm_aemif_resource,
 323         .num_resources  = ARRAY_SIZE(da830_evm_aemif_resource),
 324 };
 325
 326 /*
 327  * UI board NAND/NOR flashes only use 8-bit data bus.
 328  */
 329 static const short da830_evm_emif25_pins[] = {
 330         DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
 331         DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
 332         DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
 333         DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
 334         DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
 335         DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
 336         DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
 337         -1
 338 };
 339
 340 static inline void da830_evm_init_nand(int mux_mode)
 341 {
 342         int ret;
 343
 344         if (HAS_MMC) {
 345                 pr_warn("WARNING: both MMC/SD and NAND are enabled, but they share AEMIF pins\n"
 346                         "\tDisable MMC/SD for NAND support\n");
 347                 return;
 348         }
 349
 350         ret = davinci_cfg_reg_list(da830_evm_emif25_pins);
 351         if (ret)
 352                 pr_warn("%s: emif25 mux setup failed: %d\n", __func__, ret);
 353
 354         ret = platform_device_register(&da830_evm_aemif_device);
 355         if (ret)
 356                 pr_warn("%s: AEMIF device not registered\n", __func__);
 357
 358         gpio_direction_output(mux_mode, 1);
 359 }
 360 #else
 361 static inline void da830_evm_init_nand(int mux_mode) { }
 362 #endif
 363
 364 #ifdef CONFIG_DA830_UI_LCD
 365 static inline void da830_evm_init_lcdc(int mux_mode)
 366 {
 367         int ret;
 368
 369         ret = davinci_cfg_reg_list(da830_lcdcntl_pins);
 370         if (ret)
 371                 pr_warn("%s: lcdcntl mux setup failed: %d\n", __func__, ret);
 372
 373         ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
 374         if (ret)
 375                 pr_warn("%s: lcd setup failed: %d\n", __func__, ret);
 376
 377         gpio_direction_output(mux_mode, 0);
 378 }
 379 #else
 380 static inline void da830_evm_init_lcdc(int mux_mode) { }
 381 #endif
 382
 383 static struct nvmem_cell_info da830_evm_nvmem_cells[] = {
 384         {
 385                 .name           = "macaddr",
 386                 .offset         = 0x7f00,
 387                 .bytes          = ETH_ALEN,
 388         }
 389 };
 390
 391 static struct nvmem_cell_table da830_evm_nvmem_cell_table = {
 392         .nvmem_name     = "1-00500",
 393         .cells          = da830_evm_nvmem_cells,
 394         .ncells         = ARRAY_SIZE(da830_evm_nvmem_cells),
 395 };
 396
 397 static struct nvmem_cell_lookup da830_evm_nvmem_cell_lookup = {
 398         .nvmem_name     = "1-00500",
 399         .cell_name      = "macaddr",
 400         .dev_id         = "davinci_emac.1",
 401         .con_id         = "mac-address",
 402 };
 403
 404 static const struct property_entry da830_evm_i2c_eeprom_properties[] = {
 405         PROPERTY_ENTRY_U32("pagesize", 64),
 406         { }
 407 };
 408
 409 static int __init da830_evm_ui_expander_setup(struct i2c_client *client,
 410                 int gpio, unsigned ngpio, void *context)
 411 {
 412         gpio_request(gpio + 6, "UI MUX_MODE");
 413
 414         /* Drive mux mode low to match the default without UI card */
 415         gpio_direction_output(gpio + 6, 0);
 416
 417         da830_evm_init_lcdc(gpio + 6);
 418
 419         da830_evm_init_nand(gpio + 6);
 420
 421         return 0;
 422 }
 423
 424 static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
 425                 unsigned ngpio, void *context)
 426 {
 427         gpio_free(gpio + 6);
 428         return 0;
 429 }
 430
 431 static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = {
 432         .gpio_base      = DAVINCI_N_GPIO,
 433         .setup          = da830_evm_ui_expander_setup,
 434         .teardown       = da830_evm_ui_expander_teardown,
 435 };
 436
 437 static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
 438         {
 439                 I2C_BOARD_INFO("24c256", 0x50),
 440                 .properties = da830_evm_i2c_eeprom_properties,
 441         },
 442         {
 443                 I2C_BOARD_INFO("tlv320aic3x", 0x18),
 444         },
 445         {
 446                 I2C_BOARD_INFO("pcf8574", 0x3f),
 447                 .platform_data  = &da830_evm_ui_expander_info,
 448         },
 449 };
 450
 451 static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
 452         .bus_freq       = 100,  /* kHz */
 453         .bus_delay      = 0,    /* usec */
 454 };
 455
 456 /*
 457  * The following EDMA channels/slots are not being used by drivers (for
 458  * example: Timer, GPIO, UART events etc) on da830/omap-l137 EVM, hence
 459  * they are being reserved for codecs on the DSP side.
 460  */
 461 static const s16 da830_dma_rsv_chans[][2] = {
 462         /* (offset, number) */
 463         { 8,  2},
 464         {12,  2},
 465         {24,  4},
 466         {30,  2},
 467         {-1, -1}
 468 };
 469
 470 static const s16 da830_dma_rsv_slots[][2] = {
 471         /* (offset, number) */
 472         { 8,  2},
 473         {12,  2},
 474         {24,  4},
 475         {30, 26},
 476         {-1, -1}
 477 };
 478
 479 static struct edma_rsv_info da830_edma_rsv[] = {
 480         {
 481                 .rsv_chans      = da830_dma_rsv_chans,
 482                 .rsv_slots      = da830_dma_rsv_slots,
 483         },
 484 };
 485
 486 static struct mtd_partition da830evm_spiflash_part[] = {
 487         [0] = {
 488                 .name = "DSP-UBL",
 489                 .offset = 0,
 490                 .size = SZ_8K,
 491                 .mask_flags = MTD_WRITEABLE,
 492         },
 493         [1] = {
 494                 .name = "ARM-UBL",
 495                 .offset = MTDPART_OFS_APPEND,
 496                 .size = SZ_16K + SZ_8K,
 497                 .mask_flags = MTD_WRITEABLE,
 498         },
 499         [2] = {
 500                 .name = "U-Boot",
 501                 .offset = MTDPART_OFS_APPEND,
 502                 .size = SZ_256K - SZ_32K,
 503                 .mask_flags = MTD_WRITEABLE,
 504         },
 505         [3] = {
 506                 .name = "U-Boot-Environment",
 507                 .offset = MTDPART_OFS_APPEND,
 508                 .size = SZ_16K,
 509                 .mask_flags = 0,
 510         },
 511         [4] = {
 512                 .name = "Kernel",
 513                 .offset = MTDPART_OFS_APPEND,
 514                 .size = MTDPART_SIZ_FULL,
 515                 .mask_flags = 0,
 516         },
 517 };
 518
 519 static struct flash_platform_data da830evm_spiflash_data = {
 520         .name           = "m25p80",
 521         .parts          = da830evm_spiflash_part,
 522         .nr_parts       = ARRAY_SIZE(da830evm_spiflash_part),
 523         .type           = "w25x32",
 524 };
 525
 526 static struct davinci_spi_config da830evm_spiflash_cfg = {
 527         .io_type        = SPI_IO_TYPE_DMA,
 528         .c2tdelay       = 8,
 529         .t2cdelay       = 8,
 530 };
 531
 532 static struct spi_board_info da830evm_spi_info[] = {
 533         {
 534                 .modalias               = "m25p80",
 535                 .platform_data          = &da830evm_spiflash_data,
 536                 .controller_data        = &da830evm_spiflash_cfg,
 537                 .mode                   = SPI_MODE_0,
 538                 .max_speed_hz           = 30000000,
 539                 .bus_num                = 0,
 540                 .chip_select            = 0,
 541         },
 542 };
 543
 544 static __init void da830_evm_init(void)
 545 {
 546         struct davinci_soc_info *soc_info = &davinci_soc_info;
 547         int ret;
 548
 549         da830_register_clocks();
 550
 551         ret = da830_register_gpio();
 552         if (ret)
 553                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 554
 555         ret = da830_register_edma(da830_edma_rsv);
 556         if (ret)
 557                 pr_warn("%s: edma registration failed: %d\n", __func__, ret);
 558
 559         ret = davinci_cfg_reg_list(da830_i2c0_pins);
 560         if (ret)
 561                 pr_warn("%s: i2c0 mux setup failed: %d\n", __func__, ret);
 562
 563         ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
 564         if (ret)
 565                 pr_warn("%s: i2c0 registration failed: %d\n", __func__, ret);
 566
 567         da830_evm_usb_init();
 568
 569         soc_info->emac_pdata->rmii_en = 1;
 570         soc_info->emac_pdata->phy_id = DA830_EVM_PHY_ID;
 571
 572         ret = davinci_cfg_reg_list(da830_cpgmac_pins);
 573         if (ret)
 574                 pr_warn("%s: cpgmac mux setup failed: %d\n", __func__, ret);
 575
 576         ret = da8xx_register_emac();
 577         if (ret)
 578                 pr_warn("%s: emac registration failed: %d\n", __func__, ret);
 579
 580         ret = da8xx_register_watchdog();
 581         if (ret)
 582                 pr_warn("%s: watchdog registration failed: %d\n",
 583                         __func__, ret);
 584
 585         davinci_serial_init(da8xx_serial_device);
 586
 587         nvmem_add_cell_table(&da830_evm_nvmem_cell_table);
 588         nvmem_add_cell_lookups(&da830_evm_nvmem_cell_lookup, 1);
 589
 590         i2c_register_board_info(1, da830_evm_i2c_devices,
 591                         ARRAY_SIZE(da830_evm_i2c_devices));
 592
 593         ret = davinci_cfg_reg_list(da830_evm_mcasp1_pins);
 594         if (ret)
 595                 pr_warn("%s: mcasp1 mux setup failed: %d\n", __func__, ret);
 596
 597         da8xx_register_mcasp(1, &da830_evm_snd_data);
 598
 599         da830_evm_init_mmc();
 600
 601         ret = da8xx_register_rtc();
 602         if (ret)
 603                 pr_warn("%s: rtc setup failed: %d\n", __func__, ret);
 604
 605         ret = spi_register_board_info(da830evm_spi_info,
 606                                       ARRAY_SIZE(da830evm_spi_info));
 607         if (ret)
 608                 pr_warn("%s: spi info registration failed: %d\n",
 609                         __func__, ret);
 610
 611         ret = da8xx_register_spi_bus(0, ARRAY_SIZE(da830evm_spi_info));
 612         if (ret)
 613                 pr_warn("%s: spi 0 registration failed: %d\n", __func__, ret);
 614
 615         regulator_has_full_constraints();
 616 }
 617
 618 #ifdef CONFIG_SERIAL_8250_CONSOLE
 619 static int __init da830_evm_console_init(void)
 620 {
 621         if (!machine_is_davinci_da830_evm())
 622                 return 0;
 623
 624         return add_preferred_console("ttyS", 2, "115200");
 625 }
 626 console_initcall(da830_evm_console_init);
 627 #endif
 628
 629 static void __init da830_evm_map_io(void)
 630 {
 631         da830_init();
 632 }
 633
 634 MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM")
 635         .atag_offset    = 0x100,
 636         .map_io         = da830_evm_map_io,
 637         .init_irq       = da830_init_irq,
 638         .init_time      = da830_init_time,
 639         .init_machine   = da830_evm_init,
 640         .init_late      = davinci_init_late,
 641         .dma_zone_size  = SZ_128M,
 642 MACHINE_END