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   1 /*
   2  * TI DA850/OMAP-L138 EVM board
   3  *
   4  * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
   5  *
   6  * Derived from: arch/arm/mach-davinci/board-da830-evm.c
   7  * Original Copyrights follow:
   8  *
   9  * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
  10  * the terms of the GNU General Public License version 2. This program
  11  * is licensed "as is" without any warranty of any kind, whether express
  12  * or implied.
  13  */
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/console.h>
  17 #include <linux/i2c.h>
  18 #include <linux/i2c/at24.h>
  19 #include <linux/i2c/pca953x.h>
  20 #include <linux/gpio.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/nand.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <linux/regulator/machine.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30
  31 #include <mach/cp_intc.h>
  32 #include <mach/da8xx.h>
  33 #include <mach/nand.h>
  34 #include <mach/mux.h>
  35
  36 #define DA850_EVM_PHY_MASK              0x1
  37 #define DA850_EVM_MDIO_FREQUENCY        2200000 /* PHY bus frequency */
  38
  39 #define DA850_LCD_PWR_PIN               GPIO_TO_PIN(2, 8)
  40 #define DA850_LCD_BL_PIN                GPIO_TO_PIN(2, 15)
  41
  42 #define DA850_MMCSD_CD_PIN              GPIO_TO_PIN(4, 0)
  43 #define DA850_MMCSD_WP_PIN              GPIO_TO_PIN(4, 1)
  44
  45 #define DA850_MII_MDIO_CLKEN_PIN        GPIO_TO_PIN(2, 6)
  46
  47 static struct mtd_partition da850_evm_norflash_partition[] = {
  48         {
  49                 .name           = "NOR filesystem",
  50                 .offset         = 0,
  51                 .size           = MTDPART_SIZ_FULL,
  52                 .mask_flags     = 0,
  53         },
  54 };
  55
  56 static struct physmap_flash_data da850_evm_norflash_data = {
  57         .width          = 2,
  58         .parts          = da850_evm_norflash_partition,
  59         .nr_parts       = ARRAY_SIZE(da850_evm_norflash_partition),
  60 };
  61
  62 static struct resource da850_evm_norflash_resource[] = {
  63         {
  64                 .start  = DA8XX_AEMIF_CS2_BASE,
  65                 .end    = DA8XX_AEMIF_CS2_BASE + SZ_32M - 1,
  66                 .flags  = IORESOURCE_MEM,
  67         },
  68 };
  69
  70 static struct platform_device da850_evm_norflash_device = {
  71         .name           = "physmap-flash",
  72         .id             = 0,
  73         .dev            = {
  74                 .platform_data  = &da850_evm_norflash_data,
  75         },
  76         .num_resources  = 1,
  77         .resource       = da850_evm_norflash_resource,
  78 };
  79
  80 /* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
  81  * (128K blocks). It may be used instead of the (default) SPI flash
  82  * to boot, using TI's tools to install the secondary boot loader
  83  * (UBL) and U-Boot.
  84  */
  85 struct mtd_partition da850_evm_nandflash_partition[] = {
  86         {
  87                 .name           = "u-boot env",
  88                 .offset         = 0,
  89                 .size           = SZ_128K,
  90                 .mask_flags     = MTD_WRITEABLE,
  91          },
  92         {
  93                 .name           = "UBL",
  94                 .offset         = MTDPART_OFS_APPEND,
  95                 .size           = SZ_128K,
  96                 .mask_flags     = MTD_WRITEABLE,
  97         },
  98         {
  99                 .name           = "u-boot",
 100                 .offset         = MTDPART_OFS_APPEND,
 101                 .size           = 4 * SZ_128K,
 102                 .mask_flags     = MTD_WRITEABLE,
 103         },
 104         {
 105                 .name           = "kernel",
 106                 .offset         = 0x200000,
 107                 .size           = SZ_2M,
 108                 .mask_flags     = 0,
 109         },
 110         {
 111                 .name           = "filesystem",
 112                 .offset         = MTDPART_OFS_APPEND,
 113                 .size           = MTDPART_SIZ_FULL,
 114                 .mask_flags     = 0,
 115         },
 116 };
 117
 118 static struct davinci_nand_pdata da850_evm_nandflash_data = {
 119         .parts          = da850_evm_nandflash_partition,
 120         .nr_parts       = ARRAY_SIZE(da850_evm_nandflash_partition),
 121         .ecc_mode       = NAND_ECC_HW,
 122         .options        = NAND_USE_FLASH_BBT,
 123 };
 124
 125 static struct resource da850_evm_nandflash_resource[] = {
 126         {
 127                 .start  = DA8XX_AEMIF_CS3_BASE,
 128                 .end    = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
 129                 .flags  = IORESOURCE_MEM,
 130         },
 131         {
 132                 .start  = DA8XX_AEMIF_CTL_BASE,
 133                 .end    = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
 134                 .flags  = IORESOURCE_MEM,
 135         },
 136 };
 137
 138 static struct platform_device da850_evm_nandflash_device = {
 139         .name           = "davinci_nand",
 140         .id             = 1,
 141         .dev            = {
 142                 .platform_data  = &da850_evm_nandflash_data,
 143         },
 144         .num_resources  = ARRAY_SIZE(da850_evm_nandflash_resource),
 145         .resource       = da850_evm_nandflash_resource,
 146 };
 147
 148 static struct platform_device *da850_evm_devices[] __initdata = {
 149         &da850_evm_nandflash_device,
 150         &da850_evm_norflash_device,
 151 };
 152
 153 #define DA8XX_AEMIF_CE2CFG_OFFSET       0x10
 154 #define DA8XX_AEMIF_ASIZE_16BIT         0x1
 155
 156 static void __init da850_evm_init_nor(void)
 157 {
 158         void __iomem *aemif_addr;
 159
 160         aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
 161
 162         /* Configure data bus width of CS2 to 16 bit */
 163         writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) |
 164                 DA8XX_AEMIF_ASIZE_16BIT,
 165                 aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET);
 166
 167         iounmap(aemif_addr);
 168 }
 169
 170 static u32 ui_card_detected;
 171
 172 #if defined(CONFIG_MMC_DAVINCI) || \
 173     defined(CONFIG_MMC_DAVINCI_MODULE)
 174 #define HAS_MMC 1
 175 #else
 176 #define HAS_MMC 0
 177 #endif
 178
 179 static void da850_evm_setup_nor_nand(void)
 180 {
 181         int ret = 0;
 182
 183         if (ui_card_detected & !HAS_MMC) {
 184                 ret = da8xx_pinmux_setup(da850_nand_pins);
 185                 if (ret)
 186                         pr_warning("da850_evm_init: nand mux setup failed: "
 187                                         "%d\n", ret);
 188
 189                 ret = da8xx_pinmux_setup(da850_nor_pins);
 190                 if (ret)
 191                         pr_warning("da850_evm_init: nor mux setup failed: %d\n",
 192                                 ret);
 193
 194                 da850_evm_init_nor();
 195
 196                 platform_add_devices(da850_evm_devices,
 197                                         ARRAY_SIZE(da850_evm_devices));
 198         }
 199 }
 200
 201 #ifdef CONFIG_DA850_UI_RMII
 202 static inline void da850_evm_setup_emac_rmii(int rmii_sel)
 203 {
 204         struct davinci_soc_info *soc_info = &davinci_soc_info;
 205
 206         soc_info->emac_pdata->rmii_en = 1;
 207         gpio_set_value(rmii_sel, 0);
 208 }
 209 #else
 210 static inline void da850_evm_setup_emac_rmii(int rmii_sel) { }
 211 #endif
 212
 213 static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
 214                                                 unsigned ngpio, void *c)
 215 {
 216         int sel_a, sel_b, sel_c, ret;
 217
 218         sel_a = gpio + 7;
 219         sel_b = gpio + 6;
 220         sel_c = gpio + 5;
 221
 222         ret = gpio_request(sel_a, "sel_a");
 223         if (ret) {
 224                 pr_warning("Cannot open UI expander pin %d\n", sel_a);
 225                 goto exp_setup_sela_fail;
 226         }
 227
 228         ret = gpio_request(sel_b, "sel_b");
 229         if (ret) {
 230                 pr_warning("Cannot open UI expander pin %d\n", sel_b);
 231                 goto exp_setup_selb_fail;
 232         }
 233
 234         ret = gpio_request(sel_c, "sel_c");
 235         if (ret) {
 236                 pr_warning("Cannot open UI expander pin %d\n", sel_c);
 237                 goto exp_setup_selc_fail;
 238         }
 239
 240         /* deselect all functionalities */
 241         gpio_direction_output(sel_a, 1);
 242         gpio_direction_output(sel_b, 1);
 243         gpio_direction_output(sel_c, 1);
 244
 245         ui_card_detected = 1;
 246         pr_info("DA850/OMAP-L138 EVM UI card detected\n");
 247
 248         da850_evm_setup_nor_nand();
 249
 250         da850_evm_setup_emac_rmii(sel_a);
 251
 252         return 0;
 253
 254 exp_setup_selc_fail:
 255         gpio_free(sel_b);
 256 exp_setup_selb_fail:
 257         gpio_free(sel_a);
 258 exp_setup_sela_fail:
 259         return ret;
 260 }
 261
 262 static int da850_evm_ui_expander_teardown(struct i2c_client *client,
 263                                         unsigned gpio, unsigned ngpio, void *c)
 264 {
 265         /* deselect all functionalities */
 266         gpio_set_value(gpio + 5, 1);
 267         gpio_set_value(gpio + 6, 1);
 268         gpio_set_value(gpio + 7, 1);
 269
 270         gpio_free(gpio + 5);
 271         gpio_free(gpio + 6);
 272         gpio_free(gpio + 7);
 273
 274         return 0;
 275 }
 276
 277 static struct pca953x_platform_data da850_evm_ui_expander_info = {
 278         .gpio_base      = DAVINCI_N_GPIO,
 279         .setup          = da850_evm_ui_expander_setup,
 280         .teardown       = da850_evm_ui_expander_teardown,
 281 };
 282
 283 static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
 284         {
 285                 I2C_BOARD_INFO("tlv320aic3x", 0x18),
 286         },
 287         {
 288                 I2C_BOARD_INFO("tca6416", 0x20),
 289                 .platform_data = &da850_evm_ui_expander_info,
 290         },
 291 };
 292
 293 static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
 294         .bus_freq       = 100,  /* kHz */
 295         .bus_delay      = 0,    /* usec */
 296 };
 297
 298 static struct davinci_uart_config da850_evm_uart_config __initdata = {
 299         .enabled_uarts = 0x7,
 300 };
 301
 302 /* davinci da850 evm audio machine driver */
 303 static u8 da850_iis_serializer_direction[] = {
 304         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
 305         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
 306         INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  TX_MODE,
 307         RX_MODE,        INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
 308 };
 309
 310 static struct snd_platform_data da850_evm_snd_data = {
 311         .tx_dma_offset  = 0x2000,
 312         .rx_dma_offset  = 0x2000,
 313         .op_mode        = DAVINCI_MCASP_IIS_MODE,
 314         .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
 315         .tdm_slots      = 2,
 316         .serial_dir     = da850_iis_serializer_direction,
 317         .eventq_no      = EVENTQ_1,
 318         .version        = MCASP_VERSION_2,
 319         .txnumevt       = 1,
 320         .rxnumevt       = 1,
 321 };
 322
 323 static int da850_evm_mmc_get_ro(int index)
 324 {
 325         return gpio_get_value(DA850_MMCSD_WP_PIN);
 326 }
 327
 328 static int da850_evm_mmc_get_cd(int index)
 329 {
 330         return !gpio_get_value(DA850_MMCSD_CD_PIN);
 331 }
 332
 333 static struct davinci_mmc_config da850_mmc_config = {
 334         .get_ro         = da850_evm_mmc_get_ro,
 335         .get_cd         = da850_evm_mmc_get_cd,
 336         .wires          = 4,
 337         .version        = MMC_CTLR_VERSION_2,
 338 };
 339
 340 static int da850_lcd_hw_init(void)
 341 {
 342         int status;
 343
 344         status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
 345         if (status < 0)
 346                 return status;
 347
 348         status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
 349         if (status < 0) {
 350                 gpio_free(DA850_LCD_BL_PIN);
 351                 return status;
 352         }
 353
 354         gpio_direction_output(DA850_LCD_BL_PIN, 0);
 355         gpio_direction_output(DA850_LCD_PWR_PIN, 0);
 356
 357         /* disable lcd backlight */
 358         gpio_set_value(DA850_LCD_BL_PIN, 0);
 359
 360         /* disable lcd power */
 361         gpio_set_value(DA850_LCD_PWR_PIN, 0);
 362
 363         /* enable lcd power */
 364         gpio_set_value(DA850_LCD_PWR_PIN, 1);
 365
 366         /* enable lcd backlight */
 367         gpio_set_value(DA850_LCD_BL_PIN, 1);
 368
 369         return 0;
 370 }
 371
 372 /* TPS65070 voltage regulator support */
 373
 374 /* 3.3V */
 375 struct regulator_consumer_supply tps65070_dcdc1_consumers[] = {
 376         {
 377                 .supply = "usb0_vdda33",
 378         },
 379         {
 380                 .supply = "usb1_vdda33",
 381         },
 382 };
 383
 384 /* 3.3V or 1.8V */
 385 struct regulator_consumer_supply tps65070_dcdc2_consumers[] = {
 386         {
 387                 .supply = "dvdd3318_a",
 388         },
 389         {
 390                 .supply = "dvdd3318_b",
 391         },
 392         {
 393                 .supply = "dvdd3318_c",
 394         },
 395 };
 396
 397 /* 1.2V */
 398 struct regulator_consumer_supply tps65070_dcdc3_consumers[] = {
 399         {
 400                 .supply = "cvdd",
 401         },
 402 };
 403
 404 /* 1.8V LDO */
 405 struct regulator_consumer_supply tps65070_ldo1_consumers[] = {
 406         {
 407                 .supply = "sata_vddr",
 408         },
 409         {
 410                 .supply = "usb0_vdda18",
 411         },
 412         {
 413                 .supply = "usb1_vdda18",
 414         },
 415         {
 416                 .supply = "ddr_dvdd18",
 417         },
 418 };
 419
 420 /* 1.2V LDO */
 421 struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
 422         {
 423                 .supply = "sata_vdd",
 424         },
 425         {
 426                 .supply = "pll0_vdda",
 427         },
 428         {
 429                 .supply = "pll1_vdda",
 430         },
 431         {
 432                 .supply = "usbs_cvdd",
 433         },
 434         {
 435                 .supply = "vddarnwa1",
 436         },
 437 };
 438
 439 struct regulator_init_data tps65070_regulator_data[] = {
 440         /* dcdc1 */
 441         {
 442                 .constraints = {
 443                         .min_uV = 3150000,
 444                         .max_uV = 3450000,
 445                         .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
 446                                 REGULATOR_CHANGE_STATUS),
 447                         .boot_on = 1,
 448                 },
 449                 .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc1_consumers),
 450                 .consumer_supplies = tps65070_dcdc1_consumers,
 451         },
 452
 453         /* dcdc2 */
 454         {
 455                 .constraints = {
 456                         .min_uV = 1710000,
 457                         .max_uV = 3450000,
 458                         .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
 459                                 REGULATOR_CHANGE_STATUS),
 460                         .boot_on = 1,
 461                 },
 462                 .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers),
 463                 .consumer_supplies = tps65070_dcdc2_consumers,
 464         },
 465
 466         /* dcdc3 */
 467         {
 468                 .constraints = {
 469                         .min_uV = 950000,
 470                         .max_uV = 1320000,
 471                         .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
 472                                 REGULATOR_CHANGE_STATUS),
 473                         .boot_on = 1,
 474                 },
 475                 .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc3_consumers),
 476                 .consumer_supplies = tps65070_dcdc3_consumers,
 477         },
 478
 479         /* ldo1 */
 480         {
 481                 .constraints = {
 482                         .min_uV = 1710000,
 483                         .max_uV = 1890000,
 484                         .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
 485                                 REGULATOR_CHANGE_STATUS),
 486                         .boot_on = 1,
 487                 },
 488                 .num_consumer_supplies = ARRAY_SIZE(tps65070_ldo1_consumers),
 489                 .consumer_supplies = tps65070_ldo1_consumers,
 490         },
 491
 492         /* ldo2 */
 493         {
 494                 .constraints = {
 495                         .min_uV = 1140000,
 496                         .max_uV = 1320000,
 497                         .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
 498                                 REGULATOR_CHANGE_STATUS),
 499                         .boot_on = 1,
 500                 },
 501                 .num_consumer_supplies = ARRAY_SIZE(tps65070_ldo2_consumers),
 502                 .consumer_supplies = tps65070_ldo2_consumers,
 503         },
 504 };
 505
 506 static struct i2c_board_info __initdata da850evm_tps65070_info[] = {
 507         {
 508                 I2C_BOARD_INFO("tps6507x", 0x48),
 509                 .platform_data = &tps65070_regulator_data[0],
 510         },
 511 };
 512
 513 static int __init pmic_tps65070_init(void)
 514 {
 515         return i2c_register_board_info(1, da850evm_tps65070_info,
 516                                         ARRAY_SIZE(da850evm_tps65070_info));
 517 }
 518
 519 static const short da850_evm_lcdc_pins[] = {
 520         DA850_GPIO2_8, DA850_GPIO2_15,
 521         -1
 522 };
 523
 524 static int __init da850_evm_config_emac(void)
 525 {
 526         void __iomem *cfg_chip3_base;
 527         int ret;
 528         u32 val;
 529         struct davinci_soc_info *soc_info = &davinci_soc_info;
 530         u8 rmii_en = soc_info->emac_pdata->rmii_en;
 531
 532         if (!machine_is_davinci_da850_evm())
 533                 return 0;
 534
 535         cfg_chip3_base = DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG);
 536
 537         val = __raw_readl(cfg_chip3_base);
 538
 539         if (rmii_en) {
 540                 val |= BIT(8);
 541                 ret = da8xx_pinmux_setup(da850_rmii_pins);
 542                 pr_info("EMAC: RMII PHY configured, MII PHY will not be"
 543                                                         " functional\n");
 544         } else {
 545                 val &= ~BIT(8);
 546                 ret = da8xx_pinmux_setup(da850_cpgmac_pins);
 547                 pr_info("EMAC: MII PHY configured, RMII PHY will not be"
 548                                                         " functional\n");
 549         }
 550
 551         if (ret)
 552                 pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
 553                                 ret);
 554
 555         /* configure the CFGCHIP3 register for RMII or MII */
 556         __raw_writel(val, cfg_chip3_base);
 557
 558         ret = davinci_cfg_reg(DA850_GPIO2_6);
 559         if (ret)
 560                 pr_warning("da850_evm_init:GPIO(2,6) mux setup "
 561                                                         "failed\n");
 562
 563         ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
 564         if (ret) {
 565                 pr_warning("Cannot open GPIO %d\n",
 566                                         DA850_MII_MDIO_CLKEN_PIN);
 567                 return ret;
 568         }
 569
 570         /* Enable/Disable MII MDIO clock */
 571         gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
 572
 573         soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK;
 574         soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY;
 575
 576         ret = da8xx_register_emac();
 577         if (ret)
 578                 pr_warning("da850_evm_init: emac registration failed: %d\n",
 579                                 ret);
 580
 581         return 0;
 582 }
 583 device_initcall(da850_evm_config_emac);
 584
 585 static __init void da850_evm_init(void)
 586 {
 587         int ret;
 588
 589         ret = pmic_tps65070_init();
 590         if (ret)
 591                 pr_warning("da850_evm_init: TPS65070 PMIC init failed: %d\n",
 592                                 ret);
 593
 594         ret = da8xx_register_edma();
 595         if (ret)
 596                 pr_warning("da850_evm_init: edma registration failed: %d\n",
 597                                 ret);
 598
 599         ret = da8xx_pinmux_setup(da850_i2c0_pins);
 600         if (ret)
 601                 pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
 602                                 ret);
 603
 604         ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
 605         if (ret)
 606                 pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
 607                                 ret);
 608
 609
 610         ret = da8xx_register_watchdog();
 611         if (ret)
 612                 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
 613                                 ret);
 614
 615         if (HAS_MMC) {
 616                 ret = da8xx_pinmux_setup(da850_mmcsd0_pins);
 617                 if (ret)
 618                         pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
 619                                         " %d\n", ret);
 620
 621                 ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
 622                 if (ret)
 623                         pr_warning("da850_evm_init: can not open GPIO %d\n",
 624                                         DA850_MMCSD_CD_PIN);
 625                 gpio_direction_input(DA850_MMCSD_CD_PIN);
 626
 627                 ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
 628                 if (ret)
 629                         pr_warning("da850_evm_init: can not open GPIO %d\n",
 630                                         DA850_MMCSD_WP_PIN);
 631                 gpio_direction_input(DA850_MMCSD_WP_PIN);
 632
 633                 ret = da8xx_register_mmcsd0(&da850_mmc_config);
 634                 if (ret)
 635                         pr_warning("da850_evm_init: mmcsd0 registration failed:"
 636                                         " %d\n", ret);
 637         }
 638
 639         davinci_serial_init(&da850_evm_uart_config);
 640
 641         i2c_register_board_info(1, da850_evm_i2c_devices,
 642                         ARRAY_SIZE(da850_evm_i2c_devices));
 643
 644         /*
 645          * shut down uart 0 and 1; they are not used on the board and
 646          * accessing them causes endless "too much work in irq53" messages
 647          * with arago fs
 648          */
 649         __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
 650         __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
 651
 652         ret = da8xx_pinmux_setup(da850_mcasp_pins);
 653         if (ret)
 654                 pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
 655                                 ret);
 656
 657         da8xx_register_mcasp(0, &da850_evm_snd_data);
 658
 659         ret = da8xx_pinmux_setup(da850_lcdcntl_pins);
 660         if (ret)
 661                 pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
 662                                 ret);
 663
 664         /* Handle board specific muxing for LCD here */
 665         ret = da8xx_pinmux_setup(da850_evm_lcdc_pins);
 666         if (ret)
 667                 pr_warning("da850_evm_init: evm specific lcd mux setup "
 668                                 "failed: %d\n", ret);
 669
 670         ret = da850_lcd_hw_init();
 671         if (ret)
 672                 pr_warning("da850_evm_init: lcd initialization failed: %d\n",
 673                                 ret);
 674
 675         ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
 676         if (ret)
 677                 pr_warning("da850_evm_init: lcdc registration failed: %d\n",
 678                                 ret);
 679
 680         ret = da8xx_register_rtc();
 681         if (ret)
 682                 pr_warning("da850_evm_init: rtc setup failed: %d\n", ret);
 683
 684         ret = da850_register_cpufreq();
 685         if (ret)
 686                 pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
 687                                 ret);
 688 }
 689
 690 #ifdef CONFIG_SERIAL_8250_CONSOLE
 691 static int __init da850_evm_console_init(void)
 692 {
 693         return add_preferred_console("ttyS", 2, "115200");
 694 }
 695 console_initcall(da850_evm_console_init);
 696 #endif
 697
 698 static __init void da850_evm_irq_init(void)
 699 {
 700         struct davinci_soc_info *soc_info = &davinci_soc_info;
 701
 702         cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ,
 703                         soc_info->intc_irq_prios);
 704 }
 705
 706 static void __init da850_evm_map_io(void)
 707 {
 708         da850_init();
 709 }
 710
 711 MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM")
 712         .phys_io        = IO_PHYS,
 713         .io_pg_offst    = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 714         .boot_params    = (DA8XX_DDR_BASE + 0x100),
 715         .map_io         = da850_evm_map_io,
 716         .init_irq       = da850_evm_irq_init,
 717         .timer          = &davinci_timer,
 718         .init_machine   = da850_evm_init,
 719 MACHINE_END