arch/arm/mach-omap2/board-omap4panda.c

   1 /*
   2  * Board support file for OMAP4430 based PandaBoard.
   3  *
   4  * Copyright (C) 2010 Texas Instruments
   5  *
   6  * Author: David Anders <x0132446@ti.com>
   7  *
   8  * Based on mach-omap2/board-4430sdp.c
   9  *
  10  * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
  11  *
  12  * Based on mach-omap2/board-3430sdp.c
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License version 2 as
  16  * published by the Free Software Foundation.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/clk.h>
  23 #include <linux/io.h>
  24 #include <linux/leds.h>
  25 #include <linux/gpio.h>
  26 #include <linux/usb/otg.h>
  27 #include <linux/i2c/twl.h>
  28 #include <linux/regulator/machine.h>
  29 #include <linux/regulator/fixed.h>
  30 #include <linux/wl12xx.h>
  31
  32 #include <mach/hardware.h>
  33 #include <mach/omap4-common.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <plat/board.h>
  39 #include <plat/common.h>
  40 #include <plat/usb.h>
  41 #include <plat/mmc.h>
  42 #include "timer-gp.h"
  43
  44 #include "hsmmc.h"
  45 #include "control.h"
  46 #include "mux.h"
  47
  48 #define GPIO_HUB_POWER          1
  49 #define GPIO_HUB_NRESET         62
  50 #define GPIO_WIFI_PMENA         43
  51 #define GPIO_WIFI_IRQ           53
  52
  53 /* wl127x BT, FM, GPS connectivity chip */
  54 static int wl1271_gpios[] = {46, -1, -1};
  55 static struct platform_device wl1271_device = {
  56         .name   = "kim",
  57         .id     = -1,
  58         .dev    = {
  59                 .platform_data  = &wl1271_gpios,
  60         },
  61 };
  62
  63 static struct gpio_led gpio_leds[] = {
  64         {
  65                 .name                   = "pandaboard::status1",
  66                 .default_trigger        = "heartbeat",
  67                 .gpio                   = 7,
  68         },
  69         {
  70                 .name                   = "pandaboard::status2",
  71                 .default_trigger        = "mmc0",
  72                 .gpio                   = 8,
  73         },
  74 };
  75
  76 static struct gpio_led_platform_data gpio_led_info = {
  77         .leds           = gpio_leds,
  78         .num_leds       = ARRAY_SIZE(gpio_leds),
  79 };
  80
  81 static struct platform_device leds_gpio = {
  82         .name   = "leds-gpio",
  83         .id     = -1,
  84         .dev    = {
  85                 .platform_data  = &gpio_led_info,
  86         },
  87 };
  88
  89 static struct platform_device *panda_devices[] __initdata = {
  90         &leds_gpio,
  91         &wl1271_device,
  92 };
  93
  94 static void __init omap4_panda_init_early(void)
  95 {
  96         omap2_init_common_infrastructure();
  97         omap2_init_common_devices(NULL, NULL);
  98 }
  99
 100 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 101         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 102         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 103         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 104         .phy_reset  = false,
 105         .reset_gpio_port[0]  = -EINVAL,
 106         .reset_gpio_port[1]  = -EINVAL,
 107         .reset_gpio_port[2]  = -EINVAL
 108 };
 109
 110 static void __init omap4_ehci_init(void)
 111 {
 112         int ret;
 113         struct clk *phy_ref_clk;
 114
 115         /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
 116         phy_ref_clk = clk_get(NULL, "auxclk3_ck");
 117         if (IS_ERR(phy_ref_clk)) {
 118                 pr_err("Cannot request auxclk3\n");
 119                 goto error1;
 120         }
 121         clk_set_rate(phy_ref_clk, 19200000);
 122         clk_enable(phy_ref_clk);
 123
 124         /* disable the power to the usb hub prior to init */
 125         ret = gpio_request(GPIO_HUB_POWER, "hub_power");
 126         if (ret) {
 127                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
 128                 goto error1;
 129         }
 130         gpio_export(GPIO_HUB_POWER, 0);
 131         gpio_direction_output(GPIO_HUB_POWER, 0);
 132         gpio_set_value(GPIO_HUB_POWER, 0);
 133
 134         /* reset phy+hub */
 135         ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
 136         if (ret) {
 137                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
 138                 goto error2;
 139         }
 140         gpio_export(GPIO_HUB_NRESET, 0);
 141         gpio_direction_output(GPIO_HUB_NRESET, 0);
 142         gpio_set_value(GPIO_HUB_NRESET, 0);
 143         gpio_set_value(GPIO_HUB_NRESET, 1);
 144
 145         usb_ehci_init(&ehci_pdata);
 146
 147         /* enable power to hub */
 148         gpio_set_value(GPIO_HUB_POWER, 1);
 149         return;
 150
 151 error2:
 152         gpio_free(GPIO_HUB_POWER);
 153 error1:
 154         pr_err("Unable to initialize EHCI power/reset\n");
 155         return;
 156
 157 }
 158
 159 static struct omap_musb_board_data musb_board_data = {
 160         .interface_type         = MUSB_INTERFACE_UTMI,
 161         .mode                   = MUSB_OTG,
 162         .power                  = 100,
 163 };
 164
 165 static struct twl4030_usb_data omap4_usbphy_data = {
 166         .phy_init       = omap4430_phy_init,
 167         .phy_exit       = omap4430_phy_exit,
 168         .phy_power      = omap4430_phy_power,
 169         .phy_set_clock  = omap4430_phy_set_clk,
 170 };
 171
 172 static struct omap2_hsmmc_info mmc[] = {
 173         {
 174                 .mmc            = 1,
 175                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 176                 .gpio_wp        = -EINVAL,
 177                 .gpio_cd        = -EINVAL,
 178         },
 179         {
 180                 .name           = "wl1271",
 181                 .mmc            = 5,
 182                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
 183                 .gpio_wp        = -EINVAL,
 184                 .gpio_cd        = -EINVAL,
 185                 .ocr_mask       = MMC_VDD_165_195,
 186                 .nonremovable   = true,
 187         },
 188         {}      /* Terminator */
 189 };
 190
 191 static struct regulator_consumer_supply omap4_panda_vmmc_supply[] = {
 192         {
 193                 .supply = "vmmc",
 194                 .dev_name = "omap_hsmmc.0",
 195         },
 196 };
 197
 198 static struct regulator_consumer_supply omap4_panda_vmmc5_supply = {
 199         .supply = "vmmc",
 200         .dev_name = "omap_hsmmc.4",
 201 };
 202
 203 static struct regulator_init_data panda_vmmc5 = {
 204         .constraints = {
 205                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 206         },
 207         .num_consumer_supplies = 1,
 208         .consumer_supplies = &omap4_panda_vmmc5_supply,
 209 };
 210
 211 static struct fixed_voltage_config panda_vwlan = {
 212         .supply_name = "vwl1271",
 213         .microvolts = 1800000, /* 1.8V */
 214         .gpio = GPIO_WIFI_PMENA,
 215         .startup_delay = 70000, /* 70msec */
 216         .enable_high = 1,
 217         .enabled_at_boot = 0,
 218         .init_data = &panda_vmmc5,
 219 };
 220
 221 static struct platform_device omap_vwlan_device = {
 222         .name           = "reg-fixed-voltage",
 223         .id             = 1,
 224         .dev = {
 225                 .platform_data = &panda_vwlan,
 226         },
 227 };
 228
 229 struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
 230         .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
 231         /* PANDA ref clock is 38.4 MHz */
 232         .board_ref_clock = 2,
 233 };
 234
 235 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
 236 {
 237         int ret = 0;
 238         struct platform_device *pdev = container_of(dev,
 239                                 struct platform_device, dev);
 240         struct omap_mmc_platform_data *pdata = dev->platform_data;
 241
 242         if (!pdata) {
 243                 dev_err(dev, "%s: NULL platform data\n", __func__);
 244                 return -EINVAL;
 245         }
 246         /* Setting MMC1 Card detect Irq */
 247         if (pdev->id == 0) {
 248                 ret = twl6030_mmc_card_detect_config();
 249                  if (ret)
 250                         dev_err(dev, "%s: Error card detect config(%d)\n",
 251                                 __func__, ret);
 252                  else
 253                         pdata->slots[0].card_detect = twl6030_mmc_card_detect;
 254         }
 255         return ret;
 256 }
 257
 258 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
 259 {
 260         struct omap_mmc_platform_data *pdata;
 261
 262         /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
 263         if (!dev) {
 264                 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
 265                 return;
 266         }
 267         pdata = dev->platform_data;
 268
 269         pdata->init =   omap4_twl6030_hsmmc_late_init;
 270 }
 271
 272 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
 273 {
 274         struct omap2_hsmmc_info *c;
 275
 276         omap2_hsmmc_init(controllers);
 277         for (c = controllers; c->mmc; c++)
 278                 omap4_twl6030_hsmmc_set_late_init(c->dev);
 279
 280         return 0;
 281 }
 282
 283 static struct regulator_init_data omap4_panda_vaux2 = {
 284         .constraints = {
 285                 .min_uV                 = 1200000,
 286                 .max_uV                 = 2800000,
 287                 .apply_uV               = true,
 288                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 289                                         | REGULATOR_MODE_STANDBY,
 290                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 291                                         | REGULATOR_CHANGE_MODE
 292                                         | REGULATOR_CHANGE_STATUS,
 293         },
 294 };
 295
 296 static struct regulator_init_data omap4_panda_vaux3 = {
 297         .constraints = {
 298                 .min_uV                 = 1000000,
 299                 .max_uV                 = 3000000,
 300                 .apply_uV               = true,
 301                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 302                                         | REGULATOR_MODE_STANDBY,
 303                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 304                                         | REGULATOR_CHANGE_MODE
 305                                         | REGULATOR_CHANGE_STATUS,
 306         },
 307 };
 308
 309 /* VMMC1 for MMC1 card */
 310 static struct regulator_init_data omap4_panda_vmmc = {
 311         .constraints = {
 312                 .min_uV                 = 1200000,
 313                 .max_uV                 = 3000000,
 314                 .apply_uV               = true,
 315                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 316                                         | REGULATOR_MODE_STANDBY,
 317                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 318                                         | REGULATOR_CHANGE_MODE
 319                                         | REGULATOR_CHANGE_STATUS,
 320         },
 321         .num_consumer_supplies  = 1,
 322         .consumer_supplies      = omap4_panda_vmmc_supply,
 323 };
 324
 325 static struct regulator_init_data omap4_panda_vpp = {
 326         .constraints = {
 327                 .min_uV                 = 1800000,
 328                 .max_uV                 = 2500000,
 329                 .apply_uV               = true,
 330                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 331                                         | REGULATOR_MODE_STANDBY,
 332                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 333                                         | REGULATOR_CHANGE_MODE
 334                                         | REGULATOR_CHANGE_STATUS,
 335         },
 336 };
 337
 338 static struct regulator_init_data omap4_panda_vana = {
 339         .constraints = {
 340                 .min_uV                 = 2100000,
 341                 .max_uV                 = 2100000,
 342                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 343                                         | REGULATOR_MODE_STANDBY,
 344                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 345                                         | REGULATOR_CHANGE_STATUS,
 346         },
 347 };
 348
 349 static struct regulator_init_data omap4_panda_vcxio = {
 350         .constraints = {
 351                 .min_uV                 = 1800000,
 352                 .max_uV                 = 1800000,
 353                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 354                                         | REGULATOR_MODE_STANDBY,
 355                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 356                                         | REGULATOR_CHANGE_STATUS,
 357         },
 358 };
 359
 360 static struct regulator_init_data omap4_panda_vdac = {
 361         .constraints = {
 362                 .min_uV                 = 1800000,
 363                 .max_uV                 = 1800000,
 364                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 365                                         | REGULATOR_MODE_STANDBY,
 366                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 367                                         | REGULATOR_CHANGE_STATUS,
 368         },
 369 };
 370
 371 static struct regulator_init_data omap4_panda_vusb = {
 372         .constraints = {
 373                 .min_uV                 = 3300000,
 374                 .max_uV                 = 3300000,
 375                 .apply_uV               = true,
 376                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 377                                         | REGULATOR_MODE_STANDBY,
 378                 .valid_ops_mask  =      REGULATOR_CHANGE_MODE
 379                                         | REGULATOR_CHANGE_STATUS,
 380         },
 381 };
 382
 383 static struct twl4030_platform_data omap4_panda_twldata = {
 384         .irq_base       = TWL6030_IRQ_BASE,
 385         .irq_end        = TWL6030_IRQ_END,
 386
 387         /* Regulators */
 388         .vmmc           = &omap4_panda_vmmc,
 389         .vpp            = &omap4_panda_vpp,
 390         .vana           = &omap4_panda_vana,
 391         .vcxio          = &omap4_panda_vcxio,
 392         .vdac           = &omap4_panda_vdac,
 393         .vusb           = &omap4_panda_vusb,
 394         .vaux2          = &omap4_panda_vaux2,
 395         .vaux3          = &omap4_panda_vaux3,
 396         .usb            = &omap4_usbphy_data,
 397 };
 398
 399 static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = {
 400         {
 401                 I2C_BOARD_INFO("twl6030", 0x48),
 402                 .flags = I2C_CLIENT_WAKE,
 403                 .irq = OMAP44XX_IRQ_SYS_1N,
 404                 .platform_data = &omap4_panda_twldata,
 405         },
 406 };
 407 static int __init omap4_panda_i2c_init(void)
 408 {
 409         /*
 410          * Phoenix Audio IC needs I2C1 to
 411          * start with 400 KHz or less
 412          */
 413         omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo,
 414                         ARRAY_SIZE(omap4_panda_i2c_boardinfo));
 415         omap_register_i2c_bus(2, 400, NULL, 0);
 416         omap_register_i2c_bus(3, 400, NULL, 0);
 417         omap_register_i2c_bus(4, 400, NULL, 0);
 418         return 0;
 419 }
 420
 421 #ifdef CONFIG_OMAP_MUX
 422 static struct omap_board_mux board_mux[] __initdata = {
 423         /* WLAN IRQ - GPIO 53 */
 424         OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
 425         /* WLAN POWER ENABLE - GPIO 43 */
 426         OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
 427         /* WLAN SDIO: MMC5 CMD */
 428         OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 429         /* WLAN SDIO: MMC5 CLK */
 430         OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 431         /* WLAN SDIO: MMC5 DAT[0-3] */
 432         OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 433         OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 434         OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 435         OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 436         { .reg_offset = OMAP_MUX_TERMINATOR },
 437 };
 438
 439 static struct omap_device_pad serial2_pads[] __initdata = {
 440         OMAP_MUX_STATIC("uart2_cts.uart2_cts",
 441                          OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
 442         OMAP_MUX_STATIC("uart2_rts.uart2_rts",
 443                          OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
 444         OMAP_MUX_STATIC("uart2_rx.uart2_rx",
 445                          OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
 446         OMAP_MUX_STATIC("uart2_tx.uart2_tx",
 447                          OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
 448 };
 449
 450 static struct omap_device_pad serial3_pads[] __initdata = {
 451         OMAP_MUX_STATIC("uart3_cts_rctx.uart3_cts_rctx",
 452                          OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
 453         OMAP_MUX_STATIC("uart3_rts_sd.uart3_rts_sd",
 454                          OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
 455         OMAP_MUX_STATIC("uart3_rx_irrx.uart3_rx_irrx",
 456                          OMAP_PIN_INPUT | OMAP_MUX_MODE0),
 457         OMAP_MUX_STATIC("uart3_tx_irtx.uart3_tx_irtx",
 458                          OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
 459 };
 460
 461 static struct omap_device_pad serial4_pads[] __initdata = {
 462         OMAP_MUX_STATIC("uart4_rx.uart4_rx",
 463                          OMAP_PIN_INPUT | OMAP_MUX_MODE0),
 464         OMAP_MUX_STATIC("uart4_tx.uart4_tx",
 465                          OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
 466 };
 467
 468 static struct omap_board_data serial2_data = {
 469         .id             = 1,
 470         .pads           = serial2_pads,
 471         .pads_cnt       = ARRAY_SIZE(serial2_pads),
 472 };
 473
 474 static struct omap_board_data serial3_data = {
 475         .id             = 2,
 476         .pads           = serial3_pads,
 477         .pads_cnt       = ARRAY_SIZE(serial3_pads),
 478 };
 479
 480 static struct omap_board_data serial4_data = {
 481         .id             = 3,
 482         .pads           = serial4_pads,
 483         .pads_cnt       = ARRAY_SIZE(serial4_pads),
 484 };
 485
 486 static inline void board_serial_init(void)
 487 {
 488         struct omap_board_data bdata;
 489         bdata.flags     = 0;
 490         bdata.pads      = NULL;
 491         bdata.pads_cnt  = 0;
 492         bdata.id        = 0;
 493         /* pass dummy data for UART1 */
 494         omap_serial_init_port(&bdata);
 495
 496         omap_serial_init_port(&serial2_data);
 497         omap_serial_init_port(&serial3_data);
 498         omap_serial_init_port(&serial4_data);
 499 }
 500 #else
 501 #define board_mux       NULL
 502
 503 static inline void board_serial_init(void)
 504 {
 505         omap_serial_init();
 506 }
 507 #endif
 508
 509 static void __init omap4_panda_init(void)
 510 {
 511         int package = OMAP_PACKAGE_CBS;
 512
 513         if (omap_rev() == OMAP4430_REV_ES1_0)
 514                 package = OMAP_PACKAGE_CBL;
 515         omap4_mux_init(board_mux, package);
 516
 517         if (wl12xx_set_platform_data(&omap_panda_wlan_data))
 518                 pr_err("error setting wl12xx data\n");
 519
 520         omap4_panda_i2c_init();
 521         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
 522         platform_device_register(&omap_vwlan_device);
 523         board_serial_init();
 524         omap4_twl6030_hsmmc_init(mmc);
 525         omap4_ehci_init();
 526         usb_musb_init(&musb_board_data);
 527 }
 528
 529 static void __init omap4_panda_map_io(void)
 530 {
 531         omap2_set_globals_443x();
 532         omap44xx_map_common_io();
 533 }
 534
 535 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
 536         /* Maintainer: David Anders - Texas Instruments Inc */
 537         .boot_params    = 0x80000100,
 538         .reserve        = omap_reserve,
 539         .map_io         = omap4_panda_map_io,
 540         .init_early     = omap4_panda_init_early,
 541         .init_irq       = gic_init_irq,
 542         .init_machine   = omap4_panda_init,
 543         .timer          = &omap_timer,
 544 MACHINE_END