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 <asm/hardware/gic.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <video/omapdss.h>
  38
  39 #include <plat/board.h>
  40 #include "common.h"
  41 #include <plat/usb.h>
  42 #include <plat/mmc.h>
  43 #include <video/omap-panel-dvi.h>
  44
  45 #include "hsmmc.h"
  46 #include "control.h"
  47 #include "mux.h"
  48 #include "common-board-devices.h"
  49
  50 #define GPIO_HUB_POWER          1
  51 #define GPIO_HUB_NRESET         62
  52 #define GPIO_WIFI_PMENA         43
  53 #define GPIO_WIFI_IRQ           53
  54 #define HDMI_GPIO_HPD 60 /* Hot plug pin for HDMI */
  55 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
  56
  57 /* wl127x BT, FM, GPS connectivity chip */
  58 static int wl1271_gpios[] = {46, -1, -1};
  59 static struct platform_device wl1271_device = {
  60         .name   = "kim",
  61         .id     = -1,
  62         .dev    = {
  63                 .platform_data  = &wl1271_gpios,
  64         },
  65 };
  66
  67 static struct gpio_led gpio_leds[] = {
  68         {
  69                 .name                   = "pandaboard::status1",
  70                 .default_trigger        = "heartbeat",
  71                 .gpio                   = 7,
  72         },
  73         {
  74                 .name                   = "pandaboard::status2",
  75                 .default_trigger        = "mmc0",
  76                 .gpio                   = 8,
  77         },
  78 };
  79
  80 static struct gpio_led_platform_data gpio_led_info = {
  81         .leds           = gpio_leds,
  82         .num_leds       = ARRAY_SIZE(gpio_leds),
  83 };
  84
  85 static struct platform_device leds_gpio = {
  86         .name   = "leds-gpio",
  87         .id     = -1,
  88         .dev    = {
  89                 .platform_data  = &gpio_led_info,
  90         },
  91 };
  92
  93 static struct platform_device *panda_devices[] __initdata = {
  94         &leds_gpio,
  95         &wl1271_device,
  96 };
  97
  98 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
  99         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 100         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
 101         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 102         .phy_reset  = false,
 103         .reset_gpio_port[0]  = -EINVAL,
 104         .reset_gpio_port[1]  = -EINVAL,
 105         .reset_gpio_port[2]  = -EINVAL
 106 };
 107
 108 static struct gpio panda_ehci_gpios[] __initdata = {
 109         { GPIO_HUB_POWER,       GPIOF_OUT_INIT_LOW,  "hub_power"  },
 110         { GPIO_HUB_NRESET,      GPIOF_OUT_INIT_LOW,  "hub_nreset" },
 111 };
 112
 113 static void __init omap4_ehci_init(void)
 114 {
 115         int ret;
 116         struct clk *phy_ref_clk;
 117
 118         /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
 119         phy_ref_clk = clk_get(NULL, "auxclk3_ck");
 120         if (IS_ERR(phy_ref_clk)) {
 121                 pr_err("Cannot request auxclk3\n");
 122                 return;
 123         }
 124         clk_set_rate(phy_ref_clk, 19200000);
 125         clk_enable(phy_ref_clk);
 126
 127         /* disable the power to the usb hub prior to init and reset phy+hub */
 128         ret = gpio_request_array(panda_ehci_gpios,
 129                                  ARRAY_SIZE(panda_ehci_gpios));
 130         if (ret) {
 131                 pr_err("Unable to initialize EHCI power/reset\n");
 132                 return;
 133         }
 134
 135         gpio_export(GPIO_HUB_POWER, 0);
 136         gpio_export(GPIO_HUB_NRESET, 0);
 137         gpio_set_value(GPIO_HUB_NRESET, 1);
 138
 139         usbhs_init(&usbhs_bdata);
 140
 141         /* enable power to hub */
 142         gpio_set_value(GPIO_HUB_POWER, 1);
 143 }
 144
 145 static struct omap_musb_board_data musb_board_data = {
 146         .interface_type         = MUSB_INTERFACE_UTMI,
 147         .mode                   = MUSB_OTG,
 148         .power                  = 100,
 149 };
 150
 151 static struct omap2_hsmmc_info mmc[] = {
 152         {
 153                 .mmc            = 1,
 154                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 155                 .gpio_wp        = -EINVAL,
 156                 .gpio_cd        = -EINVAL,
 157         },
 158         {
 159                 .name           = "wl1271",
 160                 .mmc            = 5,
 161                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
 162                 .gpio_wp        = -EINVAL,
 163                 .gpio_cd        = -EINVAL,
 164                 .ocr_mask       = MMC_VDD_165_195,
 165                 .nonremovable   = true,
 166         },
 167         {}      /* Terminator */
 168 };
 169
 170 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
 171         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
 172 };
 173
 174 static struct regulator_init_data panda_vmmc5 = {
 175         .constraints = {
 176                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 177         },
 178         .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
 179         .consumer_supplies = omap4_panda_vmmc5_supply,
 180 };
 181
 182 static struct fixed_voltage_config panda_vwlan = {
 183         .supply_name = "vwl1271",
 184         .microvolts = 1800000, /* 1.8V */
 185         .gpio = GPIO_WIFI_PMENA,
 186         .startup_delay = 70000, /* 70msec */
 187         .enable_high = 1,
 188         .enabled_at_boot = 0,
 189         .init_data = &panda_vmmc5,
 190 };
 191
 192 static struct platform_device omap_vwlan_device = {
 193         .name           = "reg-fixed-voltage",
 194         .id             = 1,
 195         .dev = {
 196                 .platform_data = &panda_vwlan,
 197         },
 198 };
 199
 200 struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
 201         .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
 202         /* PANDA ref clock is 38.4 MHz */
 203         .board_ref_clock = 2,
 204 };
 205
 206 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
 207 {
 208         int ret = 0;
 209         struct platform_device *pdev = container_of(dev,
 210                                 struct platform_device, dev);
 211         struct omap_mmc_platform_data *pdata = dev->platform_data;
 212
 213         if (!pdata) {
 214                 dev_err(dev, "%s: NULL platform data\n", __func__);
 215                 return -EINVAL;
 216         }
 217         /* Setting MMC1 Card detect Irq */
 218         if (pdev->id == 0) {
 219                 ret = twl6030_mmc_card_detect_config();
 220                  if (ret)
 221                         dev_err(dev, "%s: Error card detect config(%d)\n",
 222                                 __func__, ret);
 223                  else
 224                         pdata->slots[0].card_detect = twl6030_mmc_card_detect;
 225         }
 226         return ret;
 227 }
 228
 229 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
 230 {
 231         struct omap_mmc_platform_data *pdata;
 232
 233         /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
 234         if (!dev) {
 235                 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
 236                 return;
 237         }
 238         pdata = dev->platform_data;
 239
 240         pdata->init =   omap4_twl6030_hsmmc_late_init;
 241 }
 242
 243 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
 244 {
 245         struct omap2_hsmmc_info *c;
 246
 247         omap2_hsmmc_init(controllers);
 248         for (c = controllers; c->mmc; c++)
 249                 omap4_twl6030_hsmmc_set_late_init(c->dev);
 250
 251         return 0;
 252 }
 253
 254 /* Panda board uses the common PMIC configuration */
 255 static struct twl4030_platform_data omap4_panda_twldata;
 256
 257 /*
 258  * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
 259  * is connected as I2C slave device, and can be accessed at address 0x50
 260  */
 261 static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
 262         {
 263                 I2C_BOARD_INFO("eeprom", 0x50),
 264         },
 265 };
 266
 267 static int __init omap4_panda_i2c_init(void)
 268 {
 269         omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
 270                         TWL_COMMON_REGULATOR_VDAC |
 271                         TWL_COMMON_REGULATOR_VAUX2 |
 272                         TWL_COMMON_REGULATOR_VAUX3 |
 273                         TWL_COMMON_REGULATOR_VMMC |
 274                         TWL_COMMON_REGULATOR_VPP |
 275                         TWL_COMMON_REGULATOR_VANA |
 276                         TWL_COMMON_REGULATOR_VCXIO |
 277                         TWL_COMMON_REGULATOR_VUSB |
 278                         TWL_COMMON_REGULATOR_CLK32KG);
 279         omap4_pmic_init("twl6030", &omap4_panda_twldata);
 280         omap_register_i2c_bus(2, 400, NULL, 0);
 281         /*
 282          * Bus 3 is attached to the DVI port where devices like the pico DLP
 283          * projector don't work reliably with 400kHz
 284          */
 285         omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
 286                                         ARRAY_SIZE(panda_i2c_eeprom));
 287         omap_register_i2c_bus(4, 400, NULL, 0);
 288         return 0;
 289 }
 290
 291 #ifdef CONFIG_OMAP_MUX
 292 static struct omap_board_mux board_mux[] __initdata = {
 293         /* WLAN IRQ - GPIO 53 */
 294         OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
 295         /* WLAN POWER ENABLE - GPIO 43 */
 296         OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
 297         /* WLAN SDIO: MMC5 CMD */
 298         OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 299         /* WLAN SDIO: MMC5 CLK */
 300         OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 301         /* WLAN SDIO: MMC5 DAT[0-3] */
 302         OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 303         OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 304         OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 305         OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
 306         /* gpio 0 - TFP410 PD */
 307         OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
 308         /* dispc2_data23 */
 309         OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 310         /* dispc2_data22 */
 311         OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 312         /* dispc2_data21 */
 313         OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 314         /* dispc2_data20 */
 315         OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 316         /* dispc2_data19 */
 317         OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 318         /* dispc2_data18 */
 319         OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 320         /* dispc2_data15 */
 321         OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 322         /* dispc2_data14 */
 323         OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 324         /* dispc2_data13 */
 325         OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 326         /* dispc2_data12 */
 327         OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 328         /* dispc2_data11 */
 329         OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 330         /* dispc2_data10 */
 331         OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 332         /* dispc2_data9 */
 333         OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 334         /* dispc2_data16 */
 335         OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 336         /* dispc2_data17 */
 337         OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 338         /* dispc2_hsync */
 339         OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 340         /* dispc2_pclk */
 341         OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 342         /* dispc2_vsync */
 343         OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 344         /* dispc2_de */
 345         OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 346         /* dispc2_data8 */
 347         OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 348         /* dispc2_data7 */
 349         OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 350         /* dispc2_data6 */
 351         OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 352         /* dispc2_data5 */
 353         OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 354         /* dispc2_data4 */
 355         OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 356         /* dispc2_data3 */
 357         OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 358         /* dispc2_data2 */
 359         OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 360         /* dispc2_data1 */
 361         OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 362         /* dispc2_data0 */
 363         OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
 364         { .reg_offset = OMAP_MUX_TERMINATOR },
 365 };
 366
 367 #else
 368 #define board_mux       NULL
 369 #endif
 370
 371 /* Display DVI */
 372 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO        0
 373
 374 static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
 375 {
 376         gpio_set_value(dssdev->reset_gpio, 1);
 377         return 0;
 378 }
 379
 380 static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
 381 {
 382         gpio_set_value(dssdev->reset_gpio, 0);
 383 }
 384
 385 /* Using generic display panel */
 386 static struct panel_dvi_platform_data omap4_dvi_panel = {
 387         .platform_enable        = omap4_panda_enable_dvi,
 388         .platform_disable       = omap4_panda_disable_dvi,
 389         .i2c_bus_num = 3,
 390 };
 391
 392 struct omap_dss_device omap4_panda_dvi_device = {
 393         .type                   = OMAP_DISPLAY_TYPE_DPI,
 394         .name                   = "dvi",
 395         .driver_name            = "dvi",
 396         .data                   = &omap4_dvi_panel,
 397         .phy.dpi.data_lines     = 24,
 398         .reset_gpio             = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
 399         .channel                = OMAP_DSS_CHANNEL_LCD2,
 400 };
 401
 402 int __init omap4_panda_dvi_init(void)
 403 {
 404         int r;
 405
 406         /* Requesting TFP410 DVI GPIO and disabling it, at bootup */
 407         r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
 408                                 GPIOF_OUT_INIT_LOW, "DVI PD");
 409         if (r)
 410                 pr_err("Failed to get DVI powerdown GPIO\n");
 411
 412         return r;
 413 }
 414
 415 static struct gpio panda_hdmi_gpios[] = {
 416         { HDMI_GPIO_HPD,        GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd"   },
 417         { HDMI_GPIO_LS_OE,      GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
 418 };
 419
 420 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
 421 {
 422         int status;
 423
 424         status = gpio_request_array(panda_hdmi_gpios,
 425                                     ARRAY_SIZE(panda_hdmi_gpios));
 426         if (status)
 427                 pr_err("Cannot request HDMI GPIOs\n");
 428
 429         return status;
 430 }
 431
 432 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
 433 {
 434         gpio_free(HDMI_GPIO_LS_OE);
 435         gpio_free(HDMI_GPIO_HPD);
 436 }
 437
 438 static struct omap_dss_device  omap4_panda_hdmi_device = {
 439         .name = "hdmi",
 440         .driver_name = "hdmi_panel",
 441         .type = OMAP_DISPLAY_TYPE_HDMI,
 442         .platform_enable = omap4_panda_panel_enable_hdmi,
 443         .platform_disable = omap4_panda_panel_disable_hdmi,
 444         .channel = OMAP_DSS_CHANNEL_DIGIT,
 445 };
 446
 447 static struct omap_dss_device *omap4_panda_dss_devices[] = {
 448         &omap4_panda_dvi_device,
 449         &omap4_panda_hdmi_device,
 450 };
 451
 452 static struct omap_dss_board_info omap4_panda_dss_data = {
 453         .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
 454         .devices        = omap4_panda_dss_devices,
 455         .default_device = &omap4_panda_dvi_device,
 456 };
 457
 458 void omap4_panda_display_init(void)
 459 {
 460         int r;
 461
 462         r = omap4_panda_dvi_init();
 463         if (r)
 464                 pr_err("error initializing panda DVI\n");
 465
 466         omap_display_init(&omap4_panda_dss_data);
 467
 468         /*
 469          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
 470          * later have external pull up on the HDMI I2C lines
 471          */
 472         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
 473                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
 474         else
 475                 omap_hdmi_init(0);
 476 }
 477
 478 static void __init omap4_panda_init(void)
 479 {
 480         int package = OMAP_PACKAGE_CBS;
 481
 482         if (omap_rev() == OMAP4430_REV_ES1_0)
 483                 package = OMAP_PACKAGE_CBL;
 484         omap4_mux_init(board_mux, NULL, package);
 485
 486         if (wl12xx_set_platform_data(&omap_panda_wlan_data))
 487                 pr_err("error setting wl12xx data\n");
 488
 489         omap4_panda_i2c_init();
 490         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
 491         platform_device_register(&omap_vwlan_device);
 492         omap_serial_init();
 493         omap_sdrc_init(NULL, NULL);
 494         omap4_twl6030_hsmmc_init(mmc);
 495         omap4_ehci_init();
 496         usb_musb_init(&musb_board_data);
 497         omap4_panda_display_init();
 498 }
 499
 500 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
 501         /* Maintainer: David Anders - Texas Instruments Inc */
 502         .atag_offset    = 0x100,
 503         .reserve        = omap_reserve,
 504         .map_io         = omap4_map_io,
 505         .init_early     = omap4430_init_early,
 506         .init_irq       = gic_init_irq,
 507         .handle_irq     = gic_handle_irq,
 508         .init_machine   = omap4_panda_init,
 509         .timer          = &omap4_timer,
 510         .restart        = omap_prcm_restart,
 511 MACHINE_END