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
  30 #include <mach/hardware.h>
  31 #include <mach/omap4-common.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <plat/board.h>
  37 #include <plat/common.h>
  38 #include <plat/usb.h>
  39 #include <plat/mmc.h>
  40 #include "timer-gp.h"
  41
  42 #include "hsmmc.h"
  43 #include "control.h"
  44 #include "mux.h"
  45
  46 #define GPIO_HUB_POWER          1
  47 #define GPIO_HUB_NRESET         62
  48
  49 static struct gpio_led gpio_leds[] = {
  50         {
  51                 .name                   = "pandaboard::status1",
  52                 .default_trigger        = "heartbeat",
  53                 .gpio                   = 7,
  54         },
  55         {
  56                 .name                   = "pandaboard::status2",
  57                 .default_trigger        = "mmc0",
  58                 .gpio                   = 8,
  59         },
  60 };
  61
  62 static struct gpio_led_platform_data gpio_led_info = {
  63         .leds           = gpio_leds,
  64         .num_leds       = ARRAY_SIZE(gpio_leds),
  65 };
  66
  67 static struct platform_device leds_gpio = {
  68         .name   = "leds-gpio",
  69         .id     = -1,
  70         .dev    = {
  71                 .platform_data  = &gpio_led_info,
  72         },
  73 };
  74
  75 static struct platform_device *panda_devices[] __initdata = {
  76         &leds_gpio,
  77 };
  78
  79 static void __init omap4_panda_init_irq(void)
  80 {
  81         omap2_init_common_infrastructure();
  82         omap2_init_common_devices(NULL, NULL);
  83         gic_init_irq();
  84 }
  85
  86 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
  87         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
  88         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
  89         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
  90         .phy_reset  = false,
  91         .reset_gpio_port[0]  = -EINVAL,
  92         .reset_gpio_port[1]  = -EINVAL,
  93         .reset_gpio_port[2]  = -EINVAL
  94 };
  95
  96 static void __init omap4_ehci_init(void)
  97 {
  98         int ret;
  99         struct clk *phy_ref_clk;
 100
 101         /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
 102         phy_ref_clk = clk_get(NULL, "auxclk3_ck");
 103         if (IS_ERR(phy_ref_clk)) {
 104                 pr_err("Cannot request auxclk3\n");
 105                 goto error1;
 106         }
 107         clk_set_rate(phy_ref_clk, 19200000);
 108         clk_enable(phy_ref_clk);
 109
 110         /* disable the power to the usb hub prior to init */
 111         ret = gpio_request(GPIO_HUB_POWER, "hub_power");
 112         if (ret) {
 113                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
 114                 goto error1;
 115         }
 116         gpio_export(GPIO_HUB_POWER, 0);
 117         gpio_direction_output(GPIO_HUB_POWER, 0);
 118         gpio_set_value(GPIO_HUB_POWER, 0);
 119
 120         /* reset phy+hub */
 121         ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
 122         if (ret) {
 123                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
 124                 goto error2;
 125         }
 126         gpio_export(GPIO_HUB_NRESET, 0);
 127         gpio_direction_output(GPIO_HUB_NRESET, 0);
 128         gpio_set_value(GPIO_HUB_NRESET, 0);
 129         gpio_set_value(GPIO_HUB_NRESET, 1);
 130
 131         usb_ehci_init(&ehci_pdata);
 132
 133         /* enable power to hub */
 134         gpio_set_value(GPIO_HUB_POWER, 1);
 135         return;
 136
 137 error2:
 138         gpio_free(GPIO_HUB_POWER);
 139 error1:
 140         pr_err("Unable to initialize EHCI power/reset\n");
 141         return;
 142
 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 twl4030_usb_data omap4_usbphy_data = {
 152         .phy_init       = omap4430_phy_init,
 153         .phy_exit       = omap4430_phy_exit,
 154         .phy_power      = omap4430_phy_power,
 155         .phy_set_clock  = omap4430_phy_set_clk,
 156 };
 157
 158 static struct omap2_hsmmc_info mmc[] = {
 159         {
 160                 .mmc            = 1,
 161                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 162                 .gpio_wp        = -EINVAL,
 163                 .gpio_cd        = -EINVAL,
 164         },
 165         {}      /* Terminator */
 166 };
 167
 168 static struct regulator_consumer_supply omap4_panda_vmmc_supply[] = {
 169         {
 170                 .supply = "vmmc",
 171                 .dev_name = "mmci-omap-hs.0",
 172         },
 173 };
 174
 175 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
 176 {
 177         int ret = 0;
 178         struct platform_device *pdev = container_of(dev,
 179                                 struct platform_device, dev);
 180         struct omap_mmc_platform_data *pdata = dev->platform_data;
 181
 182         if (!pdata) {
 183                 dev_err(dev, "%s: NULL platform data\n", __func__);
 184                 return -EINVAL;
 185         }
 186         /* Setting MMC1 Card detect Irq */
 187         if (pdev->id == 0) {
 188                 ret = twl6030_mmc_card_detect_config();
 189                  if (ret)
 190                         dev_err(dev, "%s: Error card detect config(%d)\n",
 191                                 __func__, ret);
 192                  else
 193                         pdata->slots[0].card_detect = twl6030_mmc_card_detect;
 194         }
 195         return ret;
 196 }
 197
 198 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
 199 {
 200         struct omap_mmc_platform_data *pdata;
 201
 202         /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
 203         if (!dev) {
 204                 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
 205                 return;
 206         }
 207         pdata = dev->platform_data;
 208
 209         pdata->init =   omap4_twl6030_hsmmc_late_init;
 210 }
 211
 212 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
 213 {
 214         struct omap2_hsmmc_info *c;
 215
 216         omap2_hsmmc_init(controllers);
 217         for (c = controllers; c->mmc; c++)
 218                 omap4_twl6030_hsmmc_set_late_init(c->dev);
 219
 220         return 0;
 221 }
 222
 223 static struct regulator_init_data omap4_panda_vaux1 = {
 224         .constraints = {
 225                 .min_uV                 = 1000000,
 226                 .max_uV                 = 3000000,
 227                 .apply_uV               = true,
 228                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 229                                         | REGULATOR_MODE_STANDBY,
 230                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 231                                         | REGULATOR_CHANGE_MODE
 232                                         | REGULATOR_CHANGE_STATUS,
 233         },
 234 };
 235
 236 static struct regulator_init_data omap4_panda_vaux2 = {
 237         .constraints = {
 238                 .min_uV                 = 1200000,
 239                 .max_uV                 = 2800000,
 240                 .apply_uV               = true,
 241                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 242                                         | REGULATOR_MODE_STANDBY,
 243                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 244                                         | REGULATOR_CHANGE_MODE
 245                                         | REGULATOR_CHANGE_STATUS,
 246         },
 247 };
 248
 249 static struct regulator_init_data omap4_panda_vaux3 = {
 250         .constraints = {
 251                 .min_uV                 = 1000000,
 252                 .max_uV                 = 3000000,
 253                 .apply_uV               = true,
 254                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 255                                         | REGULATOR_MODE_STANDBY,
 256                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 257                                         | REGULATOR_CHANGE_MODE
 258                                         | REGULATOR_CHANGE_STATUS,
 259         },
 260 };
 261
 262 /* VMMC1 for MMC1 card */
 263 static struct regulator_init_data omap4_panda_vmmc = {
 264         .constraints = {
 265                 .min_uV                 = 1200000,
 266                 .max_uV                 = 3000000,
 267                 .apply_uV               = true,
 268                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 269                                         | REGULATOR_MODE_STANDBY,
 270                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 271                                         | REGULATOR_CHANGE_MODE
 272                                         | REGULATOR_CHANGE_STATUS,
 273         },
 274         .num_consumer_supplies  = 1,
 275         .consumer_supplies      = omap4_panda_vmmc_supply,
 276 };
 277
 278 static struct regulator_init_data omap4_panda_vpp = {
 279         .constraints = {
 280                 .min_uV                 = 1800000,
 281                 .max_uV                 = 2500000,
 282                 .apply_uV               = true,
 283                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 284                                         | REGULATOR_MODE_STANDBY,
 285                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 286                                         | REGULATOR_CHANGE_MODE
 287                                         | REGULATOR_CHANGE_STATUS,
 288         },
 289 };
 290
 291 static struct regulator_init_data omap4_panda_vusim = {
 292         .constraints = {
 293                 .min_uV                 = 1200000,
 294                 .max_uV                 = 2900000,
 295                 .apply_uV               = true,
 296                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 297                                         | REGULATOR_MODE_STANDBY,
 298                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 299                                         | REGULATOR_CHANGE_MODE
 300                                         | REGULATOR_CHANGE_STATUS,
 301         },
 302 };
 303
 304 static struct regulator_init_data omap4_panda_vana = {
 305         .constraints = {
 306                 .min_uV                 = 2100000,
 307                 .max_uV                 = 2100000,
 308                 .apply_uV               = true,
 309                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 310                                         | REGULATOR_MODE_STANDBY,
 311                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 312                                         | REGULATOR_CHANGE_STATUS,
 313         },
 314 };
 315
 316 static struct regulator_init_data omap4_panda_vcxio = {
 317         .constraints = {
 318                 .min_uV                 = 1800000,
 319                 .max_uV                 = 1800000,
 320                 .apply_uV               = true,
 321                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 322                                         | REGULATOR_MODE_STANDBY,
 323                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 324                                         | REGULATOR_CHANGE_STATUS,
 325         },
 326 };
 327
 328 static struct regulator_init_data omap4_panda_vdac = {
 329         .constraints = {
 330                 .min_uV                 = 1800000,
 331                 .max_uV                 = 1800000,
 332                 .apply_uV               = true,
 333                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 334                                         | REGULATOR_MODE_STANDBY,
 335                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 336                                         | REGULATOR_CHANGE_STATUS,
 337         },
 338 };
 339
 340 static struct regulator_init_data omap4_panda_vusb = {
 341         .constraints = {
 342                 .min_uV                 = 3300000,
 343                 .max_uV                 = 3300000,
 344                 .apply_uV               = true,
 345                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 346                                         | REGULATOR_MODE_STANDBY,
 347                 .valid_ops_mask  =      REGULATOR_CHANGE_MODE
 348                                         | REGULATOR_CHANGE_STATUS,
 349         },
 350 };
 351
 352 static struct twl4030_platform_data omap4_panda_twldata = {
 353         .irq_base       = TWL6030_IRQ_BASE,
 354         .irq_end        = TWL6030_IRQ_END,
 355
 356         /* Regulators */
 357         .vmmc           = &omap4_panda_vmmc,
 358         .vpp            = &omap4_panda_vpp,
 359         .vusim          = &omap4_panda_vusim,
 360         .vana           = &omap4_panda_vana,
 361         .vcxio          = &omap4_panda_vcxio,
 362         .vdac           = &omap4_panda_vdac,
 363         .vusb           = &omap4_panda_vusb,
 364         .vaux1          = &omap4_panda_vaux1,
 365         .vaux2          = &omap4_panda_vaux2,
 366         .vaux3          = &omap4_panda_vaux3,
 367         .usb            = &omap4_usbphy_data,
 368 };
 369
 370 static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = {
 371         {
 372                 I2C_BOARD_INFO("twl6030", 0x48),
 373                 .flags = I2C_CLIENT_WAKE,
 374                 .irq = OMAP44XX_IRQ_SYS_1N,
 375                 .platform_data = &omap4_panda_twldata,
 376         },
 377 };
 378 static int __init omap4_panda_i2c_init(void)
 379 {
 380         /*
 381          * Phoenix Audio IC needs I2C1 to
 382          * start with 400 KHz or less
 383          */
 384         omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo,
 385                         ARRAY_SIZE(omap4_panda_i2c_boardinfo));
 386         omap_register_i2c_bus(2, 400, NULL, 0);
 387         omap_register_i2c_bus(3, 400, NULL, 0);
 388         omap_register_i2c_bus(4, 400, NULL, 0);
 389         return 0;
 390 }
 391
 392 #ifdef CONFIG_OMAP_MUX
 393 static struct omap_board_mux board_mux[] __initdata = {
 394         { .reg_offset = OMAP_MUX_TERMINATOR },
 395 };
 396 #else
 397 #define board_mux       NULL
 398 #endif
 399
 400 static void __init omap4_panda_init(void)
 401 {
 402         int package = OMAP_PACKAGE_CBS;
 403
 404         if (omap_rev() == OMAP4430_REV_ES1_0)
 405                 package = OMAP_PACKAGE_CBL;
 406         omap4_mux_init(board_mux, package);
 407
 408         omap4_panda_i2c_init();
 409         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
 410         omap_serial_init();
 411         omap4_twl6030_hsmmc_init(mmc);
 412         /* OMAP4 Panda uses internal transceiver so register nop transceiver */
 413         usb_nop_xceiv_register();
 414         omap4_ehci_init();
 415         usb_musb_init(&musb_board_data);
 416 }
 417
 418 static void __init omap4_panda_map_io(void)
 419 {
 420         omap2_set_globals_443x();
 421         omap44xx_map_common_io();
 422 }
 423
 424 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
 425         /* Maintainer: David Anders - Texas Instruments Inc */
 426         .boot_params    = 0x80000100,
 427         .reserve        = omap_reserve,
 428         .map_io         = omap4_panda_map_io,
 429         .init_irq       = omap4_panda_init_irq,
 430         .init_machine   = omap4_panda_init,
 431         .timer          = &omap_timer,
 432 MACHINE_END