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/io.h>
  23 #include <linux/leds.h>
  24 #include <linux/gpio.h>
  25 #include <linux/usb/otg.h>
  26 #include <linux/i2c/twl.h>
  27 #include <linux/regulator/machine.h>
  28
  29 #include <mach/hardware.h>
  30 #include <mach/omap4-common.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <plat/board.h>
  36 #include <plat/common.h>
  37 #include <plat/usb.h>
  38 #include <plat/mmc.h>
  39 #include "timer-gp.h"
  40
  41 #include "hsmmc.h"
  42 #include "control.h"
  43
  44 #define GPIO_HUB_POWER          1
  45 #define GPIO_HUB_NRESET         62
  46
  47 static struct gpio_led gpio_leds[] = {
  48         {
  49                 .name                   = "pandaboard::status1",
  50                 .default_trigger        = "heartbeat",
  51                 .gpio                   = 7,
  52         },
  53         {
  54                 .name                   = "pandaboard::status2",
  55                 .default_trigger        = "mmc0",
  56                 .gpio                   = 8,
  57         },
  58 };
  59
  60 static struct gpio_led_platform_data gpio_led_info = {
  61         .leds           = gpio_leds,
  62         .num_leds       = ARRAY_SIZE(gpio_leds),
  63 };
  64
  65 static struct platform_device leds_gpio = {
  66         .name   = "leds-gpio",
  67         .id     = -1,
  68         .dev    = {
  69                 .platform_data  = &gpio_led_info,
  70         },
  71 };
  72
  73 static struct platform_device *panda_devices[] __initdata = {
  74         &leds_gpio,
  75 };
  76
  77 static void __init omap4_panda_init_irq(void)
  78 {
  79         omap2_init_common_hw(NULL, NULL);
  80         gic_init_irq();
  81         omap_gpio_init();
  82 }
  83
  84 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
  85         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
  86         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
  87         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
  88         .phy_reset  = false,
  89         .reset_gpio_port[0]  = -EINVAL,
  90         .reset_gpio_port[1]  = -EINVAL,
  91         .reset_gpio_port[2]  = -EINVAL
  92 };
  93
  94 static void __init omap4_ehci_init(void)
  95 {
  96         int ret;
  97
  98
  99         /* disable the power to the usb hub prior to init */
 100         ret = gpio_request(GPIO_HUB_POWER, "hub_power");
 101         if (ret) {
 102                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
 103                 goto error1;
 104         }
 105         gpio_export(GPIO_HUB_POWER, 0);
 106         gpio_direction_output(GPIO_HUB_POWER, 0);
 107         gpio_set_value(GPIO_HUB_POWER, 0);
 108
 109         /* reset phy+hub */
 110         ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
 111         if (ret) {
 112                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
 113                 goto error2;
 114         }
 115         gpio_export(GPIO_HUB_NRESET, 0);
 116         gpio_direction_output(GPIO_HUB_NRESET, 0);
 117         gpio_set_value(GPIO_HUB_NRESET, 0);
 118         gpio_set_value(GPIO_HUB_NRESET, 1);
 119
 120         usb_ehci_init(&ehci_pdata);
 121
 122         /* enable power to hub */
 123         gpio_set_value(GPIO_HUB_POWER, 1);
 124         return;
 125
 126 error2:
 127         gpio_free(GPIO_HUB_POWER);
 128 error1:
 129         pr_err("Unable to initialize EHCI power/reset\n");
 130         return;
 131
 132 }
 133
 134 static struct omap_musb_board_data musb_board_data = {
 135         .interface_type         = MUSB_INTERFACE_UTMI,
 136         .mode                   = MUSB_PERIPHERAL,
 137         .power                  = 100,
 138 };
 139
 140 static struct omap2_hsmmc_info mmc[] = {
 141         {
 142                 .mmc            = 1,
 143                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 144                 .gpio_wp        = -EINVAL,
 145         },
 146         {}      /* Terminator */
 147 };
 148
 149 static struct regulator_consumer_supply omap4_panda_vmmc_supply[] = {
 150         {
 151                 .supply = "vmmc",
 152                 .dev_name = "mmci-omap-hs.0",
 153         },
 154 };
 155
 156 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
 157 {
 158         int ret = 0;
 159         struct platform_device *pdev = container_of(dev,
 160                                 struct platform_device, dev);
 161         struct omap_mmc_platform_data *pdata = dev->platform_data;
 162
 163         /* Setting MMC1 Card detect Irq */
 164         if (pdev->id == 0)
 165                 pdata->slots[0].card_detect_irq = TWL6030_IRQ_BASE +
 166                                                 MMCDETECT_INTR_OFFSET;
 167         return ret;
 168 }
 169
 170 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
 171 {
 172         struct omap_mmc_platform_data *pdata;
 173
 174         /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
 175         if (!dev) {
 176                 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
 177                 return;
 178         }
 179         pdata = dev->platform_data;
 180
 181         pdata->init =   omap4_twl6030_hsmmc_late_init;
 182 }
 183
 184 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
 185 {
 186         struct omap2_hsmmc_info *c;
 187
 188         omap2_hsmmc_init(controllers);
 189         for (c = controllers; c->mmc; c++)
 190                 omap4_twl6030_hsmmc_set_late_init(c->dev);
 191
 192         return 0;
 193 }
 194
 195 static struct regulator_init_data omap4_panda_vaux1 = {
 196         .constraints = {
 197                 .min_uV                 = 1000000,
 198                 .max_uV                 = 3000000,
 199                 .apply_uV               = true,
 200                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 201                                         | REGULATOR_MODE_STANDBY,
 202                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 203                                         | REGULATOR_CHANGE_MODE
 204                                         | REGULATOR_CHANGE_STATUS,
 205         },
 206 };
 207
 208 static struct regulator_init_data omap4_panda_vaux2 = {
 209         .constraints = {
 210                 .min_uV                 = 1200000,
 211                 .max_uV                 = 2800000,
 212                 .apply_uV               = true,
 213                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 214                                         | REGULATOR_MODE_STANDBY,
 215                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 216                                         | REGULATOR_CHANGE_MODE
 217                                         | REGULATOR_CHANGE_STATUS,
 218         },
 219 };
 220
 221 static struct regulator_init_data omap4_panda_vaux3 = {
 222         .constraints = {
 223                 .min_uV                 = 1000000,
 224                 .max_uV                 = 3000000,
 225                 .apply_uV               = true,
 226                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 227                                         | REGULATOR_MODE_STANDBY,
 228                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 229                                         | REGULATOR_CHANGE_MODE
 230                                         | REGULATOR_CHANGE_STATUS,
 231         },
 232 };
 233
 234 /* VMMC1 for MMC1 card */
 235 static struct regulator_init_data omap4_panda_vmmc = {
 236         .constraints = {
 237                 .min_uV                 = 1200000,
 238                 .max_uV                 = 3000000,
 239                 .apply_uV               = true,
 240                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 241                                         | REGULATOR_MODE_STANDBY,
 242                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 243                                         | REGULATOR_CHANGE_MODE
 244                                         | REGULATOR_CHANGE_STATUS,
 245         },
 246         .num_consumer_supplies  = 1,
 247         .consumer_supplies      = omap4_panda_vmmc_supply,
 248 };
 249
 250 static struct regulator_init_data omap4_panda_vpp = {
 251         .constraints = {
 252                 .min_uV                 = 1800000,
 253                 .max_uV                 = 2500000,
 254                 .apply_uV               = true,
 255                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 256                                         | REGULATOR_MODE_STANDBY,
 257                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 258                                         | REGULATOR_CHANGE_MODE
 259                                         | REGULATOR_CHANGE_STATUS,
 260         },
 261 };
 262
 263 static struct regulator_init_data omap4_panda_vusim = {
 264         .constraints = {
 265                 .min_uV                 = 1200000,
 266                 .max_uV                 = 2900000,
 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 };
 275
 276 static struct regulator_init_data omap4_panda_vana = {
 277         .constraints = {
 278                 .min_uV                 = 2100000,
 279                 .max_uV                 = 2100000,
 280                 .apply_uV               = true,
 281                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 282                                         | REGULATOR_MODE_STANDBY,
 283                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 284                                         | REGULATOR_CHANGE_STATUS,
 285         },
 286 };
 287
 288 static struct regulator_init_data omap4_panda_vcxio = {
 289         .constraints = {
 290                 .min_uV                 = 1800000,
 291                 .max_uV                 = 1800000,
 292                 .apply_uV               = true,
 293                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 294                                         | REGULATOR_MODE_STANDBY,
 295                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 296                                         | REGULATOR_CHANGE_STATUS,
 297         },
 298 };
 299
 300 static struct regulator_init_data omap4_panda_vdac = {
 301         .constraints = {
 302                 .min_uV                 = 1800000,
 303                 .max_uV                 = 1800000,
 304                 .apply_uV               = true,
 305                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 306                                         | REGULATOR_MODE_STANDBY,
 307                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 308                                         | REGULATOR_CHANGE_STATUS,
 309         },
 310 };
 311
 312 static struct regulator_init_data omap4_panda_vusb = {
 313         .constraints = {
 314                 .min_uV                 = 3300000,
 315                 .max_uV                 = 3300000,
 316                 .apply_uV               = true,
 317                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 318                                         | REGULATOR_MODE_STANDBY,
 319                 .valid_ops_mask  =      REGULATOR_CHANGE_MODE
 320                                         | REGULATOR_CHANGE_STATUS,
 321         },
 322 };
 323
 324 static struct twl4030_platform_data omap4_panda_twldata = {
 325         .irq_base       = TWL6030_IRQ_BASE,
 326         .irq_end        = TWL6030_IRQ_END,
 327
 328         /* Regulators */
 329         .vmmc           = &omap4_panda_vmmc,
 330         .vpp            = &omap4_panda_vpp,
 331         .vusim          = &omap4_panda_vusim,
 332         .vana           = &omap4_panda_vana,
 333         .vcxio          = &omap4_panda_vcxio,
 334         .vdac           = &omap4_panda_vdac,
 335         .vusb           = &omap4_panda_vusb,
 336         .vaux1          = &omap4_panda_vaux1,
 337         .vaux2          = &omap4_panda_vaux2,
 338         .vaux3          = &omap4_panda_vaux3,
 339 };
 340
 341 static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = {
 342         {
 343                 I2C_BOARD_INFO("twl6030", 0x48),
 344                 .flags = I2C_CLIENT_WAKE,
 345                 .irq = OMAP44XX_IRQ_SYS_1N,
 346                 .platform_data = &omap4_panda_twldata,
 347         },
 348 };
 349 static int __init omap4_panda_i2c_init(void)
 350 {
 351         /*
 352          * Phoenix Audio IC needs I2C1 to
 353          * start with 400 KHz or less
 354          */
 355         omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo,
 356                         ARRAY_SIZE(omap4_panda_i2c_boardinfo));
 357         omap_register_i2c_bus(2, 400, NULL, 0);
 358         omap_register_i2c_bus(3, 400, NULL, 0);
 359         omap_register_i2c_bus(4, 400, NULL, 0);
 360         return 0;
 361 }
 362 static void __init omap4_panda_init(void)
 363 {
 364         omap4_panda_i2c_init();
 365         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
 366         omap_serial_init();
 367         omap4_twl6030_hsmmc_init(mmc);
 368         /* OMAP4 Panda uses internal transceiver so register nop transceiver */
 369         usb_nop_xceiv_register();
 370         omap4_ehci_init();
 371         /* FIXME: allow multi-omap to boot until musb is updated for omap4 */
 372         if (!cpu_is_omap44xx())
 373                 usb_musb_init(&musb_board_data);
 374 }
 375
 376 static void __init omap4_panda_map_io(void)
 377 {
 378         omap2_set_globals_443x();
 379         omap44xx_map_common_io();
 380 }
 381
 382 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
 383         /* Maintainer: David Anders - Texas Instruments Inc */
 384         .boot_params    = 0x80000100,
 385         .map_io         = omap4_panda_map_io,
 386         .init_irq       = omap4_panda_init_irq,
 387         .init_machine   = omap4_panda_init,
 388         .timer          = &omap_timer,
 389 MACHINE_END