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_early(void)
  80 {
  81         omap2_init_common_infrastructure();
  82         omap2_init_common_devices(NULL, NULL);
  83 }
  84
  85 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
  86         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
  87         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
  88         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
  89         .phy_reset  = false,
  90         .reset_gpio_port[0]  = -EINVAL,
  91         .reset_gpio_port[1]  = -EINVAL,
  92         .reset_gpio_port[2]  = -EINVAL
  93 };
  94
  95 static void __init omap4_ehci_init(void)
  96 {
  97         int ret;
  98         struct clk *phy_ref_clk;
  99
 100         /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
 101         phy_ref_clk = clk_get(NULL, "auxclk3_ck");
 102         if (IS_ERR(phy_ref_clk)) {
 103                 pr_err("Cannot request auxclk3\n");
 104                 goto error1;
 105         }
 106         clk_set_rate(phy_ref_clk, 19200000);
 107         clk_enable(phy_ref_clk);
 108
 109         /* disable the power to the usb hub prior to init */
 110         ret = gpio_request(GPIO_HUB_POWER, "hub_power");
 111         if (ret) {
 112                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
 113                 goto error1;
 114         }
 115         gpio_export(GPIO_HUB_POWER, 0);
 116         gpio_direction_output(GPIO_HUB_POWER, 0);
 117         gpio_set_value(GPIO_HUB_POWER, 0);
 118
 119         /* reset phy+hub */
 120         ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
 121         if (ret) {
 122                 pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
 123                 goto error2;
 124         }
 125         gpio_export(GPIO_HUB_NRESET, 0);
 126         gpio_direction_output(GPIO_HUB_NRESET, 0);
 127         gpio_set_value(GPIO_HUB_NRESET, 0);
 128         gpio_set_value(GPIO_HUB_NRESET, 1);
 129
 130         usb_ehci_init(&ehci_pdata);
 131
 132         /* enable power to hub */
 133         gpio_set_value(GPIO_HUB_POWER, 1);
 134         return;
 135
 136 error2:
 137         gpio_free(GPIO_HUB_POWER);
 138 error1:
 139         pr_err("Unable to initialize EHCI power/reset\n");
 140         return;
 141
 142 }
 143
 144 static struct omap_musb_board_data musb_board_data = {
 145         .interface_type         = MUSB_INTERFACE_UTMI,
 146         .mode                   = MUSB_OTG,
 147         .power                  = 100,
 148 };
 149
 150 static struct twl4030_usb_data omap4_usbphy_data = {
 151         .phy_init       = omap4430_phy_init,
 152         .phy_exit       = omap4430_phy_exit,
 153         .phy_power      = omap4430_phy_power,
 154         .phy_set_clock  = omap4430_phy_set_clk,
 155 };
 156
 157 static struct omap2_hsmmc_info mmc[] = {
 158         {
 159                 .mmc            = 1,
 160                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 161                 .gpio_wp        = -EINVAL,
 162                 .gpio_cd        = -EINVAL,
 163         },
 164         {}      /* Terminator */
 165 };
 166
 167 static struct regulator_consumer_supply omap4_panda_vmmc_supply[] = {
 168         {
 169                 .supply = "vmmc",
 170                 .dev_name = "mmci-omap-hs.0",
 171         },
 172 };
 173
 174 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
 175 {
 176         int ret = 0;
 177         struct platform_device *pdev = container_of(dev,
 178                                 struct platform_device, dev);
 179         struct omap_mmc_platform_data *pdata = dev->platform_data;
 180
 181         if (!pdata) {
 182                 dev_err(dev, "%s: NULL platform data\n", __func__);
 183                 return -EINVAL;
 184         }
 185         /* Setting MMC1 Card detect Irq */
 186         if (pdev->id == 0) {
 187                 ret = twl6030_mmc_card_detect_config();
 188                  if (ret)
 189                         dev_err(dev, "%s: Error card detect config(%d)\n",
 190                                 __func__, ret);
 191                  else
 192                         pdata->slots[0].card_detect = twl6030_mmc_card_detect;
 193         }
 194         return ret;
 195 }
 196
 197 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
 198 {
 199         struct omap_mmc_platform_data *pdata;
 200
 201         /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
 202         if (!dev) {
 203                 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
 204                 return;
 205         }
 206         pdata = dev->platform_data;
 207
 208         pdata->init =   omap4_twl6030_hsmmc_late_init;
 209 }
 210
 211 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
 212 {
 213         struct omap2_hsmmc_info *c;
 214
 215         omap2_hsmmc_init(controllers);
 216         for (c = controllers; c->mmc; c++)
 217                 omap4_twl6030_hsmmc_set_late_init(c->dev);
 218
 219         return 0;
 220 }
 221
 222 static struct regulator_init_data omap4_panda_vaux1 = {
 223         .constraints = {
 224                 .min_uV                 = 1000000,
 225                 .max_uV                 = 3000000,
 226                 .apply_uV               = true,
 227                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 228                                         | REGULATOR_MODE_STANDBY,
 229                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 230                                         | REGULATOR_CHANGE_MODE
 231                                         | REGULATOR_CHANGE_STATUS,
 232         },
 233 };
 234
 235 static struct regulator_init_data omap4_panda_vaux2 = {
 236         .constraints = {
 237                 .min_uV                 = 1200000,
 238                 .max_uV                 = 2800000,
 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 };
 247
 248 static struct regulator_init_data omap4_panda_vaux3 = {
 249         .constraints = {
 250                 .min_uV                 = 1000000,
 251                 .max_uV                 = 3000000,
 252                 .apply_uV               = true,
 253                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 254                                         | REGULATOR_MODE_STANDBY,
 255                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 256                                         | REGULATOR_CHANGE_MODE
 257                                         | REGULATOR_CHANGE_STATUS,
 258         },
 259 };
 260
 261 /* VMMC1 for MMC1 card */
 262 static struct regulator_init_data omap4_panda_vmmc = {
 263         .constraints = {
 264                 .min_uV                 = 1200000,
 265                 .max_uV                 = 3000000,
 266                 .apply_uV               = true,
 267                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 268                                         | REGULATOR_MODE_STANDBY,
 269                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 270                                         | REGULATOR_CHANGE_MODE
 271                                         | REGULATOR_CHANGE_STATUS,
 272         },
 273         .num_consumer_supplies  = 1,
 274         .consumer_supplies      = omap4_panda_vmmc_supply,
 275 };
 276
 277 static struct regulator_init_data omap4_panda_vpp = {
 278         .constraints = {
 279                 .min_uV                 = 1800000,
 280                 .max_uV                 = 2500000,
 281                 .apply_uV               = true,
 282                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 283                                         | REGULATOR_MODE_STANDBY,
 284                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 285                                         | REGULATOR_CHANGE_MODE
 286                                         | REGULATOR_CHANGE_STATUS,
 287         },
 288 };
 289
 290 static struct regulator_init_data omap4_panda_vusim = {
 291         .constraints = {
 292                 .min_uV                 = 1200000,
 293                 .max_uV                 = 2900000,
 294                 .apply_uV               = true,
 295                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 296                                         | REGULATOR_MODE_STANDBY,
 297                 .valid_ops_mask  = REGULATOR_CHANGE_VOLTAGE
 298                                         | REGULATOR_CHANGE_MODE
 299                                         | REGULATOR_CHANGE_STATUS,
 300         },
 301 };
 302
 303 static struct regulator_init_data omap4_panda_vana = {
 304         .constraints = {
 305                 .min_uV                 = 2100000,
 306                 .max_uV                 = 2100000,
 307                 .apply_uV               = true,
 308                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 309                                         | REGULATOR_MODE_STANDBY,
 310                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 311                                         | REGULATOR_CHANGE_STATUS,
 312         },
 313 };
 314
 315 static struct regulator_init_data omap4_panda_vcxio = {
 316         .constraints = {
 317                 .min_uV                 = 1800000,
 318                 .max_uV                 = 1800000,
 319                 .apply_uV               = true,
 320                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 321                                         | REGULATOR_MODE_STANDBY,
 322                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 323                                         | REGULATOR_CHANGE_STATUS,
 324         },
 325 };
 326
 327 static struct regulator_init_data omap4_panda_vdac = {
 328         .constraints = {
 329                 .min_uV                 = 1800000,
 330                 .max_uV                 = 1800000,
 331                 .apply_uV               = true,
 332                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 333                                         | REGULATOR_MODE_STANDBY,
 334                 .valid_ops_mask  = REGULATOR_CHANGE_MODE
 335                                         | REGULATOR_CHANGE_STATUS,
 336         },
 337 };
 338
 339 static struct regulator_init_data omap4_panda_vusb = {
 340         .constraints = {
 341                 .min_uV                 = 3300000,
 342                 .max_uV                 = 3300000,
 343                 .apply_uV               = true,
 344                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 345                                         | REGULATOR_MODE_STANDBY,
 346                 .valid_ops_mask  =      REGULATOR_CHANGE_MODE
 347                                         | REGULATOR_CHANGE_STATUS,
 348         },
 349 };
 350
 351 static struct twl4030_platform_data omap4_panda_twldata = {
 352         .irq_base       = TWL6030_IRQ_BASE,
 353         .irq_end        = TWL6030_IRQ_END,
 354
 355         /* Regulators */
 356         .vmmc           = &omap4_panda_vmmc,
 357         .vpp            = &omap4_panda_vpp,
 358         .vusim          = &omap4_panda_vusim,
 359         .vana           = &omap4_panda_vana,
 360         .vcxio          = &omap4_panda_vcxio,
 361         .vdac           = &omap4_panda_vdac,
 362         .vusb           = &omap4_panda_vusb,
 363         .vaux1          = &omap4_panda_vaux1,
 364         .vaux2          = &omap4_panda_vaux2,
 365         .vaux3          = &omap4_panda_vaux3,
 366         .usb            = &omap4_usbphy_data,
 367 };
 368
 369 static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = {
 370         {
 371                 I2C_BOARD_INFO("twl6030", 0x48),
 372                 .flags = I2C_CLIENT_WAKE,
 373                 .irq = OMAP44XX_IRQ_SYS_1N,
 374                 .platform_data = &omap4_panda_twldata,
 375         },
 376 };
 377 static int __init omap4_panda_i2c_init(void)
 378 {
 379         /*
 380          * Phoenix Audio IC needs I2C1 to
 381          * start with 400 KHz or less
 382          */
 383         omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo,
 384                         ARRAY_SIZE(omap4_panda_i2c_boardinfo));
 385         omap_register_i2c_bus(2, 400, NULL, 0);
 386         omap_register_i2c_bus(3, 400, NULL, 0);
 387         omap_register_i2c_bus(4, 400, NULL, 0);
 388         return 0;
 389 }
 390
 391 #ifdef CONFIG_OMAP_MUX
 392 static struct omap_board_mux board_mux[] __initdata = {
 393         { .reg_offset = OMAP_MUX_TERMINATOR },
 394 };
 395 #else
 396 #define board_mux       NULL
 397 #endif
 398
 399 static void __init omap4_panda_init(void)
 400 {
 401         int package = OMAP_PACKAGE_CBS;
 402
 403         if (omap_rev() == OMAP4430_REV_ES1_0)
 404                 package = OMAP_PACKAGE_CBL;
 405         omap4_mux_init(board_mux, package);
 406
 407         omap4_panda_i2c_init();
 408         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
 409         omap_serial_init();
 410         omap4_twl6030_hsmmc_init(mmc);
 411         omap4_ehci_init();
 412         usb_musb_init(&musb_board_data);
 413 }
 414
 415 static void __init omap4_panda_map_io(void)
 416 {
 417         omap2_set_globals_443x();
 418         omap44xx_map_common_io();
 419 }
 420
 421 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
 422         /* Maintainer: David Anders - Texas Instruments Inc */
 423         .boot_params    = 0x80000100,
 424         .reserve        = omap_reserve,
 425         .map_io         = omap4_panda_map_io,
 426         .init_early     = omap4_panda_init_early,
 427         .init_irq       = gic_init_irq,
 428         .init_machine   = omap4_panda_init,
 429         .timer          = &omap_timer,
 430 MACHINE_END