arch/arm/mach-omap2/board-omap3beagle.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3beagle.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/io.h>
  22 #include <linux/leds.h>
  23 #include <linux/pwm.h>
  24 #include <linux/leds_pwm.h>
  25 #include <linux/gpio.h>
  26 #include <linux/input.h>
  27 #include <linux/gpio_keys.h>
  28 #include <linux/opp.h>
  29 #include <linux/cpu.h>
  30
  31 #include <linux/mtd/mtd.h>
  32 #include <linux/mtd/partitions.h>
  33 #include <linux/mtd/nand.h>
  34 #include <linux/mmc/host.h>
  35 #include <linux/usb/phy.h>
  36
  37 #include <linux/regulator/machine.h>
  38 #include <linux/i2c/twl.h>
  39
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/flash.h>
  44
  45 #include <video/omapdss.h>
  46 #include <video/omap-panel-tfp410.h>
  47 #include <linux/platform_data/mtd-nand-omap2.h>
  48
  49 #include "common.h"
  50 #include "omap_device.h"
  51 #include "gpmc.h"
  52 #include "soc.h"
  53 #include "mux.h"
  54 #include "hsmmc.h"
  55 #include "pm.h"
  56 #include "board-flash.h"
  57 #include "common-board-devices.h"
  58
  59 #define NAND_CS 0
  60
  61 static struct pwm_lookup pwm_lookup[] = {
  62         /* LEDB -> PMU_STAT */
  63         PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat"),
  64 };
  65
  66 static struct led_pwm pwm_leds[] = {
  67         {
  68                 .name           = "beagleboard::pmu_stat",
  69                 .max_brightness = 127,
  70                 .pwm_period_ns  = 7812500,
  71         },
  72 };
  73
  74 static struct led_pwm_platform_data pwm_data = {
  75         .num_leds       = ARRAY_SIZE(pwm_leds),
  76         .leds           = pwm_leds,
  77 };
  78
  79 static struct platform_device leds_pwm = {
  80         .name   = "leds_pwm",
  81         .id     = -1,
  82         .dev    = {
  83                 .platform_data = &pwm_data,
  84         },
  85 };
  86
  87 /*
  88  * OMAP3 Beagle revision
  89  * Run time detection of Beagle revision is done by reading GPIO.
  90  * GPIO ID -
  91  *      AXBX    = GPIO173, GPIO172, GPIO171: 1 1 1
  92  *      C1_3    = GPIO173, GPIO172, GPIO171: 1 1 0
  93  *      C4      = GPIO173, GPIO172, GPIO171: 1 0 1
  94  *      XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
  95  *      XMC = GPIO173, GPIO172, GPIO171: 0 1 0
  96  */
  97 enum {
  98         OMAP3BEAGLE_BOARD_UNKN = 0,
  99         OMAP3BEAGLE_BOARD_AXBX,
 100         OMAP3BEAGLE_BOARD_C1_3,
 101         OMAP3BEAGLE_BOARD_C4,
 102         OMAP3BEAGLE_BOARD_XM,
 103         OMAP3BEAGLE_BOARD_XMC,
 104 };
 105
 106 static u8 omap3_beagle_version;
 107
 108 /*
 109  * Board-specific configuration
 110  * Defaults to BeagleBoard-xMC
 111  */
 112 static struct {
 113         int mmc1_gpio_wp;
 114         int usb_pwr_level;
 115         int dvi_pd_gpio;
 116         int usr_button_gpio;
 117         int mmc_caps;
 118 } beagle_config = {
 119         .mmc1_gpio_wp = -EINVAL,
 120         .usb_pwr_level = GPIOF_OUT_INIT_LOW,
 121         .dvi_pd_gpio = -EINVAL,
 122         .usr_button_gpio = 4,
 123         .mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 124 };
 125
 126 static struct gpio omap3_beagle_rev_gpios[] __initdata = {
 127         { 171, GPIOF_IN, "rev_id_0"    },
 128         { 172, GPIOF_IN, "rev_id_1" },
 129         { 173, GPIOF_IN, "rev_id_2"    },
 130 };
 131
 132 static void __init omap3_beagle_init_rev(void)
 133 {
 134         int ret;
 135         u16 beagle_rev = 0;
 136
 137         omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
 138         omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
 139         omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
 140
 141         ret = gpio_request_array(omap3_beagle_rev_gpios,
 142                                  ARRAY_SIZE(omap3_beagle_rev_gpios));
 143         if (ret < 0) {
 144                 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
 145                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 146                 return;
 147         }
 148
 149         beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
 150                         | (gpio_get_value(173) << 2);
 151
 152         gpio_free_array(omap3_beagle_rev_gpios,
 153                         ARRAY_SIZE(omap3_beagle_rev_gpios));
 154
 155         switch (beagle_rev) {
 156         case 7:
 157                 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
 158                 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
 159                 beagle_config.mmc1_gpio_wp = 29;
 160                 beagle_config.dvi_pd_gpio = 170;
 161                 beagle_config.usr_button_gpio = 7;
 162                 break;
 163         case 6:
 164                 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
 165                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
 166                 beagle_config.mmc1_gpio_wp = 23;
 167                 beagle_config.dvi_pd_gpio = 170;
 168                 beagle_config.usr_button_gpio = 7;
 169                 break;
 170         case 5:
 171                 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
 172                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
 173                 beagle_config.mmc1_gpio_wp = 23;
 174                 beagle_config.dvi_pd_gpio = 170;
 175                 beagle_config.usr_button_gpio = 7;
 176                 break;
 177         case 0:
 178                 printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
 179                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
 180                 beagle_config.usb_pwr_level = GPIOF_OUT_INIT_HIGH;
 181                 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
 182                 break;
 183         case 2:
 184                 printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
 185                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
 186                 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
 187                 break;
 188         default:
 189                 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
 190                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 191         }
 192 }
 193
 194 static struct mtd_partition omap3beagle_nand_partitions[] = {
 195         /* All the partition sizes are listed in terms of NAND block size */
 196         {
 197                 .name           = "X-Loader",
 198                 .offset         = 0,
 199                 .size           = 4 * NAND_BLOCK_SIZE,
 200                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 201         },
 202         {
 203                 .name           = "U-Boot",
 204                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 205                 .size           = 15 * NAND_BLOCK_SIZE,
 206                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 207         },
 208         {
 209                 .name           = "U-Boot Env",
 210                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 211                 .size           = 1 * NAND_BLOCK_SIZE,
 212         },
 213         {
 214                 .name           = "Kernel",
 215                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 216                 .size           = 32 * NAND_BLOCK_SIZE,
 217         },
 218         {
 219                 .name           = "File System",
 220                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 221                 .size           = MTDPART_SIZ_FULL,
 222         },
 223 };
 224
 225 /* DSS */
 226
 227 static struct tfp410_platform_data dvi_panel = {
 228         .i2c_bus_num = 3,
 229         .power_down_gpio = -1,
 230 };
 231
 232 static struct omap_dss_device beagle_dvi_device = {
 233         .type = OMAP_DISPLAY_TYPE_DPI,
 234         .name = "dvi",
 235         .driver_name = "tfp410",
 236         .data = &dvi_panel,
 237         .phy.dpi.data_lines = 24,
 238 };
 239
 240 static struct omap_dss_device beagle_tv_device = {
 241         .name = "tv",
 242         .driver_name = "venc",
 243         .type = OMAP_DISPLAY_TYPE_VENC,
 244         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 245 };
 246
 247 static struct omap_dss_device *beagle_dss_devices[] = {
 248         &beagle_dvi_device,
 249         &beagle_tv_device,
 250 };
 251
 252 static struct omap_dss_board_info beagle_dss_data = {
 253         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 254         .devices = beagle_dss_devices,
 255         .default_device = &beagle_dvi_device,
 256 };
 257
 258 #include "sdram-micron-mt46h32m32lf-6.h"
 259
 260 static struct omap2_hsmmc_info mmc[] = {
 261         {
 262                 .mmc            = 1,
 263                 .caps           = MMC_CAP_4_BIT_DATA,
 264                 .gpio_wp        = -EINVAL,
 265                 .deferred       = true,
 266         },
 267         {}      /* Terminator */
 268 };
 269
 270 static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
 271         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
 272 };
 273
 274 static struct regulator_consumer_supply beagle_vsim_supply[] = {
 275         REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
 276 };
 277
 278 static struct gpio_led gpio_leds[];
 279
 280 static int beagle_twl_gpio_setup(struct device *dev,
 281                 unsigned gpio, unsigned ngpio)
 282 {
 283         int r;
 284
 285         mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
 286         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 287         mmc[0].gpio_cd = gpio + 0;
 288         omap_hsmmc_late_init(mmc);
 289
 290         /*
 291          * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
 292          * high / others active low)
 293          * DVI reset GPIO is different between beagle revisions
 294          */
 295         /* Valid for all -xM revisions */
 296         if (cpu_is_omap3630()) {
 297                 /*
 298                  * gpio + 1 on Xm controls the TFP410's enable line (active low)
 299                  * gpio + 2 control varies depending on the board rev as below:
 300                  * P7/P8 revisions(prototype): Camera EN
 301                  * A2+ revisions (production): LDO (DVI, serial, led blocks)
 302                  */
 303                 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
 304                                      "nDVI_PWR_EN");
 305                 if (r)
 306                         pr_err("%s: unable to configure nDVI_PWR_EN\n",
 307                                 __func__);
 308
 309                 beagle_config.dvi_pd_gpio = gpio + 2;
 310
 311         } else {
 312                 /*
 313                  * REVISIT: need ehci-omap hooks for external VBUS
 314                  * power switch and overcurrent detect
 315                  */
 316                 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
 317                         pr_err("%s: unable to configure EHCI_nOC\n", __func__);
 318         }
 319         dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio;
 320
 321         gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
 322                         "nEN_USB_PWR");
 323
 324         return 0;
 325 }
 326
 327 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 328         .use_leds       = true,
 329         .pullups        = BIT(1),
 330         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 331                                 | BIT(15) | BIT(16) | BIT(17),
 332         .setup          = beagle_twl_gpio_setup,
 333 };
 334
 335 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 336 static struct regulator_init_data beagle_vmmc1 = {
 337         .constraints = {
 338                 .min_uV                 = 1850000,
 339                 .max_uV                 = 3150000,
 340                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 341                                         | REGULATOR_MODE_STANDBY,
 342                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 343                                         | REGULATOR_CHANGE_MODE
 344                                         | REGULATOR_CHANGE_STATUS,
 345         },
 346         .num_consumer_supplies  = ARRAY_SIZE(beagle_vmmc1_supply),
 347         .consumer_supplies      = beagle_vmmc1_supply,
 348 };
 349
 350 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 351 static struct regulator_init_data beagle_vsim = {
 352         .constraints = {
 353                 .min_uV                 = 1800000,
 354                 .max_uV                 = 3000000,
 355                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 356                                         | REGULATOR_MODE_STANDBY,
 357                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 358                                         | REGULATOR_CHANGE_MODE
 359                                         | REGULATOR_CHANGE_STATUS,
 360         },
 361         .num_consumer_supplies  = ARRAY_SIZE(beagle_vsim_supply),
 362         .consumer_supplies      = beagle_vsim_supply,
 363 };
 364
 365 static struct twl4030_platform_data beagle_twldata = {
 366         /* platform_data for children goes here */
 367         .gpio           = &beagle_gpio_data,
 368         .vmmc1          = &beagle_vmmc1,
 369         .vsim           = &beagle_vsim,
 370 };
 371
 372 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
 373        {
 374                I2C_BOARD_INFO("eeprom", 0x50),
 375        },
 376 };
 377
 378 static int __init omap3_beagle_i2c_init(void)
 379 {
 380         omap3_pmic_get_config(&beagle_twldata,
 381                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
 382                         TWL_COMMON_PDATA_AUDIO,
 383                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
 384
 385         beagle_twldata.vpll2->constraints.name = "VDVI";
 386
 387         omap3_pmic_init("twl4030", &beagle_twldata);
 388         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 389          * projector don't work reliably with 400kHz */
 390         omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
 391         return 0;
 392 }
 393
 394 static struct gpio_led gpio_leds[] = {
 395         {
 396                 .name                   = "beagleboard::usr0",
 397                 .default_trigger        = "heartbeat",
 398                 .gpio                   = 150,
 399         },
 400         {
 401                 .name                   = "beagleboard::usr1",
 402                 .default_trigger        = "mmc0",
 403                 .gpio                   = 149,
 404         },
 405 };
 406
 407 static struct gpio_led_platform_data gpio_led_info = {
 408         .leds           = gpio_leds,
 409         .num_leds       = ARRAY_SIZE(gpio_leds),
 410 };
 411
 412 static struct platform_device leds_gpio = {
 413         .name   = "leds-gpio",
 414         .id     = -1,
 415         .dev    = {
 416                 .platform_data  = &gpio_led_info,
 417         },
 418 };
 419
 420 static struct gpio_keys_button gpio_buttons[] = {
 421         {
 422                 .code                   = BTN_EXTRA,
 423                 /* Dynamically assigned depending on board */
 424                 .gpio                   = -EINVAL,
 425                 .desc                   = "user",
 426                 .wakeup                 = 1,
 427         },
 428 };
 429
 430 static struct gpio_keys_platform_data gpio_key_info = {
 431         .buttons        = gpio_buttons,
 432         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 433 };
 434
 435 static struct platform_device keys_gpio = {
 436         .name   = "gpio-keys",
 437         .id     = -1,
 438         .dev    = {
 439                 .platform_data  = &gpio_key_info,
 440         },
 441 };
 442
 443 static struct platform_device madc_hwmon = {
 444         .name   = "twl4030_madc_hwmon",
 445         .id     = -1,
 446 };
 447
 448 static struct platform_device *omap3_beagle_devices[] __initdata = {
 449         &leds_gpio,
 450         &keys_gpio,
 451         &madc_hwmon,
 452         &leds_pwm,
 453 };
 454
 455 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
 456
 457         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 458         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 459         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 460
 461         .phy_reset  = true,
 462         .reset_gpio_port[0]  = -EINVAL,
 463         .reset_gpio_port[1]  = 147,
 464         .reset_gpio_port[2]  = -EINVAL
 465 };
 466
 467 #ifdef CONFIG_OMAP_MUX
 468 static struct omap_board_mux board_mux[] __initdata = {
 469         { .reg_offset = OMAP_MUX_TERMINATOR },
 470 };
 471 #endif
 472
 473 static int __init beagle_opp_init(void)
 474 {
 475         int r = 0;
 476
 477         if (!machine_is_omap3_beagle())
 478                 return 0;
 479
 480         /* Initialize the omap3 opp table if not already created. */
 481         r = omap3_opp_init();
 482         if (r < 0 && (r != -EEXIST)) {
 483                 pr_err("%s: opp default init failed\n", __func__);
 484                 return r;
 485         }
 486
 487         /* Custom OPP enabled for all xM versions */
 488         if (cpu_is_omap3630()) {
 489                 struct device *mpu_dev, *iva_dev;
 490
 491                 mpu_dev = get_cpu_device(0);
 492                 iva_dev = omap_device_get_by_hwmod_name("iva");
 493
 494                 if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) {
 495                         pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
 496                                 __func__, mpu_dev, iva_dev);
 497                         return -ENODEV;
 498                 }
 499                 /* Enable MPU 1GHz and lower opps */
 500                 r = opp_enable(mpu_dev, 800000000);
 501                 /* TODO: MPU 1GHz needs SR and ABB */
 502
 503                 /* Enable IVA 800MHz and lower opps */
 504                 r |= opp_enable(iva_dev, 660000000);
 505                 /* TODO: DSP 800MHz needs SR and ABB */
 506                 if (r) {
 507                         pr_err("%s: failed to enable higher opp %d\n",
 508                                 __func__, r);
 509                         /*
 510                          * Cleanup - disable the higher freqs - we dont care
 511                          * about the results
 512                          */
 513                         opp_disable(mpu_dev, 800000000);
 514                         opp_disable(iva_dev, 660000000);
 515                 }
 516         }
 517         return 0;
 518 }
 519 omap_device_initcall(beagle_opp_init);
 520
 521 static void __init omap3_beagle_init(void)
 522 {
 523         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 524         omap3_beagle_init_rev();
 525
 526         if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
 527                 omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
 528         mmc[0].caps = beagle_config.mmc_caps;
 529         omap_hsmmc_init(mmc);
 530
 531         omap3_beagle_i2c_init();
 532
 533         gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
 534
 535         platform_add_devices(omap3_beagle_devices,
 536                         ARRAY_SIZE(omap3_beagle_devices));
 537         if (gpio_is_valid(beagle_config.dvi_pd_gpio))
 538                 omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
 539         omap_display_init(&beagle_dss_data);
 540         omap_serial_init();
 541         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
 542                                   mt46h32m32lf6_sdrc_params);
 543
 544         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 545         usb_musb_init(NULL);
 546         usbhs_init(&usbhs_bdata);
 547         board_nand_init(omap3beagle_nand_partitions,
 548                         ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS,
 549                         NAND_BUSWIDTH_16, NULL);
 550         omap_twl4030_audio_init("omap3beagle", NULL);
 551
 552         /* Ensure msecure is mux'd to be able to set the RTC. */
 553         omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
 554
 555         /* Ensure SDRC pins are mux'd for self-refresh */
 556         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 557         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 558
 559         pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
 560 }
 561
 562 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 563         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 564         .atag_offset    = 0x100,
 565         .reserve        = omap_reserve,
 566         .map_io         = omap3_map_io,
 567         .init_early     = omap3_init_early,
 568         .init_irq       = omap3_init_irq,
 569         .handle_irq     = omap3_intc_handle_irq,
 570         .init_machine   = omap3_beagle_init,
 571         .init_late      = omap3_init_late,
 572         .init_time      = omap3_secure_sync32k_timer_init,
 573         .restart        = omap3xxx_restart,
 574 MACHINE_END