release/src-rt-6.x.4708/linux/linux-2.6.36/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/gpio.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26
  27 #include <linux/mtd/mtd.h>
  28 #include <linux/mtd/partitions.h>
  29 #include <linux/mtd/nand.h>
  30
  31 #include <linux/regulator/machine.h>
  32 #include <linux/i2c/twl.h>
  33
  34 #include <mach/hardware.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/flash.h>
  39
  40 #include <plat/board.h>
  41 #include <plat/common.h>
  42 #include <plat/display.h>
  43 #include <plat/gpmc.h>
  44 #include <plat/nand.h>
  45 #include <plat/usb.h>
  46 #include <plat/timer-gp.h>
  47
  48 #include "mux.h"
  49 #include "hsmmc.h"
  50
  51 #define NAND_BLOCK_SIZE         SZ_128K
  52
  53 static struct mtd_partition omap3beagle_nand_partitions[] = {
  54         /* All the partition sizes are listed in terms of NAND block size */
  55         {
  56                 .name           = "X-Loader",
  57                 .offset         = 0,
  58                 .size           = 4 * NAND_BLOCK_SIZE,
  59                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  60         },
  61         {
  62                 .name           = "U-Boot",
  63                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  64                 .size           = 15 * NAND_BLOCK_SIZE,
  65                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  66         },
  67         {
  68                 .name           = "U-Boot Env",
  69                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  70                 .size           = 1 * NAND_BLOCK_SIZE,
  71         },
  72         {
  73                 .name           = "Kernel",
  74                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  75                 .size           = 32 * NAND_BLOCK_SIZE,
  76         },
  77         {
  78                 .name           = "File System",
  79                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  80                 .size           = MTDPART_SIZ_FULL,
  81         },
  82 };
  83
  84 static struct omap_nand_platform_data omap3beagle_nand_data = {
  85         .options        = NAND_BUSWIDTH_16,
  86         .parts          = omap3beagle_nand_partitions,
  87         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  88         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  89         .nand_setup     = NULL,
  90         .dev_ready      = NULL,
  91 };
  92
  93 /* DSS */
  94
  95 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
  96 {
  97         if (gpio_is_valid(dssdev->reset_gpio))
  98                 gpio_set_value(dssdev->reset_gpio, 1);
  99
 100         return 0;
 101 }
 102
 103 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
 104 {
 105         if (gpio_is_valid(dssdev->reset_gpio))
 106                 gpio_set_value(dssdev->reset_gpio, 0);
 107 }
 108
 109 static struct omap_dss_device beagle_dvi_device = {
 110         .type = OMAP_DISPLAY_TYPE_DPI,
 111         .name = "dvi",
 112         .driver_name = "generic_panel",
 113         .phy.dpi.data_lines = 24,
 114         .reset_gpio = 170,
 115         .platform_enable = beagle_enable_dvi,
 116         .platform_disable = beagle_disable_dvi,
 117 };
 118
 119 static struct omap_dss_device beagle_tv_device = {
 120         .name = "tv",
 121         .driver_name = "venc",
 122         .type = OMAP_DISPLAY_TYPE_VENC,
 123         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 124 };
 125
 126 static struct omap_dss_device *beagle_dss_devices[] = {
 127         &beagle_dvi_device,
 128         &beagle_tv_device,
 129 };
 130
 131 static struct omap_dss_board_info beagle_dss_data = {
 132         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 133         .devices = beagle_dss_devices,
 134         .default_device = &beagle_dvi_device,
 135 };
 136
 137 static struct platform_device beagle_dss_device = {
 138         .name          = "omapdss",
 139         .id            = -1,
 140         .dev            = {
 141                 .platform_data = &beagle_dss_data,
 142         },
 143 };
 144
 145 static struct regulator_consumer_supply beagle_vdac_supply =
 146         REGULATOR_SUPPLY("vdda_dac", "omapdss");
 147
 148 static struct regulator_consumer_supply beagle_vdvi_supply =
 149         REGULATOR_SUPPLY("vdds_dsi", "omapdss");
 150
 151 static void __init beagle_display_init(void)
 152 {
 153         int r;
 154
 155         r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
 156         if (r < 0) {
 157                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 158                 return;
 159         }
 160
 161         gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
 162 }
 163
 164 #include "sdram-micron-mt46h32m32lf-6.h"
 165
 166 static struct omap2_hsmmc_info mmc[] = {
 167         {
 168                 .mmc            = 1,
 169                 .wires          = 8,
 170                 .gpio_wp        = 29,
 171         },
 172         {}      /* Terminator */
 173 };
 174
 175 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 176         .supply                 = "vmmc",
 177 };
 178
 179 static struct regulator_consumer_supply beagle_vsim_supply = {
 180         .supply                 = "vmmc_aux",
 181 };
 182
 183 static struct gpio_led gpio_leds[];
 184
 185 static int beagle_twl_gpio_setup(struct device *dev,
 186                 unsigned gpio, unsigned ngpio)
 187 {
 188         if (system_rev >= 0x20 && system_rev <= 0x34301000) {
 189                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 190                 mmc[0].gpio_wp = 23;
 191         } else {
 192                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
 193         }
 194         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 195         mmc[0].gpio_cd = gpio + 0;
 196         omap2_hsmmc_init(mmc);
 197
 198         /* link regulators to MMC adapters */
 199         beagle_vmmc1_supply.dev = mmc[0].dev;
 200         beagle_vsim_supply.dev = mmc[0].dev;
 201
 202         /* REVISIT: need ehci-omap hooks for external VBUS
 203          * power switch and overcurrent detect
 204          */
 205
 206         gpio_request(gpio + 1, "EHCI_nOC");
 207         gpio_direction_input(gpio + 1);
 208
 209         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 210         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 211         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 212
 213         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 214         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 215
 216         return 0;
 217 }
 218
 219 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 220         .gpio_base      = OMAP_MAX_GPIO_LINES,
 221         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 222         .irq_end        = TWL4030_GPIO_IRQ_END,
 223         .use_leds       = true,
 224         .pullups        = BIT(1),
 225         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 226                                 | BIT(15) | BIT(16) | BIT(17),
 227         .setup          = beagle_twl_gpio_setup,
 228 };
 229
 230 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 231 static struct regulator_init_data beagle_vmmc1 = {
 232         .constraints = {
 233                 .min_uV                 = 1850000,
 234                 .max_uV                 = 3150000,
 235                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 236                                         | REGULATOR_MODE_STANDBY,
 237                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 238                                         | REGULATOR_CHANGE_MODE
 239                                         | REGULATOR_CHANGE_STATUS,
 240         },
 241         .num_consumer_supplies  = 1,
 242         .consumer_supplies      = &beagle_vmmc1_supply,
 243 };
 244
 245 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 246 static struct regulator_init_data beagle_vsim = {
 247         .constraints = {
 248                 .min_uV                 = 1800000,
 249                 .max_uV                 = 3000000,
 250                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 251                                         | REGULATOR_MODE_STANDBY,
 252                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 253                                         | REGULATOR_CHANGE_MODE
 254                                         | REGULATOR_CHANGE_STATUS,
 255         },
 256         .num_consumer_supplies  = 1,
 257         .consumer_supplies      = &beagle_vsim_supply,
 258 };
 259
 260 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 261 static struct regulator_init_data beagle_vdac = {
 262         .constraints = {
 263                 .min_uV                 = 1800000,
 264                 .max_uV                 = 1800000,
 265                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 266                                         | REGULATOR_MODE_STANDBY,
 267                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 268                                         | REGULATOR_CHANGE_STATUS,
 269         },
 270         .num_consumer_supplies  = 1,
 271         .consumer_supplies      = &beagle_vdac_supply,
 272 };
 273
 274 /* VPLL2 for digital video outputs */
 275 static struct regulator_init_data beagle_vpll2 = {
 276         .constraints = {
 277                 .name                   = "VDVI",
 278                 .min_uV                 = 1800000,
 279                 .max_uV                 = 1800000,
 280                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 281                                         | REGULATOR_MODE_STANDBY,
 282                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 283                                         | REGULATOR_CHANGE_STATUS,
 284         },
 285         .num_consumer_supplies  = 1,
 286         .consumer_supplies      = &beagle_vdvi_supply,
 287 };
 288
 289 static struct twl4030_usb_data beagle_usb_data = {
 290         .usb_mode       = T2_USB_MODE_ULPI,
 291 };
 292
 293 static struct twl4030_codec_audio_data beagle_audio_data = {
 294         .audio_mclk = 26000000,
 295 };
 296
 297 static struct twl4030_codec_data beagle_codec_data = {
 298         .audio_mclk = 26000000,
 299         .audio = &beagle_audio_data,
 300 };
 301
 302 static struct twl4030_platform_data beagle_twldata = {
 303         .irq_base       = TWL4030_IRQ_BASE,
 304         .irq_end        = TWL4030_IRQ_END,
 305
 306         /* platform_data for children goes here */
 307         .usb            = &beagle_usb_data,
 308         .gpio           = &beagle_gpio_data,
 309         .codec          = &beagle_codec_data,
 310         .vmmc1          = &beagle_vmmc1,
 311         .vsim           = &beagle_vsim,
 312         .vdac           = &beagle_vdac,
 313         .vpll2          = &beagle_vpll2,
 314 };
 315
 316 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 317         {
 318                 I2C_BOARD_INFO("twl4030", 0x48),
 319                 .flags = I2C_CLIENT_WAKE,
 320                 .irq = INT_34XX_SYS_NIRQ,
 321                 .platform_data = &beagle_twldata,
 322         },
 323 };
 324
 325 static int __init omap3_beagle_i2c_init(void)
 326 {
 327         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 328                         ARRAY_SIZE(beagle_i2c_boardinfo));
 329         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 330          * projector don't work reliably with 400kHz */
 331         omap_register_i2c_bus(3, 100, NULL, 0);
 332         return 0;
 333 }
 334
 335 static struct gpio_led gpio_leds[] = {
 336         {
 337                 .name                   = "beagleboard::usr0",
 338                 .default_trigger        = "heartbeat",
 339                 .gpio                   = 150,
 340         },
 341         {
 342                 .name                   = "beagleboard::usr1",
 343                 .default_trigger        = "mmc0",
 344                 .gpio                   = 149,
 345         },
 346         {
 347                 .name                   = "beagleboard::pmu_stat",
 348                 .gpio                   = -EINVAL,      /* gets replaced */
 349                 .active_low             = true,
 350         },
 351 };
 352
 353 static struct gpio_led_platform_data gpio_led_info = {
 354         .leds           = gpio_leds,
 355         .num_leds       = ARRAY_SIZE(gpio_leds),
 356 };
 357
 358 static struct platform_device leds_gpio = {
 359         .name   = "leds-gpio",
 360         .id     = -1,
 361         .dev    = {
 362                 .platform_data  = &gpio_led_info,
 363         },
 364 };
 365
 366 static struct gpio_keys_button gpio_buttons[] = {
 367         {
 368                 .code                   = BTN_EXTRA,
 369                 .gpio                   = 7,
 370                 .desc                   = "user",
 371                 .wakeup                 = 1,
 372         },
 373 };
 374
 375 static struct gpio_keys_platform_data gpio_key_info = {
 376         .buttons        = gpio_buttons,
 377         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 378 };
 379
 380 static struct platform_device keys_gpio = {
 381         .name   = "gpio-keys",
 382         .id     = -1,
 383         .dev    = {
 384                 .platform_data  = &gpio_key_info,
 385         },
 386 };
 387
 388 static void __init omap3_beagle_init_irq(void)
 389 {
 390         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 391                              mt46h32m32lf6_sdrc_params);
 392         omap_init_irq();
 393 #ifdef CONFIG_OMAP_32K_TIMER
 394         omap2_gp_clockevent_set_gptimer(12);
 395 #endif
 396         omap_gpio_init();
 397 }
 398
 399 static struct platform_device *omap3_beagle_devices[] __initdata = {
 400         &leds_gpio,
 401         &keys_gpio,
 402         &beagle_dss_device,
 403 };
 404
 405 static void __init omap3beagle_flash_init(void)
 406 {
 407         u8 cs = 0;
 408         u8 nandcs = GPMC_CS_NUM + 1;
 409
 410         /* find out the chip-select on which NAND exists */
 411         while (cs < GPMC_CS_NUM) {
 412                 u32 ret = 0;
 413                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 414
 415                 if ((ret & 0xC00) == 0x800) {
 416                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 417                         if (nandcs > GPMC_CS_NUM)
 418                                 nandcs = cs;
 419                 }
 420                 cs++;
 421         }
 422
 423         if (nandcs > GPMC_CS_NUM) {
 424                 printk(KERN_INFO "NAND: Unable to find configuration "
 425                                  "in GPMC\n ");
 426                 return;
 427         }
 428
 429         if (nandcs < GPMC_CS_NUM) {
 430                 omap3beagle_nand_data.cs = nandcs;
 431
 432                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 433                 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
 434                         printk(KERN_ERR "Unable to register NAND device\n");
 435         }
 436 }
 437
 438 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 439
 440         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 441         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 442         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 443
 444         .phy_reset  = true,
 445         .reset_gpio_port[0]  = -EINVAL,
 446         .reset_gpio_port[1]  = 147,
 447         .reset_gpio_port[2]  = -EINVAL
 448 };
 449
 450 #ifdef CONFIG_OMAP_MUX
 451 static struct omap_board_mux board_mux[] __initdata = {
 452         { .reg_offset = OMAP_MUX_TERMINATOR },
 453 };
 454 #else
 455 #define board_mux       NULL
 456 #endif
 457
 458 static struct omap_musb_board_data musb_board_data = {
 459         .interface_type         = MUSB_INTERFACE_ULPI,
 460         .mode                   = MUSB_OTG,
 461         .power                  = 100,
 462 };
 463
 464 static void __init omap3_beagle_init(void)
 465 {
 466         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 467         omap3_beagle_i2c_init();
 468         platform_add_devices(omap3_beagle_devices,
 469                         ARRAY_SIZE(omap3_beagle_devices));
 470         omap_serial_init();
 471
 472         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
 473         gpio_request(170, "DVI_nPD");
 474         /* REVISIT leave DVI powered down until it's needed ... */
 475         gpio_direction_output(170, true);
 476
 477         usb_musb_init(&musb_board_data);
 478         usb_ehci_init(&ehci_pdata);
 479         omap3beagle_flash_init();
 480
 481         /* Ensure SDRC pins are mux'd for self-refresh */
 482         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 483         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 484
 485         beagle_display_init();
 486 }
 487
 488 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 489         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 490         .phys_io        = 0x48000000,
 491         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 492         .boot_params    = 0x80000100,
 493         .map_io         = omap3_map_io,
 494         .reserve        = omap_reserve,
 495         .init_irq       = omap3_beagle_init_irq,
 496         .init_machine   = omap3_beagle_init,
 497         .timer          = &omap_timer,
 498 MACHINE_END