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 #include <linux/mmc/host.h>
  31
  32 #include <linux/regulator/machine.h>
  33 #include <linux/i2c/twl.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/flash.h>
  40
  41 #include <plat/board.h>
  42 #include <plat/common.h>
  43 #include <plat/display.h>
  44 #include <plat/gpmc.h>
  45 #include <plat/nand.h>
  46 #include <plat/usb.h>
  47 #include <plat/timer-gp.h>
  48
  49 #include "mux.h"
  50 #include "hsmmc.h"
  51
  52 #define NAND_BLOCK_SIZE         SZ_128K
  53
  54 static struct mtd_partition omap3beagle_nand_partitions[] = {
  55         /* All the partition sizes are listed in terms of NAND block size */
  56         {
  57                 .name           = "X-Loader",
  58                 .offset         = 0,
  59                 .size           = 4 * NAND_BLOCK_SIZE,
  60                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  61         },
  62         {
  63                 .name           = "U-Boot",
  64                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  65                 .size           = 15 * NAND_BLOCK_SIZE,
  66                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  67         },
  68         {
  69                 .name           = "U-Boot Env",
  70                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  71                 .size           = 1 * NAND_BLOCK_SIZE,
  72         },
  73         {
  74                 .name           = "Kernel",
  75                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  76                 .size           = 32 * NAND_BLOCK_SIZE,
  77         },
  78         {
  79                 .name           = "File System",
  80                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  81                 .size           = MTDPART_SIZ_FULL,
  82         },
  83 };
  84
  85 static struct omap_nand_platform_data omap3beagle_nand_data = {
  86         .options        = NAND_BUSWIDTH_16,
  87         .parts          = omap3beagle_nand_partitions,
  88         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  89         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  90         .nand_setup     = NULL,
  91         .dev_ready      = NULL,
  92 };
  93
  94 /* DSS */
  95
  96 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
  97 {
  98         if (gpio_is_valid(dssdev->reset_gpio))
  99                 gpio_set_value(dssdev->reset_gpio, 1);
 100
 101         return 0;
 102 }
 103
 104 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
 105 {
 106         if (gpio_is_valid(dssdev->reset_gpio))
 107                 gpio_set_value(dssdev->reset_gpio, 0);
 108 }
 109
 110 static struct omap_dss_device beagle_dvi_device = {
 111         .type = OMAP_DISPLAY_TYPE_DPI,
 112         .name = "dvi",
 113         .driver_name = "generic_panel",
 114         .phy.dpi.data_lines = 24,
 115         .reset_gpio = 170,
 116         .platform_enable = beagle_enable_dvi,
 117         .platform_disable = beagle_disable_dvi,
 118 };
 119
 120 static struct omap_dss_device beagle_tv_device = {
 121         .name = "tv",
 122         .driver_name = "venc",
 123         .type = OMAP_DISPLAY_TYPE_VENC,
 124         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 125 };
 126
 127 static struct omap_dss_device *beagle_dss_devices[] = {
 128         &beagle_dvi_device,
 129         &beagle_tv_device,
 130 };
 131
 132 static struct omap_dss_board_info beagle_dss_data = {
 133         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 134         .devices = beagle_dss_devices,
 135         .default_device = &beagle_dvi_device,
 136 };
 137
 138 static struct platform_device beagle_dss_device = {
 139         .name          = "omapdss",
 140         .id            = -1,
 141         .dev            = {
 142                 .platform_data = &beagle_dss_data,
 143         },
 144 };
 145
 146 static struct regulator_consumer_supply beagle_vdac_supply =
 147         REGULATOR_SUPPLY("vdda_dac", "omapdss");
 148
 149 static struct regulator_consumer_supply beagle_vdvi_supply =
 150         REGULATOR_SUPPLY("vdds_dsi", "omapdss");
 151
 152 static void __init beagle_display_init(void)
 153 {
 154         int r;
 155
 156         r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
 157         if (r < 0) {
 158                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 159                 return;
 160         }
 161
 162         gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
 163 }
 164
 165 #include "sdram-micron-mt46h32m32lf-6.h"
 166
 167 static struct omap2_hsmmc_info mmc[] = {
 168         {
 169                 .mmc            = 1,
 170                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 171                 .gpio_wp        = 29,
 172         },
 173         {}      /* Terminator */
 174 };
 175
 176 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 177         .supply                 = "vmmc",
 178 };
 179
 180 static struct regulator_consumer_supply beagle_vsim_supply = {
 181         .supply                 = "vmmc_aux",
 182 };
 183
 184 static struct gpio_led gpio_leds[];
 185
 186 static int beagle_twl_gpio_setup(struct device *dev,
 187                 unsigned gpio, unsigned ngpio)
 188 {
 189         if (system_rev >= 0x20 && system_rev <= 0x34301000) {
 190                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 191                 mmc[0].gpio_wp = 23;
 192         } else {
 193                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
 194         }
 195         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 196         mmc[0].gpio_cd = gpio + 0;
 197         omap2_hsmmc_init(mmc);
 198
 199         /* link regulators to MMC adapters */
 200         beagle_vmmc1_supply.dev = mmc[0].dev;
 201         beagle_vsim_supply.dev = mmc[0].dev;
 202
 203         /* REVISIT: need ehci-omap hooks for external VBUS
 204          * power switch and overcurrent detect
 205          */
 206
 207         gpio_request(gpio + 1, "EHCI_nOC");
 208         gpio_direction_input(gpio + 1);
 209
 210         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 211         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 212         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 213
 214         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 215         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 216
 217         return 0;
 218 }
 219
 220 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 221         .gpio_base      = OMAP_MAX_GPIO_LINES,
 222         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 223         .irq_end        = TWL4030_GPIO_IRQ_END,
 224         .use_leds       = true,
 225         .pullups        = BIT(1),
 226         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 227                                 | BIT(15) | BIT(16) | BIT(17),
 228         .setup          = beagle_twl_gpio_setup,
 229 };
 230
 231 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 232 static struct regulator_init_data beagle_vmmc1 = {
 233         .constraints = {
 234                 .min_uV                 = 1850000,
 235                 .max_uV                 = 3150000,
 236                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 237                                         | REGULATOR_MODE_STANDBY,
 238                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 239                                         | REGULATOR_CHANGE_MODE
 240                                         | REGULATOR_CHANGE_STATUS,
 241         },
 242         .num_consumer_supplies  = 1,
 243         .consumer_supplies      = &beagle_vmmc1_supply,
 244 };
 245
 246 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 247 static struct regulator_init_data beagle_vsim = {
 248         .constraints = {
 249                 .min_uV                 = 1800000,
 250                 .max_uV                 = 3000000,
 251                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 252                                         | REGULATOR_MODE_STANDBY,
 253                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 254                                         | REGULATOR_CHANGE_MODE
 255                                         | REGULATOR_CHANGE_STATUS,
 256         },
 257         .num_consumer_supplies  = 1,
 258         .consumer_supplies      = &beagle_vsim_supply,
 259 };
 260
 261 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 262 static struct regulator_init_data beagle_vdac = {
 263         .constraints = {
 264                 .min_uV                 = 1800000,
 265                 .max_uV                 = 1800000,
 266                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 267                                         | REGULATOR_MODE_STANDBY,
 268                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 269                                         | REGULATOR_CHANGE_STATUS,
 270         },
 271         .num_consumer_supplies  = 1,
 272         .consumer_supplies      = &beagle_vdac_supply,
 273 };
 274
 275 /* VPLL2 for digital video outputs */
 276 static struct regulator_init_data beagle_vpll2 = {
 277         .constraints = {
 278                 .name                   = "VDVI",
 279                 .min_uV                 = 1800000,
 280                 .max_uV                 = 1800000,
 281                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 282                                         | REGULATOR_MODE_STANDBY,
 283                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 284                                         | REGULATOR_CHANGE_STATUS,
 285         },
 286         .num_consumer_supplies  = 1,
 287         .consumer_supplies      = &beagle_vdvi_supply,
 288 };
 289
 290 static struct twl4030_usb_data beagle_usb_data = {
 291         .usb_mode       = T2_USB_MODE_ULPI,
 292 };
 293
 294 static struct twl4030_codec_audio_data beagle_audio_data = {
 295         .audio_mclk = 26000000,
 296 };
 297
 298 static struct twl4030_codec_data beagle_codec_data = {
 299         .audio_mclk = 26000000,
 300         .audio = &beagle_audio_data,
 301 };
 302
 303 static struct twl4030_platform_data beagle_twldata = {
 304         .irq_base       = TWL4030_IRQ_BASE,
 305         .irq_end        = TWL4030_IRQ_END,
 306
 307         /* platform_data for children goes here */
 308         .usb            = &beagle_usb_data,
 309         .gpio           = &beagle_gpio_data,
 310         .codec          = &beagle_codec_data,
 311         .vmmc1          = &beagle_vmmc1,
 312         .vsim           = &beagle_vsim,
 313         .vdac           = &beagle_vdac,
 314         .vpll2          = &beagle_vpll2,
 315 };
 316
 317 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 318         {
 319                 I2C_BOARD_INFO("twl4030", 0x48),
 320                 .flags = I2C_CLIENT_WAKE,
 321                 .irq = INT_34XX_SYS_NIRQ,
 322                 .platform_data = &beagle_twldata,
 323         },
 324 };
 325
 326 static int __init omap3_beagle_i2c_init(void)
 327 {
 328         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 329                         ARRAY_SIZE(beagle_i2c_boardinfo));
 330         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 331          * projector don't work reliably with 400kHz */
 332         omap_register_i2c_bus(3, 100, NULL, 0);
 333         return 0;
 334 }
 335
 336 static struct gpio_led gpio_leds[] = {
 337         {
 338                 .name                   = "beagleboard::usr0",
 339                 .default_trigger        = "heartbeat",
 340                 .gpio                   = 150,
 341         },
 342         {
 343                 .name                   = "beagleboard::usr1",
 344                 .default_trigger        = "mmc0",
 345                 .gpio                   = 149,
 346         },
 347         {
 348                 .name                   = "beagleboard::pmu_stat",
 349                 .gpio                   = -EINVAL,      /* gets replaced */
 350                 .active_low             = true,
 351         },
 352 };
 353
 354 static struct gpio_led_platform_data gpio_led_info = {
 355         .leds           = gpio_leds,
 356         .num_leds       = ARRAY_SIZE(gpio_leds),
 357 };
 358
 359 static struct platform_device leds_gpio = {
 360         .name   = "leds-gpio",
 361         .id     = -1,
 362         .dev    = {
 363                 .platform_data  = &gpio_led_info,
 364         },
 365 };
 366
 367 static struct gpio_keys_button gpio_buttons[] = {
 368         {
 369                 .code                   = BTN_EXTRA,
 370                 .gpio                   = 7,
 371                 .desc                   = "user",
 372                 .wakeup                 = 1,
 373         },
 374 };
 375
 376 static struct gpio_keys_platform_data gpio_key_info = {
 377         .buttons        = gpio_buttons,
 378         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 379 };
 380
 381 static struct platform_device keys_gpio = {
 382         .name   = "gpio-keys",
 383         .id     = -1,
 384         .dev    = {
 385                 .platform_data  = &gpio_key_info,
 386         },
 387 };
 388
 389 static void __init omap3_beagle_init_irq(void)
 390 {
 391         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 392                              mt46h32m32lf6_sdrc_params);
 393         omap_init_irq();
 394 #ifdef CONFIG_OMAP_32K_TIMER
 395         omap2_gp_clockevent_set_gptimer(12);
 396 #endif
 397         omap_gpio_init();
 398 }
 399
 400 static struct platform_device *omap3_beagle_devices[] __initdata = {
 401         &leds_gpio,
 402         &keys_gpio,
 403         &beagle_dss_device,
 404 };
 405
 406 static void __init omap3beagle_flash_init(void)
 407 {
 408         u8 cs = 0;
 409         u8 nandcs = GPMC_CS_NUM + 1;
 410
 411         /* find out the chip-select on which NAND exists */
 412         while (cs < GPMC_CS_NUM) {
 413                 u32 ret = 0;
 414                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 415
 416                 if ((ret & 0xC00) == 0x800) {
 417                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 418                         if (nandcs > GPMC_CS_NUM)
 419                                 nandcs = cs;
 420                 }
 421                 cs++;
 422         }
 423
 424         if (nandcs > GPMC_CS_NUM) {
 425                 printk(KERN_INFO "NAND: Unable to find configuration "
 426                                  "in GPMC\n ");
 427                 return;
 428         }
 429
 430         if (nandcs < GPMC_CS_NUM) {
 431                 omap3beagle_nand_data.cs = nandcs;
 432
 433                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 434                 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
 435                         printk(KERN_ERR "Unable to register NAND device\n");
 436         }
 437 }
 438
 439 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 440
 441         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 442         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 443         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 444
 445         .phy_reset  = true,
 446         .reset_gpio_port[0]  = -EINVAL,
 447         .reset_gpio_port[1]  = 147,
 448         .reset_gpio_port[2]  = -EINVAL
 449 };
 450
 451 #ifdef CONFIG_OMAP_MUX
 452 static struct omap_board_mux board_mux[] __initdata = {
 453         { .reg_offset = OMAP_MUX_TERMINATOR },
 454 };
 455 #else
 456 #define board_mux       NULL
 457 #endif
 458
 459 static struct omap_musb_board_data musb_board_data = {
 460         .interface_type         = MUSB_INTERFACE_ULPI,
 461         .mode                   = MUSB_OTG,
 462         .power                  = 100,
 463 };
 464
 465 static void __init omap3_beagle_init(void)
 466 {
 467         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 468         omap3_beagle_i2c_init();
 469         platform_add_devices(omap3_beagle_devices,
 470                         ARRAY_SIZE(omap3_beagle_devices));
 471         omap_serial_init();
 472
 473         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
 474         gpio_request(170, "DVI_nPD");
 475         /* REVISIT leave DVI powered down until it's needed ... */
 476         gpio_direction_output(170, true);
 477
 478         usb_musb_init(&musb_board_data);
 479         usb_ehci_init(&ehci_pdata);
 480         omap3beagle_flash_init();
 481
 482         /* Ensure SDRC pins are mux'd for self-refresh */
 483         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 484         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 485
 486         beagle_display_init();
 487 }
 488
 489 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 490         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 491         .phys_io        = 0x48000000,
 492         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 493         .boot_params    = 0x80000100,
 494         .map_io         = omap3_map_io,
 495         .reserve        = omap_reserve,
 496         .init_irq       = omap3_beagle_init_irq,
 497         .init_machine   = omap3_beagle_init,
 498         .timer          = &omap_timer,
 499 MACHINE_END