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 GPMC_CS0_BASE  0x60
  52 #define GPMC_CS_SIZE   0x30
  53
  54 #define NAND_BLOCK_SIZE         SZ_128K
  55
  56 static struct mtd_partition omap3beagle_nand_partitions[] = {
  57         /* All the partition sizes are listed in terms of NAND block size */
  58         {
  59                 .name           = "X-Loader",
  60                 .offset         = 0,
  61                 .size           = 4 * NAND_BLOCK_SIZE,
  62                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  63         },
  64         {
  65                 .name           = "U-Boot",
  66                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  67                 .size           = 15 * NAND_BLOCK_SIZE,
  68                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  69         },
  70         {
  71                 .name           = "U-Boot Env",
  72                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  73                 .size           = 1 * NAND_BLOCK_SIZE,
  74         },
  75         {
  76                 .name           = "Kernel",
  77                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  78                 .size           = 32 * NAND_BLOCK_SIZE,
  79         },
  80         {
  81                 .name           = "File System",
  82                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  83                 .size           = MTDPART_SIZ_FULL,
  84         },
  85 };
  86
  87 static struct omap_nand_platform_data omap3beagle_nand_data = {
  88         .options        = NAND_BUSWIDTH_16,
  89         .parts          = omap3beagle_nand_partitions,
  90         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  91         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  92         .nand_setup     = NULL,
  93         .dev_ready      = NULL,
  94 };
  95
  96 static struct resource omap3beagle_nand_resource = {
  97         .flags          = IORESOURCE_MEM,
  98 };
  99
 100 static struct platform_device omap3beagle_nand_device = {
 101         .name           = "omap2-nand",
 102         .id             = -1,
 103         .dev            = {
 104                 .platform_data  = &omap3beagle_nand_data,
 105         },
 106         .num_resources  = 1,
 107         .resource       = &omap3beagle_nand_resource,
 108 };
 109
 110 /* DSS */
 111
 112 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
 113 {
 114         if (gpio_is_valid(dssdev->reset_gpio))
 115                 gpio_set_value(dssdev->reset_gpio, 1);
 116
 117         return 0;
 118 }
 119
 120 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
 121 {
 122         if (gpio_is_valid(dssdev->reset_gpio))
 123                 gpio_set_value(dssdev->reset_gpio, 0);
 124 }
 125
 126 static struct omap_dss_device beagle_dvi_device = {
 127         .type = OMAP_DISPLAY_TYPE_DPI,
 128         .name = "dvi",
 129         .driver_name = "generic_panel",
 130         .phy.dpi.data_lines = 24,
 131         .reset_gpio = 170,
 132         .platform_enable = beagle_enable_dvi,
 133         .platform_disable = beagle_disable_dvi,
 134 };
 135
 136 static struct omap_dss_device beagle_tv_device = {
 137         .name = "tv",
 138         .driver_name = "venc",
 139         .type = OMAP_DISPLAY_TYPE_VENC,
 140         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 141 };
 142
 143 static struct omap_dss_device *beagle_dss_devices[] = {
 144         &beagle_dvi_device,
 145         &beagle_tv_device,
 146 };
 147
 148 static struct omap_dss_board_info beagle_dss_data = {
 149         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 150         .devices = beagle_dss_devices,
 151         .default_device = &beagle_dvi_device,
 152 };
 153
 154 static struct platform_device beagle_dss_device = {
 155         .name          = "omapdss",
 156         .id            = -1,
 157         .dev            = {
 158                 .platform_data = &beagle_dss_data,
 159         },
 160 };
 161
 162 static struct regulator_consumer_supply beagle_vdac_supply =
 163         REGULATOR_SUPPLY("vdda_dac", "omapdss");
 164
 165 static struct regulator_consumer_supply beagle_vdvi_supply =
 166         REGULATOR_SUPPLY("vdds_dsi", "omapdss");
 167
 168 static void __init beagle_display_init(void)
 169 {
 170         int r;
 171
 172         r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
 173         if (r < 0) {
 174                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 175                 return;
 176         }
 177
 178         gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
 179 }
 180
 181 #include "sdram-micron-mt46h32m32lf-6.h"
 182
 183 static struct omap2_hsmmc_info mmc[] = {
 184         {
 185                 .mmc            = 1,
 186                 .wires          = 8,
 187                 .gpio_wp        = 29,
 188         },
 189         {}      /* Terminator */
 190 };
 191
 192 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 193         .supply                 = "vmmc",
 194 };
 195
 196 static struct regulator_consumer_supply beagle_vsim_supply = {
 197         .supply                 = "vmmc_aux",
 198 };
 199
 200 static struct gpio_led gpio_leds[];
 201
 202 static int beagle_twl_gpio_setup(struct device *dev,
 203                 unsigned gpio, unsigned ngpio)
 204 {
 205         if (system_rev >= 0x20 && system_rev <= 0x34301000) {
 206                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 207                 mmc[0].gpio_wp = 23;
 208         } else {
 209                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
 210         }
 211         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 212         mmc[0].gpio_cd = gpio + 0;
 213         omap2_hsmmc_init(mmc);
 214
 215         /* link regulators to MMC adapters */
 216         beagle_vmmc1_supply.dev = mmc[0].dev;
 217         beagle_vsim_supply.dev = mmc[0].dev;
 218
 219         /* REVISIT: need ehci-omap hooks for external VBUS
 220          * power switch and overcurrent detect
 221          */
 222
 223         gpio_request(gpio + 1, "EHCI_nOC");
 224         gpio_direction_input(gpio + 1);
 225
 226         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 227         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 228         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 229
 230         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 231         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 232
 233         return 0;
 234 }
 235
 236 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 237         .gpio_base      = OMAP_MAX_GPIO_LINES,
 238         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 239         .irq_end        = TWL4030_GPIO_IRQ_END,
 240         .use_leds       = true,
 241         .pullups        = BIT(1),
 242         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 243                                 | BIT(15) | BIT(16) | BIT(17),
 244         .setup          = beagle_twl_gpio_setup,
 245 };
 246
 247 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 248 static struct regulator_init_data beagle_vmmc1 = {
 249         .constraints = {
 250                 .min_uV                 = 1850000,
 251                 .max_uV                 = 3150000,
 252                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 253                                         | REGULATOR_MODE_STANDBY,
 254                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 255                                         | REGULATOR_CHANGE_MODE
 256                                         | REGULATOR_CHANGE_STATUS,
 257         },
 258         .num_consumer_supplies  = 1,
 259         .consumer_supplies      = &beagle_vmmc1_supply,
 260 };
 261
 262 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 263 static struct regulator_init_data beagle_vsim = {
 264         .constraints = {
 265                 .min_uV                 = 1800000,
 266                 .max_uV                 = 3000000,
 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      = &beagle_vsim_supply,
 275 };
 276
 277 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 278 static struct regulator_init_data beagle_vdac = {
 279         .constraints = {
 280                 .min_uV                 = 1800000,
 281                 .max_uV                 = 1800000,
 282                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 283                                         | REGULATOR_MODE_STANDBY,
 284                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 285                                         | REGULATOR_CHANGE_STATUS,
 286         },
 287         .num_consumer_supplies  = 1,
 288         .consumer_supplies      = &beagle_vdac_supply,
 289 };
 290
 291 /* VPLL2 for digital video outputs */
 292 static struct regulator_init_data beagle_vpll2 = {
 293         .constraints = {
 294                 .name                   = "VDVI",
 295                 .min_uV                 = 1800000,
 296                 .max_uV                 = 1800000,
 297                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 298                                         | REGULATOR_MODE_STANDBY,
 299                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 300                                         | REGULATOR_CHANGE_STATUS,
 301         },
 302         .num_consumer_supplies  = 1,
 303         .consumer_supplies      = &beagle_vdvi_supply,
 304 };
 305
 306 static struct twl4030_usb_data beagle_usb_data = {
 307         .usb_mode       = T2_USB_MODE_ULPI,
 308 };
 309
 310 static struct twl4030_codec_audio_data beagle_audio_data = {
 311         .audio_mclk = 26000000,
 312 };
 313
 314 static struct twl4030_codec_data beagle_codec_data = {
 315         .audio_mclk = 26000000,
 316         .audio = &beagle_audio_data,
 317 };
 318
 319 static struct twl4030_platform_data beagle_twldata = {
 320         .irq_base       = TWL4030_IRQ_BASE,
 321         .irq_end        = TWL4030_IRQ_END,
 322
 323         /* platform_data for children goes here */
 324         .usb            = &beagle_usb_data,
 325         .gpio           = &beagle_gpio_data,
 326         .codec          = &beagle_codec_data,
 327         .vmmc1          = &beagle_vmmc1,
 328         .vsim           = &beagle_vsim,
 329         .vdac           = &beagle_vdac,
 330         .vpll2          = &beagle_vpll2,
 331 };
 332
 333 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 334         {
 335                 I2C_BOARD_INFO("twl4030", 0x48),
 336                 .flags = I2C_CLIENT_WAKE,
 337                 .irq = INT_34XX_SYS_NIRQ,
 338                 .platform_data = &beagle_twldata,
 339         },
 340 };
 341
 342 static int __init omap3_beagle_i2c_init(void)
 343 {
 344         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 345                         ARRAY_SIZE(beagle_i2c_boardinfo));
 346         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 347          * projector don't work reliably with 400kHz */
 348         omap_register_i2c_bus(3, 100, NULL, 0);
 349         return 0;
 350 }
 351
 352 static struct gpio_led gpio_leds[] = {
 353         {
 354                 .name                   = "beagleboard::usr0",
 355                 .default_trigger        = "heartbeat",
 356                 .gpio                   = 150,
 357         },
 358         {
 359                 .name                   = "beagleboard::usr1",
 360                 .default_trigger        = "mmc0",
 361                 .gpio                   = 149,
 362         },
 363         {
 364                 .name                   = "beagleboard::pmu_stat",
 365                 .gpio                   = -EINVAL,      /* gets replaced */
 366                 .active_low             = true,
 367         },
 368 };
 369
 370 static struct gpio_led_platform_data gpio_led_info = {
 371         .leds           = gpio_leds,
 372         .num_leds       = ARRAY_SIZE(gpio_leds),
 373 };
 374
 375 static struct platform_device leds_gpio = {
 376         .name   = "leds-gpio",
 377         .id     = -1,
 378         .dev    = {
 379                 .platform_data  = &gpio_led_info,
 380         },
 381 };
 382
 383 static struct gpio_keys_button gpio_buttons[] = {
 384         {
 385                 .code                   = BTN_EXTRA,
 386                 .gpio                   = 7,
 387                 .desc                   = "user",
 388                 .wakeup                 = 1,
 389         },
 390 };
 391
 392 static struct gpio_keys_platform_data gpio_key_info = {
 393         .buttons        = gpio_buttons,
 394         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 395 };
 396
 397 static struct platform_device keys_gpio = {
 398         .name   = "gpio-keys",
 399         .id     = -1,
 400         .dev    = {
 401                 .platform_data  = &gpio_key_info,
 402         },
 403 };
 404
 405 static void __init omap3_beagle_init_irq(void)
 406 {
 407         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 408                              mt46h32m32lf6_sdrc_params);
 409         omap_init_irq();
 410 #ifdef CONFIG_OMAP_32K_TIMER
 411         omap2_gp_clockevent_set_gptimer(12);
 412 #endif
 413         omap_gpio_init();
 414 }
 415
 416 static struct platform_device *omap3_beagle_devices[] __initdata = {
 417         &leds_gpio,
 418         &keys_gpio,
 419         &beagle_dss_device,
 420 };
 421
 422 static void __init omap3beagle_flash_init(void)
 423 {
 424         u8 cs = 0;
 425         u8 nandcs = GPMC_CS_NUM + 1;
 426
 427         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 428
 429         /* find out the chip-select on which NAND exists */
 430         while (cs < GPMC_CS_NUM) {
 431                 u32 ret = 0;
 432                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 433
 434                 if ((ret & 0xC00) == 0x800) {
 435                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 436                         if (nandcs > GPMC_CS_NUM)
 437                                 nandcs = cs;
 438                 }
 439                 cs++;
 440         }
 441
 442         if (nandcs > GPMC_CS_NUM) {
 443                 printk(KERN_INFO "NAND: Unable to find configuration "
 444                                  "in GPMC\n ");
 445                 return;
 446         }
 447
 448         if (nandcs < GPMC_CS_NUM) {
 449                 omap3beagle_nand_data.cs = nandcs;
 450                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 451                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 452                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 453
 454                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 455                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 456                         printk(KERN_ERR "Unable to register NAND device\n");
 457         }
 458 }
 459
 460 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 461
 462         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 463         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 464         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 465
 466         .phy_reset  = true,
 467         .reset_gpio_port[0]  = -EINVAL,
 468         .reset_gpio_port[1]  = 147,
 469         .reset_gpio_port[2]  = -EINVAL
 470 };
 471
 472 #ifdef CONFIG_OMAP_MUX
 473 static struct omap_board_mux board_mux[] __initdata = {
 474         { .reg_offset = OMAP_MUX_TERMINATOR },
 475 };
 476 #else
 477 #define board_mux       NULL
 478 #endif
 479
 480 static struct omap_musb_board_data musb_board_data = {
 481         .interface_type         = MUSB_INTERFACE_ULPI,
 482         .mode                   = MUSB_OTG,
 483         .power                  = 100,
 484 };
 485
 486 static void __init omap3_beagle_init(void)
 487 {
 488         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 489         omap3_beagle_i2c_init();
 490         platform_add_devices(omap3_beagle_devices,
 491                         ARRAY_SIZE(omap3_beagle_devices));
 492         omap_serial_init();
 493
 494         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
 495         gpio_request(170, "DVI_nPD");
 496         /* REVISIT leave DVI powered down until it's needed ... */
 497         gpio_direction_output(170, true);
 498
 499         usb_musb_init(&musb_board_data);
 500         usb_ehci_init(&ehci_pdata);
 501         omap3beagle_flash_init();
 502
 503         /* Ensure SDRC pins are mux'd for self-refresh */
 504         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 505         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 506
 507         beagle_display_init();
 508 }
 509
 510 static void __init omap3_beagle_map_io(void)
 511 {
 512         omap2_set_globals_343x();
 513         omap34xx_map_common_io();
 514 }
 515
 516 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 517         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 518         .phys_io        = 0x48000000,
 519         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 520         .boot_params    = 0x80000100,
 521         .map_io         = omap3_beagle_map_io,
 522         .init_irq       = omap3_beagle_init_irq,
 523         .init_machine   = omap3_beagle_init,
 524         .timer          = &omap_timer,
 525 MACHINE_END