arch/arm/mach-at91/board-sam9261ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9261ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/mm.h>
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ads7846.h>
  29 #include <linux/spi/at73c213.h>
  30 #include <linux/clk.h>
  31 #include <linux/dm9000.h>
  32 #include <linux/fb.h>
  33 #include <linux/gpio_keys.h>
  34 #include <linux/input.h>
  35
  36 #include <video/atmel_lcdc.h>
  37
  38 #include <asm/setup.h>
  39 #include <asm/mach-types.h>
  40 #include <asm/irq.h>
  41
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45
  46 #include <mach/hardware.h>
  47 #include <mach/board.h>
  48 #include <mach/gpio.h>
  49 #include <mach/at91sam9_smc.h>
  50 #include <mach/at91_shdwc.h>
  51
  52 #include "sam9_smc.h"
  53 #include "generic.h"
  54
  55
  56 static void __init ek_map_io(void)
  57 {
  58         /* Initialize processor: 18.432 MHz crystal */
  59         at91sam9261_initialize(18432000);
  60
  61         /* Setup the LEDs */
  62         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
  63
  64         /* DGBU on ttyS0. (Rx & Tx only) */
  65         at91_register_uart(0, 0, 0);
  66
  67         /* set serial console to ttyS0 (ie, DBGU) */
  68         at91_set_serial_console(0);
  69 }
  70
  71 static void __init ek_init_irq(void)
  72 {
  73         at91sam9261_init_interrupts(NULL);
  74 }
  75
  76
  77 /*
  78  * DM9000 ethernet device
  79  */
  80 #if defined(CONFIG_DM9000)
  81 static struct resource dm9000_resource[] = {
  82         [0] = {
  83                 .start  = AT91_CHIPSELECT_2,
  84                 .end    = AT91_CHIPSELECT_2 + 3,
  85                 .flags  = IORESOURCE_MEM
  86         },
  87         [1] = {
  88                 .start  = AT91_CHIPSELECT_2 + 0x44,
  89                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  90                 .flags  = IORESOURCE_MEM
  91         },
  92         [2] = {
  93                 .start  = AT91_PIN_PC11,
  94                 .end    = AT91_PIN_PC11,
  95                 .flags  = IORESOURCE_IRQ
  96         }
  97 };
  98
  99 static struct dm9000_plat_data dm9000_platdata = {
 100         .flags          = DM9000_PLATF_16BITONLY,
 101 };
 102
 103 static struct platform_device dm9000_device = {
 104         .name           = "dm9000",
 105         .id             = 0,
 106         .num_resources  = ARRAY_SIZE(dm9000_resource),
 107         .resource       = dm9000_resource,
 108         .dev            = {
 109                 .platform_data  = &dm9000_platdata,
 110         }
 111 };
 112
 113 /*
 114  * SMC timings for the DM9000.
 115  * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
 116  */
 117 static struct sam9_smc_config __initdata dm9000_smc_config = {
 118         .ncs_read_setup         = 0,
 119         .nrd_setup              = 2,
 120         .ncs_write_setup        = 0,
 121         .nwe_setup              = 2,
 122
 123         .ncs_read_pulse         = 8,
 124         .nrd_pulse              = 4,
 125         .ncs_write_pulse        = 8,
 126         .nwe_pulse              = 4,
 127
 128         .read_cycle             = 16,
 129         .write_cycle            = 16,
 130
 131         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
 132         .tdf_cycles             = 1,
 133 };
 134
 135 static void __init ek_add_device_dm9000(void)
 136 {
 137         /* Configure chip-select 2 (DM9000) */
 138         sam9_smc_configure(2, &dm9000_smc_config);
 139
 140         /* Configure Reset signal as output */
 141         at91_set_gpio_output(AT91_PIN_PC10, 0);
 142
 143         /* Configure Interrupt pin as input, no pull-up */
 144         at91_set_gpio_input(AT91_PIN_PC11, 0);
 145
 146         platform_device_register(&dm9000_device);
 147 }
 148 #else
 149 static void __init ek_add_device_dm9000(void) {}
 150 #endif /* CONFIG_DM9000 */
 151
 152
 153 /*
 154  * USB Host Port
 155  */
 156 static struct at91_usbh_data __initdata ek_usbh_data = {
 157         .ports          = 2,
 158 };
 159
 160
 161 /*
 162  * USB Device Port
 163  */
 164 static struct at91_udc_data __initdata ek_udc_data = {
 165         .vbus_pin       = AT91_PIN_PB29,
 166         .pullup_pin     = 0,            /* pull-up driven by UDC */
 167 };
 168
 169
 170 /*
 171  * MCI (SD/MMC)
 172  */
 173 static struct at91_mmc_data __initdata ek_mmc_data = {
 174         .wire4          = 1,
 175 //      .det_pin        = ... not connected
 176 //      .wp_pin         = ... not connected
 177 //      .vcc_pin        = ... not connected
 178 };
 179
 180
 181 /*
 182  * NAND flash
 183  */
 184 static struct mtd_partition __initdata ek_nand_partition[] = {
 185         {
 186                 .name   = "Partition 1",
 187                 .offset = 0,
 188                 .size   = SZ_256K,
 189         },
 190         {
 191                 .name   = "Partition 2",
 192                 .offset = MTDPART_OFS_NXTBLK,
 193                 .size   = MTDPART_SIZ_FULL,
 194         },
 195 };
 196
 197 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 198 {
 199         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 200         return ek_nand_partition;
 201 }
 202
 203 static struct atmel_nand_data __initdata ek_nand_data = {
 204         .ale            = 22,
 205         .cle            = 21,
 206 //      .det_pin        = ... not connected
 207         .rdy_pin        = AT91_PIN_PC15,
 208         .enable_pin     = AT91_PIN_PC14,
 209         .partition_info = nand_partitions,
 210 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 211         .bus_width_16   = 1,
 212 #else
 213         .bus_width_16   = 0,
 214 #endif
 215 };
 216
 217 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 218         .ncs_read_setup         = 0,
 219         .nrd_setup              = 1,
 220         .ncs_write_setup        = 0,
 221         .nwe_setup              = 1,
 222
 223         .ncs_read_pulse         = 3,
 224         .nrd_pulse              = 3,
 225         .ncs_write_pulse        = 3,
 226         .nwe_pulse              = 3,
 227
 228         .read_cycle             = 5,
 229         .write_cycle            = 5,
 230
 231         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 232         .tdf_cycles             = 2,
 233 };
 234
 235 static void __init ek_add_device_nand(void)
 236 {
 237         /* setup bus-width (8 or 16) */
 238         if (ek_nand_data.bus_width_16)
 239                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 240         else
 241                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 242
 243         /* configure chip-select 3 (NAND) */
 244         sam9_smc_configure(3, &ek_nand_smc_config);
 245
 246         at91_add_device_nand(&ek_nand_data);
 247 }
 248
 249
 250 /*
 251  * ADS7846 Touchscreen
 252  */
 253 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 254
 255 static int ads7843_pendown_state(void)
 256 {
 257         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 258 }
 259
 260 static struct ads7846_platform_data ads_info = {
 261         .model                  = 7843,
 262         .x_min                  = 150,
 263         .x_max                  = 3830,
 264         .y_min                  = 190,
 265         .y_max                  = 3830,
 266         .vref_delay_usecs       = 100,
 267         .x_plate_ohms           = 450,
 268         .y_plate_ohms           = 250,
 269         .pressure_max           = 15000,
 270         .debounce_max           = 1,
 271         .debounce_rep           = 0,
 272         .debounce_tol           = (~0),
 273         .get_pendown_state      = ads7843_pendown_state,
 274 };
 275
 276 static void __init ek_add_device_ts(void)
 277 {
 278         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 279         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 280 }
 281 #else
 282 static void __init ek_add_device_ts(void) {}
 283 #endif
 284
 285 /*
 286  * Audio
 287  */
 288 static struct at73c213_board_info at73c213_data = {
 289         .ssc_id         = 1,
 290         .shortname      = "AT91SAM9261-EK external DAC",
 291 };
 292
 293 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 294 static void __init at73c213_set_clk(struct at73c213_board_info *info)
 295 {
 296         struct clk *pck2;
 297         struct clk *plla;
 298
 299         pck2 = clk_get(NULL, "pck2");
 300         plla = clk_get(NULL, "plla");
 301
 302         /* AT73C213 MCK Clock */
 303         at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
 304
 305         clk_set_parent(pck2, plla);
 306         clk_put(plla);
 307
 308         info->dac_clk = pck2;
 309 }
 310 #else
 311 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 312 #endif
 313
 314 /*
 315  * SPI devices
 316  */
 317 static struct spi_board_info ek_spi_devices[] = {
 318         {       /* DataFlash chip */
 319                 .modalias       = "mtd_dataflash",
 320                 .chip_select    = 0,
 321                 .max_speed_hz   = 15 * 1000 * 1000,
 322                 .bus_num        = 0,
 323         },
 324 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 325         {
 326                 .modalias       = "ads7846",
 327                 .chip_select    = 2,
 328                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 329                 .bus_num        = 0,
 330                 .platform_data  = &ads_info,
 331                 .irq            = AT91SAM9261_ID_IRQ0,
 332                 .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
 333         },
 334 #endif
 335 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 336         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 337                 .modalias       = "mtd_dataflash",
 338                 .chip_select    = 3,
 339                 .max_speed_hz   = 15 * 1000 * 1000,
 340                 .bus_num        = 0,
 341         },
 342 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 343         {       /* AT73C213 DAC */
 344                 .modalias       = "at73c213",
 345                 .chip_select    = 3,
 346                 .max_speed_hz   = 10 * 1000 * 1000,
 347                 .bus_num        = 0,
 348                 .mode           = SPI_MODE_1,
 349                 .platform_data  = &at73c213_data,
 350                 .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
 351         },
 352 #endif
 353 };
 354
 355
 356 /*
 357  * LCD Controller
 358  */
 359 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 360
 361 #if defined(CONFIG_FB_ATMEL_STN)
 362
 363 /* STN */
 364 static struct fb_videomode at91_stn_modes[] = {
 365         {
 366                 .name           = "SP06Q002 @ 75",
 367                 .refresh        = 75,
 368                 .xres           = 320,          .yres           = 240,
 369                 .pixclock       = KHZ2PICOS(1440),
 370
 371                 .left_margin    = 1,            .right_margin   = 1,
 372                 .upper_margin   = 0,            .lower_margin   = 0,
 373                 .hsync_len      = 1,            .vsync_len      = 1,
 374
 375                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 376                 .vmode          = FB_VMODE_NONINTERLACED,
 377         },
 378 };
 379
 380 static struct fb_monspecs at91fb_default_stn_monspecs = {
 381         .manufacturer   = "HIT",
 382         .monitor        = "SP06Q002",
 383
 384         .modedb         = at91_stn_modes,
 385         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
 386         .hfmin          = 15000,
 387         .hfmax          = 64000,
 388         .vfmin          = 50,
 389         .vfmax          = 150,
 390 };
 391
 392 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 393                                         | ATMEL_LCDC_DISTYPE_STNMONO \
 394                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
 395                                         | ATMEL_LCDC_IFWIDTH_4 \
 396                                         | ATMEL_LCDC_SCANMOD_SINGLE)
 397
 398 static void at91_lcdc_stn_power_control(int on)
 399 {
 400         /* backlight */
 401         if (on) {       /* power up */
 402                 at91_set_gpio_value(AT91_PIN_PC14, 0);
 403                 at91_set_gpio_value(AT91_PIN_PC15, 0);
 404         } else {        /* power down */
 405                 at91_set_gpio_value(AT91_PIN_PC14, 1);
 406                 at91_set_gpio_value(AT91_PIN_PC15, 1);
 407         }
 408 }
 409
 410 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 411         .default_bpp                    = 1,
 412         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 413         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
 414         .default_monspecs               = &at91fb_default_stn_monspecs,
 415         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
 416         .guard_time                     = 1,
 417 };
 418
 419 #else
 420
 421 /* TFT */
 422 static struct fb_videomode at91_tft_vga_modes[] = {
 423         {
 424                 .name           = "TX09D50VM1CCA @ 60",
 425                 .refresh        = 60,
 426                 .xres           = 240,          .yres           = 320,
 427                 .pixclock       = KHZ2PICOS(4965),
 428
 429                 .left_margin    = 1,            .right_margin   = 33,
 430                 .upper_margin   = 1,            .lower_margin   = 0,
 431                 .hsync_len      = 5,            .vsync_len      = 1,
 432
 433                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 434                 .vmode          = FB_VMODE_NONINTERLACED,
 435         },
 436 };
 437
 438 static struct fb_monspecs at91fb_default_tft_monspecs = {
 439         .manufacturer   = "HIT",
 440         .monitor        = "TX09D50VM1CCA",
 441
 442         .modedb         = at91_tft_vga_modes,
 443         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 444         .hfmin          = 15000,
 445         .hfmax          = 64000,
 446         .vfmin          = 50,
 447         .vfmax          = 150,
 448 };
 449
 450 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 451                                         | ATMEL_LCDC_DISTYPE_TFT    \
 452                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 453
 454 static void at91_lcdc_tft_power_control(int on)
 455 {
 456         if (on)
 457                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 458         else
 459                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 460 }
 461
 462 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 463         .lcdcon_is_backlight            = true,
 464         .default_bpp                    = 16,
 465         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 466         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
 467         .default_monspecs               = &at91fb_default_tft_monspecs,
 468         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
 469         .guard_time                     = 1,
 470 };
 471 #endif
 472
 473 #else
 474 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 475 #endif
 476
 477
 478 /*
 479  * GPIO Buttons
 480  */
 481 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 482 static struct gpio_keys_button ek_buttons[] = {
 483         {
 484                 .gpio           = AT91_PIN_PA27,
 485                 .code           = BTN_0,
 486                 .desc           = "Button 0",
 487                 .active_low     = 1,
 488                 .wakeup         = 1,
 489         },
 490         {
 491                 .gpio           = AT91_PIN_PA26,
 492                 .code           = BTN_1,
 493                 .desc           = "Button 1",
 494                 .active_low     = 1,
 495                 .wakeup         = 1,
 496         },
 497         {
 498                 .gpio           = AT91_PIN_PA25,
 499                 .code           = BTN_2,
 500                 .desc           = "Button 2",
 501                 .active_low     = 1,
 502                 .wakeup         = 1,
 503         },
 504         {
 505                 .gpio           = AT91_PIN_PA24,
 506                 .code           = BTN_3,
 507                 .desc           = "Button 3",
 508                 .active_low     = 1,
 509                 .wakeup         = 1,
 510         }
 511 };
 512
 513 static struct gpio_keys_platform_data ek_button_data = {
 514         .buttons        = ek_buttons,
 515         .nbuttons       = ARRAY_SIZE(ek_buttons),
 516 };
 517
 518 static struct platform_device ek_button_device = {
 519         .name           = "gpio-keys",
 520         .id             = -1,
 521         .num_resources  = 0,
 522         .dev            = {
 523                 .platform_data  = &ek_button_data,
 524         }
 525 };
 526
 527 static void __init ek_add_device_buttons(void)
 528 {
 529         at91_set_gpio_input(AT91_PIN_PA27, 1);  /* btn0 */
 530         at91_set_deglitch(AT91_PIN_PA27, 1);
 531         at91_set_gpio_input(AT91_PIN_PA26, 1);  /* btn1 */
 532         at91_set_deglitch(AT91_PIN_PA26, 1);
 533         at91_set_gpio_input(AT91_PIN_PA25, 1);  /* btn2 */
 534         at91_set_deglitch(AT91_PIN_PA25, 1);
 535         at91_set_gpio_input(AT91_PIN_PA24, 1);  /* btn3 */
 536         at91_set_deglitch(AT91_PIN_PA24, 1);
 537
 538         platform_device_register(&ek_button_device);
 539 }
 540 #else
 541 static void __init ek_add_device_buttons(void) {}
 542 #endif
 543
 544 /*
 545  * LEDs
 546  */
 547 static struct gpio_led ek_leds[] = {
 548         {       /* "bottom" led, green, userled1 to be defined */
 549                 .name                   = "ds7",
 550                 .gpio                   = AT91_PIN_PA14,
 551                 .active_low             = 1,
 552                 .default_trigger        = "none",
 553         },
 554         {       /* "top" led, green, userled2 to be defined */
 555                 .name                   = "ds8",
 556                 .gpio                   = AT91_PIN_PA13,
 557                 .active_low             = 1,
 558                 .default_trigger        = "none",
 559         },
 560         {       /* "power" led, yellow */
 561                 .name                   = "ds1",
 562                 .gpio                   = AT91_PIN_PA23,
 563                 .default_trigger        = "heartbeat",
 564         }
 565 };
 566
 567 static void __init ek_board_init(void)
 568 {
 569         /* Serial */
 570         at91_add_device_serial();
 571         /* USB Host */
 572         at91_add_device_usbh(&ek_usbh_data);
 573         /* USB Device */
 574         at91_add_device_udc(&ek_udc_data);
 575         /* I2C */
 576         at91_add_device_i2c(NULL, 0);
 577         /* NAND */
 578         ek_add_device_nand();
 579         /* DM9000 ethernet */
 580         ek_add_device_dm9000();
 581
 582         /* spi0 and mmc/sd share the same PIO pins */
 583 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 584         /* SPI */
 585         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 586         /* Touchscreen */
 587         ek_add_device_ts();
 588         /* SSC (to AT73C213) */
 589         at73c213_set_clk(&at73c213_data);
 590         at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
 591 #else
 592         /* MMC */
 593         at91_add_device_mmc(0, &ek_mmc_data);
 594 #endif
 595         /* LCD Controller */
 596         at91_add_device_lcdc(&ek_lcdc_data);
 597         /* Push Buttons */
 598         ek_add_device_buttons();
 599         /* LEDs */
 600         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 601 }
 602
 603 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 604         /* Maintainer: Atmel */
 605         .phys_io        = AT91_BASE_SYS,
 606         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 607         .boot_params    = AT91_SDRAM_BASE + 0x100,
 608         .timer          = &at91sam926x_timer,
 609         .map_io         = ek_map_io,
 610         .init_irq       = ek_init_irq,
 611         .init_machine   = ek_board_init,
 612 MACHINE_END