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   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 <mach/hardware.h>
  39 #include <asm/setup.h>
  40 #include <asm/mach-types.h>
  41 #include <asm/irq.h>
  42
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46
  47 #include <mach/board.h>
  48 #include <mach/gpio.h>
  49 #include <mach/at91sam9_smc.h>
  50
  51 #include "generic.h"
  52
  53
  54 static void __init ek_map_io(void)
  55 {
  56         /* Initialize processor: 18.432 MHz crystal */
  57         at91sam9261_initialize(18432000);
  58
  59         /* Setup the LEDs */
  60         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
  61
  62         /* DGBU on ttyS0. (Rx & Tx only) */
  63         at91_register_uart(0, 0, 0);
  64
  65         /* set serial console to ttyS0 (ie, DBGU) */
  66         at91_set_serial_console(0);
  67 }
  68
  69 static void __init ek_init_irq(void)
  70 {
  71         at91sam9261_init_interrupts(NULL);
  72 }
  73
  74
  75 /*
  76  * DM9000 ethernet device
  77  */
  78 #if defined(CONFIG_DM9000)
  79 static struct resource at91sam9261_dm9000_resource[] = {
  80         [0] = {
  81                 .start  = AT91_CHIPSELECT_2,
  82                 .end    = AT91_CHIPSELECT_2 + 3,
  83                 .flags  = IORESOURCE_MEM
  84         },
  85         [1] = {
  86                 .start  = AT91_CHIPSELECT_2 + 0x44,
  87                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  88                 .flags  = IORESOURCE_MEM
  89         },
  90         [2] = {
  91                 .start  = AT91_PIN_PC11,
  92                 .end    = AT91_PIN_PC11,
  93                 .flags  = IORESOURCE_IRQ
  94         }
  95 };
  96
  97 static struct dm9000_plat_data dm9000_platdata = {
  98         .flags          = DM9000_PLATF_16BITONLY,
  99 };
 100
 101 static struct platform_device at91sam9261_dm9000_device = {
 102         .name           = "dm9000",
 103         .id             = 0,
 104         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
 105         .resource       = at91sam9261_dm9000_resource,
 106         .dev            = {
 107                 .platform_data  = &dm9000_platdata,
 108         }
 109 };
 110
 111 static void __init ek_add_device_dm9000(void)
 112 {
 113         /*
 114          * Configure Chip-Select 2 on SMC for the DM9000.
 115          * Note: These timings were calculated for MASTER_CLOCK = 100000000
 116          *  according to the DM9000 timings.
 117          */
 118         at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
 119         at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
 120         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 121         at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
 122
 123         /* Configure Reset signal as output */
 124         at91_set_gpio_output(AT91_PIN_PC10, 0);
 125
 126         /* Configure Interrupt pin as input, no pull-up */
 127         at91_set_gpio_input(AT91_PIN_PC11, 0);
 128
 129         platform_device_register(&at91sam9261_dm9000_device);
 130 }
 131 #else
 132 static void __init ek_add_device_dm9000(void) {}
 133 #endif /* CONFIG_DM9000 */
 134
 135
 136 /*
 137  * USB Host Port
 138  */
 139 static struct at91_usbh_data __initdata ek_usbh_data = {
 140         .ports          = 2,
 141 };
 142
 143
 144 /*
 145  * USB Device Port
 146  */
 147 static struct at91_udc_data __initdata ek_udc_data = {
 148         .vbus_pin       = AT91_PIN_PB29,
 149         .pullup_pin     = 0,            /* pull-up driven by UDC */
 150 };
 151
 152
 153 /*
 154  * MCI (SD/MMC)
 155  */
 156 static struct at91_mmc_data __initdata ek_mmc_data = {
 157         .wire4          = 1,
 158 //      .det_pin        = ... not connected
 159 //      .wp_pin         = ... not connected
 160 //      .vcc_pin        = ... not connected
 161 };
 162
 163
 164 /*
 165  * NAND flash
 166  */
 167 static struct mtd_partition __initdata ek_nand_partition[] = {
 168         {
 169                 .name   = "Partition 1",
 170                 .offset = 0,
 171                 .size   = 256 * 1024,
 172         },
 173         {
 174                 .name   = "Partition 2",
 175                 .offset = 256 * 1024 ,
 176                 .size   = MTDPART_SIZ_FULL,
 177         },
 178 };
 179
 180 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 181 {
 182         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 183         return ek_nand_partition;
 184 }
 185
 186 static struct atmel_nand_data __initdata ek_nand_data = {
 187         .ale            = 22,
 188         .cle            = 21,
 189 //      .det_pin        = ... not connected
 190         .rdy_pin        = AT91_PIN_PC15,
 191         .enable_pin     = AT91_PIN_PC14,
 192         .partition_info = nand_partitions,
 193 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 194         .bus_width_16   = 1,
 195 #else
 196         .bus_width_16   = 0,
 197 #endif
 198 };
 199
 200 /*
 201  * ADS7846 Touchscreen
 202  */
 203 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 204
 205 static int ads7843_pendown_state(void)
 206 {
 207         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 208 }
 209
 210 static struct ads7846_platform_data ads_info = {
 211         .model                  = 7843,
 212         .x_min                  = 150,
 213         .x_max                  = 3830,
 214         .y_min                  = 190,
 215         .y_max                  = 3830,
 216         .vref_delay_usecs       = 100,
 217         .x_plate_ohms           = 450,
 218         .y_plate_ohms           = 250,
 219         .pressure_max           = 15000,
 220         .debounce_max           = 1,
 221         .debounce_rep           = 0,
 222         .debounce_tol           = (~0),
 223         .get_pendown_state      = ads7843_pendown_state,
 224 };
 225
 226 static void __init ek_add_device_ts(void)
 227 {
 228         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 229         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 230 }
 231 #else
 232 static void __init ek_add_device_ts(void) {}
 233 #endif
 234
 235 /*
 236  * Audio
 237  */
 238 static struct at73c213_board_info at73c213_data = {
 239         .ssc_id         = 1,
 240         .shortname      = "AT91SAM9261-EK external DAC",
 241 };
 242
 243 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 244 static void __init at73c213_set_clk(struct at73c213_board_info *info)
 245 {
 246         struct clk *pck2;
 247         struct clk *plla;
 248
 249         pck2 = clk_get(NULL, "pck2");
 250         plla = clk_get(NULL, "plla");
 251
 252         /* AT73C213 MCK Clock */
 253         at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
 254
 255         clk_set_parent(pck2, plla);
 256         clk_put(plla);
 257
 258         info->dac_clk = pck2;
 259 }
 260 #else
 261 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 262 #endif
 263
 264 /*
 265  * SPI devices
 266  */
 267 static struct spi_board_info ek_spi_devices[] = {
 268         {       /* DataFlash chip */
 269                 .modalias       = "mtd_dataflash",
 270                 .chip_select    = 0,
 271                 .max_speed_hz   = 15 * 1000 * 1000,
 272                 .bus_num        = 0,
 273         },
 274 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 275         {
 276                 .modalias       = "ads7846",
 277                 .chip_select    = 2,
 278                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 279                 .bus_num        = 0,
 280                 .platform_data  = &ads_info,
 281                 .irq            = AT91SAM9261_ID_IRQ0,
 282                 .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
 283         },
 284 #endif
 285 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 286         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 287                 .modalias       = "mtd_dataflash",
 288                 .chip_select    = 3,
 289                 .max_speed_hz   = 15 * 1000 * 1000,
 290                 .bus_num        = 0,
 291         },
 292 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 293         {       /* AT73C213 DAC */
 294                 .modalias       = "at73c213",
 295                 .chip_select    = 3,
 296                 .max_speed_hz   = 10 * 1000 * 1000,
 297                 .bus_num        = 0,
 298                 .mode           = SPI_MODE_1,
 299                 .platform_data  = &at73c213_data,
 300                 .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
 301         },
 302 #endif
 303 };
 304
 305
 306 /*
 307  * LCD Controller
 308  */
 309 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 310
 311 #if defined(CONFIG_FB_ATMEL_STN)
 312
 313 /* STN */
 314 static struct fb_videomode at91_stn_modes[] = {
 315         {
 316                 .name           = "SP06Q002 @ 75",
 317                 .refresh        = 75,
 318                 .xres           = 320,          .yres           = 240,
 319                 .pixclock       = KHZ2PICOS(1440),
 320
 321                 .left_margin    = 1,            .right_margin   = 1,
 322                 .upper_margin   = 0,            .lower_margin   = 0,
 323                 .hsync_len      = 1,            .vsync_len      = 1,
 324
 325                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 326                 .vmode          = FB_VMODE_NONINTERLACED,
 327         },
 328 };
 329
 330 static struct fb_monspecs at91fb_default_stn_monspecs = {
 331         .manufacturer   = "HIT",
 332         .monitor        = "SP06Q002",
 333
 334         .modedb         = at91_stn_modes,
 335         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
 336         .hfmin          = 15000,
 337         .hfmax          = 64000,
 338         .vfmin          = 50,
 339         .vfmax          = 150,
 340 };
 341
 342 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 343                                         | ATMEL_LCDC_DISTYPE_STNMONO \
 344                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
 345                                         | ATMEL_LCDC_IFWIDTH_4 \
 346                                         | ATMEL_LCDC_SCANMOD_SINGLE)
 347
 348 static void at91_lcdc_stn_power_control(int on)
 349 {
 350         /* backlight */
 351         if (on) {       /* power up */
 352                 at91_set_gpio_value(AT91_PIN_PC14, 0);
 353                 at91_set_gpio_value(AT91_PIN_PC15, 0);
 354         } else {        /* power down */
 355                 at91_set_gpio_value(AT91_PIN_PC14, 1);
 356                 at91_set_gpio_value(AT91_PIN_PC15, 1);
 357         }
 358 }
 359
 360 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 361         .default_bpp                    = 1,
 362         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 363         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
 364         .default_monspecs               = &at91fb_default_stn_monspecs,
 365         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
 366         .guard_time                     = 1,
 367 };
 368
 369 #else
 370
 371 /* TFT */
 372 static struct fb_videomode at91_tft_vga_modes[] = {
 373         {
 374                 .name           = "TX09D50VM1CCA @ 60",
 375                 .refresh        = 60,
 376                 .xres           = 240,          .yres           = 320,
 377                 .pixclock       = KHZ2PICOS(4965),
 378
 379                 .left_margin    = 1,            .right_margin   = 33,
 380                 .upper_margin   = 1,            .lower_margin   = 0,
 381                 .hsync_len      = 5,            .vsync_len      = 1,
 382
 383                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 384                 .vmode          = FB_VMODE_NONINTERLACED,
 385         },
 386 };
 387
 388 static struct fb_monspecs at91fb_default_tft_monspecs = {
 389         .manufacturer   = "HIT",
 390         .monitor        = "TX09D50VM1CCA",
 391
 392         .modedb         = at91_tft_vga_modes,
 393         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 394         .hfmin          = 15000,
 395         .hfmax          = 64000,
 396         .vfmin          = 50,
 397         .vfmax          = 150,
 398 };
 399
 400 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 401                                         | ATMEL_LCDC_DISTYPE_TFT    \
 402                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 403
 404 static void at91_lcdc_tft_power_control(int on)
 405 {
 406         if (on)
 407                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 408         else
 409                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 410 }
 411
 412 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 413         .lcdcon_is_backlight            = true,
 414         .default_bpp                    = 16,
 415         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 416         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
 417         .default_monspecs               = &at91fb_default_tft_monspecs,
 418         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
 419         .guard_time                     = 1,
 420 };
 421 #endif
 422
 423 #else
 424 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 425 #endif
 426
 427
 428 /*
 429  * GPIO Buttons
 430  */
 431 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 432 static struct gpio_keys_button ek_buttons[] = {
 433         {
 434                 .gpio           = AT91_PIN_PA27,
 435                 .code           = BTN_0,
 436                 .desc           = "Button 0",
 437                 .active_low     = 1,
 438         },
 439         {
 440                 .gpio           = AT91_PIN_PA26,
 441                 .code           = BTN_1,
 442                 .desc           = "Button 1",
 443                 .active_low     = 1,
 444         },
 445         {
 446                 .gpio           = AT91_PIN_PA25,
 447                 .code           = BTN_2,
 448                 .desc           = "Button 2",
 449                 .active_low     = 1,
 450         },
 451         {
 452                 .gpio           = AT91_PIN_PA24,
 453                 .code           = BTN_3,
 454                 .desc           = "Button 3",
 455                 .active_low     = 1,
 456         }
 457 };
 458
 459 static struct gpio_keys_platform_data ek_button_data = {
 460         .buttons        = ek_buttons,
 461         .nbuttons       = ARRAY_SIZE(ek_buttons),
 462 };
 463
 464 static struct platform_device ek_button_device = {
 465         .name           = "gpio-keys",
 466         .id             = -1,
 467         .num_resources  = 0,
 468         .dev            = {
 469                 .platform_data  = &ek_button_data,
 470         }
 471 };
 472
 473 static void __init ek_add_device_buttons(void)
 474 {
 475         at91_set_gpio_input(AT91_PIN_PA27, 0);  /* btn0 */
 476         at91_set_deglitch(AT91_PIN_PA27, 1);
 477         at91_set_gpio_input(AT91_PIN_PA26, 0);  /* btn1 */
 478         at91_set_deglitch(AT91_PIN_PA26, 1);
 479         at91_set_gpio_input(AT91_PIN_PA25, 0);  /* btn2 */
 480         at91_set_deglitch(AT91_PIN_PA25, 1);
 481         at91_set_gpio_input(AT91_PIN_PA24, 0);  /* btn3 */
 482         at91_set_deglitch(AT91_PIN_PA24, 1);
 483
 484         platform_device_register(&ek_button_device);
 485 }
 486 #else
 487 static void __init ek_add_device_buttons(void) {}
 488 #endif
 489
 490 /*
 491  * LEDs
 492  */
 493 static struct gpio_led ek_leds[] = {
 494         {       /* "bottom" led, green, userled1 to be defined */
 495                 .name                   = "ds7",
 496                 .gpio                   = AT91_PIN_PA14,
 497                 .active_low             = 1,
 498                 .default_trigger        = "none",
 499         },
 500         {       /* "top" led, green, userled2 to be defined */
 501                 .name                   = "ds8",
 502                 .gpio                   = AT91_PIN_PA13,
 503                 .active_low             = 1,
 504                 .default_trigger        = "none",
 505         },
 506         {       /* "power" led, yellow */
 507                 .name                   = "ds1",
 508                 .gpio                   = AT91_PIN_PA23,
 509                 .default_trigger        = "heartbeat",
 510         }
 511 };
 512
 513 static void __init ek_board_init(void)
 514 {
 515         /* Serial */
 516         at91_add_device_serial();
 517         /* USB Host */
 518         at91_add_device_usbh(&ek_usbh_data);
 519         /* USB Device */
 520         at91_add_device_udc(&ek_udc_data);
 521         /* I2C */
 522         at91_add_device_i2c(NULL, 0);
 523         /* NAND */
 524         at91_add_device_nand(&ek_nand_data);
 525         /* DM9000 ethernet */
 526         ek_add_device_dm9000();
 527
 528         /* spi0 and mmc/sd share the same PIO pins */
 529 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 530         /* SPI */
 531         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 532         /* Touchscreen */
 533         ek_add_device_ts();
 534         /* SSC (to AT73C213) */
 535         at73c213_set_clk(&at73c213_data);
 536         at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
 537 #else
 538         /* MMC */
 539         at91_add_device_mmc(0, &ek_mmc_data);
 540 #endif
 541         /* LCD Controller */
 542         at91_add_device_lcdc(&ek_lcdc_data);
 543         /* Push Buttons */
 544         ek_add_device_buttons();
 545         /* LEDs */
 546         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 547 }
 548
 549 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 550         /* Maintainer: Atmel */
 551         .phys_io        = AT91_BASE_SYS,
 552         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 553         .boot_params    = AT91_SDRAM_BASE + 0x100,
 554         .timer          = &at91sam926x_timer,
 555         .map_io         = ek_map_io,
 556         .init_irq       = ek_init_irq,
 557         .init_machine   = ek_board_init,
 558 MACHINE_END