LXR linux/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 <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
  54static 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
  69static 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)
  79static 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
  97static struct dm9000_plat_data dm9000_platdata = {
  98        .flags          = DM9000_PLATF_16BITONLY,
  99};
 100
 101static 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
 111static 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
 132static void __init ek_add_device_dm9000(void) {}
 133#endif /* CONFIG_DM9000 */
 134
 135
 136/*
 137 * USB Host Port
 138 */
 139static struct at91_usbh_data __initdata ek_usbh_data = {
 140        .ports          = 2,
 141};
 142
 143
 144/*
 145 * USB Device Port
 146 */
 147static 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 */
 156static 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 */
 167static 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
 180static 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
 186static 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
 205static int ads7843_pendown_state(void)
 206{
 207        return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 208}
 209
 210static 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
 226static 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
 232static void __init ek_add_device_ts(void) {}
 233#endif
 234
 235/*
 236 * Audio
 237 */
 238static 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)
 244static 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
 261static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 262#endif
 263
 264/*
 265 * SPI devices
 266 */
 267static 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 */
 314static 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
 330static 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
 348static 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
 360static 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 */
 372static 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
 388static 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
 404static 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
 412static 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
 424static 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)
 432static 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
 459static struct gpio_keys_platform_data ek_button_data = {
 460        .buttons        = ek_buttons,
 461        .nbuttons       = ARRAY_SIZE(ek_buttons),
 462};
 463
 464static 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
 473static 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
 487static void __init ek_add_device_buttons(void) {}
 488#endif
 489
 490/*
 491 * LEDs
 492 */
 493static 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
 513static 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
 549MACHINE_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,
 558MACHINE_END
 559