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/dm9000.h>
  30 #include <linux/fb.h>
  31 #include <linux/gpio_keys.h>
  32 #include <linux/input.h>
  33
  34 #include <video/atmel_lcdc.h>
  35
  36 #include <asm/hardware.h>
  37 #include <asm/setup.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/irq.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44
  45 #include <asm/arch/board.h>
  46 #include <asm/arch/gpio.h>
  47 #include <asm/arch/at91sam9_smc.h>
  48
  49 #include "generic.h"
  50
  51
  52 static void __init ek_map_io(void)
  53 {
  54         /* Initialize processor: 18.432 MHz crystal */
  55         at91sam9261_initialize(18432000);
  56
  57         /* Setup the LEDs */
  58         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
  59
  60         /* DGBU on ttyS0. (Rx & Tx only) */
  61         at91_register_uart(0, 0, 0);
  62
  63         /* set serial console to ttyS0 (ie, DBGU) */
  64         at91_set_serial_console(0);
  65 }
  66
  67 static void __init ek_init_irq(void)
  68 {
  69         at91sam9261_init_interrupts(NULL);
  70 }
  71
  72
  73 /*
  74  * DM9000 ethernet device
  75  */
  76 #if defined(CONFIG_DM9000)
  77 static struct resource at91sam9261_dm9000_resource[] = {
  78         [0] = {
  79                 .start  = AT91_CHIPSELECT_2,
  80                 .end    = AT91_CHIPSELECT_2 + 3,
  81                 .flags  = IORESOURCE_MEM
  82         },
  83         [1] = {
  84                 .start  = AT91_CHIPSELECT_2 + 0x44,
  85                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  86                 .flags  = IORESOURCE_MEM
  87         },
  88         [2] = {
  89                 .start  = AT91_PIN_PC11,
  90                 .end    = AT91_PIN_PC11,
  91                 .flags  = IORESOURCE_IRQ
  92         }
  93 };
  94
  95 static struct dm9000_plat_data dm9000_platdata = {
  96         .flags          = DM9000_PLATF_16BITONLY,
  97 };
  98
  99 static struct platform_device at91sam9261_dm9000_device = {
 100         .name           = "dm9000",
 101         .id             = 0,
 102         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
 103         .resource       = at91sam9261_dm9000_resource,
 104         .dev            = {
 105                 .platform_data  = &dm9000_platdata,
 106         }
 107 };
 108
 109 static void __init ek_add_device_dm9000(void)
 110 {
 111         /*
 112          * Configure Chip-Select 2 on SMC for the DM9000.
 113          * Note: These timings were calculated for MASTER_CLOCK = 100000000
 114          *  according to the DM9000 timings.
 115          */
 116         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));
 117         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));
 118         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 119         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));
 120
 121         /* Configure Reset signal as output */
 122         at91_set_gpio_output(AT91_PIN_PC10, 0);
 123
 124         /* Configure Interrupt pin as input, no pull-up */
 125         at91_set_gpio_input(AT91_PIN_PC11, 0);
 126
 127         platform_device_register(&at91sam9261_dm9000_device);
 128 }
 129 #else
 130 static void __init ek_add_device_dm9000(void) {}
 131 #endif /* CONFIG_DM9000 */
 132
 133
 134 /*
 135  * USB Host Port
 136  */
 137 static struct at91_usbh_data __initdata ek_usbh_data = {
 138         .ports          = 2,
 139 };
 140
 141
 142 /*
 143  * USB Device Port
 144  */
 145 static struct at91_udc_data __initdata ek_udc_data = {
 146         .vbus_pin       = AT91_PIN_PB29,
 147         .pullup_pin     = 0,            /* pull-up driven by UDC */
 148 };
 149
 150
 151 /*
 152  * MCI (SD/MMC)
 153  */
 154 static struct at91_mmc_data __initdata ek_mmc_data = {
 155         .wire4          = 1,
 156 //      .det_pin        = ... not connected
 157 //      .wp_pin         = ... not connected
 158 //      .vcc_pin        = ... not connected
 159 };
 160
 161
 162 /*
 163  * NAND flash
 164  */
 165 static struct mtd_partition __initdata ek_nand_partition[] = {
 166         {
 167                 .name   = "Partition 1",
 168                 .offset = 0,
 169                 .size   = 256 * 1024,
 170         },
 171         {
 172                 .name   = "Partition 2",
 173                 .offset = 256 * 1024 ,
 174                 .size   = MTDPART_SIZ_FULL,
 175         },
 176 };
 177
 178 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 179 {
 180         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 181         return ek_nand_partition;
 182 }
 183
 184 static struct at91_nand_data __initdata ek_nand_data = {
 185         .ale            = 22,
 186         .cle            = 21,
 187 //      .det_pin        = ... not connected
 188         .rdy_pin        = AT91_PIN_PC15,
 189         .enable_pin     = AT91_PIN_PC14,
 190         .partition_info = nand_partitions,
 191 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 192         .bus_width_16   = 1,
 193 #else
 194         .bus_width_16   = 0,
 195 #endif
 196 };
 197
 198 /*
 199  * ADS7846 Touchscreen
 200  */
 201 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 202
 203 static int ads7843_pendown_state(void)
 204 {
 205         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 206 }
 207
 208 static struct ads7846_platform_data ads_info = {
 209         .model                  = 7843,
 210         .x_min                  = 150,
 211         .x_max                  = 3830,
 212         .y_min                  = 190,
 213         .y_max                  = 3830,
 214         .vref_delay_usecs       = 100,
 215         .x_plate_ohms           = 450,
 216         .y_plate_ohms           = 250,
 217         .pressure_max           = 15000,
 218         .debounce_max           = 1,
 219         .debounce_rep           = 0,
 220         .debounce_tol           = (~0),
 221         .get_pendown_state      = ads7843_pendown_state,
 222 };
 223
 224 static void __init ek_add_device_ts(void)
 225 {
 226         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 227         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 228 }
 229 #else
 230 static void __init ek_add_device_ts(void) {}
 231 #endif
 232
 233 /*
 234  * SPI devices
 235  */
 236 static struct spi_board_info ek_spi_devices[] = {
 237         {       /* DataFlash chip */
 238                 .modalias       = "mtd_dataflash",
 239                 .chip_select    = 0,
 240                 .max_speed_hz   = 15 * 1000 * 1000,
 241                 .bus_num        = 0,
 242         },
 243 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 244         {
 245                 .modalias       = "ads7846",
 246                 .chip_select    = 2,
 247                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 248                 .bus_num        = 0,
 249                 .platform_data  = &ads_info,
 250                 .irq            = AT91SAM9261_ID_IRQ0,
 251         },
 252 #endif
 253 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 254         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 255                 .modalias       = "mtd_dataflash",
 256                 .chip_select    = 3,
 257                 .max_speed_hz   = 15 * 1000 * 1000,
 258                 .bus_num        = 0,
 259         },
 260 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 261         {       /* AT73C213 DAC */
 262                 .modalias       = "at73c213",
 263                 .chip_select    = 3,
 264                 .max_speed_hz   = 10 * 1000 * 1000,
 265                 .bus_num        = 0,
 266         },
 267 #endif
 268 };
 269
 270
 271 /*
 272  * LCD Controller
 273  */
 274 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 275
 276 #if defined(CONFIG_FB_ATMEL_STN)
 277
 278 /* STN */
 279 static struct fb_videomode at91_stn_modes[] = {
 280         {
 281                 .name           = "SP06Q002 @ 75",
 282                 .refresh        = 75,
 283                 .xres           = 320,          .yres           = 240,
 284                 .pixclock       = KHZ2PICOS(1440),
 285
 286                 .left_margin    = 1,            .right_margin   = 1,
 287                 .upper_margin   = 0,            .lower_margin   = 0,
 288                 .hsync_len      = 1,            .vsync_len      = 1,
 289
 290                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 291                 .vmode          = FB_VMODE_NONINTERLACED,
 292         },
 293 };
 294
 295 static struct fb_monspecs at91fb_default_stn_monspecs = {
 296         .manufacturer   = "HIT",
 297         .monitor        = "SP06Q002",
 298
 299         .modedb         = at91_stn_modes,
 300         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
 301         .hfmin          = 15000,
 302         .hfmax          = 64000,
 303         .vfmin          = 50,
 304         .vfmax          = 150,
 305 };
 306
 307 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 308                                         | ATMEL_LCDC_DISTYPE_STNMONO \
 309                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
 310                                         | ATMEL_LCDC_IFWIDTH_4 \
 311                                         | ATMEL_LCDC_SCANMOD_SINGLE)
 312
 313 static void at91_lcdc_stn_power_control(int on)
 314 {
 315         /* backlight */
 316         if (on) {       /* power up */
 317                 at91_set_gpio_value(AT91_PIN_PC14, 0);
 318                 at91_set_gpio_value(AT91_PIN_PC15, 0);
 319         } else {        /* power down */
 320                 at91_set_gpio_value(AT91_PIN_PC14, 1);
 321                 at91_set_gpio_value(AT91_PIN_PC15, 1);
 322         }
 323 }
 324
 325 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 326         .default_bpp                    = 1,
 327         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 328         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
 329         .default_monspecs               = &at91fb_default_stn_monspecs,
 330         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
 331         .guard_time                     = 1,
 332 };
 333
 334 #else
 335
 336 /* TFT */
 337 static struct fb_videomode at91_tft_vga_modes[] = {
 338         {
 339                 .name           = "TX09D50VM1CCA @ 60",
 340                 .refresh        = 60,
 341                 .xres           = 240,          .yres           = 320,
 342                 .pixclock       = KHZ2PICOS(4965),
 343
 344                 .left_margin    = 1,            .right_margin   = 33,
 345                 .upper_margin   = 1,            .lower_margin   = 0,
 346                 .hsync_len      = 5,            .vsync_len      = 1,
 347
 348                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 349                 .vmode          = FB_VMODE_NONINTERLACED,
 350         },
 351 };
 352
 353 static struct fb_monspecs at91fb_default_tft_monspecs = {
 354         .manufacturer   = "HIT",
 355         .monitor        = "TX09D50VM1CCA",
 356
 357         .modedb         = at91_tft_vga_modes,
 358         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 359         .hfmin          = 15000,
 360         .hfmax          = 64000,
 361         .vfmin          = 50,
 362         .vfmax          = 150,
 363 };
 364
 365 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 366                                         | ATMEL_LCDC_DISTYPE_TFT    \
 367                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 368
 369 static void at91_lcdc_tft_power_control(int on)
 370 {
 371         if (on)
 372                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 373         else
 374                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 375 }
 376
 377 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 378         .lcdcon_is_backlight            = true,
 379         .default_bpp                    = 16,
 380         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 381         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
 382         .default_monspecs               = &at91fb_default_tft_monspecs,
 383         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
 384         .guard_time                     = 1,
 385 };
 386 #endif
 387
 388 #else
 389 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 390 #endif
 391
 392
 393 /*
 394  * GPIO Buttons
 395  */
 396 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 397 static struct gpio_keys_button ek_buttons[] = {
 398         {
 399                 .gpio           = AT91_PIN_PA27,
 400                 .code           = BTN_0,
 401                 .desc           = "Button 0",
 402                 .active_low     = 1,
 403         },
 404         {
 405                 .gpio           = AT91_PIN_PA26,
 406                 .code           = BTN_1,
 407                 .desc           = "Button 1",
 408                 .active_low     = 1,
 409         },
 410         {
 411                 .gpio           = AT91_PIN_PA25,
 412                 .code           = BTN_2,
 413                 .desc           = "Button 2",
 414                 .active_low     = 1,
 415         },
 416         {
 417                 .gpio           = AT91_PIN_PA24,
 418                 .code           = BTN_3,
 419                 .desc           = "Button 3",
 420                 .active_low     = 1,
 421         }
 422 };
 423
 424 static struct gpio_keys_platform_data ek_button_data = {
 425         .buttons        = ek_buttons,
 426         .nbuttons       = ARRAY_SIZE(ek_buttons),
 427 };
 428
 429 static struct platform_device ek_button_device = {
 430         .name           = "gpio-keys",
 431         .id             = -1,
 432         .num_resources  = 0,
 433         .dev            = {
 434                 .platform_data  = &ek_button_data,
 435         }
 436 };
 437
 438 static void __init ek_add_device_buttons(void)
 439 {
 440         at91_set_gpio_input(AT91_PIN_PA27, 0);  /* btn0 */
 441         at91_set_deglitch(AT91_PIN_PA27, 1);
 442         at91_set_gpio_input(AT91_PIN_PA26, 0);  /* btn1 */
 443         at91_set_deglitch(AT91_PIN_PA26, 1);
 444         at91_set_gpio_input(AT91_PIN_PA25, 0);  /* btn2 */
 445         at91_set_deglitch(AT91_PIN_PA25, 1);
 446         at91_set_gpio_input(AT91_PIN_PA24, 0);  /* btn3 */
 447         at91_set_deglitch(AT91_PIN_PA24, 1);
 448
 449         platform_device_register(&ek_button_device);
 450 }
 451 #else
 452 static void __init ek_add_device_buttons(void) {}
 453 #endif
 454
 455 static void __init ek_board_init(void)
 456 {
 457         /* Serial */
 458         at91_add_device_serial();
 459         /* USB Host */
 460         at91_add_device_usbh(&ek_usbh_data);
 461         /* USB Device */
 462         at91_add_device_udc(&ek_udc_data);
 463         /* I2C */
 464         at91_add_device_i2c(NULL, 0);
 465         /* NAND */
 466         at91_add_device_nand(&ek_nand_data);
 467         /* DM9000 ethernet */
 468         ek_add_device_dm9000();
 469
 470         /* spi0 and mmc/sd share the same PIO pins */
 471 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 472         /* SPI */
 473         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 474         /* Touchscreen */
 475         ek_add_device_ts();
 476 #else
 477         /* MMC */
 478         at91_add_device_mmc(0, &ek_mmc_data);
 479 #endif
 480         /* LCD Controller */
 481         at91_add_device_lcdc(&ek_lcdc_data);
 482         /* Push Buttons */
 483         ek_add_device_buttons();
 484 }
 485
 486 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 487         /* Maintainer: Atmel */
 488         .phys_io        = AT91_BASE_SYS,
 489         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 490         .boot_params    = AT91_SDRAM_BASE + 0x100,
 491         .timer          = &at91sam926x_timer,
 492         .map_io         = ek_map_io,
 493         .init_irq       = ek_init_irq,
 494         .init_machine   = ek_board_init,
 495 MACHINE_END