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 /*
  53  * Serial port configuration.
  54  *    0 .. 2 = USART0 .. USART2
  55  *    3      = DBGU
  56  */
  57 static struct at91_uart_config __initdata ek_uart_config = {
  58         .console_tty    = 0,                            /* ttyS0 */
  59         .nr_tty         = 1,
  60         .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
  61 };
  62
  63 static void __init ek_map_io(void)
  64 {
  65         /* Initialize processor: 18.432 MHz crystal */
  66         at91sam9261_initialize(18432000);
  67
  68         /* Setup the LEDs */
  69         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
  70
  71         /* Setup the serial ports and console */
  72         at91_init_serial(&ek_uart_config);
  73 }
  74
  75 static void __init ek_init_irq(void)
  76 {
  77         at91sam9261_init_interrupts(NULL);
  78 }
  79
  80
  81 /*
  82  * DM9000 ethernet device
  83  */
  84 #if defined(CONFIG_DM9000)
  85 static struct resource at91sam9261_dm9000_resource[] = {
  86         [0] = {
  87                 .start  = AT91_CHIPSELECT_2,
  88                 .end    = AT91_CHIPSELECT_2 + 3,
  89                 .flags  = IORESOURCE_MEM
  90         },
  91         [1] = {
  92                 .start  = AT91_CHIPSELECT_2 + 0x44,
  93                 .end    = AT91_CHIPSELECT_2 + 0xFF,
  94                 .flags  = IORESOURCE_MEM
  95         },
  96         [2] = {
  97                 .start  = AT91_PIN_PC11,
  98                 .end    = AT91_PIN_PC11,
  99                 .flags  = IORESOURCE_IRQ
 100         }
 101 };
 102
 103 static struct dm9000_plat_data dm9000_platdata = {
 104         .flags          = DM9000_PLATF_16BITONLY,
 105 };
 106
 107 static struct platform_device at91sam9261_dm9000_device = {
 108         .name           = "dm9000",
 109         .id             = 0,
 110         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
 111         .resource       = at91sam9261_dm9000_resource,
 112         .dev            = {
 113                 .platform_data  = &dm9000_platdata,
 114         }
 115 };
 116
 117 static void __init ek_add_device_dm9000(void)
 118 {
 119         /*
 120          * Configure Chip-Select 2 on SMC for the DM9000.
 121          * Note: These timings were calculated for MASTER_CLOCK = 100000000
 122          *  according to the DM9000 timings.
 123          */
 124         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));
 125         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));
 126         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 127         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));
 128
 129         /* Configure Reset signal as output */
 130         at91_set_gpio_output(AT91_PIN_PC10, 0);
 131
 132         /* Configure Interrupt pin as input, no pull-up */
 133         at91_set_gpio_input(AT91_PIN_PC11, 0);
 134
 135         platform_device_register(&at91sam9261_dm9000_device);
 136 }
 137 #else
 138 static void __init ek_add_device_dm9000(void) {}
 139 #endif /* CONFIG_DM9000 */
 140
 141
 142 /*
 143  * USB Host Port
 144  */
 145 static struct at91_usbh_data __initdata ek_usbh_data = {
 146         .ports          = 2,
 147 };
 148
 149
 150 /*
 151  * USB Device Port
 152  */
 153 static struct at91_udc_data __initdata ek_udc_data = {
 154         .vbus_pin       = AT91_PIN_PB29,
 155         .pullup_pin     = 0,            /* pull-up driven by UDC */
 156 };
 157
 158
 159 /*
 160  * MCI (SD/MMC)
 161  */
 162 static struct at91_mmc_data __initdata ek_mmc_data = {
 163         .wire4          = 1,
 164 //      .det_pin        = ... not connected
 165 //      .wp_pin         = ... not connected
 166 //      .vcc_pin        = ... not connected
 167 };
 168
 169
 170 /*
 171  * NAND flash
 172  */
 173 static struct mtd_partition __initdata ek_nand_partition[] = {
 174         {
 175                 .name   = "Partition 1",
 176                 .offset = 0,
 177                 .size   = 256 * 1024,
 178         },
 179         {
 180                 .name   = "Partition 2",
 181                 .offset = 256 * 1024 ,
 182                 .size   = MTDPART_SIZ_FULL,
 183         },
 184 };
 185
 186 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 187 {
 188         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 189         return ek_nand_partition;
 190 }
 191
 192 static struct at91_nand_data __initdata ek_nand_data = {
 193         .ale            = 22,
 194         .cle            = 21,
 195 //      .det_pin        = ... not connected
 196         .rdy_pin        = AT91_PIN_PC15,
 197         .enable_pin     = AT91_PIN_PC14,
 198         .partition_info = nand_partitions,
 199 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 200         .bus_width_16   = 1,
 201 #else
 202         .bus_width_16   = 0,
 203 #endif
 204 };
 205
 206 /*
 207  * ADS7846 Touchscreen
 208  */
 209 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 210
 211 static int ads7843_pendown_state(void)
 212 {
 213         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
 214 }
 215
 216 static struct ads7846_platform_data ads_info = {
 217         .model                  = 7843,
 218         .x_min                  = 150,
 219         .x_max                  = 3830,
 220         .y_min                  = 190,
 221         .y_max                  = 3830,
 222         .vref_delay_usecs       = 100,
 223         .x_plate_ohms           = 450,
 224         .y_plate_ohms           = 250,
 225         .pressure_max           = 15000,
 226         .debounce_max           = 1,
 227         .debounce_rep           = 0,
 228         .debounce_tol           = (~0),
 229         .get_pendown_state      = ads7843_pendown_state,
 230 };
 231
 232 static void __init ek_add_device_ts(void)
 233 {
 234         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
 235         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
 236 }
 237 #else
 238 static void __init ek_add_device_ts(void) {}
 239 #endif
 240
 241 /*
 242  * SPI devices
 243  */
 244 static struct spi_board_info ek_spi_devices[] = {
 245         {       /* DataFlash chip */
 246                 .modalias       = "mtd_dataflash",
 247                 .chip_select    = 0,
 248                 .max_speed_hz   = 15 * 1000 * 1000,
 249                 .bus_num        = 0,
 250         },
 251 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 252         {
 253                 .modalias       = "ads7846",
 254                 .chip_select    = 2,
 255                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 256                 .bus_num        = 0,
 257                 .platform_data  = &ads_info,
 258                 .irq            = AT91SAM9261_ID_IRQ0,
 259         },
 260 #endif
 261 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 262         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 263                 .modalias       = "mtd_dataflash",
 264                 .chip_select    = 3,
 265                 .max_speed_hz   = 15 * 1000 * 1000,
 266                 .bus_num        = 0,
 267         },
 268 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 269         {       /* AT73C213 DAC */
 270                 .modalias       = "at73c213",
 271                 .chip_select    = 3,
 272                 .max_speed_hz   = 10 * 1000 * 1000,
 273                 .bus_num        = 0,
 274         },
 275 #endif
 276 };
 277
 278
 279 /*
 280  * LCD Controller
 281  */
 282 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 283
 284 #if defined(CONFIG_FB_ATMEL_STN)
 285
 286 /* STN */
 287 static struct fb_videomode at91_stn_modes[] = {
 288         {
 289                 .name           = "SP06Q002 @ 75",
 290                 .refresh        = 75,
 291                 .xres           = 320,          .yres           = 240,
 292                 .pixclock       = KHZ2PICOS(1440),
 293
 294                 .left_margin    = 1,            .right_margin   = 1,
 295                 .upper_margin   = 0,            .lower_margin   = 0,
 296                 .hsync_len      = 1,            .vsync_len      = 1,
 297
 298                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 299                 .vmode          = FB_VMODE_NONINTERLACED,
 300         },
 301 };
 302
 303 static struct fb_monspecs at91fb_default_stn_monspecs = {
 304         .manufacturer   = "HIT",
 305         .monitor        = "SP06Q002",
 306
 307         .modedb         = at91_stn_modes,
 308         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
 309         .hfmin          = 15000,
 310         .hfmax          = 64000,
 311         .vfmin          = 50,
 312         .vfmax          = 150,
 313 };
 314
 315 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 316                                         | ATMEL_LCDC_DISTYPE_STNMONO \
 317                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
 318                                         | ATMEL_LCDC_IFWIDTH_4 \
 319                                         | ATMEL_LCDC_SCANMOD_SINGLE)
 320
 321 static void at91_lcdc_stn_power_control(int on)
 322 {
 323         /* backlight */
 324         if (on) {       /* power up */
 325                 at91_set_gpio_value(AT91_PIN_PC14, 0);
 326                 at91_set_gpio_value(AT91_PIN_PC15, 0);
 327         } else {        /* power down */
 328                 at91_set_gpio_value(AT91_PIN_PC14, 1);
 329                 at91_set_gpio_value(AT91_PIN_PC15, 1);
 330         }
 331 }
 332
 333 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 334         .default_bpp                    = 1,
 335         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 336         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
 337         .default_monspecs               = &at91fb_default_stn_monspecs,
 338         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
 339         .guard_time                     = 1,
 340 };
 341
 342 #else
 343
 344 /* TFT */
 345 static struct fb_videomode at91_tft_vga_modes[] = {
 346         {
 347                 .name           = "TX09D50VM1CCA @ 60",
 348                 .refresh        = 60,
 349                 .xres           = 240,          .yres           = 320,
 350                 .pixclock       = KHZ2PICOS(4965),
 351
 352                 .left_margin    = 1,            .right_margin   = 33,
 353                 .upper_margin   = 1,            .lower_margin   = 0,
 354                 .hsync_len      = 5,            .vsync_len      = 1,
 355
 356                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 357                 .vmode          = FB_VMODE_NONINTERLACED,
 358         },
 359 };
 360
 361 static struct fb_monspecs at91fb_default_tft_monspecs = {
 362         .manufacturer   = "HIT",
 363         .monitor        = "TX09D50VM1CCA",
 364
 365         .modedb         = at91_tft_vga_modes,
 366         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 367         .hfmin          = 15000,
 368         .hfmax          = 64000,
 369         .vfmin          = 50,
 370         .vfmax          = 150,
 371 };
 372
 373 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 374                                         | ATMEL_LCDC_DISTYPE_TFT    \
 375                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 376
 377 static void at91_lcdc_tft_power_control(int on)
 378 {
 379         if (on)
 380                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 381         else
 382                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 383 }
 384
 385 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 386         .lcdcon_is_backlight            = true,
 387         .default_bpp                    = 16,
 388         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 389         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
 390         .default_monspecs               = &at91fb_default_tft_monspecs,
 391         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
 392         .guard_time                     = 1,
 393 };
 394 #endif
 395
 396 #else
 397 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 398 #endif
 399
 400
 401 /*
 402  * GPIO Buttons
 403  */
 404 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 405 static struct gpio_keys_button ek_buttons[] = {
 406         {
 407                 .gpio           = AT91_PIN_PA27,
 408                 .code           = BTN_0,
 409                 .desc           = "Button 0",
 410                 .active_low     = 1,
 411         },
 412         {
 413                 .gpio           = AT91_PIN_PA26,
 414                 .code           = BTN_1,
 415                 .desc           = "Button 1",
 416                 .active_low     = 1,
 417         },
 418         {
 419                 .gpio           = AT91_PIN_PA25,
 420                 .code           = BTN_2,
 421                 .desc           = "Button 2",
 422                 .active_low     = 1,
 423         },
 424         {
 425                 .gpio           = AT91_PIN_PA24,
 426                 .code           = BTN_3,
 427                 .desc           = "Button 3",
 428                 .active_low     = 1,
 429         }
 430 };
 431
 432 static struct gpio_keys_platform_data ek_button_data = {
 433         .buttons        = ek_buttons,
 434         .nbuttons       = ARRAY_SIZE(ek_buttons),
 435 };
 436
 437 static struct platform_device ek_button_device = {
 438         .name           = "gpio-keys",
 439         .id             = -1,
 440         .num_resources  = 0,
 441         .dev            = {
 442                 .platform_data  = &ek_button_data,
 443         }
 444 };
 445
 446 static void __init ek_add_device_buttons(void)
 447 {
 448         at91_set_gpio_input(AT91_PIN_PA27, 0);  /* btn0 */
 449         at91_set_deglitch(AT91_PIN_PA27, 1);
 450         at91_set_gpio_input(AT91_PIN_PA26, 0);  /* btn1 */
 451         at91_set_deglitch(AT91_PIN_PA26, 1);
 452         at91_set_gpio_input(AT91_PIN_PA25, 0);  /* btn2 */
 453         at91_set_deglitch(AT91_PIN_PA25, 1);
 454         at91_set_gpio_input(AT91_PIN_PA24, 0);  /* btn3 */
 455         at91_set_deglitch(AT91_PIN_PA24, 1);
 456
 457         platform_device_register(&ek_button_device);
 458 }
 459 #else
 460 static void __init ek_add_device_buttons(void) {}
 461 #endif
 462
 463 static void __init ek_board_init(void)
 464 {
 465         /* Serial */
 466         at91_add_device_serial();
 467         /* USB Host */
 468         at91_add_device_usbh(&ek_usbh_data);
 469         /* USB Device */
 470         at91_add_device_udc(&ek_udc_data);
 471         /* I2C */
 472         at91_add_device_i2c(NULL, 0);
 473         /* NAND */
 474         at91_add_device_nand(&ek_nand_data);
 475         /* DM9000 ethernet */
 476         ek_add_device_dm9000();
 477
 478         /* spi0 and mmc/sd share the same PIO pins */
 479 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 480         /* SPI */
 481         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 482         /* Touchscreen */
 483         ek_add_device_ts();
 484 #else
 485         /* MMC */
 486         at91_add_device_mmc(0, &ek_mmc_data);
 487 #endif
 488         /* LCD Controller */
 489         at91_add_device_lcdc(&ek_lcdc_data);
 490         /* Push Buttons */
 491         ek_add_device_buttons();
 492 }
 493
 494 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 495         /* Maintainer: Atmel */
 496         .phys_io        = AT91_BASE_SYS,
 497         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 498         .boot_params    = AT91_SDRAM_BASE + 0x100,
 499         .timer          = &at91sam926x_timer,
 500         .map_io         = ek_map_io,
 501         .init_irq       = ek_init_irq,
 502         .init_machine   = ek_board_init,
 503 MACHINE_END