arch/arm/mach-at91/board-sam9263ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9263ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2007 Atmel Corporation.
   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/gpio.h>
  24 #include <linux/init.h>
  25 #include <linux/mm.h>
  26 #include <linux/module.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/ads7846.h>
  30 #include <linux/i2c/at24.h>
  31 #include <linux/fb.h>
  32 #include <linux/gpio_keys.h>
  33 #include <linux/input.h>
  34 #include <linux/leds.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/at91sam9_smc.h>
  49 #include <mach/at91_shdwc.h>
  50 #include <mach/system_rev.h>
  51
  52 #include "sam9_smc.h"
  53 #include "generic.h"
  54
  55
  56 static void __init ek_init_early(void)
  57 {
  58         /* Initialize processor: 16.367 MHz crystal */
  59         at91_initialize(16367660);
  60 }
  61
  62 /*
  63  * USB Host port
  64  */
  65 static struct at91_usbh_data __initdata ek_usbh_data = {
  66         .ports          = 2,
  67         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  68         .vbus_pin_active_low = {1, 1},
  69         .overcurrent_pin= {-EINVAL, -EINVAL},
  70 };
  71
  72 /*
  73  * USB Device port
  74  */
  75 static struct at91_udc_data __initdata ek_udc_data = {
  76         .vbus_pin       = AT91_PIN_PA25,
  77         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  78 };
  79
  80
  81 /*
  82  * ADS7846 Touchscreen
  83  */
  84 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  85 static int ads7843_pendown_state(void)
  86 {
  87         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  88 }
  89
  90 static struct ads7846_platform_data ads_info = {
  91         .model                  = 7843,
  92         .x_min                  = 150,
  93         .x_max                  = 3830,
  94         .y_min                  = 190,
  95         .y_max                  = 3830,
  96         .vref_delay_usecs       = 100,
  97         .x_plate_ohms           = 450,
  98         .y_plate_ohms           = 250,
  99         .pressure_max           = 15000,
 100         .debounce_max           = 1,
 101         .debounce_rep           = 0,
 102         .debounce_tol           = (~0),
 103         .get_pendown_state      = ads7843_pendown_state,
 104 };
 105
 106 static void __init ek_add_device_ts(void)
 107 {
 108         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 109         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 110 }
 111 #else
 112 static void __init ek_add_device_ts(void) {}
 113 #endif
 114
 115 /*
 116  * SPI devices.
 117  */
 118 static struct spi_board_info ek_spi_devices[] = {
 119 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 120         {       /* DataFlash card */
 121                 .modalias       = "mtd_dataflash",
 122                 .chip_select    = 0,
 123                 .max_speed_hz   = 15 * 1000 * 1000,
 124                 .bus_num        = 0,
 125         },
 126 #endif
 127 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 128         {
 129                 .modalias       = "ads7846",
 130                 .chip_select    = 3,
 131                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 132                 .bus_num        = 0,
 133                 .platform_data  = &ads_info,
 134                 .irq            = AT91SAM9263_ID_IRQ1,
 135         },
 136 #endif
 137 };
 138
 139
 140 /*
 141  * MCI (SD/MMC)
 142  */
 143 static struct at91_mmc_data __initdata ek_mmc_data = {
 144         .wire4          = 1,
 145         .det_pin        = AT91_PIN_PE18,
 146         .wp_pin         = AT91_PIN_PE19,
 147         .vcc_pin        = -EINVAL,
 148 };
 149
 150
 151 /*
 152  * MACB Ethernet device
 153  */
 154 static struct macb_platform_data __initdata ek_macb_data = {
 155         .phy_irq_pin    = AT91_PIN_PE31,
 156         .is_rmii        = 1,
 157 };
 158
 159
 160 /*
 161  * NAND flash
 162  */
 163 static struct mtd_partition __initdata ek_nand_partition[] = {
 164         {
 165                 .name   = "Partition 1",
 166                 .offset = 0,
 167                 .size   = SZ_64M,
 168         },
 169         {
 170                 .name   = "Partition 2",
 171                 .offset = MTDPART_OFS_NXTBLK,
 172                 .size   = MTDPART_SIZ_FULL,
 173         },
 174 };
 175
 176 static struct atmel_nand_data __initdata ek_nand_data = {
 177         .ale            = 21,
 178         .cle            = 22,
 179         .det_pin        = -EINVAL,
 180         .rdy_pin        = AT91_PIN_PA22,
 181         .enable_pin     = AT91_PIN_PD15,
 182         .ecc_mode       = NAND_ECC_SOFT,
 183         .on_flash_bbt   = 1,
 184         .parts          = ek_nand_partition,
 185         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 186 };
 187
 188 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 189         .ncs_read_setup         = 0,
 190         .nrd_setup              = 1,
 191         .ncs_write_setup        = 0,
 192         .nwe_setup              = 1,
 193
 194         .ncs_read_pulse         = 3,
 195         .nrd_pulse              = 3,
 196         .ncs_write_pulse        = 3,
 197         .nwe_pulse              = 3,
 198
 199         .read_cycle             = 5,
 200         .write_cycle            = 5,
 201
 202         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 203         .tdf_cycles             = 2,
 204 };
 205
 206 static void __init ek_add_device_nand(void)
 207 {
 208         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 209         /* setup bus-width (8 or 16) */
 210         if (ek_nand_data.bus_width_16)
 211                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 212         else
 213                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 214
 215         /* configure chip-select 3 (NAND) */
 216         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 217
 218         at91_add_device_nand(&ek_nand_data);
 219 }
 220
 221
 222 /*
 223  * I2C devices
 224  */
 225 static struct at24_platform_data at24c512 = {
 226         .byte_len       = SZ_512K / 8,
 227         .page_size      = 128,
 228         .flags          = AT24_FLAG_ADDR16,
 229 };
 230
 231
 232 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 233         {
 234                 I2C_BOARD_INFO("24c512", 0x50),
 235                 .platform_data = &at24c512,
 236         },
 237         /* more devices can be added using expansion connectors */
 238 };
 239
 240 /*
 241  * LCD Controller
 242  */
 243 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 244 static struct fb_videomode at91_tft_vga_modes[] = {
 245         {
 246                 .name           = "TX09D50VM1CCA @ 60",
 247                 .refresh        = 60,
 248                 .xres           = 240,          .yres           = 320,
 249                 .pixclock       = KHZ2PICOS(4965),
 250
 251                 .left_margin    = 1,            .right_margin   = 33,
 252                 .upper_margin   = 1,            .lower_margin   = 0,
 253                 .hsync_len      = 5,            .vsync_len      = 1,
 254
 255                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 256                 .vmode          = FB_VMODE_NONINTERLACED,
 257         },
 258 };
 259
 260 static struct fb_monspecs at91fb_default_monspecs = {
 261         .manufacturer   = "HIT",
 262         .monitor        = "TX09D70VM1CCA",
 263
 264         .modedb         = at91_tft_vga_modes,
 265         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 266         .hfmin          = 15000,
 267         .hfmax          = 64000,
 268         .vfmin          = 50,
 269         .vfmax          = 150,
 270 };
 271
 272 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 273                                         | ATMEL_LCDC_DISTYPE_TFT \
 274                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 275
 276 static void at91_lcdc_power_control(int on)
 277 {
 278         at91_set_gpio_value(AT91_PIN_PA30, on);
 279 }
 280
 281 /* Driver datas */
 282 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 283         .lcdcon_is_backlight            = true,
 284         .default_bpp                    = 16,
 285         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 286         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 287         .default_monspecs               = &at91fb_default_monspecs,
 288         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 289         .guard_time                     = 1,
 290 };
 291
 292 #else
 293 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 294 #endif
 295
 296
 297 /*
 298  * GPIO Buttons
 299  */
 300 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 301 static struct gpio_keys_button ek_buttons[] = {
 302         {       /* BP1, "leftclic" */
 303                 .code           = BTN_LEFT,
 304                 .gpio           = AT91_PIN_PC5,
 305                 .active_low     = 1,
 306                 .desc           = "left_click",
 307                 .wakeup         = 1,
 308         },
 309         {       /* BP2, "rightclic" */
 310                 .code           = BTN_RIGHT,
 311                 .gpio           = AT91_PIN_PC4,
 312                 .active_low     = 1,
 313                 .desc           = "right_click",
 314                 .wakeup         = 1,
 315         }
 316 };
 317
 318 static struct gpio_keys_platform_data ek_button_data = {
 319         .buttons        = ek_buttons,
 320         .nbuttons       = ARRAY_SIZE(ek_buttons),
 321 };
 322
 323 static struct platform_device ek_button_device = {
 324         .name           = "gpio-keys",
 325         .id             = -1,
 326         .num_resources  = 0,
 327         .dev            = {
 328                 .platform_data  = &ek_button_data,
 329         }
 330 };
 331
 332 static void __init ek_add_device_buttons(void)
 333 {
 334         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 335         at91_set_deglitch(AT91_PIN_PC5, 1);
 336         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 337         at91_set_deglitch(AT91_PIN_PC4, 1);
 338
 339         platform_device_register(&ek_button_device);
 340 }
 341 #else
 342 static void __init ek_add_device_buttons(void) {}
 343 #endif
 344
 345
 346 /*
 347  * AC97
 348  * reset_pin is not connected: NRST
 349  */
 350 static struct ac97c_platform_data ek_ac97_data = {
 351         .reset_pin      = -EINVAL,
 352 };
 353
 354
 355 /*
 356  * LEDs ... these could all be PWM-driven, for variable brightness
 357  */
 358 static struct gpio_led ek_leds[] = {
 359         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 360                 .name                   = "ds2",
 361                 .gpio                   = AT91_PIN_PC29,
 362                 .active_low             = 1,
 363                 .default_trigger        = "nand-disk",
 364         },
 365         {       /* "power" led, yellow (could be driven by pwm0) */
 366                 .name                   = "ds3",
 367                 .gpio                   = AT91_PIN_PB7,
 368                 .default_trigger        = "heartbeat",
 369         }
 370 };
 371
 372 /*
 373  * PWM Leds
 374  */
 375 static struct gpio_led ek_pwm_led[] = {
 376         /* For now only DS1 is PWM-driven (by pwm1) */
 377         {
 378                 .name                   = "ds1",
 379                 .gpio                   = 1,    /* is PWM channel number */
 380                 .active_low             = 1,
 381                 .default_trigger        = "none",
 382         }
 383 };
 384
 385 /*
 386  * CAN
 387  */
 388 static void sam9263ek_transceiver_switch(int on)
 389 {
 390         if (on) {
 391                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 392                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 393         } else {
 394                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 395                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 396         }
 397 }
 398
 399 static struct at91_can_data ek_can_data = {
 400         .transceiver_switch = sam9263ek_transceiver_switch,
 401 };
 402
 403 static void __init ek_board_init(void)
 404 {
 405         /* Serial */
 406         /* DBGU on ttyS0. (Rx & Tx only) */
 407         at91_register_uart(0, 0, 0);
 408
 409         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
 410         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 411         at91_add_device_serial();
 412         /* USB Host */
 413         at91_add_device_usbh(&ek_usbh_data);
 414         /* USB Device */
 415         at91_add_device_udc(&ek_udc_data);
 416         /* SPI */
 417         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 418         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 419         /* Touchscreen */
 420         ek_add_device_ts();
 421         /* MMC */
 422         at91_add_device_mmc(1, &ek_mmc_data);
 423         /* Ethernet */
 424         at91_add_device_eth(&ek_macb_data);
 425         /* NAND */
 426         ek_add_device_nand();
 427         /* I2C */
 428         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 429         /* LCD Controller */
 430         at91_add_device_lcdc(&ek_lcdc_data);
 431         /* Push Buttons */
 432         ek_add_device_buttons();
 433         /* AC97 */
 434         at91_add_device_ac97(&ek_ac97_data);
 435         /* LEDs */
 436         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 437         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 438         /* CAN */
 439         at91_add_device_can(&ek_can_data);
 440 }
 441
 442 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 443         /* Maintainer: Atmel */
 444         .timer          = &at91sam926x_timer,
 445         .map_io         = at91_map_io,
 446         .init_early     = ek_init_early,
 447         .init_irq       = at91_init_irq_default,
 448         .init_machine   = ek_board_init,
 449 MACHINE_END