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         /* DBGU on ttyS0. (Rx & Tx only) */
  62         at91_register_uart(0, 0, 0);
  63
  64         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  65         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  66
  67         /* set serial console to ttyS0 (ie, DBGU) */
  68         at91_set_serial_console(0);
  69 }
  70
  71 /*
  72  * USB Host port
  73  */
  74 static struct at91_usbh_data __initdata ek_usbh_data = {
  75         .ports          = 2,
  76         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  77         .overcurrent_pin= {-EINVAL, -EINVAL},
  78 };
  79
  80 /*
  81  * USB Device port
  82  */
  83 static struct at91_udc_data __initdata ek_udc_data = {
  84         .vbus_pin       = AT91_PIN_PA25,
  85         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  86 };
  87
  88
  89 /*
  90  * ADS7846 Touchscreen
  91  */
  92 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  93 static int ads7843_pendown_state(void)
  94 {
  95         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  96 }
  97
  98 static struct ads7846_platform_data ads_info = {
  99         .model                  = 7843,
 100         .x_min                  = 150,
 101         .x_max                  = 3830,
 102         .y_min                  = 190,
 103         .y_max                  = 3830,
 104         .vref_delay_usecs       = 100,
 105         .x_plate_ohms           = 450,
 106         .y_plate_ohms           = 250,
 107         .pressure_max           = 15000,
 108         .debounce_max           = 1,
 109         .debounce_rep           = 0,
 110         .debounce_tol           = (~0),
 111         .get_pendown_state      = ads7843_pendown_state,
 112 };
 113
 114 static void __init ek_add_device_ts(void)
 115 {
 116         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 117         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 118 }
 119 #else
 120 static void __init ek_add_device_ts(void) {}
 121 #endif
 122
 123 /*
 124  * SPI devices.
 125  */
 126 static struct spi_board_info ek_spi_devices[] = {
 127 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 128         {       /* DataFlash card */
 129                 .modalias       = "mtd_dataflash",
 130                 .chip_select    = 0,
 131                 .max_speed_hz   = 15 * 1000 * 1000,
 132                 .bus_num        = 0,
 133         },
 134 #endif
 135 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 136         {
 137                 .modalias       = "ads7846",
 138                 .chip_select    = 3,
 139                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 140                 .bus_num        = 0,
 141                 .platform_data  = &ads_info,
 142                 .irq            = AT91SAM9263_ID_IRQ1,
 143         },
 144 #endif
 145 };
 146
 147
 148 /*
 149  * MCI (SD/MMC)
 150  */
 151 static struct at91_mmc_data __initdata ek_mmc_data = {
 152         .wire4          = 1,
 153         .det_pin        = AT91_PIN_PE18,
 154         .wp_pin         = AT91_PIN_PE19,
 155         .vcc_pin        = -EINVAL,
 156 };
 157
 158
 159 /*
 160  * MACB Ethernet device
 161  */
 162 static struct macb_platform_data __initdata ek_macb_data = {
 163         .phy_irq_pin    = AT91_PIN_PE31,
 164         .is_rmii        = 1,
 165 };
 166
 167
 168 /*
 169  * NAND flash
 170  */
 171 static struct mtd_partition __initdata ek_nand_partition[] = {
 172         {
 173                 .name   = "Partition 1",
 174                 .offset = 0,
 175                 .size   = SZ_64M,
 176         },
 177         {
 178                 .name   = "Partition 2",
 179                 .offset = MTDPART_OFS_NXTBLK,
 180                 .size   = MTDPART_SIZ_FULL,
 181         },
 182 };
 183
 184 static struct atmel_nand_data __initdata ek_nand_data = {
 185         .ale            = 21,
 186         .cle            = 22,
 187         .det_pin        = -EINVAL,
 188         .rdy_pin        = AT91_PIN_PA22,
 189         .enable_pin     = AT91_PIN_PD15,
 190         .parts          = ek_nand_partition,
 191         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 192 };
 193
 194 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 195         .ncs_read_setup         = 0,
 196         .nrd_setup              = 1,
 197         .ncs_write_setup        = 0,
 198         .nwe_setup              = 1,
 199
 200         .ncs_read_pulse         = 3,
 201         .nrd_pulse              = 3,
 202         .ncs_write_pulse        = 3,
 203         .nwe_pulse              = 3,
 204
 205         .read_cycle             = 5,
 206         .write_cycle            = 5,
 207
 208         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 209         .tdf_cycles             = 2,
 210 };
 211
 212 static void __init ek_add_device_nand(void)
 213 {
 214         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 215         /* setup bus-width (8 or 16) */
 216         if (ek_nand_data.bus_width_16)
 217                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 218         else
 219                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 220
 221         /* configure chip-select 3 (NAND) */
 222         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 223
 224         at91_add_device_nand(&ek_nand_data);
 225 }
 226
 227
 228 /*
 229  * I2C devices
 230  */
 231 static struct at24_platform_data at24c512 = {
 232         .byte_len       = SZ_512K / 8,
 233         .page_size      = 128,
 234         .flags          = AT24_FLAG_ADDR16,
 235 };
 236
 237
 238 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 239         {
 240                 I2C_BOARD_INFO("24c512", 0x50),
 241                 .platform_data = &at24c512,
 242         },
 243         /* more devices can be added using expansion connectors */
 244 };
 245
 246 /*
 247  * LCD Controller
 248  */
 249 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 250 static struct fb_videomode at91_tft_vga_modes[] = {
 251         {
 252                 .name           = "TX09D50VM1CCA @ 60",
 253                 .refresh        = 60,
 254                 .xres           = 240,          .yres           = 320,
 255                 .pixclock       = KHZ2PICOS(4965),
 256
 257                 .left_margin    = 1,            .right_margin   = 33,
 258                 .upper_margin   = 1,            .lower_margin   = 0,
 259                 .hsync_len      = 5,            .vsync_len      = 1,
 260
 261                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 262                 .vmode          = FB_VMODE_NONINTERLACED,
 263         },
 264 };
 265
 266 static struct fb_monspecs at91fb_default_monspecs = {
 267         .manufacturer   = "HIT",
 268         .monitor        = "TX09D70VM1CCA",
 269
 270         .modedb         = at91_tft_vga_modes,
 271         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 272         .hfmin          = 15000,
 273         .hfmax          = 64000,
 274         .vfmin          = 50,
 275         .vfmax          = 150,
 276 };
 277
 278 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 279                                         | ATMEL_LCDC_DISTYPE_TFT \
 280                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 281
 282 static void at91_lcdc_power_control(int on)
 283 {
 284         at91_set_gpio_value(AT91_PIN_PA30, on);
 285 }
 286
 287 /* Driver datas */
 288 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 289         .lcdcon_is_backlight            = true,
 290         .default_bpp                    = 16,
 291         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 292         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 293         .default_monspecs               = &at91fb_default_monspecs,
 294         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 295         .guard_time                     = 1,
 296 };
 297
 298 #else
 299 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 300 #endif
 301
 302
 303 /*
 304  * GPIO Buttons
 305  */
 306 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 307 static struct gpio_keys_button ek_buttons[] = {
 308         {       /* BP1, "leftclic" */
 309                 .code           = BTN_LEFT,
 310                 .gpio           = AT91_PIN_PC5,
 311                 .active_low     = 1,
 312                 .desc           = "left_click",
 313                 .wakeup         = 1,
 314         },
 315         {       /* BP2, "rightclic" */
 316                 .code           = BTN_RIGHT,
 317                 .gpio           = AT91_PIN_PC4,
 318                 .active_low     = 1,
 319                 .desc           = "right_click",
 320                 .wakeup         = 1,
 321         }
 322 };
 323
 324 static struct gpio_keys_platform_data ek_button_data = {
 325         .buttons        = ek_buttons,
 326         .nbuttons       = ARRAY_SIZE(ek_buttons),
 327 };
 328
 329 static struct platform_device ek_button_device = {
 330         .name           = "gpio-keys",
 331         .id             = -1,
 332         .num_resources  = 0,
 333         .dev            = {
 334                 .platform_data  = &ek_button_data,
 335         }
 336 };
 337
 338 static void __init ek_add_device_buttons(void)
 339 {
 340         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 341         at91_set_deglitch(AT91_PIN_PC5, 1);
 342         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 343         at91_set_deglitch(AT91_PIN_PC4, 1);
 344
 345         platform_device_register(&ek_button_device);
 346 }
 347 #else
 348 static void __init ek_add_device_buttons(void) {}
 349 #endif
 350
 351
 352 /*
 353  * AC97
 354  * reset_pin is not connected: NRST
 355  */
 356 static struct ac97c_platform_data ek_ac97_data = {
 357         .reset_pin      = -EINVAL,
 358 };
 359
 360
 361 /*
 362  * LEDs ... these could all be PWM-driven, for variable brightness
 363  */
 364 static struct gpio_led ek_leds[] = {
 365         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 366                 .name                   = "ds2",
 367                 .gpio                   = AT91_PIN_PC29,
 368                 .active_low             = 1,
 369                 .default_trigger        = "nand-disk",
 370         },
 371         {       /* "power" led, yellow (could be driven by pwm0) */
 372                 .name                   = "ds3",
 373                 .gpio                   = AT91_PIN_PB7,
 374                 .default_trigger        = "heartbeat",
 375         }
 376 };
 377
 378 /*
 379  * PWM Leds
 380  */
 381 static struct gpio_led ek_pwm_led[] = {
 382         /* For now only DS1 is PWM-driven (by pwm1) */
 383         {
 384                 .name                   = "ds1",
 385                 .gpio                   = 1,    /* is PWM channel number */
 386                 .active_low             = 1,
 387                 .default_trigger        = "none",
 388         }
 389 };
 390
 391 /*
 392  * CAN
 393  */
 394 static void sam9263ek_transceiver_switch(int on)
 395 {
 396         if (on) {
 397                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 398                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 399         } else {
 400                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 401                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 402         }
 403 }
 404
 405 static struct at91_can_data ek_can_data = {
 406         .transceiver_switch = sam9263ek_transceiver_switch,
 407 };
 408
 409 static void __init ek_board_init(void)
 410 {
 411         /* Serial */
 412         at91_add_device_serial();
 413         /* USB Host */
 414         at91_add_device_usbh(&ek_usbh_data);
 415         /* USB Device */
 416         at91_add_device_udc(&ek_udc_data);
 417         /* SPI */
 418         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 419         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 420         /* Touchscreen */
 421         ek_add_device_ts();
 422         /* MMC */
 423         at91_add_device_mmc(1, &ek_mmc_data);
 424         /* Ethernet */
 425         at91_add_device_eth(&ek_macb_data);
 426         /* NAND */
 427         ek_add_device_nand();
 428         /* I2C */
 429         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 430         /* LCD Controller */
 431         at91_add_device_lcdc(&ek_lcdc_data);
 432         /* Push Buttons */
 433         ek_add_device_buttons();
 434         /* AC97 */
 435         at91_add_device_ac97(&ek_ac97_data);
 436         /* LEDs */
 437         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 438         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 439         /* CAN */
 440         at91_add_device_can(&ek_can_data);
 441 }
 442
 443 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 444         /* Maintainer: Atmel */
 445         .timer          = &at91sam926x_timer,
 446         .map_io         = at91_map_io,
 447         .init_early     = ek_init_early,
 448         .init_irq       = at91_init_irq_default,
 449         .init_machine   = ek_board_init,
 450 MACHINE_END