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 };
  78
  79 /*
  80  * USB Device port
  81  */
  82 static struct at91_udc_data __initdata ek_udc_data = {
  83         .vbus_pin       = AT91_PIN_PA25,
  84         .pullup_pin     = 0,            /* pull-up driven by UDC */
  85 };
  86
  87
  88 /*
  89  * ADS7846 Touchscreen
  90  */
  91 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  92 static int ads7843_pendown_state(void)
  93 {
  94         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  95 }
  96
  97 static struct ads7846_platform_data ads_info = {
  98         .model                  = 7843,
  99         .x_min                  = 150,
 100         .x_max                  = 3830,
 101         .y_min                  = 190,
 102         .y_max                  = 3830,
 103         .vref_delay_usecs       = 100,
 104         .x_plate_ohms           = 450,
 105         .y_plate_ohms           = 250,
 106         .pressure_max           = 15000,
 107         .debounce_max           = 1,
 108         .debounce_rep           = 0,
 109         .debounce_tol           = (~0),
 110         .get_pendown_state      = ads7843_pendown_state,
 111 };
 112
 113 static void __init ek_add_device_ts(void)
 114 {
 115         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 116         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 117 }
 118 #else
 119 static void __init ek_add_device_ts(void) {}
 120 #endif
 121
 122 /*
 123  * SPI devices.
 124  */
 125 static struct spi_board_info ek_spi_devices[] = {
 126 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 127         {       /* DataFlash card */
 128                 .modalias       = "mtd_dataflash",
 129                 .chip_select    = 0,
 130                 .max_speed_hz   = 15 * 1000 * 1000,
 131                 .bus_num        = 0,
 132         },
 133 #endif
 134 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 135         {
 136                 .modalias       = "ads7846",
 137                 .chip_select    = 3,
 138                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 139                 .bus_num        = 0,
 140                 .platform_data  = &ads_info,
 141                 .irq            = AT91SAM9263_ID_IRQ1,
 142         },
 143 #endif
 144 };
 145
 146
 147 /*
 148  * MCI (SD/MMC)
 149  */
 150 static struct at91_mmc_data __initdata ek_mmc_data = {
 151         .wire4          = 1,
 152         .det_pin        = AT91_PIN_PE18,
 153         .wp_pin         = AT91_PIN_PE19,
 154 //      .vcc_pin        = ... not connected
 155 };
 156
 157
 158 /*
 159  * MACB Ethernet device
 160  */
 161 static struct at91_eth_data __initdata ek_macb_data = {
 162         .phy_irq_pin    = AT91_PIN_PE31,
 163         .is_rmii        = 1,
 164 };
 165
 166
 167 /*
 168  * NAND flash
 169  */
 170 static struct mtd_partition __initdata ek_nand_partition[] = {
 171         {
 172                 .name   = "Partition 1",
 173                 .offset = 0,
 174                 .size   = SZ_64M,
 175         },
 176         {
 177                 .name   = "Partition 2",
 178                 .offset = MTDPART_OFS_NXTBLK,
 179                 .size   = MTDPART_SIZ_FULL,
 180         },
 181 };
 182
 183 static struct atmel_nand_data __initdata ek_nand_data = {
 184         .ale            = 21,
 185         .cle            = 22,
 186 //      .det_pin        = ... not connected
 187         .rdy_pin        = AT91_PIN_PA22,
 188         .enable_pin     = AT91_PIN_PD15,
 189         .parts          = ek_nand_partition,
 190         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 191 };
 192
 193 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 194         .ncs_read_setup         = 0,
 195         .nrd_setup              = 1,
 196         .ncs_write_setup        = 0,
 197         .nwe_setup              = 1,
 198
 199         .ncs_read_pulse         = 3,
 200         .nrd_pulse              = 3,
 201         .ncs_write_pulse        = 3,
 202         .nwe_pulse              = 3,
 203
 204         .read_cycle             = 5,
 205         .write_cycle            = 5,
 206
 207         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 208         .tdf_cycles             = 2,
 209 };
 210
 211 static void __init ek_add_device_nand(void)
 212 {
 213         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 214         /* setup bus-width (8 or 16) */
 215         if (ek_nand_data.bus_width_16)
 216                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 217         else
 218                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 219
 220         /* configure chip-select 3 (NAND) */
 221         sam9_smc_configure(3, &ek_nand_smc_config);
 222
 223         at91_add_device_nand(&ek_nand_data);
 224 }
 225
 226
 227 /*
 228  * I2C devices
 229  */
 230 static struct at24_platform_data at24c512 = {
 231         .byte_len       = SZ_512K / 8,
 232         .page_size      = 128,
 233         .flags          = AT24_FLAG_ADDR16,
 234 };
 235
 236
 237 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 238         {
 239                 I2C_BOARD_INFO("24c512", 0x50),
 240                 .platform_data = &at24c512,
 241         },
 242         /* more devices can be added using expansion connectors */
 243 };
 244
 245 /*
 246  * LCD Controller
 247  */
 248 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 249 static struct fb_videomode at91_tft_vga_modes[] = {
 250         {
 251                 .name           = "TX09D50VM1CCA @ 60",
 252                 .refresh        = 60,
 253                 .xres           = 240,          .yres           = 320,
 254                 .pixclock       = KHZ2PICOS(4965),
 255
 256                 .left_margin    = 1,            .right_margin   = 34,
 257                 .upper_margin   = 1,            .lower_margin   = 0,
 258                 .hsync_len      = 5,            .vsync_len      = 1,
 259
 260                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 261                 .vmode          = FB_VMODE_NONINTERLACED,
 262         },
 263 };
 264
 265 static struct fb_monspecs at91fb_default_monspecs = {
 266         .manufacturer   = "HIT",
 267         .monitor        = "TX09D70VM1CCA",
 268
 269         .modedb         = at91_tft_vga_modes,
 270         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 271         .hfmin          = 15000,
 272         .hfmax          = 64000,
 273         .vfmin          = 50,
 274         .vfmax          = 150,
 275 };
 276
 277 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 278                                         | ATMEL_LCDC_DISTYPE_TFT \
 279                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 280
 281 static void at91_lcdc_power_control(int on)
 282 {
 283         at91_set_gpio_value(AT91_PIN_PA30, on);
 284 }
 285
 286 /* Driver datas */
 287 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 288         .lcdcon_is_backlight            = true,
 289         .default_bpp                    = 16,
 290         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 291         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 292         .default_monspecs               = &at91fb_default_monspecs,
 293         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 294         .guard_time                     = 1,
 295 };
 296
 297 #else
 298 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 299 #endif
 300
 301
 302 /*
 303  * GPIO Buttons
 304  */
 305 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 306 static struct gpio_keys_button ek_buttons[] = {
 307         {       /* BP1, "leftclic" */
 308                 .code           = BTN_LEFT,
 309                 .gpio           = AT91_PIN_PC5,
 310                 .active_low     = 1,
 311                 .desc           = "left_click",
 312                 .wakeup         = 1,
 313         },
 314         {       /* BP2, "rightclic" */
 315                 .code           = BTN_RIGHT,
 316                 .gpio           = AT91_PIN_PC4,
 317                 .active_low     = 1,
 318                 .desc           = "right_click",
 319                 .wakeup         = 1,
 320         }
 321 };
 322
 323 static struct gpio_keys_platform_data ek_button_data = {
 324         .buttons        = ek_buttons,
 325         .nbuttons       = ARRAY_SIZE(ek_buttons),
 326 };
 327
 328 static struct platform_device ek_button_device = {
 329         .name           = "gpio-keys",
 330         .id             = -1,
 331         .num_resources  = 0,
 332         .dev            = {
 333                 .platform_data  = &ek_button_data,
 334         }
 335 };
 336
 337 static void __init ek_add_device_buttons(void)
 338 {
 339         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 340         at91_set_deglitch(AT91_PIN_PC5, 1);
 341         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 342         at91_set_deglitch(AT91_PIN_PC4, 1);
 343
 344         platform_device_register(&ek_button_device);
 345 }
 346 #else
 347 static void __init ek_add_device_buttons(void) {}
 348 #endif
 349
 350
 351 /*
 352  * AC97
 353  * reset_pin is not connected: NRST
 354  */
 355 static struct ac97c_platform_data ek_ac97_data = {
 356 };
 357
 358
 359 /*
 360  * LEDs ... these could all be PWM-driven, for variable brightness
 361  */
 362 static struct gpio_led ek_leds[] = {
 363         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 364                 .name                   = "ds2",
 365                 .gpio                   = AT91_PIN_PC29,
 366                 .active_low             = 1,
 367                 .default_trigger        = "nand-disk",
 368         },
 369         {       /* "power" led, yellow (could be driven by pwm0) */
 370                 .name                   = "ds3",
 371                 .gpio                   = AT91_PIN_PB7,
 372                 .default_trigger        = "heartbeat",
 373         }
 374 };
 375
 376 /*
 377  * PWM Leds
 378  */
 379 static struct gpio_led ek_pwm_led[] = {
 380         /* For now only DS1 is PWM-driven (by pwm1) */
 381         {
 382                 .name                   = "ds1",
 383                 .gpio                   = 1,    /* is PWM channel number */
 384                 .active_low             = 1,
 385                 .default_trigger        = "none",
 386         }
 387 };
 388
 389 /*
 390  * CAN
 391  */
 392 static void sam9263ek_transceiver_switch(int on)
 393 {
 394         if (on) {
 395                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 396                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 397         } else {
 398                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 399                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 400         }
 401 }
 402
 403 static struct at91_can_data ek_can_data = {
 404         .transceiver_switch = sam9263ek_transceiver_switch,
 405 };
 406
 407 static void __init ek_board_init(void)
 408 {
 409         /* Serial */
 410         at91_add_device_serial();
 411         /* USB Host */
 412         at91_add_device_usbh(&ek_usbh_data);
 413         /* USB Device */
 414         at91_add_device_udc(&ek_udc_data);
 415         /* SPI */
 416         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 417         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 418         /* Touchscreen */
 419         ek_add_device_ts();
 420         /* MMC */
 421         at91_add_device_mmc(1, &ek_mmc_data);
 422         /* Ethernet */
 423         at91_add_device_eth(&ek_macb_data);
 424         /* NAND */
 425         ek_add_device_nand();
 426         /* I2C */
 427         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 428         /* LCD Controller */
 429         at91_add_device_lcdc(&ek_lcdc_data);
 430         /* Push Buttons */
 431         ek_add_device_buttons();
 432         /* AC97 */
 433         at91_add_device_ac97(&ek_ac97_data);
 434         /* LEDs */
 435         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 436         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 437         /* CAN */
 438         at91_add_device_can(&ek_can_data);
 439 }
 440
 441 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 442         /* Maintainer: Atmel */
 443         .timer          = &at91sam926x_timer,
 444         .map_io         = at91_map_io,
 445         .init_early     = ek_init_early,
 446         .init_irq       = at91_init_irq_default,
 447         .init_machine   = ek_board_init,
 448 MACHINE_END