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 mtd_partition * __init nand_partitions(int size, int *num_partitions)
 184 {
 185         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 186         return ek_nand_partition;
 187 }
 188
 189 static struct atmel_nand_data __initdata ek_nand_data = {
 190         .ale            = 21,
 191         .cle            = 22,
 192 //      .det_pin        = ... not connected
 193         .rdy_pin        = AT91_PIN_PA22,
 194         .enable_pin     = AT91_PIN_PD15,
 195         .partition_info = nand_partitions,
 196 };
 197
 198 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 199         .ncs_read_setup         = 0,
 200         .nrd_setup              = 1,
 201         .ncs_write_setup        = 0,
 202         .nwe_setup              = 1,
 203
 204         .ncs_read_pulse         = 3,
 205         .nrd_pulse              = 3,
 206         .ncs_write_pulse        = 3,
 207         .nwe_pulse              = 3,
 208
 209         .read_cycle             = 5,
 210         .write_cycle            = 5,
 211
 212         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 213         .tdf_cycles             = 2,
 214 };
 215
 216 static void __init ek_add_device_nand(void)
 217 {
 218         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 219         /* setup bus-width (8 or 16) */
 220         if (ek_nand_data.bus_width_16)
 221                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 222         else
 223                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 224
 225         /* configure chip-select 3 (NAND) */
 226         sam9_smc_configure(3, &ek_nand_smc_config);
 227
 228         at91_add_device_nand(&ek_nand_data);
 229 }
 230
 231
 232 /*
 233  * I2C devices
 234  */
 235 static struct at24_platform_data at24c512 = {
 236         .byte_len       = SZ_512K / 8,
 237         .page_size      = 128,
 238         .flags          = AT24_FLAG_ADDR16,
 239 };
 240
 241
 242 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 243         {
 244                 I2C_BOARD_INFO("24c512", 0x50),
 245                 .platform_data = &at24c512,
 246         },
 247         /* more devices can be added using expansion connectors */
 248 };
 249
 250 /*
 251  * LCD Controller
 252  */
 253 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 254 static struct fb_videomode at91_tft_vga_modes[] = {
 255         {
 256                 .name           = "TX09D50VM1CCA @ 60",
 257                 .refresh        = 60,
 258                 .xres           = 240,          .yres           = 320,
 259                 .pixclock       = KHZ2PICOS(4965),
 260
 261                 .left_margin    = 1,            .right_margin   = 33,
 262                 .upper_margin   = 1,            .lower_margin   = 0,
 263                 .hsync_len      = 5,            .vsync_len      = 1,
 264
 265                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 266                 .vmode          = FB_VMODE_NONINTERLACED,
 267         },
 268 };
 269
 270 static struct fb_monspecs at91fb_default_monspecs = {
 271         .manufacturer   = "HIT",
 272         .monitor        = "TX09D70VM1CCA",
 273
 274         .modedb         = at91_tft_vga_modes,
 275         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 276         .hfmin          = 15000,
 277         .hfmax          = 64000,
 278         .vfmin          = 50,
 279         .vfmax          = 150,
 280 };
 281
 282 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 283                                         | ATMEL_LCDC_DISTYPE_TFT \
 284                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 285
 286 static void at91_lcdc_power_control(int on)
 287 {
 288         at91_set_gpio_value(AT91_PIN_PA30, on);
 289 }
 290
 291 /* Driver datas */
 292 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 293         .lcdcon_is_backlight            = true,
 294         .default_bpp                    = 16,
 295         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 296         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 297         .default_monspecs               = &at91fb_default_monspecs,
 298         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 299         .guard_time                     = 1,
 300 };
 301
 302 #else
 303 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 304 #endif
 305
 306
 307 /*
 308  * GPIO Buttons
 309  */
 310 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 311 static struct gpio_keys_button ek_buttons[] = {
 312         {       /* BP1, "leftclic" */
 313                 .code           = BTN_LEFT,
 314                 .gpio           = AT91_PIN_PC5,
 315                 .active_low     = 1,
 316                 .desc           = "left_click",
 317                 .wakeup         = 1,
 318         },
 319         {       /* BP2, "rightclic" */
 320                 .code           = BTN_RIGHT,
 321                 .gpio           = AT91_PIN_PC4,
 322                 .active_low     = 1,
 323                 .desc           = "right_click",
 324                 .wakeup         = 1,
 325         }
 326 };
 327
 328 static struct gpio_keys_platform_data ek_button_data = {
 329         .buttons        = ek_buttons,
 330         .nbuttons       = ARRAY_SIZE(ek_buttons),
 331 };
 332
 333 static struct platform_device ek_button_device = {
 334         .name           = "gpio-keys",
 335         .id             = -1,
 336         .num_resources  = 0,
 337         .dev            = {
 338                 .platform_data  = &ek_button_data,
 339         }
 340 };
 341
 342 static void __init ek_add_device_buttons(void)
 343 {
 344         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 345         at91_set_deglitch(AT91_PIN_PC5, 1);
 346         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 347         at91_set_deglitch(AT91_PIN_PC4, 1);
 348
 349         platform_device_register(&ek_button_device);
 350 }
 351 #else
 352 static void __init ek_add_device_buttons(void) {}
 353 #endif
 354
 355
 356 /*
 357  * AC97
 358  * reset_pin is not connected: NRST
 359  */
 360 static struct ac97c_platform_data ek_ac97_data = {
 361 };
 362
 363
 364 /*
 365  * LEDs ... these could all be PWM-driven, for variable brightness
 366  */
 367 static struct gpio_led ek_leds[] = {
 368         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 369                 .name                   = "ds2",
 370                 .gpio                   = AT91_PIN_PC29,
 371                 .active_low             = 1,
 372                 .default_trigger        = "nand-disk",
 373         },
 374         {       /* "power" led, yellow (could be driven by pwm0) */
 375                 .name                   = "ds3",
 376                 .gpio                   = AT91_PIN_PB7,
 377                 .default_trigger        = "heartbeat",
 378         }
 379 };
 380
 381 /*
 382  * PWM Leds
 383  */
 384 static struct gpio_led ek_pwm_led[] = {
 385         /* For now only DS1 is PWM-driven (by pwm1) */
 386         {
 387                 .name                   = "ds1",
 388                 .gpio                   = 1,    /* is PWM channel number */
 389                 .active_low             = 1,
 390                 .default_trigger        = "none",
 391         }
 392 };
 393
 394 /*
 395  * CAN
 396  */
 397 static void sam9263ek_transceiver_switch(int on)
 398 {
 399         if (on) {
 400                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 401                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 402         } else {
 403                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 404                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 405         }
 406 }
 407
 408 static struct at91_can_data ek_can_data = {
 409         .transceiver_switch = sam9263ek_transceiver_switch,
 410 };
 411
 412 static void __init ek_board_init(void)
 413 {
 414         /* Serial */
 415         at91_add_device_serial();
 416         /* USB Host */
 417         at91_add_device_usbh(&ek_usbh_data);
 418         /* USB Device */
 419         at91_add_device_udc(&ek_udc_data);
 420         /* SPI */
 421         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 422         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 423         /* Touchscreen */
 424         ek_add_device_ts();
 425         /* MMC */
 426         at91_add_device_mmc(1, &ek_mmc_data);
 427         /* Ethernet */
 428         at91_add_device_eth(&ek_macb_data);
 429         /* NAND */
 430         ek_add_device_nand();
 431         /* I2C */
 432         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 433         /* LCD Controller */
 434         at91_add_device_lcdc(&ek_lcdc_data);
 435         /* Push Buttons */
 436         ek_add_device_buttons();
 437         /* AC97 */
 438         at91_add_device_ac97(&ek_ac97_data);
 439         /* LEDs */
 440         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 441         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 442         /* CAN */
 443         at91_add_device_can(&ek_can_data);
 444 }
 445
 446 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 447         /* Maintainer: Atmel */
 448         .timer          = &at91sam926x_timer,
 449         .map_io         = at91_map_io,
 450         .init_early     = ek_init_early,
 451         .init_irq       = at91_init_irq_default,
 452         .init_machine   = ek_board_init,
 453 MACHINE_END