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/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/i2c/at24.h>
  30 #include <linux/fb.h>
  31 #include <linux/gpio_keys.h>
  32 #include <linux/input.h>
  33 #include <linux/leds.h>
  34
  35 #include <video/atmel_lcdc.h>
  36
  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 <mach/hardware.h>
  46 #include <mach/board.h>
  47 #include <mach/gpio.h>
  48 #include <mach/at91sam9_smc.h>
  49
  50 #include "generic.h"
  51
  52
  53 static void __init ek_map_io(void)
  54 {
  55         /* Initialize processor: 16.367 MHz crystal */
  56         at91sam9263_initialize(16367660);
  57
  58         /* DGBU on ttyS0. (Rx & Tx only) */
  59         at91_register_uart(0, 0, 0);
  60
  61         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  62         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  63
  64         /* set serial console to ttyS0 (ie, DBGU) */
  65         at91_set_serial_console(0);
  66 }
  67
  68 static void __init ek_init_irq(void)
  69 {
  70         at91sam9263_init_interrupts(NULL);
  71 }
  72
  73
  74 /*
  75  * USB Host port
  76  */
  77 static struct at91_usbh_data __initdata ek_usbh_data = {
  78         .ports          = 2,
  79         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  80 };
  81
  82 /*
  83  * USB Device port
  84  */
  85 static struct at91_udc_data __initdata ek_udc_data = {
  86         .vbus_pin       = AT91_PIN_PA25,
  87         .pullup_pin     = 0,            /* pull-up driven by UDC */
  88 };
  89
  90
  91 /*
  92  * ADS7846 Touchscreen
  93  */
  94 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  95 static int ads7843_pendown_state(void)
  96 {
  97         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  98 }
  99
 100 static struct ads7846_platform_data ads_info = {
 101         .model                  = 7843,
 102         .x_min                  = 150,
 103         .x_max                  = 3830,
 104         .y_min                  = 190,
 105         .y_max                  = 3830,
 106         .vref_delay_usecs       = 100,
 107         .x_plate_ohms           = 450,
 108         .y_plate_ohms           = 250,
 109         .pressure_max           = 15000,
 110         .debounce_max           = 1,
 111         .debounce_rep           = 0,
 112         .debounce_tol           = (~0),
 113         .get_pendown_state      = ads7843_pendown_state,
 114 };
 115
 116 static void __init ek_add_device_ts(void)
 117 {
 118         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 119         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 120 }
 121 #else
 122 static void __init ek_add_device_ts(void) {}
 123 #endif
 124
 125 /*
 126  * SPI devices.
 127  */
 128 static struct spi_board_info ek_spi_devices[] = {
 129 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 130         {       /* DataFlash card */
 131                 .modalias       = "mtd_dataflash",
 132                 .chip_select    = 0,
 133                 .max_speed_hz   = 15 * 1000 * 1000,
 134                 .bus_num        = 0,
 135         },
 136 #endif
 137 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 138         {
 139                 .modalias       = "ads7846",
 140                 .chip_select    = 3,
 141                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 142                 .bus_num        = 0,
 143                 .platform_data  = &ads_info,
 144                 .irq            = AT91SAM9263_ID_IRQ1,
 145         },
 146 #endif
 147 };
 148
 149
 150 /*
 151  * MCI (SD/MMC)
 152  */
 153 static struct at91_mmc_data __initdata ek_mmc_data = {
 154         .wire4          = 1,
 155         .det_pin        = AT91_PIN_PE18,
 156         .wp_pin         = AT91_PIN_PE19,
 157 //      .vcc_pin        = ... not connected
 158 };
 159
 160
 161 /*
 162  * MACB Ethernet device
 163  */
 164 static struct at91_eth_data __initdata ek_macb_data = {
 165         .phy_irq_pin    = AT91_PIN_PE31,
 166         .is_rmii        = 1,
 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   = SZ_64M,
 178         },
 179         {
 180                 .name   = "Partition 2",
 181                 .offset = MTDPART_OFS_NXTBLK,
 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 atmel_nand_data __initdata ek_nand_data = {
 193         .ale            = 21,
 194         .cle            = 22,
 195 //      .det_pin        = ... not connected
 196         .rdy_pin        = AT91_PIN_PA22,
 197         .enable_pin     = AT91_PIN_PD15,
 198         .partition_info = nand_partitions,
 199 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 200         .bus_width_16   = 1,
 201 #else
 202         .bus_width_16   = 0,
 203 #endif
 204 };
 205
 206
 207 /*
 208  * I2C devices
 209  */
 210 static struct at24_platform_data at24c512 = {
 211         .byte_len       = SZ_512K / 8,
 212         .page_size      = 128,
 213         .flags          = AT24_FLAG_ADDR16,
 214 };
 215
 216
 217 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 218         {
 219                 I2C_BOARD_INFO("24c512", 0x50),
 220                 .platform_data = &at24c512,
 221         },
 222         /* more devices can be added using expansion connectors */
 223 };
 224
 225 /*
 226  * LCD Controller
 227  */
 228 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 229 static struct fb_videomode at91_tft_vga_modes[] = {
 230         {
 231                 .name           = "TX09D50VM1CCA @ 60",
 232                 .refresh        = 60,
 233                 .xres           = 240,          .yres           = 320,
 234                 .pixclock       = KHZ2PICOS(4965),
 235
 236                 .left_margin    = 1,            .right_margin   = 33,
 237                 .upper_margin   = 1,            .lower_margin   = 0,
 238                 .hsync_len      = 5,            .vsync_len      = 1,
 239
 240                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 241                 .vmode          = FB_VMODE_NONINTERLACED,
 242         },
 243 };
 244
 245 static struct fb_monspecs at91fb_default_monspecs = {
 246         .manufacturer   = "HIT",
 247         .monitor        = "TX09D70VM1CCA",
 248
 249         .modedb         = at91_tft_vga_modes,
 250         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 251         .hfmin          = 15000,
 252         .hfmax          = 64000,
 253         .vfmin          = 50,
 254         .vfmax          = 150,
 255 };
 256
 257 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 258                                         | ATMEL_LCDC_DISTYPE_TFT \
 259                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 260
 261 static void at91_lcdc_power_control(int on)
 262 {
 263         at91_set_gpio_value(AT91_PIN_PA30, on);
 264 }
 265
 266 /* Driver datas */
 267 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 268         .lcdcon_is_backlight            = true,
 269         .default_bpp                    = 16,
 270         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 271         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 272         .default_monspecs               = &at91fb_default_monspecs,
 273         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 274         .guard_time                     = 1,
 275 };
 276
 277 #else
 278 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 279 #endif
 280
 281
 282 /*
 283  * GPIO Buttons
 284  */
 285 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 286 static struct gpio_keys_button ek_buttons[] = {
 287         {       /* BP1, "leftclic" */
 288                 .code           = BTN_LEFT,
 289                 .gpio           = AT91_PIN_PC5,
 290                 .active_low     = 1,
 291                 .desc           = "left_click",
 292                 .wakeup         = 1,
 293         },
 294         {       /* BP2, "rightclic" */
 295                 .code           = BTN_RIGHT,
 296                 .gpio           = AT91_PIN_PC4,
 297                 .active_low     = 1,
 298                 .desc           = "right_click",
 299                 .wakeup         = 1,
 300         }
 301 };
 302
 303 static struct gpio_keys_platform_data ek_button_data = {
 304         .buttons        = ek_buttons,
 305         .nbuttons       = ARRAY_SIZE(ek_buttons),
 306 };
 307
 308 static struct platform_device ek_button_device = {
 309         .name           = "gpio-keys",
 310         .id             = -1,
 311         .num_resources  = 0,
 312         .dev            = {
 313                 .platform_data  = &ek_button_data,
 314         }
 315 };
 316
 317 static void __init ek_add_device_buttons(void)
 318 {
 319         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 320         at91_set_deglitch(AT91_PIN_PC5, 1);
 321         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 322         at91_set_deglitch(AT91_PIN_PC4, 1);
 323
 324         platform_device_register(&ek_button_device);
 325 }
 326 #else
 327 static void __init ek_add_device_buttons(void) {}
 328 #endif
 329
 330
 331 /*
 332  * AC97
 333  */
 334 static struct atmel_ac97_data ek_ac97_data = {
 335         .reset_pin      = AT91_PIN_PA13,
 336 };
 337
 338
 339 /*
 340  * LEDs ... these could all be PWM-driven, for variable brightness
 341  */
 342 static struct gpio_led ek_leds[] = {
 343         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 344                 .name                   = "ds2",
 345                 .gpio                   = AT91_PIN_PC29,
 346                 .active_low             = 1,
 347                 .default_trigger        = "nand-disk",
 348         },
 349         {       /* "power" led, yellow (could be driven by pwm0) */
 350                 .name                   = "ds3",
 351                 .gpio                   = AT91_PIN_PB7,
 352                 .default_trigger        = "heartbeat",
 353         }
 354 };
 355
 356 /*
 357  * PWM Leds
 358  */
 359 static struct gpio_led ek_pwm_led[] = {
 360         /* For now only DS1 is PWM-driven (by pwm1) */
 361         {
 362                 .name                   = "ds1",
 363                 .gpio                   = 1,    /* is PWM channel number */
 364                 .active_low             = 1,
 365                 .default_trigger        = "none",
 366         }
 367 };
 368
 369
 370 static void __init ek_board_init(void)
 371 {
 372         /* Serial */
 373         at91_add_device_serial();
 374         /* USB Host */
 375         at91_add_device_usbh(&ek_usbh_data);
 376         /* USB Device */
 377         at91_add_device_udc(&ek_udc_data);
 378         /* SPI */
 379         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 380         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 381         /* Touchscreen */
 382         ek_add_device_ts();
 383         /* MMC */
 384         at91_add_device_mmc(1, &ek_mmc_data);
 385         /* Ethernet */
 386         at91_add_device_eth(&ek_macb_data);
 387         /* NAND */
 388         at91_add_device_nand(&ek_nand_data);
 389         /* I2C */
 390         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 391         /* LCD Controller */
 392         at91_add_device_lcdc(&ek_lcdc_data);
 393         /* Push Buttons */
 394         ek_add_device_buttons();
 395         /* AC97 */
 396         at91_add_device_ac97(&ek_ac97_data);
 397         /* LEDs */
 398         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 399         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 400 }
 401
 402 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 403         /* Maintainer: Atmel */
 404         .phys_io        = AT91_BASE_SYS,
 405         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 406         .boot_params    = AT91_SDRAM_BASE + 0x100,
 407         .timer          = &at91sam926x_timer,
 408         .map_io         = ek_map_io,
 409         .init_irq       = ek_init_irq,
 410         .init_machine   = ek_board_init,
 411 MACHINE_END