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/fb.h>
  30 #include <linux/gpio_keys.h>
  31 #include <linux/input.h>
  32
  33 #include <video/atmel_lcdc.h>
  34
  35 #include <asm/hardware.h>
  36 #include <asm/setup.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/irq.h>
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42 #include <asm/mach/irq.h>
  43
  44 #include <asm/arch/board.h>
  45 #include <asm/arch/gpio.h>
  46 #include <asm/arch/at91sam926x_mc.h>
  47
  48 #include "generic.h"
  49
  50
  51 /*
  52  * Serial port configuration.
  53  *    0 .. 2 = USART0 .. USART2
  54  *    3      = DBGU
  55  */
  56 static struct at91_uart_config __initdata ek_uart_config = {
  57         .console_tty    = 0,                            /* ttyS0 */
  58         .nr_tty         = 2,
  59         .tty_map        = { 3, 0, -1, -1, }             /* ttyS0, ..., ttyS3 */
  60 };
  61
  62 static void __init ek_map_io(void)
  63 {
  64         /* Initialize processor: 16.367 MHz crystal */
  65         at91sam9263_initialize(16367660);
  66
  67         /* Setup the serial ports and console */
  68         at91_init_serial(&ek_uart_config);
  69 }
  70
  71 static void __init ek_init_irq(void)
  72 {
  73         at91sam9263_init_interrupts(NULL);
  74 }
  75
  76
  77 /*
  78  * USB Host port
  79  */
  80 static struct at91_usbh_data __initdata ek_usbh_data = {
  81         .ports          = 2,
  82         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  83 };
  84
  85 /*
  86  * USB Device port
  87  */
  88 static struct at91_udc_data __initdata ek_udc_data = {
  89         .vbus_pin       = AT91_PIN_PA25,
  90         .pullup_pin     = 0,            /* pull-up driven by UDC */
  91 };
  92
  93
  94 /*
  95  * ADS7846 Touchscreen
  96  */
  97 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  98 static int ads7843_pendown_state(void)
  99 {
 100         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
 101 }
 102
 103 static struct ads7846_platform_data ads_info = {
 104         .model                  = 7843,
 105         .x_min                  = 150,
 106         .x_max                  = 3830,
 107         .y_min                  = 190,
 108         .y_max                  = 3830,
 109         .vref_delay_usecs       = 100,
 110         .x_plate_ohms           = 450,
 111         .y_plate_ohms           = 250,
 112         .pressure_max           = 15000,
 113         .debounce_max           = 1,
 114         .debounce_rep           = 0,
 115         .debounce_tol           = (~0),
 116         .get_pendown_state      = ads7843_pendown_state,
 117 };
 118
 119 static void __init ek_add_device_ts(void)
 120 {
 121         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 122         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 123 }
 124 #else
 125 static void __init ek_add_device_ts(void) {}
 126 #endif
 127
 128 /*
 129  * SPI devices.
 130  */
 131 static struct spi_board_info ek_spi_devices[] = {
 132 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 133         {       /* DataFlash card */
 134                 .modalias       = "mtd_dataflash",
 135                 .chip_select    = 0,
 136                 .max_speed_hz   = 15 * 1000 * 1000,
 137                 .bus_num        = 0,
 138         },
 139 #endif
 140 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 141         {
 142                 .modalias       = "ads7846",
 143                 .chip_select    = 3,
 144                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 145                 .bus_num        = 0,
 146                 .platform_data  = &ads_info,
 147                 .irq            = AT91SAM9263_ID_IRQ1,
 148         },
 149 #endif
 150 };
 151
 152
 153 /*
 154  * MCI (SD/MMC)
 155  */
 156 static struct at91_mmc_data __initdata ek_mmc_data = {
 157         .wire4          = 1,
 158         .det_pin        = AT91_PIN_PE18,
 159         .wp_pin         = AT91_PIN_PE19,
 160 //      .vcc_pin        = ... not connected
 161 };
 162
 163
 164 /*
 165  * MACB Ethernet device
 166  */
 167 static struct at91_eth_data __initdata ek_macb_data = {
 168         .phy_irq_pin    = AT91_PIN_PE31,
 169         .is_rmii        = 1,
 170 };
 171
 172
 173 /*
 174  * NAND flash
 175  */
 176 static struct mtd_partition __initdata ek_nand_partition[] = {
 177         {
 178                 .name   = "Partition 1",
 179                 .offset = 0,
 180                 .size   = 64 * 1024 * 1024,
 181         },
 182         {
 183                 .name   = "Partition 2",
 184                 .offset = 64 * 1024 * 1024,
 185                 .size   = MTDPART_SIZ_FULL,
 186         },
 187 };
 188
 189 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 190 {
 191         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 192         return ek_nand_partition;
 193 }
 194
 195 static struct at91_nand_data __initdata ek_nand_data = {
 196         .ale            = 21,
 197         .cle            = 22,
 198 //      .det_pin        = ... not connected
 199         .rdy_pin        = AT91_PIN_PA22,
 200         .enable_pin     = AT91_PIN_PD15,
 201         .partition_info = nand_partitions,
 202 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 203         .bus_width_16   = 1,
 204 #else
 205         .bus_width_16   = 0,
 206 #endif
 207 };
 208
 209
 210 /*
 211  * LCD Controller
 212  */
 213 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 214 static struct fb_videomode at91_tft_vga_modes[] = {
 215         {
 216                 .name           = "TX09D50VM1CCA @ 60",
 217                 .refresh        = 60,
 218                 .xres           = 240,          .yres           = 320,
 219                 .pixclock       = KHZ2PICOS(4965),
 220
 221                 .left_margin    = 1,            .right_margin   = 33,
 222                 .upper_margin   = 1,            .lower_margin   = 0,
 223                 .hsync_len      = 5,            .vsync_len      = 1,
 224
 225                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 226                 .vmode          = FB_VMODE_NONINTERLACED,
 227         },
 228 };
 229
 230 static struct fb_monspecs at91fb_default_monspecs = {
 231         .manufacturer   = "HIT",
 232         .monitor        = "TX09D70VM1CCA",
 233
 234         .modedb         = at91_tft_vga_modes,
 235         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 236         .hfmin          = 15000,
 237         .hfmax          = 64000,
 238         .vfmin          = 50,
 239         .vfmax          = 150,
 240 };
 241
 242 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 243                                         | ATMEL_LCDC_DISTYPE_TFT    \
 244                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 245
 246 static void at91_lcdc_power_control(int on)
 247 {
 248         if (on)
 249                 at91_set_gpio_value(AT91_PIN_PD12, 0);  /* power up */
 250         else
 251                 at91_set_gpio_value(AT91_PIN_PD12, 1);  /* power down */
 252 }
 253
 254 /* Driver datas */
 255 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 256         .lcdcon_is_backlight            = true,
 257         .default_bpp                    = 16,
 258         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 259         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 260         .default_monspecs               = &at91fb_default_monspecs,
 261         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 262         .guard_time                     = 1,
 263 };
 264
 265 #else
 266 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 267 #endif
 268
 269
 270 /*
 271  * GPIO Buttons
 272  */
 273 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 274 static struct gpio_keys_button ek_buttons[] = {
 275         {       /* BP1, "leftclic" */
 276                 .code           = BTN_LEFT,
 277                 .gpio           = AT91_PIN_PC5,
 278                 .active_low     = 1,
 279                 .desc           = "left_click",
 280                 .wakeup         = 1,
 281         },
 282         {       /* BP2, "rightclic" */
 283                 .code           = BTN_RIGHT,
 284                 .gpio           = AT91_PIN_PC4,
 285                 .active_low     = 1,
 286                 .desc           = "right_click",
 287                 .wakeup         = 1,
 288         },
 289 };
 290
 291 static struct gpio_keys_platform_data ek_button_data = {
 292         .buttons        = ek_buttons,
 293         .nbuttons       = ARRAY_SIZE(ek_buttons),
 294 };
 295
 296 static struct platform_device ek_button_device = {
 297         .name           = "gpio-keys",
 298         .id             = -1,
 299         .num_resources  = 0,
 300         .dev            = {
 301                 .platform_data  = &ek_button_data,
 302         }
 303 };
 304
 305 static void __init ek_add_device_buttons(void)
 306 {
 307         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 308         at91_set_deglitch(AT91_PIN_PC5, 1);
 309         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 310         at91_set_deglitch(AT91_PIN_PC4, 1);
 311
 312         platform_device_register(&ek_button_device);
 313 }
 314 #else
 315 static void __init ek_add_device_buttons(void) {}
 316 #endif
 317
 318
 319 /*
 320  * AC97
 321  */
 322 static struct atmel_ac97_data ek_ac97_data = {
 323         .reset_pin      = AT91_PIN_PA13,
 324 };
 325
 326
 327 /*
 328  * LEDs ... these could all be PWM-driven, for variable brightness
 329  */
 330 static struct gpio_led ek_leds[] = {
 331         {       /* "left" led, green, userled1, pwm1 */
 332                 .name                   = "ds1",
 333                 .gpio                   = AT91_PIN_PB8,
 334                 .active_low             = 1,
 335                 .default_trigger        = "mmc0",
 336         },
 337         {       /* "right" led, green, userled2, pwm2 */
 338                 .name                   = "ds2",
 339                 .gpio                   = AT91_PIN_PC29,
 340                 .active_low             = 1,
 341                 .default_trigger        = "nand-disk",
 342         },
 343         {       /* "power" led, yellow, pwm0 */
 344                 .name                   = "ds3",
 345                 .gpio                   = AT91_PIN_PB7,
 346                 .default_trigger        = "heartbeat",
 347         },
 348 };
 349
 350
 351 static void __init ek_board_init(void)
 352 {
 353         /* Serial */
 354         at91_add_device_serial();
 355         /* USB Host */
 356         at91_add_device_usbh(&ek_usbh_data);
 357         /* USB Device */
 358         at91_add_device_udc(&ek_udc_data);
 359         /* SPI */
 360         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 361         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 362         /* Touchscreen */
 363         ek_add_device_ts();
 364         /* MMC */
 365         at91_add_device_mmc(1, &ek_mmc_data);
 366         /* Ethernet */
 367         at91_add_device_eth(&ek_macb_data);
 368         /* NAND */
 369         at91_add_device_nand(&ek_nand_data);
 370         /* I2C */
 371         at91_add_device_i2c(NULL, 0);
 372         /* LCD Controller */
 373         at91_add_device_lcdc(&ek_lcdc_data);
 374         /* Push Buttons */
 375         ek_add_device_buttons();
 376         /* AC97 */
 377         at91_add_device_ac97(&ek_ac97_data);
 378         /* LEDs */
 379         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 380 }
 381
 382 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 383         /* Maintainer: Atmel */
 384         .phys_io        = AT91_BASE_SYS,
 385         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 386         .boot_params    = AT91_SDRAM_BASE + 0x100,
 387         .timer          = &at91sam926x_timer,
 388         .map_io         = ek_map_io,
 389         .init_irq       = ek_init_irq,
 390         .init_machine   = ek_board_init,
 391 MACHINE_END