kernel/2.6.29.6-aldebaran-rt/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 #include <mach/at91_shdwc.h>
  50
  51 #include "sam9_smc.h"
  52 #include "generic.h"
  53
  54
  55 static void __init ek_map_io(void)
  56 {
  57         /* Initialize processor: 16.367 MHz crystal */
  58         at91sam9263_initialize(16367660);
  59
  60         /* DGBU on ttyS0. (Rx & Tx only) */
  61         at91_register_uart(0, 0, 0);
  62
  63         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  64         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  65
  66         /* set serial console to ttyS0 (ie, DBGU) */
  67         at91_set_serial_console(0);
  68 }
  69
  70 static void __init ek_init_irq(void)
  71 {
  72         at91sam9263_init_interrupts(NULL);
  73 }
  74
  75
  76 /*
  77  * USB Host port
  78  */
  79 static struct at91_usbh_data __initdata ek_usbh_data = {
  80         .ports          = 2,
  81         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  82 };
  83
  84 /*
  85  * USB Device port
  86  */
  87 static struct at91_udc_data __initdata ek_udc_data = {
  88         .vbus_pin       = AT91_PIN_PA25,
  89         .pullup_pin     = 0,            /* pull-up driven by UDC */
  90 };
  91
  92
  93 /*
  94  * ADS7846 Touchscreen
  95  */
  96 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  97 static int ads7843_pendown_state(void)
  98 {
  99         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
 100 }
 101
 102 static struct ads7846_platform_data ads_info = {
 103         .model                  = 7843,
 104         .x_min                  = 150,
 105         .x_max                  = 3830,
 106         .y_min                  = 190,
 107         .y_max                  = 3830,
 108         .vref_delay_usecs       = 100,
 109         .x_plate_ohms           = 450,
 110         .y_plate_ohms           = 250,
 111         .pressure_max           = 15000,
 112         .debounce_max           = 1,
 113         .debounce_rep           = 0,
 114         .debounce_tol           = (~0),
 115         .get_pendown_state      = ads7843_pendown_state,
 116 };
 117
 118 static void __init ek_add_device_ts(void)
 119 {
 120         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 121         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 122 }
 123 #else
 124 static void __init ek_add_device_ts(void) {}
 125 #endif
 126
 127 /*
 128  * SPI devices.
 129  */
 130 static struct spi_board_info ek_spi_devices[] = {
 131 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 132         {       /* DataFlash card */
 133                 .modalias       = "mtd_dataflash",
 134                 .chip_select    = 0,
 135                 .max_speed_hz   = 15 * 1000 * 1000,
 136                 .bus_num        = 0,
 137         },
 138 #endif
 139 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 140         {
 141                 .modalias       = "ads7846",
 142                 .chip_select    = 3,
 143                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 144                 .bus_num        = 0,
 145                 .platform_data  = &ads_info,
 146                 .irq            = AT91SAM9263_ID_IRQ1,
 147         },
 148 #endif
 149 };
 150
 151
 152 /*
 153  * MCI (SD/MMC)
 154  */
 155 static struct at91_mmc_data __initdata ek_mmc_data = {
 156         .wire4          = 1,
 157         .det_pin        = AT91_PIN_PE18,
 158         .wp_pin         = AT91_PIN_PE19,
 159 //      .vcc_pin        = ... not connected
 160 };
 161
 162
 163 /*
 164  * MACB Ethernet device
 165  */
 166 static struct at91_eth_data __initdata ek_macb_data = {
 167         .phy_irq_pin    = AT91_PIN_PE31,
 168         .is_rmii        = 1,
 169 };
 170
 171
 172 /*
 173  * NAND flash
 174  */
 175 static struct mtd_partition __initdata ek_nand_partition[] = {
 176         {
 177                 .name   = "Partition 1",
 178                 .offset = 0,
 179                 .size   = SZ_64M,
 180         },
 181         {
 182                 .name   = "Partition 2",
 183                 .offset = MTDPART_OFS_NXTBLK,
 184                 .size   = MTDPART_SIZ_FULL,
 185         },
 186 };
 187
 188 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 189 {
 190         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 191         return ek_nand_partition;
 192 }
 193
 194 static struct atmel_nand_data __initdata ek_nand_data = {
 195         .ale            = 21,
 196         .cle            = 22,
 197 //      .det_pin        = ... not connected
 198         .rdy_pin        = AT91_PIN_PA22,
 199         .enable_pin     = AT91_PIN_PD15,
 200         .partition_info = nand_partitions,
 201 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 202         .bus_width_16   = 1,
 203 #else
 204         .bus_width_16   = 0,
 205 #endif
 206 };
 207
 208 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 209         .ncs_read_setup         = 0,
 210         .nrd_setup              = 1,
 211         .ncs_write_setup        = 0,
 212         .nwe_setup              = 1,
 213
 214         .ncs_read_pulse         = 3,
 215         .nrd_pulse              = 3,
 216         .ncs_write_pulse        = 3,
 217         .nwe_pulse              = 3,
 218
 219         .read_cycle             = 5,
 220         .write_cycle            = 5,
 221
 222         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 223         .tdf_cycles             = 2,
 224 };
 225
 226 static void __init ek_add_device_nand(void)
 227 {
 228         /* setup bus-width (8 or 16) */
 229         if (ek_nand_data.bus_width_16)
 230                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 231         else
 232                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 233
 234         /* configure chip-select 3 (NAND) */
 235         sam9_smc_configure(3, &ek_nand_smc_config);
 236
 237         at91_add_device_nand(&ek_nand_data);
 238 }
 239
 240
 241 /*
 242  * I2C devices
 243  */
 244 static struct at24_platform_data at24c512 = {
 245         .byte_len       = SZ_512K / 8,
 246         .page_size      = 128,
 247         .flags          = AT24_FLAG_ADDR16,
 248 };
 249
 250
 251 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 252         {
 253                 I2C_BOARD_INFO("24c512", 0x50),
 254                 .platform_data = &at24c512,
 255         },
 256         /* more devices can be added using expansion connectors */
 257 };
 258
 259 /*
 260  * LCD Controller
 261  */
 262 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 263 static struct fb_videomode at91_tft_vga_modes[] = {
 264         {
 265                 .name           = "TX09D50VM1CCA @ 60",
 266                 .refresh        = 60,
 267                 .xres           = 240,          .yres           = 320,
 268                 .pixclock       = KHZ2PICOS(4965),
 269
 270                 .left_margin    = 1,            .right_margin   = 33,
 271                 .upper_margin   = 1,            .lower_margin   = 0,
 272                 .hsync_len      = 5,            .vsync_len      = 1,
 273
 274                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 275                 .vmode          = FB_VMODE_NONINTERLACED,
 276         },
 277 };
 278
 279 static struct fb_monspecs at91fb_default_monspecs = {
 280         .manufacturer   = "HIT",
 281         .monitor        = "TX09D70VM1CCA",
 282
 283         .modedb         = at91_tft_vga_modes,
 284         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 285         .hfmin          = 15000,
 286         .hfmax          = 64000,
 287         .vfmin          = 50,
 288         .vfmax          = 150,
 289 };
 290
 291 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 292                                         | ATMEL_LCDC_DISTYPE_TFT \
 293                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 294
 295 static void at91_lcdc_power_control(int on)
 296 {
 297         at91_set_gpio_value(AT91_PIN_PA30, on);
 298 }
 299
 300 /* Driver datas */
 301 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 302         .lcdcon_is_backlight            = true,
 303         .default_bpp                    = 16,
 304         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 305         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 306         .default_monspecs               = &at91fb_default_monspecs,
 307         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 308         .guard_time                     = 1,
 309 };
 310
 311 #else
 312 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 313 #endif
 314
 315
 316 /*
 317  * GPIO Buttons
 318  */
 319 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 320 static struct gpio_keys_button ek_buttons[] = {
 321         {       /* BP1, "leftclic" */
 322                 .code           = BTN_LEFT,
 323                 .gpio           = AT91_PIN_PC5,
 324                 .active_low     = 1,
 325                 .desc           = "left_click",
 326                 .wakeup         = 1,
 327         },
 328         {       /* BP2, "rightclic" */
 329                 .code           = BTN_RIGHT,
 330                 .gpio           = AT91_PIN_PC4,
 331                 .active_low     = 1,
 332                 .desc           = "right_click",
 333                 .wakeup         = 1,
 334         }
 335 };
 336
 337 static struct gpio_keys_platform_data ek_button_data = {
 338         .buttons        = ek_buttons,
 339         .nbuttons       = ARRAY_SIZE(ek_buttons),
 340 };
 341
 342 static struct platform_device ek_button_device = {
 343         .name           = "gpio-keys",
 344         .id             = -1,
 345         .num_resources  = 0,
 346         .dev            = {
 347                 .platform_data  = &ek_button_data,
 348         }
 349 };
 350
 351 static void __init ek_add_device_buttons(void)
 352 {
 353         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 354         at91_set_deglitch(AT91_PIN_PC5, 1);
 355         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 356         at91_set_deglitch(AT91_PIN_PC4, 1);
 357
 358         platform_device_register(&ek_button_device);
 359 }
 360 #else
 361 static void __init ek_add_device_buttons(void) {}
 362 #endif
 363
 364
 365 /*
 366  * AC97
 367  */
 368 static struct atmel_ac97_data ek_ac97_data = {
 369         .reset_pin      = AT91_PIN_PA13,
 370 };
 371
 372
 373 /*
 374  * LEDs ... these could all be PWM-driven, for variable brightness
 375  */
 376 static struct gpio_led ek_leds[] = {
 377         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 378                 .name                   = "ds2",
 379                 .gpio                   = AT91_PIN_PC29,
 380                 .active_low             = 1,
 381                 .default_trigger        = "nand-disk",
 382         },
 383         {       /* "power" led, yellow (could be driven by pwm0) */
 384                 .name                   = "ds3",
 385                 .gpio                   = AT91_PIN_PB7,
 386                 .default_trigger        = "heartbeat",
 387         }
 388 };
 389
 390 /*
 391  * PWM Leds
 392  */
 393 static struct gpio_led ek_pwm_led[] = {
 394         /* For now only DS1 is PWM-driven (by pwm1) */
 395         {
 396                 .name                   = "ds1",
 397                 .gpio                   = 1,    /* is PWM channel number */
 398                 .active_low             = 1,
 399                 .default_trigger        = "none",
 400         }
 401 };
 402
 403
 404 static void __init ek_board_init(void)
 405 {
 406         /* Serial */
 407         at91_add_device_serial();
 408         /* USB Host */
 409         at91_add_device_usbh(&ek_usbh_data);
 410         /* USB Device */
 411         at91_add_device_udc(&ek_udc_data);
 412         /* SPI */
 413         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 414         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 415         /* Touchscreen */
 416         ek_add_device_ts();
 417         /* MMC */
 418         at91_add_device_mmc(1, &ek_mmc_data);
 419         /* Ethernet */
 420         at91_add_device_eth(&ek_macb_data);
 421         /* NAND */
 422         ek_add_device_nand();
 423         /* I2C */
 424         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 425         /* LCD Controller */
 426         at91_add_device_lcdc(&ek_lcdc_data);
 427         /* Push Buttons */
 428         ek_add_device_buttons();
 429         /* AC97 */
 430         at91_add_device_ac97(&ek_ac97_data);
 431         /* LEDs */
 432         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 433         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 434 }
 435
 436 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 437         /* Maintainer: Atmel */
 438         .phys_io        = AT91_BASE_SYS,
 439         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 440         .boot_params    = AT91_SDRAM_BASE + 0x100,
 441         .timer          = &at91sam926x_timer,
 442         .map_io         = ek_map_io,
 443         .init_irq       = ek_init_irq,
 444         .init_machine   = ek_board_init,
 445 MACHINE_END