Pileus Git - ~andy/linux/blob - 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         .overcurrent_pin= {-EINVAL, -EINVAL},
  78 };
  79
  80 /*
  81  * USB Device port
  82  */
  83 static struct at91_udc_data __initdata ek_udc_data = {
  84         .vbus_pin       = AT91_PIN_PA25,
  85         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  86 };
  87
  88
  89 /*
  90  * ADS7846 Touchscreen
  91  */
  92 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  93 static int ads7843_pendown_state(void)
  94 {
  95         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  96 }
  97
  98 static struct ads7846_platform_data ads_info = {
  99         .model                  = 7843,
 100         .x_min                  = 150,
 101         .x_max                  = 3830,
 102         .y_min                  = 190,
 103         .y_max                  = 3830,
 104         .vref_delay_usecs       = 100,
 105         .x_plate_ohms           = 450,
 106         .y_plate_ohms           = 250,
 107         .pressure_max           = 15000,
 108         .debounce_max           = 1,
 109         .debounce_rep           = 0,
 110         .debounce_tol           = (~0),
 111         .get_pendown_state      = ads7843_pendown_state,
 112 };
 113
 114 static void __init ek_add_device_ts(void)
 115 {
 116         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 117         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 118 }
 119 #else
 120 static void __init ek_add_device_ts(void) {}
 121 #endif
 122
 123 /*
 124  * SPI devices.
 125  */
 126 static struct spi_board_info ek_spi_devices[] = {
 127 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 128         {       /* DataFlash card */
 129                 .modalias       = "mtd_dataflash",
 130                 .chip_select    = 0,
 131                 .max_speed_hz   = 15 * 1000 * 1000,
 132                 .bus_num        = 0,
 133         },
 134 #endif
 135 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 136         {
 137                 .modalias       = "ads7846",
 138                 .chip_select    = 3,
 139                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 140                 .bus_num        = 0,
 141                 .platform_data  = &ads_info,
 142                 .irq            = AT91SAM9263_ID_IRQ1,
 143         },
 144 #endif
 145 };
 146
 147
 148 /*
 149  * MCI (SD/MMC)
 150  */
 151 static struct at91_mmc_data __initdata ek_mmc_data = {
 152         .wire4          = 1,
 153         .det_pin        = AT91_PIN_PE18,
 154         .wp_pin         = AT91_PIN_PE19,
 155         .vcc_pin        = -EINVAL,
 156 };
 157
 158
 159 /*
 160  * MACB Ethernet device
 161  */
 162 static struct macb_platform_data __initdata ek_macb_data = {
 163         .phy_irq_pin    = AT91_PIN_PE31,
 164         .is_rmii        = 1,
 165 };
 166
 167
 168 /*
 169  * NAND flash
 170  */
 171 static struct mtd_partition __initdata ek_nand_partition[] = {
 172         {
 173                 .name   = "Partition 1",
 174                 .offset = 0,
 175                 .size   = SZ_64M,
 176         },
 177         {
 178                 .name   = "Partition 2",
 179                 .offset = MTDPART_OFS_NXTBLK,
 180                 .size   = MTDPART_SIZ_FULL,
 181         },
 182 };
 183
 184 static struct atmel_nand_data __initdata ek_nand_data = {
 185         .ale            = 21,
 186         .cle            = 22,
 187         .det_pin        = -EINVAL,
 188         .rdy_pin        = AT91_PIN_PA22,
 189         .enable_pin     = AT91_PIN_PD15,
 190         .ecc_mode       = NAND_ECC_SOFT,
 191         .on_flash_bbt   = 1,
 192         .parts          = ek_nand_partition,
 193         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 194 };
 195
 196 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 197         .ncs_read_setup         = 0,
 198         .nrd_setup              = 1,
 199         .ncs_write_setup        = 0,
 200         .nwe_setup              = 1,
 201
 202         .ncs_read_pulse         = 3,
 203         .nrd_pulse              = 3,
 204         .ncs_write_pulse        = 3,
 205         .nwe_pulse              = 3,
 206
 207         .read_cycle             = 5,
 208         .write_cycle            = 5,
 209
 210         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 211         .tdf_cycles             = 2,
 212 };
 213
 214 static void __init ek_add_device_nand(void)
 215 {
 216         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 217         /* setup bus-width (8 or 16) */
 218         if (ek_nand_data.bus_width_16)
 219                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 220         else
 221                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 222
 223         /* configure chip-select 3 (NAND) */
 224         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 225
 226         at91_add_device_nand(&ek_nand_data);
 227 }
 228
 229
 230 /*
 231  * I2C devices
 232  */
 233 static struct at24_platform_data at24c512 = {
 234         .byte_len       = SZ_512K / 8,
 235         .page_size      = 128,
 236         .flags          = AT24_FLAG_ADDR16,
 237 };
 238
 239
 240 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 241         {
 242                 I2C_BOARD_INFO("24c512", 0x50),
 243                 .platform_data = &at24c512,
 244         },
 245         /* more devices can be added using expansion connectors */
 246 };
 247
 248 /*
 249  * LCD Controller
 250  */
 251 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 252 static struct fb_videomode at91_tft_vga_modes[] = {
 253         {
 254                 .name           = "TX09D50VM1CCA @ 60",
 255                 .refresh        = 60,
 256                 .xres           = 240,          .yres           = 320,
 257                 .pixclock       = KHZ2PICOS(4965),
 258
 259                 .left_margin    = 1,            .right_margin   = 33,
 260                 .upper_margin   = 1,            .lower_margin   = 0,
 261                 .hsync_len      = 5,            .vsync_len      = 1,
 262
 263                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 264                 .vmode          = FB_VMODE_NONINTERLACED,
 265         },
 266 };
 267
 268 static struct fb_monspecs at91fb_default_monspecs = {
 269         .manufacturer   = "HIT",
 270         .monitor        = "TX09D70VM1CCA",
 271
 272         .modedb         = at91_tft_vga_modes,
 273         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 274         .hfmin          = 15000,
 275         .hfmax          = 64000,
 276         .vfmin          = 50,
 277         .vfmax          = 150,
 278 };
 279
 280 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 281                                         | ATMEL_LCDC_DISTYPE_TFT \
 282                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 283
 284 static void at91_lcdc_power_control(int on)
 285 {
 286         at91_set_gpio_value(AT91_PIN_PA30, on);
 287 }
 288
 289 /* Driver datas */
 290 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 291         .lcdcon_is_backlight            = true,
 292         .default_bpp                    = 16,
 293         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 294         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 295         .default_monspecs               = &at91fb_default_monspecs,
 296         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 297         .guard_time                     = 1,
 298 };
 299
 300 #else
 301 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 302 #endif
 303
 304
 305 /*
 306  * GPIO Buttons
 307  */
 308 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 309 static struct gpio_keys_button ek_buttons[] = {
 310         {       /* BP1, "leftclic" */
 311                 .code           = BTN_LEFT,
 312                 .gpio           = AT91_PIN_PC5,
 313                 .active_low     = 1,
 314                 .desc           = "left_click",
 315                 .wakeup         = 1,
 316         },
 317         {       /* BP2, "rightclic" */
 318                 .code           = BTN_RIGHT,
 319                 .gpio           = AT91_PIN_PC4,
 320                 .active_low     = 1,
 321                 .desc           = "right_click",
 322                 .wakeup         = 1,
 323         }
 324 };
 325
 326 static struct gpio_keys_platform_data ek_button_data = {
 327         .buttons        = ek_buttons,
 328         .nbuttons       = ARRAY_SIZE(ek_buttons),
 329 };
 330
 331 static struct platform_device ek_button_device = {
 332         .name           = "gpio-keys",
 333         .id             = -1,
 334         .num_resources  = 0,
 335         .dev            = {
 336                 .platform_data  = &ek_button_data,
 337         }
 338 };
 339
 340 static void __init ek_add_device_buttons(void)
 341 {
 342         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 343         at91_set_deglitch(AT91_PIN_PC5, 1);
 344         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 345         at91_set_deglitch(AT91_PIN_PC4, 1);
 346
 347         platform_device_register(&ek_button_device);
 348 }
 349 #else
 350 static void __init ek_add_device_buttons(void) {}
 351 #endif
 352
 353
 354 /*
 355  * AC97
 356  * reset_pin is not connected: NRST
 357  */
 358 static struct ac97c_platform_data ek_ac97_data = {
 359         .reset_pin      = -EINVAL,
 360 };
 361
 362
 363 /*
 364  * LEDs ... these could all be PWM-driven, for variable brightness
 365  */
 366 static struct gpio_led ek_leds[] = {
 367         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 368                 .name                   = "ds2",
 369                 .gpio                   = AT91_PIN_PC29,
 370                 .active_low             = 1,
 371                 .default_trigger        = "nand-disk",
 372         },
 373         {       /* "power" led, yellow (could be driven by pwm0) */
 374                 .name                   = "ds3",
 375                 .gpio                   = AT91_PIN_PB7,
 376                 .default_trigger        = "heartbeat",
 377         }
 378 };
 379
 380 /*
 381  * PWM Leds
 382  */
 383 static struct gpio_led ek_pwm_led[] = {
 384         /* For now only DS1 is PWM-driven (by pwm1) */
 385         {
 386                 .name                   = "ds1",
 387                 .gpio                   = 1,    /* is PWM channel number */
 388                 .active_low             = 1,
 389                 .default_trigger        = "none",
 390         }
 391 };
 392
 393 /*
 394  * CAN
 395  */
 396 static void sam9263ek_transceiver_switch(int on)
 397 {
 398         if (on) {
 399                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 400                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 401         } else {
 402                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 403                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 404         }
 405 }
 406
 407 static struct at91_can_data ek_can_data = {
 408         .transceiver_switch = sam9263ek_transceiver_switch,
 409 };
 410
 411 static void __init ek_board_init(void)
 412 {
 413         /* Serial */
 414         at91_add_device_serial();
 415         /* USB Host */
 416         at91_add_device_usbh(&ek_usbh_data);
 417         /* USB Device */
 418         at91_add_device_udc(&ek_udc_data);
 419         /* SPI */
 420         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 421         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 422         /* Touchscreen */
 423         ek_add_device_ts();
 424         /* MMC */
 425         at91_add_device_mmc(1, &ek_mmc_data);
 426         /* Ethernet */
 427         at91_add_device_eth(&ek_macb_data);
 428         /* NAND */
 429         ek_add_device_nand();
 430         /* I2C */
 431         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 432         /* LCD Controller */
 433         at91_add_device_lcdc(&ek_lcdc_data);
 434         /* Push Buttons */
 435         ek_add_device_buttons();
 436         /* AC97 */
 437         at91_add_device_ac97(&ek_ac97_data);
 438         /* LEDs */
 439         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 440         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 441         /* CAN */
 442         at91_add_device_can(&ek_can_data);
 443 }
 444
 445 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 446         /* Maintainer: Atmel */
 447         .timer          = &at91sam926x_timer,
 448         .map_io         = at91_map_io,
 449         .init_early     = ek_init_early,
 450         .init_irq       = at91_init_irq_default,
 451         .init_machine   = ek_board_init,
 452 MACHINE_END