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/platform_data/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/at91sam9_smc.h>
  48 #include <mach/system_rev.h>
  49
  50 #include "at91_aic.h"
  51 #include "at91_shdwc.h"
  52 #include "board.h"
  53 #include "sam9_smc.h"
  54 #include "generic.h"
  55 #include "gpio.h"
  56
  57
  58 static void __init ek_init_early(void)
  59 {
  60         /* Initialize processor: 16.367 MHz crystal */
  61         at91_initialize(16367660);
  62 }
  63
  64 /*
  65  * USB Host port
  66  */
  67 static struct at91_usbh_data __initdata ek_usbh_data = {
  68         .ports          = 2,
  69         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  70         .vbus_pin_active_low = {1, 1},
  71         .overcurrent_pin= {-EINVAL, -EINVAL},
  72 };
  73
  74 /*
  75  * USB Device port
  76  */
  77 static struct at91_udc_data __initdata ek_udc_data = {
  78         .vbus_pin       = AT91_PIN_PA25,
  79         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  80 };
  81
  82
  83 /*
  84  * ADS7846 Touchscreen
  85  */
  86 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  87 static int ads7843_pendown_state(void)
  88 {
  89         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  90 }
  91
  92 static struct ads7846_platform_data ads_info = {
  93         .model                  = 7843,
  94         .x_min                  = 150,
  95         .x_max                  = 3830,
  96         .y_min                  = 190,
  97         .y_max                  = 3830,
  98         .vref_delay_usecs       = 100,
  99         .x_plate_ohms           = 450,
 100         .y_plate_ohms           = 250,
 101         .pressure_max           = 15000,
 102         .debounce_max           = 1,
 103         .debounce_rep           = 0,
 104         .debounce_tol           = (~0),
 105         .get_pendown_state      = ads7843_pendown_state,
 106 };
 107
 108 static void __init ek_add_device_ts(void)
 109 {
 110         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 111         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 112 }
 113 #else
 114 static void __init ek_add_device_ts(void) {}
 115 #endif
 116
 117 /*
 118  * SPI devices.
 119  */
 120 static struct spi_board_info ek_spi_devices[] = {
 121 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 122         {       /* DataFlash card */
 123                 .modalias       = "mtd_dataflash",
 124                 .chip_select    = 0,
 125                 .max_speed_hz   = 15 * 1000 * 1000,
 126                 .bus_num        = 0,
 127         },
 128 #endif
 129 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 130         {
 131                 .modalias       = "ads7846",
 132                 .chip_select    = 3,
 133                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 134                 .bus_num        = 0,
 135                 .platform_data  = &ads_info,
 136                 .irq            = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1,
 137         },
 138 #endif
 139 };
 140
 141
 142 /*
 143  * MCI (SD/MMC)
 144  */
 145 static struct mci_platform_data __initdata mci1_data = {
 146         .slot[0] = {
 147                 .bus_width      = 4,
 148                 .detect_pin     = AT91_PIN_PE18,
 149                 .wp_pin         = AT91_PIN_PE19,
 150         },
 151 };
 152
 153
 154 /*
 155  * MACB Ethernet device
 156  */
 157 static struct macb_platform_data __initdata ek_macb_data = {
 158         .phy_irq_pin    = AT91_PIN_PE31,
 159         .is_rmii        = 1,
 160 };
 161
 162
 163 /*
 164  * NAND flash
 165  */
 166 static struct mtd_partition __initdata ek_nand_partition[] = {
 167         {
 168                 .name   = "Partition 1",
 169                 .offset = 0,
 170                 .size   = SZ_64M,
 171         },
 172         {
 173                 .name   = "Partition 2",
 174                 .offset = MTDPART_OFS_NXTBLK,
 175                 .size   = MTDPART_SIZ_FULL,
 176         },
 177 };
 178
 179 static struct atmel_nand_data __initdata ek_nand_data = {
 180         .ale            = 21,
 181         .cle            = 22,
 182         .det_pin        = -EINVAL,
 183         .rdy_pin        = AT91_PIN_PA22,
 184         .enable_pin     = AT91_PIN_PD15,
 185         .ecc_mode       = NAND_ECC_SOFT,
 186         .on_flash_bbt   = 1,
 187         .parts          = ek_nand_partition,
 188         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 189 };
 190
 191 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 192         .ncs_read_setup         = 0,
 193         .nrd_setup              = 1,
 194         .ncs_write_setup        = 0,
 195         .nwe_setup              = 1,
 196
 197         .ncs_read_pulse         = 3,
 198         .nrd_pulse              = 3,
 199         .ncs_write_pulse        = 3,
 200         .nwe_pulse              = 3,
 201
 202         .read_cycle             = 5,
 203         .write_cycle            = 5,
 204
 205         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 206         .tdf_cycles             = 2,
 207 };
 208
 209 static void __init ek_add_device_nand(void)
 210 {
 211         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 212         /* setup bus-width (8 or 16) */
 213         if (ek_nand_data.bus_width_16)
 214                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 215         else
 216                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 217
 218         /* configure chip-select 3 (NAND) */
 219         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 220
 221         at91_add_device_nand(&ek_nand_data);
 222 }
 223
 224
 225 /*
 226  * I2C devices
 227  */
 228 static struct at24_platform_data at24c512 = {
 229         .byte_len       = SZ_512K / 8,
 230         .page_size      = 128,
 231         .flags          = AT24_FLAG_ADDR16,
 232 };
 233
 234
 235 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 236         {
 237                 I2C_BOARD_INFO("24c512", 0x50),
 238                 .platform_data = &at24c512,
 239         },
 240         /* more devices can be added using expansion connectors */
 241 };
 242
 243 /*
 244  * LCD Controller
 245  */
 246 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 247 static struct fb_videomode at91_tft_vga_modes[] = {
 248         {
 249                 .name           = "TX09D50VM1CCA @ 60",
 250                 .refresh        = 60,
 251                 .xres           = 240,          .yres           = 320,
 252                 .pixclock       = KHZ2PICOS(4965),
 253
 254                 .left_margin    = 1,            .right_margin   = 33,
 255                 .upper_margin   = 1,            .lower_margin   = 0,
 256                 .hsync_len      = 5,            .vsync_len      = 1,
 257
 258                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 259                 .vmode          = FB_VMODE_NONINTERLACED,
 260         },
 261 };
 262
 263 static struct fb_monspecs at91fb_default_monspecs = {
 264         .manufacturer   = "HIT",
 265         .monitor        = "TX09D70VM1CCA",
 266
 267         .modedb         = at91_tft_vga_modes,
 268         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 269         .hfmin          = 15000,
 270         .hfmax          = 64000,
 271         .vfmin          = 50,
 272         .vfmax          = 150,
 273 };
 274
 275 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 276                                         | ATMEL_LCDC_DISTYPE_TFT \
 277                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 278
 279 static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 280 {
 281         at91_set_gpio_value(AT91_PIN_PA30, on);
 282 }
 283
 284 /* Driver datas */
 285 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 286         .lcdcon_is_backlight            = true,
 287         .default_bpp                    = 16,
 288         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 289         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 290         .default_monspecs               = &at91fb_default_monspecs,
 291         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 292         .guard_time                     = 1,
 293 };
 294
 295 #else
 296 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 297 #endif
 298
 299
 300 /*
 301  * GPIO Buttons
 302  */
 303 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 304 static struct gpio_keys_button ek_buttons[] = {
 305         {       /* BP1, "leftclic" */
 306                 .code           = BTN_LEFT,
 307                 .gpio           = AT91_PIN_PC5,
 308                 .active_low     = 1,
 309                 .desc           = "left_click",
 310                 .wakeup         = 1,
 311         },
 312         {       /* BP2, "rightclic" */
 313                 .code           = BTN_RIGHT,
 314                 .gpio           = AT91_PIN_PC4,
 315                 .active_low     = 1,
 316                 .desc           = "right_click",
 317                 .wakeup         = 1,
 318         }
 319 };
 320
 321 static struct gpio_keys_platform_data ek_button_data = {
 322         .buttons        = ek_buttons,
 323         .nbuttons       = ARRAY_SIZE(ek_buttons),
 324 };
 325
 326 static struct platform_device ek_button_device = {
 327         .name           = "gpio-keys",
 328         .id             = -1,
 329         .num_resources  = 0,
 330         .dev            = {
 331                 .platform_data  = &ek_button_data,
 332         }
 333 };
 334
 335 static void __init ek_add_device_buttons(void)
 336 {
 337         at91_set_GPIO_periph(AT91_PIN_PC5, 1);  /* left button */
 338         at91_set_deglitch(AT91_PIN_PC5, 1);
 339         at91_set_GPIO_periph(AT91_PIN_PC4, 1);  /* right button */
 340         at91_set_deglitch(AT91_PIN_PC4, 1);
 341
 342         platform_device_register(&ek_button_device);
 343 }
 344 #else
 345 static void __init ek_add_device_buttons(void) {}
 346 #endif
 347
 348
 349 /*
 350  * AC97
 351  * reset_pin is not connected: NRST
 352  */
 353 static struct ac97c_platform_data ek_ac97_data = {
 354         .reset_pin      = -EINVAL,
 355 };
 356
 357
 358 /*
 359  * LEDs ... these could all be PWM-driven, for variable brightness
 360  */
 361 static struct gpio_led ek_leds[] = {
 362         {       /* "right" led, green, userled2 (could be driven by pwm2) */
 363                 .name                   = "ds2",
 364                 .gpio                   = AT91_PIN_PC29,
 365                 .active_low             = 1,
 366                 .default_trigger        = "nand-disk",
 367         },
 368         {       /* "power" led, yellow (could be driven by pwm0) */
 369                 .name                   = "ds3",
 370                 .gpio                   = AT91_PIN_PB7,
 371                 .default_trigger        = "heartbeat",
 372         }
 373 };
 374
 375 /*
 376  * PWM Leds
 377  */
 378 static struct gpio_led ek_pwm_led[] = {
 379         /* For now only DS1 is PWM-driven (by pwm1) */
 380         {
 381                 .name                   = "ds1",
 382                 .gpio                   = 1,    /* is PWM channel number */
 383                 .active_low             = 1,
 384                 .default_trigger        = "none",
 385         }
 386 };
 387
 388 /*
 389  * CAN
 390  */
 391 static void sam9263ek_transceiver_switch(int on)
 392 {
 393         if (on) {
 394                 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
 395                 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
 396         } else {
 397                 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
 398                 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
 399         }
 400 }
 401
 402 static struct at91_can_data ek_can_data = {
 403         .transceiver_switch = sam9263ek_transceiver_switch,
 404 };
 405
 406 static void __init ek_board_init(void)
 407 {
 408         /* Serial */
 409         /* DBGU on ttyS0. (Rx & Tx only) */
 410         at91_register_uart(0, 0, 0);
 411
 412         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
 413         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
 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_mci(1, &mci1_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         .init_time      = at91sam926x_pit_init,
 448         .map_io         = at91_map_io,
 449         .handle_irq     = at91_aic_handle_irq,
 450         .init_early     = ek_init_early,
 451         .init_irq       = at91_init_irq_default,
 452         .init_machine   = ek_board_init,
 453 MACHINE_END