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
  34 #include <video/atmel_lcdc.h>
  35
  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 <mach/hardware.h>
  45 #include <mach/board.h>
  46 #include <mach/gpio.h>
  47 #include <mach/at91sam9_smc.h>
  48
  49 #include "generic.h"
  50
  51
  52 static void __init ek_map_io(void)
  53 {
  54         /* Initialize processor: 16.367 MHz crystal */
  55         at91sam9263_initialize(16367660);
  56
  57         /* DGBU on ttyS0. (Rx & Tx only) */
  58         at91_register_uart(0, 0, 0);
  59
  60         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  61         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  62
  63         /* set serial console to ttyS0 (ie, DBGU) */
  64         at91_set_serial_console(0);
  65 }
  66
  67 static void __init ek_init_irq(void)
  68 {
  69         at91sam9263_init_interrupts(NULL);
  70 }
  71
  72
  73 /*
  74  * USB Host port
  75  */
  76 static struct at91_usbh_data __initdata ek_usbh_data = {
  77         .ports          = 2,
  78         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  79 };
  80
  81 /*
  82  * USB Device port
  83  */
  84 static struct at91_udc_data __initdata ek_udc_data = {
  85         .vbus_pin       = AT91_PIN_PA25,
  86         .pullup_pin     = 0,            /* pull-up driven by UDC */
  87 };
  88
  89
  90 /*
  91  * ADS7846 Touchscreen
  92  */
  93 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  94 static int ads7843_pendown_state(void)
  95 {
  96         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  97 }
  98
  99 static struct ads7846_platform_data ads_info = {
 100         .model                  = 7843,
 101         .x_min                  = 150,
 102         .x_max                  = 3830,
 103         .y_min                  = 190,
 104         .y_max                  = 3830,
 105         .vref_delay_usecs       = 100,
 106         .x_plate_ohms           = 450,
 107         .y_plate_ohms           = 250,
 108         .pressure_max           = 15000,
 109         .debounce_max           = 1,
 110         .debounce_rep           = 0,
 111         .debounce_tol           = (~0),
 112         .get_pendown_state      = ads7843_pendown_state,
 113 };
 114
 115 static void __init ek_add_device_ts(void)
 116 {
 117         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 118         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* Touchscreen BUSY signal */
 119 }
 120 #else
 121 static void __init ek_add_device_ts(void) {}
 122 #endif
 123
 124 /*
 125  * SPI devices.
 126  */
 127 static struct spi_board_info ek_spi_devices[] = {
 128 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 129         {       /* DataFlash card */
 130                 .modalias       = "mtd_dataflash",
 131                 .chip_select    = 0,
 132                 .max_speed_hz   = 15 * 1000 * 1000,
 133                 .bus_num        = 0,
 134         },
 135 #endif
 136 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 137         {
 138                 .modalias       = "ads7846",
 139                 .chip_select    = 3,
 140                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
 141                 .bus_num        = 0,
 142                 .platform_data  = &ads_info,
 143                 .irq            = AT91SAM9263_ID_IRQ1,
 144         },
 145 #endif
 146 };
 147
 148
 149 /*
 150  * MCI (SD/MMC)
 151  */
 152 static struct at91_mmc_data __initdata ek_mmc_data = {
 153         .wire4          = 1,
 154         .det_pin        = AT91_PIN_PE18,
 155         .wp_pin         = AT91_PIN_PE19,
 156 //      .vcc_pin        = ... not connected
 157 };
 158
 159
 160 /*
 161  * MACB Ethernet device
 162  */
 163 static struct at91_eth_data __initdata ek_macb_data = {
 164         .phy_irq_pin    = AT91_PIN_PE31,
 165         .is_rmii        = 1,
 166 };
 167
 168
 169 /*
 170  * NAND flash
 171  */
 172 static struct mtd_partition __initdata ek_nand_partition[] = {
 173         {
 174                 .name   = "Partition 1",
 175                 .offset = 0,
 176                 .size   = SZ_64M,
 177         },
 178         {
 179                 .name   = "Partition 2",
 180                 .offset = MTDPART_OFS_NXTBLK,
 181                 .size   = MTDPART_SIZ_FULL,
 182         },
 183 };
 184
 185 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 186 {
 187         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 188         return ek_nand_partition;
 189 }
 190
 191 static struct atmel_nand_data __initdata ek_nand_data = {
 192         .ale            = 21,
 193         .cle            = 22,
 194 //      .det_pin        = ... not connected
 195         .rdy_pin        = AT91_PIN_PA22,
 196         .enable_pin     = AT91_PIN_PD15,
 197         .partition_info = nand_partitions,
 198 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 199         .bus_width_16   = 1,
 200 #else
 201         .bus_width_16   = 0,
 202 #endif
 203 };
 204
 205
 206 /*
 207  * I2C devices
 208  */
 209 static struct at24_platform_data at24c512 = {
 210         .byte_len       = SZ_512K / 8,
 211         .page_size      = 128,
 212         .flags          = AT24_FLAG_ADDR16,
 213 };
 214
 215
 216 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 217         {
 218                 I2C_BOARD_INFO("24c512", 0x50),
 219                 .platform_data = &at24c512,
 220         },
 221         /* more devices can be added using expansion connectors */
 222 };
 223
 224 /*
 225  * LCD Controller
 226  */
 227 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 228 static struct fb_videomode at91_tft_vga_modes[] = {
 229         {
 230                 .name           = "TX09D50VM1CCA @ 60",
 231                 .refresh        = 60,
 232                 .xres           = 240,          .yres           = 320,
 233                 .pixclock       = KHZ2PICOS(4965),
 234
 235                 .left_margin    = 1,            .right_margin   = 33,
 236                 .upper_margin   = 1,            .lower_margin   = 0,
 237                 .hsync_len      = 5,            .vsync_len      = 1,
 238
 239                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 240                 .vmode          = FB_VMODE_NONINTERLACED,
 241         },
 242 };
 243
 244 static struct fb_monspecs at91fb_default_monspecs = {
 245         .manufacturer   = "HIT",
 246         .monitor        = "TX09D70VM1CCA",
 247
 248         .modedb         = at91_tft_vga_modes,
 249         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 250         .hfmin          = 15000,
 251         .hfmax          = 64000,
 252         .vfmin          = 50,
 253         .vfmax          = 150,
 254 };
 255
 256 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 257                                         | ATMEL_LCDC_DISTYPE_TFT \
 258                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 259
 260 static void at91_lcdc_power_control(int on)
 261 {
 262         at91_set_gpio_value(AT91_PIN_PA30, on);
 263 }
 264
 265 /* Driver datas */
 266 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 267         .lcdcon_is_backlight            = true,
 268         .default_bpp                    = 16,
 269         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 270         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 271         .default_monspecs               = &at91fb_default_monspecs,
 272         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 273         .guard_time                     = 1,
 274 };
 275
 276 #else
 277 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 278 #endif
 279
 280
 281 /*
 282  * GPIO Buttons
 283  */
 284 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 285 static struct gpio_keys_button ek_buttons[] = {
 286         {       /* BP1, "leftclic" */
 287                 .code           = BTN_LEFT,
 288                 .gpio           = AT91_PIN_PC5,
 289                 .active_low     = 1,
 290                 .desc           = "left_click",
 291                 .wakeup         = 1,
 292         },
 293         {       /* BP2, "rightclic" */
 294                 .code           = BTN_RIGHT,
 295                 .gpio           = AT91_PIN_PC4,
 296                 .active_low     = 1,
 297                 .desc           = "right_click",
 298                 .wakeup         = 1,
 299         },
 300 };
 301
 302 static struct gpio_keys_platform_data ek_button_data = {
 303         .buttons        = ek_buttons,
 304         .nbuttons       = ARRAY_SIZE(ek_buttons),
 305 };
 306
 307 static struct platform_device ek_button_device = {
 308         .name           = "gpio-keys",
 309         .id             = -1,
 310         .num_resources  = 0,
 311         .dev            = {
 312                 .platform_data  = &ek_button_data,
 313         }
 314 };
 315
 316 static void __init ek_add_device_buttons(void)
 317 {
 318         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 319         at91_set_deglitch(AT91_PIN_PC5, 1);
 320         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 321         at91_set_deglitch(AT91_PIN_PC4, 1);
 322
 323         platform_device_register(&ek_button_device);
 324 }
 325 #else
 326 static void __init ek_add_device_buttons(void) {}
 327 #endif
 328
 329
 330 /*
 331  * AC97
 332  */
 333 static struct atmel_ac97_data ek_ac97_data = {
 334         .reset_pin      = AT91_PIN_PA13,
 335 };
 336
 337
 338 /*
 339  * LEDs ... these could all be PWM-driven, for variable brightness
 340  */
 341 static struct gpio_led ek_leds[] = {
 342         {       /* "left" led, green, userled1, pwm1 */
 343                 .name                   = "ds1",
 344                 .gpio                   = AT91_PIN_PB8,
 345                 .active_low             = 1,
 346                 .default_trigger        = "mmc0",
 347         },
 348         {       /* "right" led, green, userled2, pwm2 */
 349                 .name                   = "ds2",
 350                 .gpio                   = AT91_PIN_PC29,
 351                 .active_low             = 1,
 352                 .default_trigger        = "nand-disk",
 353         },
 354         {       /* "power" led, yellow, pwm0 */
 355                 .name                   = "ds3",
 356                 .gpio                   = AT91_PIN_PB7,
 357                 .default_trigger        = "heartbeat",
 358         }
 359 };
 360
 361
 362 static void __init ek_board_init(void)
 363 {
 364         /* Serial */
 365         at91_add_device_serial();
 366         /* USB Host */
 367         at91_add_device_usbh(&ek_usbh_data);
 368         /* USB Device */
 369         at91_add_device_udc(&ek_udc_data);
 370         /* SPI */
 371         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 372         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 373         /* Touchscreen */
 374         ek_add_device_ts();
 375         /* MMC */
 376         at91_add_device_mmc(1, &ek_mmc_data);
 377         /* Ethernet */
 378         at91_add_device_eth(&ek_macb_data);
 379         /* NAND */
 380         at91_add_device_nand(&ek_nand_data);
 381         /* I2C */
 382         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 383         /* LCD Controller */
 384         at91_add_device_lcdc(&ek_lcdc_data);
 385         /* Push Buttons */
 386         ek_add_device_buttons();
 387         /* AC97 */
 388         at91_add_device_ac97(&ek_ac97_data);
 389         /* LEDs */
 390         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 391 }
 392
 393 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 394         /* Maintainer: Atmel */
 395         .phys_io        = AT91_BASE_SYS,
 396         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 397         .boot_params    = AT91_SDRAM_BASE + 0x100,
 398         .timer          = &at91sam926x_timer,
 399         .map_io         = ek_map_io,
 400         .init_irq       = ek_init_irq,
 401         .init_machine   = ek_board_init,
 402 MACHINE_END