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 <mach/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 <mach/board.h>
  45 #include <mach/gpio.h>
  46 #include <mach/at91sam9_smc.h>
  47
  48 #include "generic.h"
  49
  50
  51 static void __init ek_map_io(void)
  52 {
  53         /* Initialize processor: 16.367 MHz crystal */
  54         at91sam9263_initialize(16367660);
  55
  56         /* Setup the serial ports and console */
  57         at91_init_uarts();
  58 }
  59
  60 static void __init ek_init_irq(void)
  61 {
  62         at91sam9263_init_interrupts(NULL);
  63 }
  64
  65
  66 /*
  67  * USB Host port
  68  */
  69 static struct at91_usbh_data __initdata ek_usbh_data = {
  70         .ports          = 2,
  71         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  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     = 0,            /* 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            = AT91SAM9263_ID_IRQ1,
 137         },
 138 #endif
 139 };
 140
 141
 142 /*
 143  * MCI (SD/MMC)
 144  */
 145 static struct at91_mmc_data __initdata ek_mmc_data = {
 146         .wire4          = 1,
 147         .det_pin        = AT91_PIN_PE18,
 148         .wp_pin         = AT91_PIN_PE19,
 149 //      .vcc_pin        = ... not connected
 150 };
 151
 152
 153 /*
 154  * MACB Ethernet device
 155  */
 156 static struct at91_eth_data __initdata ek_macb_data = {
 157         .phy_irq_pin    = AT91_PIN_PE31,
 158         .is_rmii        = 1,
 159 };
 160
 161
 162 /*
 163  * NAND flash
 164  */
 165 static struct mtd_partition __initdata ek_nand_partition[] = {
 166         {
 167                 .name   = "Partition 1",
 168                 .offset = 0,
 169                 .size   = 64 * 1024 * 1024,
 170         },
 171         {
 172                 .name   = "Partition 2",
 173                 .offset = 64 * 1024 * 1024,
 174                 .size   = MTDPART_SIZ_FULL,
 175         },
 176 };
 177
 178 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 179 {
 180         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 181         return ek_nand_partition;
 182 }
 183
 184 static struct atmel_nand_data __initdata ek_nand_data = {
 185         .ale            = 21,
 186         .cle            = 22,
 187 //      .det_pin        = ... not connected
 188         .rdy_pin        = AT91_PIN_PA22,
 189         .enable_pin     = AT91_PIN_PD15,
 190         .partition_info = nand_partitions,
 191 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
 192         .bus_width_16   = 1,
 193 #else
 194         .bus_width_16   = 0,
 195 #endif
 196 };
 197
 198
 199 /*
 200  * LCD Controller
 201  */
 202 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 203 static struct fb_videomode at91_tft_vga_modes[] = {
 204         {
 205                 .name           = "TX09D50VM1CCA @ 60",
 206                 .refresh        = 60,
 207                 .xres           = 240,          .yres           = 320,
 208                 .pixclock       = KHZ2PICOS(4965),
 209
 210                 .left_margin    = 1,            .right_margin   = 33,
 211                 .upper_margin   = 1,            .lower_margin   = 0,
 212                 .hsync_len      = 5,            .vsync_len      = 1,
 213
 214                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 215                 .vmode          = FB_VMODE_NONINTERLACED,
 216         },
 217 };
 218
 219 static struct fb_monspecs at91fb_default_monspecs = {
 220         .manufacturer   = "HIT",
 221         .monitor        = "TX09D70VM1CCA",
 222
 223         .modedb         = at91_tft_vga_modes,
 224         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 225         .hfmin          = 15000,
 226         .hfmax          = 64000,
 227         .vfmin          = 50,
 228         .vfmax          = 150,
 229 };
 230
 231 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 232                                         | ATMEL_LCDC_DISTYPE_TFT    \
 233                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 234
 235 static void at91_lcdc_power_control(int on)
 236 {
 237         at91_set_gpio_value(AT91_PIN_PA30, on);
 238 }
 239
 240 /* Driver datas */
 241 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 242         .lcdcon_is_backlight            = true,
 243         .default_bpp                    = 16,
 244         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 245         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 246         .default_monspecs               = &at91fb_default_monspecs,
 247         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 248         .guard_time                     = 1,
 249 };
 250
 251 #else
 252 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 253 #endif
 254
 255
 256 /*
 257  * GPIO Buttons
 258  */
 259 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 260 static struct gpio_keys_button ek_buttons[] = {
 261         {       /* BP1, "leftclic" */
 262                 .code           = BTN_LEFT,
 263                 .gpio           = AT91_PIN_PC5,
 264                 .active_low     = 1,
 265                 .desc           = "left_click",
 266                 .wakeup         = 1,
 267         },
 268         {       /* BP2, "rightclic" */
 269                 .code           = BTN_RIGHT,
 270                 .gpio           = AT91_PIN_PC4,
 271                 .active_low     = 1,
 272                 .desc           = "right_click",
 273                 .wakeup         = 1,
 274         },
 275 };
 276
 277 static struct gpio_keys_platform_data ek_button_data = {
 278         .buttons        = ek_buttons,
 279         .nbuttons       = ARRAY_SIZE(ek_buttons),
 280 };
 281
 282 static struct platform_device ek_button_device = {
 283         .name           = "gpio-keys",
 284         .id             = -1,
 285         .num_resources  = 0,
 286         .dev            = {
 287                 .platform_data  = &ek_button_data,
 288         }
 289 };
 290
 291 static void __init ek_add_device_buttons(void)
 292 {
 293         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 294         at91_set_deglitch(AT91_PIN_PC5, 1);
 295         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 296         at91_set_deglitch(AT91_PIN_PC4, 1);
 297
 298         platform_device_register(&ek_button_device);
 299 }
 300 #else
 301 static void __init ek_add_device_buttons(void) {}
 302 #endif
 303
 304
 305 /*
 306  * AC97
 307  */
 308 static struct atmel_ac97_data ek_ac97_data = {
 309         .reset_pin      = AT91_PIN_PA13,
 310 };
 311
 312
 313 /*
 314  * LEDs ... these could all be PWM-driven, for variable brightness
 315  */
 316 static struct gpio_led ek_leds[] = {
 317         {       /* "left" led, green, userled1, pwm1 */
 318                 .name                   = "ds1",
 319                 .gpio                   = AT91_PIN_PB8,
 320                 .active_low             = 1,
 321                 .default_trigger        = "mmc0",
 322         },
 323         {       /* "right" led, green, userled2, pwm2 */
 324                 .name                   = "ds2",
 325                 .gpio                   = AT91_PIN_PC29,
 326                 .active_low             = 1,
 327                 .default_trigger        = "nand-disk",
 328         },
 329         {       /* "power" led, yellow, pwm0 */
 330                 .name                   = "ds3",
 331                 .gpio                   = AT91_PIN_PB7,
 332                 .default_trigger        = "heartbeat",
 333         }
 334 };
 335
 336
 337 static void __init ek_board_init(void)
 338 {
 339         /* Serial */
 340         at91_add_device_serial();
 341         /* USB Host */
 342         at91_add_device_usbh(&ek_usbh_data);
 343         /* USB Device */
 344         at91_add_device_udc(&ek_udc_data);
 345         /* SPI */
 346         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 347         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 348         /* Touchscreen */
 349         ek_add_device_ts();
 350         /* MMC */
 351         at91_add_device_mmc(1, &ek_mmc_data);
 352         /* Ethernet */
 353         at91_add_device_eth(&ek_macb_data);
 354         /* NAND */
 355         at91_add_device_nand(&ek_nand_data);
 356         /* I2C */
 357         at91_add_device_i2c(NULL, 0);
 358         /* LCD Controller */
 359         at91_add_device_lcdc(&ek_lcdc_data);
 360         /* Push Buttons */
 361         ek_add_device_buttons();
 362         /* AC97 */
 363         at91_add_device_ac97(&ek_ac97_data);
 364         /* LEDs */
 365         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 366 }
 367
 368 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 369         /* Maintainer: Atmel */
 370         .phys_io        = AT91_BASE_SYS,
 371         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 372         .boot_params    = AT91_SDRAM_BASE + 0x100,
 373         .timer          = &at91sam926x_timer,
 374         .map_io         = ek_map_io,
 375         .init_irq       = ek_init_irq,
 376         .init_machine   = ek_board_init,
 377 MACHINE_END