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 <asm/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 <asm/arch/board.h>
  45 #include <asm/arch/gpio.h>
  46 #include <asm/arch/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         /* DGBU on ttyS0. (Rx & Tx only) */
  57         at91_register_uart(0, 0, 0);
  58
  59         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  60         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  61
  62         /* set serial console to ttyS0 (ie, DBGU) */
  63         at91_set_serial_console(0);
  64 }
  65
  66 static void __init ek_init_irq(void)
  67 {
  68         at91sam9263_init_interrupts(NULL);
  69 }
  70
  71
  72 /*
  73  * USB Host port
  74  */
  75 static struct at91_usbh_data __initdata ek_usbh_data = {
  76         .ports          = 2,
  77         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  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     = 0,            /* 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        = ... not connected
 156 };
 157
 158
 159 /*
 160  * MACB Ethernet device
 161  */
 162 static struct at91_eth_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   = 64 * 1024 * 1024,
 176         },
 177         {
 178                 .name   = "Partition 2",
 179                 .offset = 64 * 1024 * 1024,
 180                 .size   = MTDPART_SIZ_FULL,
 181         },
 182 };
 183
 184 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 185 {
 186         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 187         return ek_nand_partition;
 188 }
 189
 190 static struct atmel_nand_data __initdata ek_nand_data = {
 191         .ale            = 21,
 192         .cle            = 22,
 193 //      .det_pin        = ... not connected
 194         .rdy_pin        = AT91_PIN_PA22,
 195         .enable_pin     = AT91_PIN_PD15,
 196         .partition_info = nand_partitions,
 197 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 198         .bus_width_16   = 1,
 199 #else
 200         .bus_width_16   = 0,
 201 #endif
 202 };
 203
 204
 205 /*
 206  * LCD Controller
 207  */
 208 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 209 static struct fb_videomode at91_tft_vga_modes[] = {
 210         {
 211                 .name           = "TX09D50VM1CCA @ 60",
 212                 .refresh        = 60,
 213                 .xres           = 240,          .yres           = 320,
 214                 .pixclock       = KHZ2PICOS(4965),
 215
 216                 .left_margin    = 1,            .right_margin   = 33,
 217                 .upper_margin   = 1,            .lower_margin   = 0,
 218                 .hsync_len      = 5,            .vsync_len      = 1,
 219
 220                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 221                 .vmode          = FB_VMODE_NONINTERLACED,
 222         },
 223 };
 224
 225 static struct fb_monspecs at91fb_default_monspecs = {
 226         .manufacturer   = "HIT",
 227         .monitor        = "TX09D70VM1CCA",
 228
 229         .modedb         = at91_tft_vga_modes,
 230         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 231         .hfmin          = 15000,
 232         .hfmax          = 64000,
 233         .vfmin          = 50,
 234         .vfmax          = 150,
 235 };
 236
 237 #define AT91SAM9263_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 238                                         | ATMEL_LCDC_DISTYPE_TFT    \
 239                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 240
 241 static void at91_lcdc_power_control(int on)
 242 {
 243         at91_set_gpio_value(AT91_PIN_PA30, on);
 244 }
 245
 246 /* Driver datas */
 247 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 248         .lcdcon_is_backlight            = true,
 249         .default_bpp                    = 16,
 250         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 251         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 252         .default_monspecs               = &at91fb_default_monspecs,
 253         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 254         .guard_time                     = 1,
 255 };
 256
 257 #else
 258 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 259 #endif
 260
 261
 262 /*
 263  * GPIO Buttons
 264  */
 265 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 266 static struct gpio_keys_button ek_buttons[] = {
 267         {       /* BP1, "leftclic" */
 268                 .code           = BTN_LEFT,
 269                 .gpio           = AT91_PIN_PC5,
 270                 .active_low     = 1,
 271                 .desc           = "left_click",
 272                 .wakeup         = 1,
 273         },
 274         {       /* BP2, "rightclic" */
 275                 .code           = BTN_RIGHT,
 276                 .gpio           = AT91_PIN_PC4,
 277                 .active_low     = 1,
 278                 .desc           = "right_click",
 279                 .wakeup         = 1,
 280         },
 281 };
 282
 283 static struct gpio_keys_platform_data ek_button_data = {
 284         .buttons        = ek_buttons,
 285         .nbuttons       = ARRAY_SIZE(ek_buttons),
 286 };
 287
 288 static struct platform_device ek_button_device = {
 289         .name           = "gpio-keys",
 290         .id             = -1,
 291         .num_resources  = 0,
 292         .dev            = {
 293                 .platform_data  = &ek_button_data,
 294         }
 295 };
 296
 297 static void __init ek_add_device_buttons(void)
 298 {
 299         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 300         at91_set_deglitch(AT91_PIN_PC5, 1);
 301         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 302         at91_set_deglitch(AT91_PIN_PC4, 1);
 303
 304         platform_device_register(&ek_button_device);
 305 }
 306 #else
 307 static void __init ek_add_device_buttons(void) {}
 308 #endif
 309
 310
 311 /*
 312  * AC97
 313  */
 314 static struct atmel_ac97_data ek_ac97_data = {
 315         .reset_pin      = AT91_PIN_PA13,
 316 };
 317
 318
 319 /*
 320  * LEDs ... these could all be PWM-driven, for variable brightness
 321  */
 322 static struct gpio_led ek_leds[] = {
 323         {       /* "left" led, green, userled1, pwm1 */
 324                 .name                   = "ds1",
 325                 .gpio                   = AT91_PIN_PB8,
 326                 .active_low             = 1,
 327                 .default_trigger        = "mmc0",
 328         },
 329         {       /* "right" led, green, userled2, pwm2 */
 330                 .name                   = "ds2",
 331                 .gpio                   = AT91_PIN_PC29,
 332                 .active_low             = 1,
 333                 .default_trigger        = "nand-disk",
 334         },
 335         {       /* "power" led, yellow, pwm0 */
 336                 .name                   = "ds3",
 337                 .gpio                   = AT91_PIN_PB7,
 338                 .default_trigger        = "heartbeat",
 339         }
 340 };
 341
 342
 343 static void __init ek_board_init(void)
 344 {
 345         /* Serial */
 346         at91_add_device_serial();
 347         /* USB Host */
 348         at91_add_device_usbh(&ek_usbh_data);
 349         /* USB Device */
 350         at91_add_device_udc(&ek_udc_data);
 351         /* SPI */
 352         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 353         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 354         /* Touchscreen */
 355         ek_add_device_ts();
 356         /* MMC */
 357         at91_add_device_mmc(1, &ek_mmc_data);
 358         /* Ethernet */
 359         at91_add_device_eth(&ek_macb_data);
 360         /* NAND */
 361         at91_add_device_nand(&ek_nand_data);
 362         /* I2C */
 363         at91_add_device_i2c(NULL, 0);
 364         /* LCD Controller */
 365         at91_add_device_lcdc(&ek_lcdc_data);
 366         /* Push Buttons */
 367         ek_add_device_buttons();
 368         /* AC97 */
 369         at91_add_device_ac97(&ek_ac97_data);
 370         /* LEDs */
 371         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 372 }
 373
 374 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
 375         /* Maintainer: Atmel */
 376         .phys_io        = AT91_BASE_SYS,
 377         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 378         .boot_params    = AT91_SDRAM_BASE + 0x100,
 379         .timer          = &at91sam926x_timer,
 380         .map_io         = ek_map_io,
 381         .init_irq       = ek_init_irq,
 382         .init_machine   = ek_board_init,
 383 MACHINE_END