release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-at91/board-sam9m10g45ek.c

   1 /*
   2  *  Board-specific setup code for the AT91SAM9M10G45 Evaluation Kit family
   3  *
   4  *  Covers: * AT91SAM9G45-EKES  board
   5  *          * AT91SAM9M10G45-EK board
   6  *
   7  *  Copyright (C) 2009 Atmel Corporation.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  */
  15
  16 #include <linux/types.h>
  17 #include <linux/init.h>
  18 #include <linux/mm.h>
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/spi/spi.h>
  22 #include <linux/fb.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/leds.h>
  26 #include <linux/clk.h>
  27
  28 #include <video/atmel_lcdc.h>
  29
  30 #include <asm/setup.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/irq.h>
  33
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36 #include <asm/mach/irq.h>
  37
  38 #include <mach/hardware.h>
  39 #include <mach/board.h>
  40 #include <mach/gpio.h>
  41 #include <mach/at91sam9_smc.h>
  42 #include <mach/at91_shdwc.h>
  43
  44 #include "sam9_smc.h"
  45 #include "generic.h"
  46
  47
  48 static void __init ek_map_io(void)
  49 {
  50         /* Initialize processor: 12.000 MHz crystal */
  51         at91sam9g45_initialize(12000000);
  52
  53         /* DGBU on ttyS0. (Rx & Tx only) */
  54         at91_register_uart(0, 0, 0);
  55
  56         /* USART0 not connected on the -EK board */
  57         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  58         at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  59
  60         /* set serial console to ttyS0 (ie, DBGU) */
  61         at91_set_serial_console(0);
  62 }
  63
  64 static void __init ek_init_irq(void)
  65 {
  66         at91sam9g45_init_interrupts(NULL);
  67 }
  68
  69
  70 /*
  71  * USB HS Host port (common to OHCI & EHCI)
  72  */
  73 static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  74         .ports          = 2,
  75         .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
  76 };
  77
  78
  79 /*
  80  * USB HS Device port
  81  */
  82 static struct usba_platform_data __initdata ek_usba_udc_data = {
  83         .vbus_pin       = AT91_PIN_PB19,
  84 };
  85
  86
  87 /*
  88  * SPI devices.
  89  */
  90 static struct spi_board_info ek_spi_devices[] = {
  91         {       /* DataFlash chip */
  92                 .modalias       = "mtd_dataflash",
  93                 .chip_select    = 0,
  94                 .max_speed_hz   = 15 * 1000 * 1000,
  95                 .bus_num        = 0,
  96         },
  97 };
  98
  99
 100 /*
 101  * MACB Ethernet device
 102  */
 103 static struct at91_eth_data __initdata ek_macb_data = {
 104         .phy_irq_pin    = AT91_PIN_PD5,
 105         .is_rmii        = 1,
 106 };
 107
 108
 109 /*
 110  * NAND flash
 111  */
 112 static struct mtd_partition __initdata ek_nand_partition[] = {
 113         {
 114                 .name   = "Partition 1",
 115                 .offset = 0,
 116                 .size   = SZ_64M,
 117         },
 118         {
 119                 .name   = "Partition 2",
 120                 .offset = MTDPART_OFS_NXTBLK,
 121                 .size   = MTDPART_SIZ_FULL,
 122         },
 123 };
 124
 125 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 126 {
 127         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 128         return ek_nand_partition;
 129 }
 130
 131 /* det_pin is not connected */
 132 static struct atmel_nand_data __initdata ek_nand_data = {
 133         .ale            = 21,
 134         .cle            = 22,
 135         .rdy_pin        = AT91_PIN_PC8,
 136         .enable_pin     = AT91_PIN_PC14,
 137         .partition_info = nand_partitions,
 138 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 139         .bus_width_16   = 1,
 140 #else
 141         .bus_width_16   = 0,
 142 #endif
 143 };
 144
 145 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 146         .ncs_read_setup         = 0,
 147         .nrd_setup              = 2,
 148         .ncs_write_setup        = 0,
 149         .nwe_setup              = 2,
 150
 151         .ncs_read_pulse         = 4,
 152         .nrd_pulse              = 4,
 153         .ncs_write_pulse        = 4,
 154         .nwe_pulse              = 4,
 155
 156         .read_cycle             = 7,
 157         .write_cycle            = 7,
 158
 159         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 160         .tdf_cycles             = 3,
 161 };
 162
 163 static void __init ek_add_device_nand(void)
 164 {
 165         /* setup bus-width (8 or 16) */
 166         if (ek_nand_data.bus_width_16)
 167                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 168         else
 169                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 170
 171         /* configure chip-select 3 (NAND) */
 172         sam9_smc_configure(3, &ek_nand_smc_config);
 173
 174         at91_add_device_nand(&ek_nand_data);
 175 }
 176
 177
 178 /*
 179  * LCD Controller
 180  */
 181 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 182 static struct fb_videomode at91_tft_vga_modes[] = {
 183         {
 184                 .name           = "LG",
 185                 .refresh        = 60,
 186                 .xres           = 480,          .yres           = 272,
 187                 .pixclock       = KHZ2PICOS(9000),
 188
 189                 .left_margin    = 1,            .right_margin   = 1,
 190                 .upper_margin   = 40,           .lower_margin   = 1,
 191                 .hsync_len      = 45,           .vsync_len      = 1,
 192
 193                 .sync           = 0,
 194                 .vmode          = FB_VMODE_NONINTERLACED,
 195         },
 196 };
 197
 198 static struct fb_monspecs at91fb_default_monspecs = {
 199         .manufacturer   = "LG",
 200         .monitor        = "LB043WQ1",
 201
 202         .modedb         = at91_tft_vga_modes,
 203         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 204         .hfmin          = 15000,
 205         .hfmax          = 17640,
 206         .vfmin          = 57,
 207         .vfmax          = 67,
 208 };
 209
 210 #define AT91SAM9G45_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 211                                         | ATMEL_LCDC_DISTYPE_TFT \
 212                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 213
 214 /* Driver datas */
 215 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 216         .lcdcon_is_backlight            = true,
 217         .default_bpp                    = 32,
 218         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 219         .default_lcdcon2                = AT91SAM9G45_DEFAULT_LCDCON2,
 220         .default_monspecs               = &at91fb_default_monspecs,
 221         .guard_time                     = 9,
 222         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 223 };
 224
 225 #else
 226 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 227 #endif
 228
 229
 230 /*
 231  * Touchscreen
 232  */
 233 static struct at91_tsadcc_data ek_tsadcc_data = {
 234         .adc_clock              = 300000,
 235         .pendet_debounce        = 0x0d,
 236         .ts_sample_hold_time    = 0x0a,
 237 };
 238
 239
 240 /*
 241  * GPIO Buttons
 242  */
 243 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 244 static struct gpio_keys_button ek_buttons[] = {
 245         {       /* BP1, "leftclic" */
 246                 .code           = BTN_LEFT,
 247                 .gpio           = AT91_PIN_PB6,
 248                 .active_low     = 1,
 249                 .desc           = "left_click",
 250                 .wakeup         = 1,
 251         },
 252         {       /* BP2, "rightclic" */
 253                 .code           = BTN_RIGHT,
 254                 .gpio           = AT91_PIN_PB7,
 255                 .active_low     = 1,
 256                 .desc           = "right_click",
 257                 .wakeup         = 1,
 258         },
 259                 /* BP3, "joystick" */
 260         {
 261                 .code           = KEY_LEFT,
 262                 .gpio           = AT91_PIN_PB14,
 263                 .active_low     = 1,
 264                 .desc           = "Joystick Left",
 265         },
 266         {
 267                 .code           = KEY_RIGHT,
 268                 .gpio           = AT91_PIN_PB15,
 269                 .active_low     = 1,
 270                 .desc           = "Joystick Right",
 271         },
 272         {
 273                 .code           = KEY_UP,
 274                 .gpio           = AT91_PIN_PB16,
 275                 .active_low     = 1,
 276                 .desc           = "Joystick Up",
 277         },
 278         {
 279                 .code           = KEY_DOWN,
 280                 .gpio           = AT91_PIN_PB17,
 281                 .active_low     = 1,
 282                 .desc           = "Joystick Down",
 283         },
 284         {
 285                 .code           = KEY_ENTER,
 286                 .gpio           = AT91_PIN_PB18,
 287                 .active_low     = 1,
 288                 .desc           = "Joystick Press",
 289         },
 290 };
 291
 292 static struct gpio_keys_platform_data ek_button_data = {
 293         .buttons        = ek_buttons,
 294         .nbuttons       = ARRAY_SIZE(ek_buttons),
 295 };
 296
 297 static struct platform_device ek_button_device = {
 298         .name           = "gpio-keys",
 299         .id             = -1,
 300         .num_resources  = 0,
 301         .dev            = {
 302                 .platform_data  = &ek_button_data,
 303         }
 304 };
 305
 306 static void __init ek_add_device_buttons(void)
 307 {
 308         int i;
 309
 310         for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
 311                 at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
 312                 at91_set_deglitch(ek_buttons[i].gpio, 1);
 313         }
 314
 315         platform_device_register(&ek_button_device);
 316 }
 317 #else
 318 static void __init ek_add_device_buttons(void) {}
 319 #endif
 320
 321
 322 /*
 323  * AC97
 324  * reset_pin is not connected: NRST
 325  */
 326 static struct ac97c_platform_data ek_ac97_data = {
 327 };
 328
 329
 330 /*
 331  * LEDs ... these could all be PWM-driven, for variable brightness
 332  */
 333 static struct gpio_led ek_leds[] = {
 334         {       /* "top" led, red, powerled */
 335                 .name                   = "d8",
 336                 .gpio                   = AT91_PIN_PD30,
 337                 .default_trigger        = "heartbeat",
 338         },
 339         {       /* "left" led, green, userled2, pwm3 */
 340                 .name                   = "d6",
 341                 .gpio                   = AT91_PIN_PD0,
 342                 .active_low             = 1,
 343                 .default_trigger        = "nand-disk",
 344         },
 345 #if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
 346         {       /* "right" led, green, userled1, pwm1 */
 347                 .name                   = "d7",
 348                 .gpio                   = AT91_PIN_PD31,
 349                 .active_low             = 1,
 350                 .default_trigger        = "mmc0",
 351         },
 352 #endif
 353 };
 354
 355
 356 /*
 357  * PWM Leds
 358  */
 359 static struct gpio_led ek_pwm_led[] = {
 360 #if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
 361         {       /* "right" led, green, userled1, pwm1 */
 362                 .name                   = "d7",
 363                 .gpio                   = 1,    /* is PWM channel number */
 364                 .active_low             = 1,
 365                 .default_trigger        = "none",
 366         },
 367 #endif
 368 };
 369
 370
 371
 372 static void __init ek_board_init(void)
 373 {
 374         /* Serial */
 375         at91_add_device_serial();
 376         /* USB HS Host */
 377         at91_add_device_usbh_ohci(&ek_usbh_hs_data);
 378         at91_add_device_usbh_ehci(&ek_usbh_hs_data);
 379         /* USB HS Device */
 380         at91_add_device_usba(&ek_usba_udc_data);
 381         /* SPI */
 382         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 383         /* Ethernet */
 384         at91_add_device_eth(&ek_macb_data);
 385         /* NAND */
 386         ek_add_device_nand();
 387         /* I2C */
 388         at91_add_device_i2c(0, NULL, 0);
 389         /* LCD Controller */
 390         at91_add_device_lcdc(&ek_lcdc_data);
 391         /* Touch Screen */
 392         at91_add_device_tsadcc(&ek_tsadcc_data);
 393         /* Push Buttons */
 394         ek_add_device_buttons();
 395         /* AC97 */
 396         at91_add_device_ac97(&ek_ac97_data);
 397         /* LEDs */
 398         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 399         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 400 }
 401
 402 MACHINE_START(AT91SAM9G45EKES, "Atmel AT91SAM9G45-EKES")
 403         /* Maintainer: Atmel */
 404         .phys_io        = AT91_BASE_SYS,
 405         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 406         .boot_params    = AT91_SDRAM_BASE + 0x100,
 407         .timer          = &at91sam926x_timer,
 408         .map_io         = ek_map_io,
 409         .init_irq       = ek_init_irq,
 410         .init_machine   = ek_board_init,
 411 MACHINE_END