Logo Search packages:      
Sourcecode: linux version File versions  Download package

board-sam9rlek.c

/*
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2007 Atmel Corporation
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive for
 * more details.
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/fb.h>
#include <linux/clk.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>

#include <video/atmel_lcdc.h>

#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>

#include "sam9_smc.h"
#include "generic.h"


static void __init ek_map_io(void)
{
      /* Initialize processor: 12.000 MHz crystal */
      at91sam9rl_initialize(12000000);

      /* DBGU on ttyS0. (Rx & Tx only) */
      at91_register_uart(0, 0, 0);

      /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
      at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);

      /* set serial console to ttyS0 (ie, DBGU) */
      at91_set_serial_console(0);
}

static void __init ek_init_irq(void)
{
      at91sam9rl_init_interrupts(NULL);
}


/*
 * USB HS Device port
 */
static struct usba_platform_data __initdata ek_usba_udc_data = {
      .vbus_pin   = AT91_PIN_PA8,
};


/*
 * MCI (SD/MMC)
 */
static struct at91_mmc_data __initdata ek_mmc_data = {
      .wire4            = 1,
      .det_pin    = AT91_PIN_PA15,
//    .wp_pin           = ... not connected
//    .vcc_pin    = ... not connected
};


/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
      {
            .name = "Partition 1",
            .offset     = 0,
            .size = SZ_256K,
      },
      {
            .name = "Partition 2",
            .offset     = MTDPART_OFS_NXTBLK,
            .size = MTDPART_SIZ_FULL,
      },
};

static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
{
      *num_partitions = ARRAY_SIZE(ek_nand_partition);
      return ek_nand_partition;
}

static struct atmel_nand_data __initdata ek_nand_data = {
      .ale        = 21,
      .cle        = 22,
//    .det_pin    = ... not connected
      .rdy_pin    = AT91_PIN_PD17,
      .enable_pin = AT91_PIN_PB6,
      .partition_info   = nand_partitions,
};

static struct sam9_smc_config __initdata ek_nand_smc_config = {
      .ncs_read_setup         = 0,
      .nrd_setup        = 1,
      .ncs_write_setup  = 0,
      .nwe_setup        = 1,

      .ncs_read_pulse         = 3,
      .nrd_pulse        = 3,
      .ncs_write_pulse  = 3,
      .nwe_pulse        = 3,

      .read_cycle       = 5,
      .write_cycle            = 5,

      .mode             = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
      .tdf_cycles       = 2,
};

static void __init ek_add_device_nand(void)
{
      /* configure chip-select 3 (NAND) */
      sam9_smc_configure(3, &ek_nand_smc_config);

      at91_add_device_nand(&ek_nand_data);
}


/*
 * SPI devices
 */
static struct spi_board_info ek_spi_devices[] = {
      {     /* DataFlash chip */
            .modalias   = "mtd_dataflash",
            .chip_select      = 0,
            .max_speed_hz     = 15 * 1000 * 1000,
            .bus_num    = 0,
      },
};


/*
 * LCD Controller
 */
#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
static struct fb_videomode at91_tft_vga_modes[] = {
      {
            .name       = "TX09D50VM1CCA @ 60",
            .refresh    = 60,
            .xres       = 240,            .yres       = 320,
            .pixclock   = KHZ2PICOS(4965),

            .left_margin      = 1,        .right_margin     = 33,
            .upper_margin     = 1,        .lower_margin     = 0,
            .hsync_len  = 5,        .vsync_len  = 1,

            .sync       = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
            .vmode            = FB_VMODE_NONINTERLACED,
      },
};

static struct fb_monspecs at91fb_default_monspecs = {
      .manufacturer     = "HIT",
      .monitor    = "TX09D50VM1CCA",

      .modedb           = at91_tft_vga_modes,
      .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
      .hfmin            = 15000,
      .hfmax            = 64000,
      .vfmin            = 50,
      .vfmax            = 150,
};

#define AT91SAM9RL_DEFAULT_LCDCON2  (ATMEL_LCDC_MEMOR_LITTLE \
                              | ATMEL_LCDC_DISTYPE_TFT \
                              | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)

static void at91_lcdc_power_control(int on)
{
      if (on)
            at91_set_gpio_value(AT91_PIN_PC1, 0);     /* power up */
      else
            at91_set_gpio_value(AT91_PIN_PC1, 1);     /* power down */
}

/* Driver datas */
static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
      .lcdcon_is_backlight            = true,
      .default_bpp                  = 16,
      .default_dmacon               = ATMEL_LCDC_DMAEN,
      .default_lcdcon2        = AT91SAM9RL_DEFAULT_LCDCON2,
      .default_monspecs       = &at91fb_default_monspecs,
      .atmel_lcdfb_power_control    = at91_lcdc_power_control,
      .guard_time             = 1,
      .lcd_wiring_mode        = ATMEL_LCDC_WIRING_RGB,
};

#else
static struct atmel_lcdfb_info __initdata ek_lcdc_data;
#endif


/*
 * AC97
 * reset_pin is not connected: NRST
 */
static struct ac97c_platform_data ek_ac97_data = {
};


/*
 * LEDs
 */
static struct gpio_led ek_leds[] = {
      {     /* "bottom" led, green, userled1 to be defined */
            .name             = "ds1",
            .gpio             = AT91_PIN_PD15,
            .active_low       = 1,
            .default_trigger  = "none",
      },
      {     /* "bottom" led, green, userled2 to be defined */
            .name             = "ds2",
            .gpio             = AT91_PIN_PD16,
            .active_low       = 1,
            .default_trigger  = "none",
      },
      {     /* "power" led, yellow */
            .name             = "ds3",
            .gpio             = AT91_PIN_PD14,
            .default_trigger  = "heartbeat",
      }
};


/*
 * Touchscreen
 */
static struct at91_tsadcc_data ek_tsadcc_data = {
      .adc_clock        = 1000000,
      .pendet_debounce  = 0x0f,
      .ts_sample_hold_time    = 0x03,
};


/*
 * GPIO Buttons
 */
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
      {
            .gpio       = AT91_PIN_PB0,
            .code       = BTN_2,
            .desc       = "Right Click",
            .active_low = 1,
            .wakeup           = 1,
      },
      {
            .gpio       = AT91_PIN_PB1,
            .code       = BTN_1,
            .desc       = "Left Click",
            .active_low = 1,
            .wakeup           = 1,
      }
};

static struct gpio_keys_platform_data ek_button_data = {
      .buttons    = ek_buttons,
      .nbuttons   = ARRAY_SIZE(ek_buttons),
};

static struct platform_device ek_button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &ek_button_data,
      }
};

static void __init ek_add_device_buttons(void)
{
      at91_set_gpio_input(AT91_PIN_PB1, 1);     /* btn1 */
      at91_set_deglitch(AT91_PIN_PB1, 1);
      at91_set_gpio_input(AT91_PIN_PB0, 1);     /* btn2 */
      at91_set_deglitch(AT91_PIN_PB0, 1);

      platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif


static void __init ek_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* USB HS */
      at91_add_device_usba(&ek_usba_udc_data);
      /* I2C */
      at91_add_device_i2c(NULL, 0);
      /* NAND */
      ek_add_device_nand();
      /* SPI */
      at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
      /* MMC */
      at91_add_device_mmc(0, &ek_mmc_data);
      /* LCD Controller */
      at91_add_device_lcdc(&ek_lcdc_data);
      /* AC97 */
      at91_add_device_ac97(&ek_ac97_data);
      /* Touch Screen Controller */
      at91_add_device_tsadcc(&ek_tsadcc_data);
      /* LEDs */
      at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
      /* Push Buttons */
      ek_add_device_buttons();
}

MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
      /* Maintainer: Atmel */
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91sam926x_timer,
      .map_io           = ek_map_io,
      .init_irq   = ek_init_irq,
      .init_machine     = ek_board_init,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index