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board-ek.c

/*
 * linux/arch/arm/mach-at91/board-ek.c
 *
 *  Copyright (C) 2005 SAN People
 *
 *  Epson S1D framebuffer glue code is:
 *     Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#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/mtd/physmap.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/at91rm9200_mc.h>

#include "generic.h"


static void __init ek_map_io(void)
{
      /* Initialize processor: 18.432 MHz crystal */
      at91rm9200_initialize(18432000, AT91RM9200_BGA);

      /* Setup the LEDs */
      at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);

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

      /* USART1 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
      at91_register_uart(AT91RM9200_ID_US1, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
                     | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
                     | ATMEL_UART_RI);

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

static void __init ek_init_irq(void)
{
      at91rm9200_init_interrupts(NULL);
}

static struct at91_eth_data __initdata ek_eth_data = {
      .phy_irq_pin      = AT91_PIN_PC4,
      .is_rmii    = 1,
};

static struct at91_usbh_data __initdata ek_usbh_data = {
      .ports            = 2,
};

static struct at91_udc_data __initdata ek_udc_data = {
      .vbus_pin   = AT91_PIN_PD4,
      .pullup_pin = AT91_PIN_PD5,
};

static struct at91_mmc_data __initdata ek_mmc_data = {
      .det_pin    = AT91_PIN_PB27,
      .slot_b           = 0,
      .wire4            = 1,
      .wp_pin           = AT91_PIN_PA17,
};

static struct spi_board_info ek_spi_devices[] = {
      {     /* DataFlash chip */
            .modalias   = "mtd_dataflash",
            .chip_select      = 0,
            .max_speed_hz     = 15 * 1000 * 1000,
      },
#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
      {     /* DataFlash card */
            .modalias   = "mtd_dataflash",
            .chip_select      = 3,
            .max_speed_hz     = 15 * 1000 * 1000,
      },
#endif
};

static struct i2c_board_info __initdata ek_i2c_devices[] = {
      {
            I2C_BOARD_INFO("ics1523", 0x26),
      },
      {
            I2C_BOARD_INFO("dac3550", 0x4d),
      }
};

#define EK_FLASH_BASE   AT91_CHIPSELECT_0
#define EK_FLASH_SIZE   SZ_2M

static struct physmap_flash_data ek_flash_data = {
      .width            = 2,
};

static struct resource ek_flash_resource = {
      .start            = EK_FLASH_BASE,
      .end        = EK_FLASH_BASE + EK_FLASH_SIZE - 1,
      .flags            = IORESOURCE_MEM,
};

static struct platform_device ek_flash = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev        = {
                        .platform_data    = &ek_flash_data,
                  },
      .resource   = &ek_flash_resource,
      .num_resources    = 1,
};

static struct gpio_led ek_leds[] = {
      {     /* "user led 1", DS2 */
            .name             = "green",
            .gpio             = AT91_PIN_PB0,
            .active_low       = 1,
            .default_trigger  = "mmc0",
      },
      {     /* "user led 2", DS4 */
            .name             = "yellow",
            .gpio             = AT91_PIN_PB1,
            .active_low       = 1,
            .default_trigger  = "heartbeat",
      },
      {     /* "user led 3", DS6 */
            .name             = "red",
            .gpio             = AT91_PIN_PB2,
            .active_low       = 1,
      }
};

static void __init ek_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* Ethernet */
      at91_add_device_eth(&ek_eth_data);
      /* USB Host */
      at91_add_device_usbh(&ek_usbh_data);
      /* USB Device */
      at91_add_device_udc(&ek_udc_data);
      at91_set_multi_drive(ek_udc_data.pullup_pin, 1);      /* pullup_pin is connected to reset */
      /* I2C */
      at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
      /* SPI */
      at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
      /* DataFlash card */
      at91_set_gpio_output(AT91_PIN_PB22, 0);
#else
      /* MMC */
      at91_set_gpio_output(AT91_PIN_PB22, 1);   /* this MMC card slot can optionally use SPI signaling (CS3). */
      at91_add_device_mmc(0, &ek_mmc_data);
#endif
      /* NOR Flash */
      platform_device_register(&ek_flash);
      /* LEDs */
      at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
      /* VGA */
//    ek_add_device_video();
}

MACHINE_START(AT91RM9200EK, "Atmel AT91RM9200-EK")
      /* Maintainer: SAN People/Atmel */
      .phys_io    = AT91_BASE_SYS,
      .io_pg_offst      = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91rm9200_timer,
      .map_io           = ek_map_io,
      .init_irq   = ek_init_irq,
      .init_machine     = ek_board_init,
MACHINE_END

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