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board-dk.c

/*
 * linux/arch/arm/mach-at91/board-dk.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 dk_map_io(void)
{
      /* Initialize processor: 18.432 MHz crystal */
      at91rm9200_initialize(18432000, AT91RM9200_BGA);

      /* Setup the LEDs */
      at91_init_leds(AT91_PIN_PB2, 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 dk_init_irq(void)
{
      at91rm9200_init_interrupts(NULL);
}

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

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

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

static struct at91_cf_data __initdata dk_cf_data = {
      .det_pin    = AT91_PIN_PB0,
      .rst_pin    = AT91_PIN_PC5,
      // .irq_pin = ... not connected
      // .vcc_pin = ... always powered
};

static struct at91_mmc_data __initdata dk_mmc_data = {
      .slot_b           = 0,
      .wire4            = 1,
};

static struct spi_board_info dk_spi_devices[] = {
      {     /* DataFlash chip */
            .modalias   = "mtd_dataflash",
            .chip_select      = 0,
            .max_speed_hz     = 15 * 1000 * 1000,
      },
      {     /* UR6HCPS2-SP40 PS2-to-SPI adapter */
            .modalias   = "ur6hcps2",
            .chip_select      = 1,
            .max_speed_hz     = 250 *  1000,
      },
      {     /* TLV1504 ADC, 4 channels, 10 bits; one is a temp sensor */
            .modalias   = "tlv1504",
            .chip_select      = 2,
            .max_speed_hz     = 20 * 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 dk_i2c_devices[] = {
      {
            I2C_BOARD_INFO("ics1523", 0x26),
      },
      {
            I2C_BOARD_INFO("x9429", 0x28),
      },
      {
            I2C_BOARD_INFO("24c1024", 0x50),
      }
};

static struct mtd_partition __initdata dk_nand_partition[] = {
      {
            .name = "NAND Partition 1",
            .offset     = 0,
            .size = MTDPART_SIZ_FULL,
      },
};

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

static struct atmel_nand_data __initdata dk_nand_data = {
      .ale        = 22,
      .cle        = 21,
      .det_pin    = AT91_PIN_PB1,
      .rdy_pin    = AT91_PIN_PC2,
      // .enable_pin    = ... not there
      .partition_info   = nand_partitions,
};

#define DK_FLASH_BASE   AT91_CHIPSELECT_0
#define DK_FLASH_SIZE   SZ_2M

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

static struct resource dk_flash_resource = {
      .start            = DK_FLASH_BASE,
      .end        = DK_FLASH_BASE + DK_FLASH_SIZE - 1,
      .flags            = IORESOURCE_MEM,
};

static struct platform_device dk_flash = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev        = {
                        .platform_data    = &dk_flash_data,
                  },
      .resource   = &dk_flash_resource,
      .num_resources    = 1,
};

static struct gpio_led dk_leds[] = {
      {
            .name             = "led0",
            .gpio             = AT91_PIN_PB2,
            .active_low       = 1,
            .default_trigger  = "heartbeat",
      }
};

static void __init dk_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* Ethernet */
      at91_add_device_eth(&dk_eth_data);
      /* USB Host */
      at91_add_device_usbh(&dk_usbh_data);
      /* USB Device */
      at91_add_device_udc(&dk_udc_data);
      at91_set_multi_drive(dk_udc_data.pullup_pin, 1);      /* pullup_pin is connected to reset */
      /* Compact Flash */
      at91_add_device_cf(&dk_cf_data);
      /* I2C */
      at91_add_device_i2c(dk_i2c_devices, ARRAY_SIZE(dk_i2c_devices));
      /* SPI */
      at91_add_device_spi(dk_spi_devices, ARRAY_SIZE(dk_spi_devices));
#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
      /* DataFlash card */
      at91_set_gpio_output(AT91_PIN_PB7, 0);
#else
      /* MMC */
      at91_set_gpio_output(AT91_PIN_PB7, 1);    /* this MMC card slot can optionally use SPI signaling (CS3). */
      at91_add_device_mmc(0, &dk_mmc_data);
#endif
      /* NAND */
      at91_add_device_nand(&dk_nand_data);
      /* NOR Flash */
      platform_device_register(&dk_flash);
      /* LEDs */
      at91_gpio_leds(dk_leds, ARRAY_SIZE(dk_leds));
      /* VGA */
//    dk_add_device_video();
}

MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK")
      /* 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           = dk_map_io,
      .init_irq   = dk_init_irq,
      .init_machine     = dk_board_init,
MACHINE_END

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