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

board-at572d940hf_ek.c

/*
 * linux/arch/arm/mach-at91/board-at572d940hf_ek.c
 *
 * Copyright (C) 2008 Atmel Antonio R. Costa <costa.antonior@gmail.com>
 * Copyright (C) 2005 SAN People
 *
 * 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/spi/ds1305.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>

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

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


static void __init eb_map_io(void)
{
      /* Initialize processor: 12.500 MHz crystal */
      at572d940hf_initialize(12000000);

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

      /* USART0 on ttyS1. (Rx & Tx only) */
      at91_register_uart(AT572D940HF_ID_US0, 1, 0);

      /* USART1 on ttyS2. (Rx & Tx only) */
      at91_register_uart(AT572D940HF_ID_US1, 2, 0);

      /* USART2 on ttyS3. (Tx & Rx only */
      at91_register_uart(AT572D940HF_ID_US2, 3, 0);

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

static void __init eb_init_irq(void)
{
      at572d940hf_init_interrupts(NULL);
}


/*
 * USB Host Port
 */
static struct at91_usbh_data __initdata eb_usbh_data = {
      .ports            = 2,
};


/*
 * USB Device Port
 */
static struct at91_udc_data __initdata eb_udc_data = {
      .vbus_pin   = 0,        /* no VBUS detection,UDC always on */
      .pullup_pin = 0,        /* pull-up driven by UDC */
};


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


/*
 * MACB Ethernet device
 */
static struct at91_eth_data __initdata eb_eth_data = {
      .phy_irq_pin      = AT91_PIN_PB25,
      .is_rmii    = 1,
};

/*
 * NOR flash
 */

static struct mtd_partition eb_nor_partitions[] = {
      {
            .name       = "Raw Environment",
            .offset           = 0,
            .size       = SZ_4M,
            .mask_flags = 0,
      },
      {
            .name       = "OS FS",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 3 * SZ_1M,
            .mask_flags = 0,
      },
      {
            .name       = "APP FS",
            .offset           = MTDPART_OFS_APPEND,
            .size       = MTDPART_SIZ_FULL,
            .mask_flags = 0,
      },
};

static void nor_flash_set_vpp(struct map_info* mi, int i) {
};

static struct physmap_flash_data nor_flash_data = {
      .width            = 4,
      .parts            = eb_nor_partitions,
      .nr_parts   = ARRAY_SIZE(eb_nor_partitions),
      .set_vpp    = nor_flash_set_vpp,
};

static struct resource nor_flash_resources[] = {
      {
            .start      = AT91_CHIPSELECT_0,
            .end  = AT91_CHIPSELECT_0 + SZ_16M - 1,
            .flags      = IORESOURCE_MEM,
      },
};

static struct platform_device nor_flash = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev        = {
                        .platform_data = &nor_flash_data,
                  },
      .resource   = nor_flash_resources,
      .num_resources    = ARRAY_SIZE(nor_flash_resources),
};

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

      .ncs_read_pulse         = 7,
      .nrd_pulse        = 7,
      .ncs_write_pulse  = 7,
      .nwe_pulse        = 7,

      .read_cycle       = 9,
      .write_cycle            = 9,

      .mode             = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_32,
      .tdf_cycles       = 1,
};

static void __init eb_add_device_nor(void)
{
      /* configure chip-select 0 (NOR) */
      sam9_smc_configure(0, &eb_nor_smc_config);
      platform_device_register(&nor_flash);
}

/*
 * NAND flash
 */
static struct mtd_partition __initdata eb_nand_partition[] = {
      {
            .name = "Partition 1",
            .offset     = 0,
            .size = SZ_16M,
      },
      {
            .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(eb_nand_partition);
      return eb_nand_partition;
}

static struct atmel_nand_data __initdata eb_nand_data = {
      .ale        = 22,
      .cle        = 21,
/*    .det_pin    = ... not connected */
/*    .rdy_pin    = AT91_PIN_PC16, */
      .enable_pin = AT91_PIN_PA15,
      .partition_info   = nand_partitions,
#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
      .bus_width_16     = 1,
#else
      .bus_width_16     = 0,
#endif
};

static struct sam9_smc_config __initdata eb_nand_smc_config = {
      .ncs_read_setup         = 0,
      .nrd_setup        = 0,
      .ncs_write_setup  = 1,
      .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,
      .tdf_cycles       = 12,
};

static void __init eb_add_device_nand(void)
{
      /* setup bus-width (8 or 16) */
      if (eb_nand_data.bus_width_16)
            eb_nand_smc_config.mode |= AT91_SMC_DBW_16;
      else
            eb_nand_smc_config.mode |= AT91_SMC_DBW_8;

      /* configure chip-select 3 (NAND) */
      sam9_smc_configure(3, &eb_nand_smc_config);

      at91_add_device_nand(&eb_nand_data);
}


/*
 * SPI devices
 */
static struct resource rtc_resources[] = {
      [0] = {
            .start      = AT572D940HF_ID_IRQ1,
            .end  = AT572D940HF_ID_IRQ1,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct ds1305_platform_data ds1306_data = {
      .is_ds1306  = true,
      .en_1hz           = false,
};

static struct spi_board_info eb_spi_devices[] = {
      {     /* RTC Dallas DS1306 */
            .modalias   = "rtc-ds1305",
            .chip_select      = 3,
            .mode       = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA,
            .max_speed_hz     = 500000,
            .bus_num    = 0,
            .irq        = AT572D940HF_ID_IRQ1,
            .platform_data    = (void *) &ds1306_data,
      },
#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
      {     /* Dataflash card */
            .modalias   = "mtd_dataflash",
            .chip_select      = 0,
            .max_speed_hz     = 15 * 1000 * 1000,
            .bus_num    = 0,
      },
#endif
};

static void __init eb_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* USB Host */
      at91_add_device_usbh(&eb_usbh_data);
      /* USB Device */
      at91_add_device_udc(&eb_udc_data);
      /* I2C */
      at91_add_device_i2c(NULL, 0);
      /* NOR */
      eb_add_device_nor();
      /* NAND */
      eb_add_device_nand();
      /* SPI */
      at91_add_device_spi(eb_spi_devices, ARRAY_SIZE(eb_spi_devices));
      /* MMC */
      at91_add_device_mmc(0, &eb_mmc_data);
      /* Ethernet */
      at91_add_device_eth(&eb_eth_data);
      /* mAgic */
      at91_add_device_mAgic();
}

MACHINE_START(AT572D940HFEB, "Atmel AT91D940HF-EB")
      /* Maintainer: Atmel <costa.antonior@gmail.com> */
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91sam926x_timer,
      .map_io           = eb_map_io,
      .init_irq   = eb_init_irq,
      .init_machine     = eb_board_init,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index