board-cam60.c

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/*
 * KwikByte CAM60 (KB9260)
 *
 * based on board-sam9260ek.c
 *   Copyright (C) 2005 SAN People
 *   Copyright (C) 2006 Atmel
 *
 * 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/gpio.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/flash.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/at91_aic.h>
#include <mach/at91sam9_smc.h>

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


static void __init cam60_init_early(void)
{
    /* Initialize processor: 10 MHz crystal */
    at91_initialize(10000000);
}

/*
 * USB Host
 */
static struct at91_usbh_data __initdata cam60_usbh_data = {
    .ports      = 1,
    .vbus_pin   = {-EINVAL, -EINVAL},
    .overcurrent_pin= {-EINVAL, -EINVAL},
};


/*
 * SPI devices.
 */
#if defined(CONFIG_MTD_DATAFLASH)
static struct mtd_partition cam60_spi_partitions[] = {
    {
        .name   = "BOOT1",
        .offset = 0,
        .size   = 4 * 1056,
    },
    {
        .name   = "BOOT2",
        .offset = MTDPART_OFS_NXTBLK,
        .size   = 256 * 1056,
    },
    {
        .name   = "kernel",
        .offset = MTDPART_OFS_NXTBLK,
        .size   = 2222 * 1056,
    },
    {
        .name   = "file system",
        .offset = MTDPART_OFS_NXTBLK,
        .size   = MTDPART_SIZ_FULL,
    },
};

static struct flash_platform_data cam60_spi_flash_platform_data = {
    .name       = "spi_flash",
    .parts      = cam60_spi_partitions,
    .nr_parts   = ARRAY_SIZE(cam60_spi_partitions)
};
#endif

static struct spi_board_info cam60_spi_devices[] __initdata = {
#if defined(CONFIG_MTD_DATAFLASH)
    {   /* DataFlash chip */
        .modalias   = "mtd_dataflash",
        .chip_select    = 0,
        .max_speed_hz   = 15 * 1000 * 1000,
        .bus_num    = 0,
        .platform_data  = &cam60_spi_flash_platform_data
    },
#endif
};


/*
 * MACB Ethernet device
 */
static struct __initdata macb_platform_data cam60_macb_data = {
    .phy_irq_pin    = AT91_PIN_PB5,
    .is_rmii    = 0,
};


/*
 * NAND Flash
 */
static struct mtd_partition __initdata cam60_nand_partition[] = {
    {
        .name   = "nand_fs",
        .offset = 0,
        .size   = MTDPART_SIZ_FULL,
    },
};

static struct atmel_nand_data __initdata cam60_nand_data = {
    .ale        = 21,
    .cle        = 22,
    .det_pin    = -EINVAL,
    .rdy_pin    = AT91_PIN_PA9,
    .enable_pin = AT91_PIN_PA7,
    .ecc_mode   = NAND_ECC_SOFT,
    .parts      = cam60_nand_partition,
    .num_parts  = ARRAY_SIZE(cam60_nand_partition),
};

static struct sam9_smc_config __initdata cam60_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 cam60_add_device_nand(void)
{
    /* configure chip-select 3 (NAND) */
    sam9_smc_configure(0, 3, &cam60_nand_smc_config);

    at91_add_device_nand(&cam60_nand_data);
}


static void __init cam60_board_init(void)
{
    /* Serial */
    /* DBGU on ttyS0. (Rx & Tx only) */
    at91_register_uart(0, 0, 0);
    at91_add_device_serial();
    /* SPI */
    at91_add_device_spi(cam60_spi_devices, ARRAY_SIZE(cam60_spi_devices));
    /* Ethernet */
    at91_add_device_eth(&cam60_macb_data);
    /* USB Host */
    /* enable USB power supply circuit */
    at91_set_gpio_output(AT91_PIN_PB18, 1);
    at91_add_device_usbh(&cam60_usbh_data);
    /* NAND */
    cam60_add_device_nand();
}

MACHINE_START(CAM60, "KwikByte CAM60")
    /* Maintainer: KwikByte */
    .timer      = &at91sam926x_timer,
    .map_io     = at91_map_io,
    .handle_irq = at91_aic_handle_irq,
    .init_early = cam60_init_early,
    .init_irq   = at91_init_irq_default,
    .init_machine   = cam60_board_init,
MACHINE_END