/*
 * linux/arch/arm/mach-at91/board-usb-a9260.c
 *
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2006 Atmel
 *  Copyright (C) 2007 Calao-systems
 *
 * 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/gpio_keys.h>
#include <linux/input.h>
#include <linux/clk.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 */
        at91sam9260_initialize(12000000);

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

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

static void __init ek_init_irq(void)
{
        at91sam9260_init_interrupts(NULL);
}


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

/*
 * USB Device port
 */
static struct at91_udc_data __initdata ek_udc_data = {
        .vbus_pin       = AT91_PIN_PC5,
        .pullup_pin     = 0,            /* pull-up driven by UDC */
};

/*
 * MACB Ethernet device
 */
static struct at91_eth_data __initdata ek_macb_data = {
        .phy_irq_pin    = AT91_PIN_PA31,
        .is_rmii        = 1,
};

/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
        {
                .name   = "Uboot & Kernel",
                .offset = 0,
                .size   = SZ_16M,
        },
        {
                .name   = "Root FS",
                .offset = MTDPART_OFS_NXTBLK,
                .size   = 120 * SZ_1M,
        },
        {
                .name   = "FS",
                .offset = MTDPART_OFS_NXTBLK,
                .size   = 120 * SZ_1M,
        }
};

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_PC13,
        .enable_pin     = AT91_PIN_PC14,
        .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);
}

/*
 * GPIO Buttons
 */

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
        {       /* USER PUSH BUTTON */
                .code           = KEY_ENTER,
                .gpio           = AT91_PIN_PB10,
                .active_low     = 1,
                .desc           = "user_pb",
                .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_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
        at91_set_deglitch(AT91_PIN_PB10, 1);

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

/*
 * LEDs
 */
static struct gpio_led ek_leds[] = {
        {       /* user_led (green) */
                .name                   = "user_led",
                .gpio                   = AT91_PIN_PB21,
                .active_low             = 0,
                .default_trigger        = "heartbeat",
        }
};

static void __init ek_board_init(void)
{
        /* Serial */
        at91_add_device_serial();
        /* USB Host */
        at91_add_device_usbh(&ek_usbh_data);
        /* USB Device */
        at91_add_device_udc(&ek_udc_data);
        /* NAND */
        ek_add_device_nand();
        /* I2C */
        at91_add_device_i2c(NULL, 0);
        /* Ethernet */
        at91_add_device_eth(&ek_macb_data);
        /* Push Buttons */
        ek_add_device_buttons();
        /* LEDs */
        at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
        /* shutdown controller, wakeup button (5 msec low) */
        at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
                                | AT91_SHDW_RTTWKEN);
}

MACHINE_START(USB_A9260, "CALAO USB_A9260")
        /* Maintainer: calao-systems */
        .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