/*
 * linux/arch/arm/mach-at91/board-sam9-l9260.c
 *
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2006 Atmel
 *  Copyright (C) 2007 Olimex Ltd
 *
 * 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 <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/at91sam9_smc.h>

#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"


static void __init ek_init_early(void)
{
        /* Initialize processor: 18.432 MHz crystal */
        at91_initialize(18432000);
}

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

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


/*
 * SPI devices.
 */
static struct spi_board_info ek_spi_devices[] = {
#if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
        {       /* DataFlash chip */
                .modalias       = "mtd_dataflash",
                .chip_select    = 1,
                .max_speed_hz   = 15 * 1000 * 1000,
                .bus_num        = 0,
        },
#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
#endif
};


/*
 * MACB Ethernet device
 */
static struct macb_platform_data __initdata ek_macb_data = {
        .phy_irq_pin    = AT91_PIN_PA7,
        .is_rmii        = 0,
};


/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
        {
                .name   = "Bootloader Area",
                .offset = 0,
                .size   = 10 * SZ_1M,
        },
        {
                .name   = "User Area",
                .offset = MTDPART_OFS_NXTBLK,
                .size   = MTDPART_SIZ_FULL,
        },
};

static struct atmel_nand_data __initdata ek_nand_data = {
        .ale            = 21,
        .cle            = 22,
        .det_pin        = -EINVAL,
        .rdy_pin        = AT91_PIN_PC13,
        .enable_pin     = AT91_PIN_PC14,
        .ecc_mode       = NAND_ECC_SOFT,
        .parts          = ek_nand_partition,
        .num_parts      = ARRAY_SIZE(ek_nand_partition),
};

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(0, 3, &ek_nand_smc_config);

        at91_add_device_nand(&ek_nand_data);
}


/*
 * MCI (SD/MMC)
 */
static struct mci_platform_data __initdata ek_mci0_data = {
        .slot[1] = {
                .bus_width      = 4,
                .detect_pin     = AT91_PIN_PC8,
                .wp_pin         = AT91_PIN_PC4,
        },
};

/*
 * LEDs
 */
static struct gpio_led ek_leds[] = {
        {       /* D1 */
                .name                   = "led1",
                .gpio                   = AT91_PIN_PA9,
                .active_low             = 1,
                .default_trigger        = "heartbeat",
        },
        {       /* D2 */
                .name                   = "led2",
                .gpio                   = AT91_PIN_PA6,
                .active_low             = 1,
                .default_trigger        = "timer",
        }
};

static void __init ek_board_init(void)
{
        /* Serial */
        /* DBGU on ttyS0. (Rx & Tx only) */
        at91_register_uart(0, 0, 0);

        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
        at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
                           | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
                           | ATMEL_UART_RI);

        /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
        at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
        at91_add_device_serial();
        /* USB Host */
        at91_add_device_usbh(&ek_usbh_data);
        /* USB Device */
        at91_add_device_udc(&ek_udc_data);
        /* SPI */
        at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
        /* NAND */
        ek_add_device_nand();
        /* Ethernet */
        at91_add_device_eth(&ek_macb_data);
        /* MMC */
        at91_add_device_mci(0, &ek_mci0_data);
        /* I2C */
        at91_add_device_i2c(NULL, 0);
        /* LEDs */
        at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
}

MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260")
        /* Maintainer: Olimex */
        .init_time      = at91sam926x_pit_init,
        .map_io         = at91_map_io,
        .handle_irq     = at91_aic_handle_irq,
        .init_early     = ek_init_early,
        .init_irq       = at91_init_irq_default,
        .init_machine   = ek_board_init,
MACHINE_END