board-snapper9260.c

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/*
 * linux/arch/arm/mach-at91/board-snapper9260.c
 *
 *  Copyright (C) 2010 Bluewater System Ltd
 *
 * Author: Andre Renaud <[email protected]>
 * Author: Ryan Mallon
 *
 * 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/init.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/i2c/pca953x.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>

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

#define SNAPPER9260_IO_EXP_GPIO(x)  (NR_BUILTIN_GPIO + (x))

static void __init snapper9260_init_early(void)
{
    at91_initialize(18432000);
}

static struct at91_usbh_data __initdata snapper9260_usbh_data = {
    .ports      = 2,
    .vbus_pin   = {-EINVAL, -EINVAL},
    .overcurrent_pin= {-EINVAL, -EINVAL},
};

static struct at91_udc_data __initdata snapper9260_udc_data = {
    .vbus_pin       = SNAPPER9260_IO_EXP_GPIO(5),
    .vbus_active_low    = 1,
    .vbus_polled        = 1,
    .pullup_pin     = -EINVAL,
};

static struct macb_platform_data snapper9260_macb_data = {
    .phy_irq_pin    = -EINVAL,
    .is_rmii    = 1,
};

static struct mtd_partition __initdata snapper9260_nand_partitions[] = {
    {
        .name   = "Preboot",
        .offset = 0,
        .size   = SZ_128K,
    },
    {
        .name   = "Bootloader",
        .offset = MTDPART_OFS_APPEND,
        .size   = SZ_256K,
    },
    {
        .name   = "Environment",
        .offset = MTDPART_OFS_APPEND,
        .size   = SZ_128K,
    },
    {
        .name   = "Kernel",
        .offset = MTDPART_OFS_APPEND,
        .size   = SZ_4M,
    },
    {
        .name   = "Filesystem",
        .offset = MTDPART_OFS_APPEND,
        .size   = MTDPART_SIZ_FULL,
    },
};

static struct atmel_nand_data __initdata snapper9260_nand_data = {
    .ale        = 21,
    .cle        = 22,
    .rdy_pin    = AT91_PIN_PC13,
    .parts      = snapper9260_nand_partitions,
    .num_parts  = ARRAY_SIZE(snapper9260_nand_partitions),
    .bus_width_16   = 0,
    .enable_pin = -EINVAL,
    .det_pin    = -EINVAL,
    .ecc_mode   = NAND_ECC_SOFT,
};

static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
    .ncs_read_setup     = 0,
    .nrd_setup      = 0,
    .ncs_write_setup    = 0,
    .nwe_setup      = 0,

    .ncs_read_pulse     = 5,
    .nrd_pulse      = 2,
    .ncs_write_pulse    = 5,
    .nwe_pulse      = 2,

    .read_cycle     = 7,
    .write_cycle        = 7,

    .mode           = (AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
                   AT91_SMC_EXNWMODE_DISABLE),
    .tdf_cycles     = 1,
};

static struct pca953x_platform_data snapper9260_io_expander_data = {
    .gpio_base      = SNAPPER9260_IO_EXP_GPIO(0),
};

static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
    {
        /* IO expander */
        I2C_BOARD_INFO("max7312", 0x28),
        .platform_data = &snapper9260_io_expander_data,
    },
    {
        /* Audio codec */
        I2C_BOARD_INFO("tlv320aic23", 0x1a),
    },
};

static struct i2c_board_info __initdata snapper9260_i2c_isl1208 = {
        /* RTC */
        I2C_BOARD_INFO("isl1208", 0x6f),
};

static void __init snapper9260_add_device_nand(void)
{
    at91_set_A_periph(AT91_PIN_PC14, 0);
    sam9_smc_configure(0, 3, &snapper9260_nand_smc_config);
    at91_add_device_nand(&snapper9260_nand_data);
}

static void __init snapper9260_board_init(void)
{
    at91_add_device_i2c(snapper9260_i2c_devices,
                ARRAY_SIZE(snapper9260_i2c_devices));

    snapper9260_i2c_isl1208.irq = gpio_to_irq(AT91_PIN_PA31);
    i2c_register_board_info(0, &snapper9260_i2c_isl1208, 1);

    /* Debug on ttyS0 */
    at91_register_uart(0, 0, 0);

    at91_register_uart(AT91SAM9260_ID_US0, 1,
               ATMEL_UART_CTS | ATMEL_UART_RTS);
    at91_register_uart(AT91SAM9260_ID_US1, 2,
               ATMEL_UART_CTS | ATMEL_UART_RTS);
    at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
    at91_add_device_serial();
    at91_add_device_usbh(&snapper9260_usbh_data);
    at91_add_device_udc(&snapper9260_udc_data);
    at91_add_device_eth(&snapper9260_macb_data);
    at91_add_device_ssc(AT91SAM9260_ID_SSC, (ATMEL_SSC_TF | ATMEL_SSC_TK |
                         ATMEL_SSC_TD | ATMEL_SSC_RD));
    snapper9260_add_device_nand();
}

MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
    .timer      = &at91sam926x_timer,
    .map_io     = at91_map_io,
    .handle_irq = at91_aic_handle_irq,
    .init_early = snapper9260_init_early,
    .init_irq   = at91_init_irq_default,
    .init_machine   = snapper9260_board_init,
MACHINE_END