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board-snapper9260.c

/*
 * linux/arch/arm/mach-at91/board-snapper9260.c
 *
 *  Copyright (C) 2010 Bluewater System Ltd
 *
 * Author: Andre Renaud <andre@bluewatersys.com>
 * Author: Ryan Mallon  <ryan@bluewatersys.com>
 *
 * 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/at91sam9_smc.h>

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

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

static void __init snapper9260_map_io(void)
{
      at91sam9260_initialize(18432000);

      /* Debug on ttyS0 */
      at91_register_uart(0, 0, 0);
      at91_set_serial_console(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);
}

static void __init snapper9260_init_irq(void)
{
      at91sam9260_init_interrupts(NULL);
}

static struct at91_usbh_data __initdata snapper9260_usbh_data = {
      .ports            = 2,
};

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

static struct at91_eth_data snapper9260_macb_data = {
      .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 mtd_partition * __init
snapper9260_nand_partition_info(int size, int *num_partitions)
{
      *num_partitions = ARRAY_SIZE(snapper9260_nand_partitions);
      return snapper9260_nand_partitions;
}

static struct atmel_nand_data __initdata snapper9260_nand_data = {
      .ale        = 21,
      .cle        = 22,
      .rdy_pin    = AT91_PIN_PC13,
      .partition_info   = snapper9260_nand_partition_info,
      .bus_width_16     = 0,
};

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),
      },
      {
            /* 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(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));
      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")
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91sam926x_timer,
      .map_io           = snapper9260_map_io,
      .init_irq   = snapper9260_init_irq,
      .init_machine     = snapper9260_board_init,
MACHINE_END



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