board-csb337.c

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/*
 * linux/arch/arm/mach-at91/board-csb337.c
 *
 *  Copyright (C) 2005 SAN People
 *
 * 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/mtd/physmap.h>
#include <linux/input.h>
#include <linux/gpio_keys.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/at91_aic.h>

#include "generic.h"


static void __init csb337_init_early(void)
{
    /* Initialize processor: 3.6864 MHz crystal */
    at91_initialize(3686400);
}

static struct macb_platform_data __initdata csb337_eth_data = {
    .phy_irq_pin    = AT91_PIN_PC2,
    .is_rmii    = 0,
};

static struct at91_usbh_data __initdata csb337_usbh_data = {
    .ports      = 2,
    .vbus_pin   = {-EINVAL, -EINVAL},
    .overcurrent_pin= {-EINVAL, -EINVAL},
};

static struct at91_udc_data __initdata csb337_udc_data = {
    .pullup_pin = AT91_PIN_PA24,
    .vbus_pin   = -EINVAL,
};

static struct i2c_board_info __initdata csb337_i2c_devices[] = {
    {
        I2C_BOARD_INFO("ds1307", 0x68),
    },
};

static struct at91_cf_data __initdata csb337_cf_data = {
    /*
     * connector P4 on the CSB 337 mates to
     * connector P8 on the CSB 300CF
     */

    /* CSB337 specific */
    .det_pin    = AT91_PIN_PC3,

    /* CSB300CF specific */
    .irq_pin    = AT91_PIN_PA19,
    .vcc_pin    = AT91_PIN_PD0,
    .rst_pin    = AT91_PIN_PD2,
};

static struct mci_platform_data __initdata csb337_mci0_data = {
    .slot[0] = {
        .bus_width  = 4,
        .detect_pin = AT91_PIN_PD5,
        .wp_pin     = AT91_PIN_PD6,
    },
};

static struct spi_board_info csb337_spi_devices[] = {
    {   /* CAN controller */
        .modalias   = "sak82c900",
        .chip_select    = 0,
        .max_speed_hz   = 6 * 1000 * 1000,
    },
};

#define CSB_FLASH_BASE  AT91_CHIPSELECT_0
#define CSB_FLASH_SIZE  SZ_8M

static struct mtd_partition csb_flash_partitions[] = {
    {
        .name       = "uMON flash",
        .offset     = 0,
        .size       = MTDPART_SIZ_FULL,
        .mask_flags = MTD_WRITEABLE,    /* read only */
    }
};

static struct physmap_flash_data csb_flash_data = {
    .width      = 2,
    .parts      = csb_flash_partitions,
    .nr_parts   = ARRAY_SIZE(csb_flash_partitions),
};

static struct resource csb_flash_resources[] = {
    {
        .start  = CSB_FLASH_BASE,
        .end    = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
        .flags  = IORESOURCE_MEM,
    }
};

static struct platform_device csb_flash = {
    .name       = "physmap-flash",
    .id     = 0,
    .dev        = {
                .platform_data = &csb_flash_data,
            },
    .resource   = csb_flash_resources,
    .num_resources  = ARRAY_SIZE(csb_flash_resources),
};

/*
 * GPIO Buttons (on CSB300)
 */
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button csb300_buttons[] = {
    {
        .gpio       = AT91_PIN_PB29,
        .code       = BTN_0,
        .desc       = "sw0",
        .active_low = 1,
        .wakeup     = 1,
    },
    {
        .gpio       = AT91_PIN_PB28,
        .code       = BTN_1,
        .desc       = "sw1",
        .active_low = 1,
        .wakeup     = 1,
    },
    {
        .gpio       = AT91_PIN_PA21,
        .code       = BTN_2,
        .desc       = "sw2",
        .active_low = 1,
        .wakeup     = 1,
    }
};

static struct gpio_keys_platform_data csb300_button_data = {
    .buttons    = csb300_buttons,
    .nbuttons   = ARRAY_SIZE(csb300_buttons),
};

static struct platform_device csb300_button_device = {
    .name       = "gpio-keys",
    .id     = -1,
    .num_resources  = 0,
    .dev        = {
        .platform_data  = &csb300_button_data,
    }
};

static void __init csb300_add_device_buttons(void)
{
    at91_set_gpio_input(AT91_PIN_PB29, 1);  /* sw0 */
    at91_set_deglitch(AT91_PIN_PB29, 1);
    at91_set_gpio_input(AT91_PIN_PB28, 1);  /* sw1 */
    at91_set_deglitch(AT91_PIN_PB28, 1);
    at91_set_gpio_input(AT91_PIN_PA21, 1);  /* sw2 */
    at91_set_deglitch(AT91_PIN_PA21, 1);

    platform_device_register(&csb300_button_device);
}
#else
static void __init csb300_add_device_buttons(void) {}
#endif

static struct gpio_led csb_leds[] = {
    {   /* "led0", yellow */
        .name           = "led0",
        .gpio           = AT91_PIN_PB2,
        .active_low     = 1,
        .default_trigger    = "heartbeat",
    },
    {   /* "led1", green */
        .name           = "led1",
        .gpio           = AT91_PIN_PB1,
        .active_low     = 1,
        .default_trigger    = "mmc0",
    },
    {   /* "led2", yellow */
        .name           = "led2",
        .gpio           = AT91_PIN_PB0,
        .active_low     = 1,
        .default_trigger    = "ide-disk",
    }
};


static void __init csb337_board_init(void)
{
    /* Serial */
    /* DBGU on ttyS0 */
    at91_register_uart(0, 0, 0);
    at91_add_device_serial();
    /* Ethernet */
    at91_add_device_eth(&csb337_eth_data);
    /* USB Host */
    at91_add_device_usbh(&csb337_usbh_data);
    /* USB Device */
    at91_add_device_udc(&csb337_udc_data);
    /* I2C */
    at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
    /* Compact Flash */
    at91_set_gpio_input(AT91_PIN_PB22, 1);      /* IOIS16 */
    at91_add_device_cf(&csb337_cf_data);
    /* SPI */
    at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
    /* MMC */
    at91_add_device_mci(0, &csb337_mci0_data);
    /* NOR flash */
    platform_device_register(&csb_flash);
    /* LEDs */
    at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds));
    /* Switches on CSB300 */
    csb300_add_device_buttons();
}

MACHINE_START(CSB337, "Cogent CSB337")
    /* Maintainer: Bill Gatliff */
    .timer      = &at91rm9200_timer,
    .map_io     = at91_map_io,
    .handle_irq = at91_aic_handle_irq,
    .init_early = csb337_init_early,
    .init_irq   = at91_init_irq_default,
    .init_machine   = csb337_board_init,
MACHINE_END