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board-csb337.c

/*
 * 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/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/gpio.h>

#include "generic.h"


static void __init csb337_map_io(void)
{
      /* Initialize processor: 3.6864 MHz crystal */
      at91rm9200_initialize(3686400, AT91RM9200_BGA);

      /* Setup the LEDs */
      at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);

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

      /* make console=ttyS0 the default */
      at91_set_serial_console(0);
}

static void __init csb337_init_irq(void)
{
      at91rm9200_init_interrupts(NULL);
}

static struct at91_eth_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,
};

static struct at91_udc_data __initdata csb337_udc_data = {
      // this has no VBUS sensing pin
      .pullup_pin = AT91_PIN_PA24,
};

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 at91_mmc_data __initdata csb337_mmc_data = {
      .det_pin    = AT91_PIN_PD5,
      .slot_b           = 0,
      .wire4            = 1,
      .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 */
      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_mmc(0, &csb337_mmc_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 */
      .phys_io    = AT91_BASE_SYS,
      .io_pg_offst      = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91rm9200_timer,
      .map_io           = csb337_map_io,
      .init_irq   = csb337_init_irq,
      .init_machine     = csb337_board_init,
MACHINE_END

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