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board-cpuat91.c

/*
 * linux/arch/arm/mach-at91/board-cpuat91.c
 *
 *  Copyright (C) 2009 Eric Benard - eric@eukrea.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/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/plat-ram.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/board.h>
#include <mach/gpio.h>
#include <mach/at91rm9200_mc.h>

#include "generic.h"

static struct gpio_led cpuat91_leds[] = {
      {
            .name             = "led1",
            .default_trigger  = "heartbeat",
            .active_low       = 1,
            .gpio             = AT91_PIN_PC0,
      },
};

static void __init cpuat91_map_io(void)
{
      /* Initialize processor: 18.432 MHz crystal */
      at91rm9200_initialize(18432000, AT91RM9200_PQFP);

      /* DBGU on ttyS0. (Rx & Tx only) */
      at91_register_uart(0, 0, 0);

      /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
      at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
            ATMEL_UART_RTS);

      /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
      at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
            ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
            ATMEL_UART_DCD | ATMEL_UART_RI);

      /* USART2 on ttyS3 (Rx, Tx) */
      at91_register_uart(AT91RM9200_ID_US2, 3, 0);

      /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
      at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
            ATMEL_UART_RTS);

      /* set serial console to ttyS0 (ie, DBGU) */
      at91_set_serial_console(0);
}

static void __init cpuat91_init_irq(void)
{
      at91rm9200_init_interrupts(NULL);
}

static struct at91_eth_data __initdata cpuat91_eth_data = {
      .is_rmii    = 1,
};

static struct at91_usbh_data __initdata cpuat91_usbh_data = {
      .ports            = 1,
};

static struct at91_udc_data __initdata cpuat91_udc_data = {
      .vbus_pin   = AT91_PIN_PC15,
      .pullup_pin = AT91_PIN_PC14,
};

static struct at91_mmc_data __initdata cpuat91_mmc_data = {
      .det_pin    = AT91_PIN_PC2,
      .wire4            = 1,
};

static struct physmap_flash_data cpuat91_flash_data = {
      .width            = 2,
};

static struct resource cpuat91_flash_resource = {
      .start            = AT91_CHIPSELECT_0,
      .end        = AT91_CHIPSELECT_0 + SZ_16M - 1,
      .flags            = IORESOURCE_MEM,
};

static struct platform_device cpuat91_norflash = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev  = {
            .platform_data    = &cpuat91_flash_data,
      },
      .resource   = &cpuat91_flash_resource,
      .num_resources    = 1,
};

#ifdef CONFIG_MTD_PLATRAM
struct platdata_mtd_ram at91_sram_pdata = {
      .mapname    = "SRAM",
      .bankwidth  = 2,
};

static struct resource at91_sram_resource[] = {
      [0] = {
            .start = AT91RM9200_SRAM_BASE,
            .end   = AT91RM9200_SRAM_BASE + AT91RM9200_SRAM_SIZE - 1,
            .flags = IORESOURCE_MEM,
      },
};

static struct platform_device at91_sram = {
      .name       = "mtd-ram",
      .id         = 0,
      .resource   = at91_sram_resource,
      .num_resources    = ARRAY_SIZE(at91_sram_resource),
      .dev  = {
            .platform_data = &at91_sram_pdata,
      },
};
#endif /* MTD_PLATRAM */

static struct platform_device *platform_devices[] __initdata = {
      &cpuat91_norflash,
#ifdef CONFIG_MTD_PLATRAM
      &at91_sram,
#endif /* CONFIG_MTD_PLATRAM */
};

static void __init cpuat91_board_init(void)
{
      /* Serial */
      at91_add_device_serial();
      /* LEDs. */
      at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));
      /* Ethernet */
      at91_add_device_eth(&cpuat91_eth_data);
      /* USB Host */
      at91_add_device_usbh(&cpuat91_usbh_data);
      /* USB Device */
      at91_add_device_udc(&cpuat91_udc_data);
      /* MMC */
      at91_add_device_mmc(0, &cpuat91_mmc_data);
      /* I2C */
      at91_add_device_i2c(NULL, 0);
      /* Platform devices */
      platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}

MACHINE_START(CPUAT91, "Eukrea")
      /* Maintainer: Eric Benard - EUKREA Electromatique */
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91rm9200_timer,
      .map_io           = cpuat91_map_io,
      .init_irq   = cpuat91_init_irq,
      .init_machine     = cpuat91_board_init,
MACHINE_END

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