board-cpuat91.c

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/*
 * linux/arch/arm/mach-at91/board-cpuat91.c
 *
 *  Copyright (C) 2009 Eric Benard - [email protected]
 *
 * 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/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/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.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_init_early(void)
{
    /* Set cpu type: PQFP */
    at91rm9200_set_type(ARCH_REVISON_9200_PQFP);

    /* Initialize processor: 18.432 MHz crystal */
    at91_initialize(18432000);
}

static struct macb_platform_data __initdata cpuat91_eth_data = {
    .phy_irq_pin    = -EINVAL,
    .is_rmii    = 1,
};

static struct at91_usbh_data __initdata cpuat91_usbh_data = {
    .ports      = 1,
    .vbus_pin   = {-EINVAL, -EINVAL},
    .overcurrent_pin= {-EINVAL, -EINVAL},
};

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

static struct mci_platform_data __initdata cpuat91_mci0_data = {
    .slot[0] = {
        .bus_width  = 4,
        .detect_pin = AT91_PIN_PC2,
        .wp_pin     = -EINVAL,
    },
};

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 */
    /* 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);
    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_mci(0, &cpuat91_mci0_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 */
    .timer      = &at91rm9200_timer,
    .map_io     = at91_map_io,
    .handle_irq = at91_aic_handle_irq,
    .init_early = cpuat91_init_early,
    .init_irq   = at91_init_irq_default,
    .init_machine   = cpuat91_board_init,
MACHINE_END