board-rsi-ews.c

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/*
 * board-rsi-ews.c
 *
 *  Copyright (C)
 *  2005 SAN People,
 *  2008-2011 R-S-I Elektrotechnik GmbH & Co. KG
 *
 * Licensed under GPLv2 or later.
 */

#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 <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 <linux/gpio.h>

#include "generic.h"

static void __init rsi_ews_init_early(void)
{
    /* Initialize processor: 18.432 MHz crystal */
    at91_initialize(18432000);
}

/*
 * Ethernet
 */
static struct macb_platform_data rsi_ews_eth_data __initdata = {
    .phy_irq_pin    = AT91_PIN_PC4,
    .is_rmii    = 1,
};

/*
 * USB Host
 */
static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
    .ports      = 1,
    .vbus_pin   = {-EINVAL, -EINVAL},
    .overcurrent_pin= {-EINVAL, -EINVAL},
};

/*
 * SD/MC
 */
static struct mci_platform_data __initdata rsi_ews_mci0_data = {
    .slot[0] = {
        .bus_width  = 4,
        .detect_pin = AT91_PIN_PB27,
        .wp_pin     = AT91_PIN_PB29,
    },
};

/*
 * I2C
 */
static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
    {
        I2C_BOARD_INFO("ds1337", 0x68),
    },
    {
        I2C_BOARD_INFO("24c01", 0x50),
    }
};

/*
 * LEDs
 */
static struct gpio_led rsi_ews_leds[] = {
    {
        .name           = "led0",
        .gpio           = AT91_PIN_PB6,
        .active_low     = 0,
    },
    {
        .name           = "led1",
        .gpio           = AT91_PIN_PB7,
        .active_low     = 0,
    },
    {
        .name           = "led2",
        .gpio           = AT91_PIN_PB8,
        .active_low     = 0,
    },
    {
        .name           = "led3",
        .gpio           = AT91_PIN_PB9,
        .active_low     = 0,
    },
};

/*
 * DataFlash
 */
static struct spi_board_info rsi_ews_spi_devices[] = {
    {   /* DataFlash chip 1*/
        .modalias   = "mtd_dataflash",
        .chip_select    = 0,
        .max_speed_hz   = 5 * 1000 * 1000,
    },
    {   /* DataFlash chip 2*/
        .modalias   = "mtd_dataflash",
        .chip_select    = 1,
        .max_speed_hz   = 5 * 1000 * 1000,
    },
};

/*
 * NOR flash
 */
static struct mtd_partition rsiews_nor_partitions[] = {
    {
        .name       = "boot",
        .offset     = 0,
        .size       = 3 * SZ_128K,
        .mask_flags = MTD_WRITEABLE
    },
    {
        .name       = "kernel",
        .offset     = MTDPART_OFS_NXTBLK,
        .size       = SZ_2M - (3 * SZ_128K)
    },
    {
        .name       = "root",
        .offset     = MTDPART_OFS_NXTBLK,
        .size       = SZ_8M
    },
    {
        .name       = "kernelupd",
        .offset     = MTDPART_OFS_NXTBLK,
        .size       = 3 * SZ_512K,
        .mask_flags = MTD_WRITEABLE
    },
    {
        .name       = "rootupd",
        .offset     = MTDPART_OFS_NXTBLK,
        .size       = 9 * SZ_512K,
        .mask_flags = MTD_WRITEABLE
    },
};

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

#define NOR_BASE    AT91_CHIPSELECT_0
#define NOR_SIZE    SZ_16M

static struct resource nor_flash_resources[] = {
    {
        .start  = NOR_BASE,
        .end    = NOR_BASE + NOR_SIZE - 1,
        .flags  = IORESOURCE_MEM,
    }
};

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

/*
 * Init Func
 */
static void __init rsi_ews_board_init(void)
{
    /* Serial */
    /* DBGU on ttyS0. (Rx & Tx only) */
    /* This one is for debugging */
    at91_register_uart(0, 0, 0);

    /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
    /* Dialin/-out modem interface */
    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);

    /* USART3 on ttyS4. (Rx, Tx, RTS) */
    /* RS485 communication */
    at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
    at91_add_device_serial();
    at91_set_gpio_output(AT91_PIN_PA21, 0);
    /* Ethernet */
    at91_add_device_eth(&rsi_ews_eth_data);
    /* USB Host */
    at91_add_device_usbh(&rsi_ews_usbh_data);
    /* I2C */
    at91_add_device_i2c(rsi_ews_i2c_devices,
            ARRAY_SIZE(rsi_ews_i2c_devices));
    /* SPI */
    at91_add_device_spi(rsi_ews_spi_devices,
            ARRAY_SIZE(rsi_ews_spi_devices));
    /* MMC */
    at91_add_device_mci(0, &rsi_ews_mci0_data);
    /* NOR Flash */
    platform_device_register(&rsiews_nor_flash);
    /* LEDs */
    at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
}

MACHINE_START(RSI_EWS, "RSI EWS")
    /* Maintainer: Josef Holzmayr <[email protected]> */
    .timer      = &at91rm9200_timer,
    .map_io     = at91_map_io,
    .handle_irq = at91_aic_handle_irq,
    .init_early = rsi_ews_init_early,
    .init_irq   = at91_init_irq_default,
    .init_machine   = rsi_ews_board_init,
MACHINE_END