/*
 * 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 <linux/gpio.h>

#include "at91_aic.h"
#include "board.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 <holzmayr@rsi-elektrotechnik.de> */
        .init_time      = at91rm9200_timer_init,
        .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