board-dsm320.c

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/*
 * arch/arm/mach-ks8695/board-dsm320.c
 *
 * DSM-320 D-Link Wireless Media Player, board support.
 *
 * Copyright 2008 Simtec Electronics
 *        Daniel Silverstone <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/platform_device.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>

#include <asm/mach-types.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/devices.h>
#include <mach/gpio-ks8695.h>

#include "generic.h"

#ifdef CONFIG_PCI
static int dsm320_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
    switch (slot) {
    case 0:
        /* PCI-AHB bridge? */
        return KS8695_IRQ_EXTERN0;
    case 18:
        /* Mini PCI slot */
        return KS8695_IRQ_EXTERN2;
    case 20:
        /* RealMAGIC chip */
        return KS8695_IRQ_EXTERN0;
    }
    BUG();
}

static struct ks8695_pci_cfg __initdata dsm320_pci = {
    .mode       = KS8695_MODE_MINIPCI,
    .map_irq    = dsm320_pci_map_irq,
};

static void __init dsm320_register_pci(void)
{
    /* Initialise the GPIO lines for interrupt mode */
    /* RealMAGIC */
    ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW);
    /* MiniPCI Slot */
    ks8695_gpio_interrupt(KS8695_GPIO_2, IRQ_TYPE_LEVEL_LOW);

    ks8695_init_pci(&dsm320_pci);
}

#else
static inline void __init dsm320_register_pci(void) { }
#endif

static struct physmap_flash_data dsm320_nor_pdata = {
    .width      = 4,
    .nr_parts   = 0,
};

static struct resource dsm320_nor_resource[] = {
    [0] = {
        .start = SZ_32M, /* We expect the bootloader to map
                  * the flash here.
                  */
        .end   = SZ_32M + SZ_4M - 1,
        .flags = IORESOURCE_MEM,
    }
};

static struct platform_device dsm320_device_nor = {
    .name       = "physmap-flash",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(dsm320_nor_resource),
    .resource   = dsm320_nor_resource,
    .dev        = {
        .platform_data = &dsm320_nor_pdata,
    },
};

void __init dsm320_register_nor(void)
{
    int ret;

    ret = platform_device_register(&dsm320_device_nor);
    if (ret < 0)
        printk(KERN_ERR "failed to register physmap-flash device\n");
}

static void __init dsm320_init(void)
{
    /* GPIO registration */
    ks8695_register_gpios();

    /* PCI registration */
    dsm320_register_pci();

    /* Network device */
    ks8695_add_device_lan();    /* eth0 = LAN */

    /* NOR devices */
    dsm320_register_nor();
}

MACHINE_START(DSM320, "D-Link DSM-320 Wireless Media Player")
    /* Maintainer: Simtec Electronics. */
    .atag_offset    = 0x100,
    .map_io     = ks8695_map_io,
    .init_irq   = ks8695_init_irq,
    .init_machine   = dsm320_init,
    .timer      = &ks8695_timer,
    .restart    = ks8695_restart,
MACHINE_END