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board-dsm320.c

/*
 * arch/arm/mach-ks8695/board-dsm320.c
 *
 * DSM-320 D-Link Wireless Media Player, board support.
 *
 * Copyright 2008 Simtec Electronics
 *            Daniel Silverstone <dsilvers@simtec.co.uk>
 *
 * 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/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.h>

#include "generic.h"

#ifdef CONFIG_PCI
static int dsm320_pci_map_irq(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. */
      .boot_params      = KS8695_SDRAM_PA + 0x100,
      .map_io           = ks8695_map_io,
      .init_irq   = ks8695_init_irq,
      .init_machine     = dsm320_init,
      .timer            = &ks8695_timer,
MACHINE_END

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