/*
   * Virtual EISA root driver.
   * Acts as a placeholder if we don't have a proper EISA bridge.
   *
   * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org>
   * modified for SNI usage by Thomas Bogendoerfer
   *
   * This code is released under the GPL version 2.
   */
  
  #include <linux/kernel.h>
  #include <linux/platform_device.h>
  #include <linux/eisa.h>
  #include <linux/init.h>
  
  /* The default EISA device parent (virtual root device).
   * Now use a platform device, since that's the obvious choice. */
  
  static struct platform_device eisa_root_dev = {
  	.name = "eisa",
  	.id   = 0,
  };
  
  static struct eisa_root_device eisa_bus_root = {
  	.dev	       = &eisa_root_dev.dev,
  	.bus_base_addr = 0,
  	.res	       = &ioport_resource,
  	.slots	       = EISA_MAX_SLOTS,
  	.dma_mask      = 0xffffffff,
  	.force_probe   = 1,
  };
  
  int __init sni_eisa_root_init(void)
  {
  	int r;
  
  	r = platform_device_register(&eisa_root_dev);
  	if (!r)
  		return r;
  
  	dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root);
  
  	if (eisa_root_register(&eisa_bus_root)) {
  		/* A real bridge may have been registered before
  		 * us. So quietly unregister. */
  		platform_device_unregister(&eisa_root_dev);
  		return -1;
  	}
  	return 0;
  }