LXR linux/arch/mips/sni/eisa.c

   1/*
   2 * Virtual EISA root driver.
   3 * Acts as a placeholder if we don't have a proper EISA bridge.
   4 *
   5 * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org>
   6 * modified for SNI usage by Thomas Bogendoerfer
   7 *
   8 * This code is released under the GPL version 2.
   9 */
  10
  11#include <linux/kernel.h>
  12#include <linux/platform_device.h>
  13#include <linux/eisa.h>
  14#include <linux/init.h>
  15
  16/* The default EISA device parent (virtual root device).
  17 * Now use a platform device, since that's the obvious choice. */
  18
  19static struct platform_device eisa_root_dev = {
  20        .name = "eisa",
  21        .id   = 0,
  22};
  23
  24static struct eisa_root_device eisa_bus_root = {
  25        .dev           = &eisa_root_dev.dev,
  26        .bus_base_addr = 0,
  27        .res           = &ioport_resource,
  28        .slots         = EISA_MAX_SLOTS,
  29        .dma_mask      = 0xffffffff,
  30        .force_probe   = 1,
  31};
  32
  33int __init sni_eisa_root_init(void)
  34{
  35        int r;
  36
  37        r = platform_device_register(&eisa_root_dev);
  38        if (!r)
  39                return r;
  40
  41        dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root);
  42
  43        if (eisa_root_register(&eisa_bus_root)) {
  44                /* A real bridge may have been registered before
  45                 * us. So quietly unregister. */
  46                platform_device_unregister(&eisa_root_dev);
  47                return -1;
  48        }
  49        return 0;
  50}
  51