*** uhci.c.orig	2003-06-13 23:51:36.000000000 +0900
--- uhci.c	2006-12-21 18:51:54.000000000 +0900
***************
*** 2642,2647 ****
--- 2642,2666 ----
  	free_uhci(uhci);
  }
  
+ // XXX
+ #define	MAX_DISABLE_UHCI	16
+ static unsigned int disable_uhci[MAX_DISABLE_UHCI] = {0};
+ MODULE_PARM(disable_uhci, "0-" __MODULE_STRING(MAX_DISABLE_UHCI) "i");
+ MODULE_PARM_DESC(disable_uhci, "I/O address to disable UHCI");
+ 
+ static unsigned int is_disable_uhci(unsigned int io_addr)
+ {
+ 	int i;
+ 
+ 	for (i = 0; i < MAX_DISABLE_UHCI; i++) {
+ 		if (disable_uhci[i] &&
+ 		    disable_uhci[i] == io_addr) return 1;
+ 	}
+ 
+ 	return 0;
+ }
+ // XXX
+ 
  /*
   * Allocate a frame list, and then setup the skeleton
   *
***************
*** 2671,2676 ****
--- 2690,2701 ----
  #endif
  
  	retval = -ENODEV;
+ // XXX
+ 	if (is_disable_uhci(io_addr)) {
+ 		err("this UHCI (at I/O 0x%x) is disabled", io_addr);
+ 		goto err_enable_device;
+ 	}
+ // XXX
  	if (pci_enable_device(dev) < 0) {
  		err("couldn't enable PCI device");
  		goto err_enable_device;