linux/arch/x86/kernel/eisa.c

26 lines
459 B
C

/*
* EISA specific code
*
* This file is licensed under the GPL V2
*/
#include <linux/ioport.h>
#include <linux/eisa.h>
#include <linux/io.h>
#include <xen/xen.h>
static __init int eisa_bus_probe(void)
{
void __iomem *p;
if (xen_pv_domain() && !xen_initial_domain())
return 0;
p = ioremap(0x0FFFD9, 4);
if (p && readl(p) == 'E' + ('I' << 8) + ('S' << 16) + ('A' << 24))
EISA_bus = 1;
iounmap(p);
return 0;
}
subsys_initcall(eisa_bus_probe);