| // SPDX-License-Identifier: GPL-2.0-only | |
| /* | |
| * EISA specific code | |
| */ | |
| #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); |