[mirror_ubuntu-jammy-kernel.git] / arch / x86 / kernel / eisa.c

// 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);
Commit	Line	Data
82c73e0a	1	// SPDX-License-Identifier: GPL-2.0-only
f7eaf6e0 TG	2	/*
f7eaf6e0 TG	3	* EISA specific code
f7eaf6e0 TG	4	*/
	5	#include <linux/ioport.h>
	6	#include <linux/eisa.h>
ef1d4dea	7	#include <linux/io.h>
f7eaf6e0	8
6a92b111 BO	9	#include <xen/xen.h>
6a92b111 BO	10
f7eaf6e0 TG	11	static __init int eisa_bus_probe(void)
f7eaf6e0 TG	12	{
6a92b111 BO	13	void __iomem *p;
	14
	15	if (xen_pv_domain() && !xen_initial_domain())
	16	return 0;
f7eaf6e0	17
6a92b111 BO	18	p = ioremap(0x0FFFD9, 4);
6a92b111 BO	19	if (p && readl(p) == 'E' + ('I' << 8) + ('S' << 16) + ('A' << 24))
f7eaf6e0 TG	20	EISA_bus = 1;
	21	iounmap(p);
	22	return 0;
	23	}
	24	subsys_initcall(eisa_bus_probe);