[mirror_ubuntu-hirsute-kernel.git] / arch / arm / mach-rpc / include / mach / io.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  arch/arm/mach-rpc/include/mach/io.h
 *
 *  Copyright (C) 1997 Russell King
 *
 * Modifications:
 *  06-Dec-1997	RMK	Created.
 */
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H

#include <mach/hardware.h>

#define IO_SPACE_LIMIT 0xffff

/*
 * We need PC style IO addressing for:
 *  - floppy (at 0x3f2,0x3f4,0x3f5,0x3f7)
 *  - parport (at 0x278-0x27a, 0x27b-0x27f, 0x778-0x77a)
 *  - 8250 serial (only for compile)
 *
 * These peripherals are found in an area of MMIO which looks very much
 * like an ISA bus, but with registers at the low byte of each word.
 */
#define __io(a)		(PCIO_BASE + ((a) << 2))

#endif
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
1da177e4	2	/*
a09e64fb	3	* arch/arm/mach-rpc/include/mach/io.h
1da177e4 LT	4	*
	5	* Copyright (C) 1997 Russell King
	6	*
1da177e4 LT	7	* Modifications:
	8	* 06-Dec-1997 RMK Created.
	9	*/
	10	#ifndef __ASM_ARM_ARCH_IO_H
	11	#define __ASM_ARM_ARCH_IO_H
	12
a09e64fb	13	#include <mach/hardware.h>
7fca0aa4	14
0d26449d	15	#define IO_SPACE_LIMIT 0xffff
1da177e4	16
1da177e4	17	/*
0d26449d RK	18	* We need PC style IO addressing for:
	19	* - floppy (at 0x3f2,0x3f4,0x3f5,0x3f7)
	20	* - parport (at 0x278-0x27a, 0x27b-0x27f, 0x778-0x77a)
	21	* - 8250 serial (only for compile)
1da177e4	22	*
0d26449d RK	23	* These peripherals are found in an area of MMIO which looks very much
0d26449d RK	24	* like an ISA bus, but with registers at the low byte of each word.
1da177e4	25	*/
0d26449d	26	#define __io(a) (PCIO_BASE + ((a) << 2))
1da177e4	27
1da177e4	28	#endif