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/* 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
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