/* 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