2 * linux/include/asm-arm/arch-ebsa285/io.h
4 * Copyright (C) 1997-1999 Russell King
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 * 06-12-1997 RMK Created.
12 * 07-04-1999 RMK Major cleanup
14 #ifndef __ASM_ARM_ARCH_IO_H
15 #define __ASM_ARM_ARCH_IO_H
17 #define IO_SPACE_LIMIT 0xffff
20 * Translation of various region addresses to virtual addresses
22 #define __io(a) (PCIO_BASE + (a))
24 #define __mem_pci(a) ((unsigned long)(a))
25 #define __mem_isa(a) (PCIMEM_BASE + (unsigned long)(a))
28 static inline unsigned long ___mem_pci(unsigned long a)
30 BUG_ON(a <= 0xc0000000 || a >= 0xe0000000);
34 static inline unsigned long ___mem_isa(unsigned long a)
36 BUG_ON(a >= 16*1048576);
37 return PCIMEM_BASE + a;
39 #define __mem_pci(a) ___mem_pci((unsigned long)(a))
40 #define __mem_isa(a) ___mem_isa((unsigned long)(a))