1 /* 2 * arch/arm/mach-footbridge/include/mach/io.h 3 * 4 * Copyright (C) 1997-1999 Russell King 5 * 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. 9 * 10 * Modifications: 11 * 06-12-1997 RMK Created. 12 * 07-04-1999 RMK Major cleanup 13 */ 14 #ifndef __ASM_ARM_ARCH_IO_H 15 #define __ASM_ARM_ARCH_IO_H 16 17 #define PCIO_SIZE 0x00100000 18 #define PCIO_BASE 0xff000000 19 20 #define IO_SPACE_LIMIT 0xffff 21 22 /* 23 * Translation of various region addresses to virtual addresses 24 */ 25 #define __io(a) ((void __iomem *)(PCIO_BASE + (a))) 26 #if 1 27 #define __mem_pci(a) (a) 28 #else 29 ___mem_pci(void __iomem * p)30static inline void __iomem *___mem_pci(void __iomem *p) 31 { 32 unsigned long a = (unsigned long)p; 33 BUG_ON(a <= 0xc0000000 || a >= 0xe0000000); 34 return p; 35 } 36 37 #define __mem_pci(a) ___mem_pci(a) 38 #endif 39 40 #endif 41