| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-ebsa285/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 IO_SPACE_LIMIT 0xffff |
| 18 | |
| 19 | /* |
| 20 | * Translation of various region addresses to virtual addresses |
| 21 | */ |
| 22 | #define __io(a) ((void __iomem *)(PCIO_BASE + (a))) |
| 23 | #if 1 |
| 24 | #define __mem_pci(a) (a) |
| 25 | #define __mem_isa(a) ((a) + PCIMEM_BASE) |
| 26 | #else |
| 27 | |
| 28 | static inline void __iomem *___mem_pci(void __iomem *p) |
| 29 | { |
| 30 | unsigned long a = (unsigned long)p; |
| 31 | BUG_ON(a <= 0xc0000000 || a >= 0xe0000000); |
| 32 | return p; |
| 33 | } |
| 34 | |
| 35 | static inline void __iomem *___mem_isa(void __iomem *p) |
| 36 | { |
| 37 | unsigned long a = (unsigned long)p; |
| 38 | BUG_ON(a >= 16*1048576); |
| 39 | return p + PCIMEM_BASE; |
| 40 | } |
| 41 | #define __mem_pci(a) ___mem_pci(a) |
| 42 | #define __mem_isa(a) ___mem_isa(a) |
| 43 | #endif |
| 44 | |
| 45 | #endif |