diff options
Diffstat (limited to 'include/asm-arm/arch-ebsa285/io.h')
-rw-r--r-- | include/asm-arm/arch-ebsa285/io.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ebsa285/io.h b/include/asm-arm/arch-ebsa285/io.h new file mode 100644 index 000000000000..70576b17f922 --- /dev/null +++ b/include/asm-arm/arch-ebsa285/io.h @@ -0,0 +1,45 @@ +/* + * linux/include/asm-arm/arch-ebsa285/io.h + * + * Copyright (C) 1997-1999 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 06-12-1997 RMK Created. + * 07-04-1999 RMK Major cleanup + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffff + +/* + * Translation of various region addresses to virtual addresses + */ +#define __io(a) ((void __iomem *)(PCIO_BASE + (a))) +#if 1 +#define __mem_pci(a) (a) +#define __mem_isa(a) ((a) + PCIMEM_BASE) +#else + +static inline void __iomem *___mem_pci(void __iomem *p) +{ + unsigned long a = (unsigned long)p; + BUG_ON(a <= 0xc0000000 || a >= 0xe0000000); + return p; +} + +static inline void __iomem *___mem_isa(void __iomem *p) +{ + unsigned long a = (unsigned long)p; + BUG_ON(a >= 16*1048576); + return p + PCIMEM_BASE; +} +#define __mem_pci(a) ___mem_pci(a) +#define __mem_isa(a) ___mem_isa(a) +#endif + +#endif |