1 /* 2 * linux/include/asm-arm/arch-sa1100/io.h 3 * 4 * Copyright (C) 1997-1999 Russell King 5 * 6 * Modifications: 7 * 06-12-1997 RMK Created. 8 * 07-04-1999 RMK Major cleanup 9 */ 10 #ifndef __ASM_ARM_ARCH_IO_H 11 #define __ASM_ARM_ARCH_IO_H 12 13 #define IO_SPACE_LIMIT 0xffffffff 14 15 /* 16 * We don't actually have real ISA nor PCI buses, but there is so many 17 * drivers out there that might just work if we fake them... 18 */ 19 #define __io(a) (PCIO_BASE + (a)) 20 #define __mem_pci(a) ((unsigned long)(a)) 21 #define __mem_isa(a) ((unsigned long)(a)) 22 23 /* 24 * Generic virtual read/write 25 */ 26 #define __arch_getw(a) (*(volatile unsigned short *)(a)) 27 #define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v)) 28 29 #define iomem_valid_addr(iomem,sz) (1) 30 #define iomem_to_phys(iomem) (iomem) 31 32 #endif 33