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Diffstat (limited to 'arch/arm/mach-ixp2000/include/mach/memory.h')
| -rw-r--r-- | arch/arm/mach-ixp2000/include/mach/memory.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp2000/include/mach/memory.h b/arch/arm/mach-ixp2000/include/mach/memory.h new file mode 100644 index 00000000..5f0c4fd4 --- /dev/null +++ b/arch/arm/mach-ixp2000/include/mach/memory.h @@ -0,0 +1,31 @@ +/* + * arch/arm/mach-ixp2000/include/mach/memory.h + * + * Copyright (c) 2002 Intel Corp. + * Copyright (c) 2003-2004 MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#define PLAT_PHYS_OFFSET UL(0x00000000) + +#include <mach/ixp2000-regs.h> + +#define IXP2000_PCI_SDRAM_OFFSET (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0) + +#define __phys_to_bus(x) ((x) + (IXP2000_PCI_SDRAM_OFFSET - PHYS_OFFSET)) +#define __bus_to_phys(x) ((x) - (IXP2000_PCI_SDRAM_OFFSET - PHYS_OFFSET)) + +#define __virt_to_bus(v) __phys_to_bus(__virt_to_phys(v)) +#define __bus_to_virt(b) __phys_to_virt(__bus_to_phys(b)) +#define __pfn_to_bus(p) __phys_to_bus(__pfn_to_phys(p)) +#define __bus_to_pfn(b) __phys_to_pfn(__bus_to_phys(b)) + +#endif + |