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Diffstat (limited to 'include/asm-arm/arch-mxc/memory.h')
| -rw-r--r-- | include/asm-arm/arch-mxc/memory.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/asm-arm/arch-mxc/memory.h b/include/asm-arm/arch-mxc/memory.h new file mode 100644 index 00000000000..c89aac83a40 --- /dev/null +++ b/include/asm-arm/arch-mxc/memory.h @@ -0,0 +1,36 @@ +/* + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * 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. + */ + +#ifndef __ASM_ARCH_MXC_MEMORY_H__ +#define __ASM_ARCH_MXC_MEMORY_H__ + +#include <asm/hardware.h> + +/*! + * @file memory.h + * @brief This file contains macros needed by the Linux kernel and drivers. + * + * @ingroup Memory + */ + +/*! + * Virtual view <-> DMA view memory address translations + * This macro is used to translate the virtual address to an address + * suitable to be passed to set_dma_addr() + */ +#define __virt_to_bus(a) __virt_to_phys(a) + +/*! + * Used to convert an address for DMA operations to an address that the + * kernel can use. + */ +#define __bus_to_virt(a) __phys_to_virt(a) + +#endif /* __ASM_ARCH_MXC_MEMORY_H__ */ |