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| author | Macpaul Lin <macpaul@andestech.com> | 2011-10-11 22:33:15 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-10-22 00:51:37 +0200 |
| commit | 00f892fcc9726b8b299c1da2383fc9bf4a3618c5 (patch) | |
| tree | 92062ed81c38fab9863705477df899d9e1072d2b /arch/nds32/include/asm/byteorder.h | |
| parent | 0c277ef9f92b41b41a78682330b6c35673a1819b (diff) | |
| download | blackbird-obmc-uboot-00f892fcc9726b8b299c1da2383fc9bf4a3618c5.tar.gz blackbird-obmc-uboot-00f892fcc9726b8b299c1da2383fc9bf4a3618c5.zip | |
nds32: add header files support for nds32
Add generic header files support for nds32 architecture.
Cache, ptregs, data type and other definitions are included.
Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Diffstat (limited to 'arch/nds32/include/asm/byteorder.h')
| -rw-r--r-- | arch/nds32/include/asm/byteorder.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/byteorder.h b/arch/nds32/include/asm/byteorder.h new file mode 100644 index 0000000000..39fd9eddf0 --- /dev/null +++ b/arch/nds32/include/asm/byteorder.h @@ -0,0 +1,36 @@ +/* + * linux/include/asm-arm/byteorder.h + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com> + * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> + * + * ARM Endian-ness. In little endian mode, the data bus is connected such + * that byte accesses appear as: + * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 + * and word accesses (data or instruction) appear as: + * d0...d31 + * + * When in big endian mode, byte accesses appear as: + * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7 + * and word accesses (data or instruction) appear as: + * d0...d31 + */ + +#ifndef __ASM_NDS_BYTEORDER_H +#define __ASM_NDS_BYTEORDER_H + +#include <asm/types.h> + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + +#ifdef __NDSEB__ +#include <linux/byteorder/big_endian.h> +#else +#include <linux/byteorder/little_endian.h> +#endif + +#endif |
