u-boot/arch/mips/include/asm/byteorder.h
Peter Tyser 819833af39 Move architecture-specific includes to arch/$ARCH/include/asm
This helps to clean up the include/ directory so that it only contains
non-architecture-specific headers and also matches Linux's directory
layout which many U-Boot developers are already familiar with.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:12 +02:00

75 lines
1.4 KiB
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1996, 99, 2003 by Ralf Baechle
*/
#ifndef _ASM_BYTEORDER_H
#define _ASM_BYTEORDER_H
#include <asm/types.h>
#ifdef __GNUC__
#ifdef CONFIG_CPU_MIPSR2
static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
{
__asm__(
" wsbh %0, %1 \n"
: "=r" (x)
: "r" (x));
return x;
}
#define __arch__swab16(x) ___arch__swab16(x)
static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
{
__asm__(
" wsbh %0, %1 \n"
" rotr %0, %0, 16 \n"
: "=r" (x)
: "r" (x));
return x;
}
#define __arch__swab32(x) ___arch__swab32(x)
#ifdef CONFIG_CPU_MIPS64_R2
static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
{
__asm__(
" dsbh %0, %1 \n"
" dshd %0, %0 \n"
" drotr %0, %0, 32 \n"
: "=r" (x)
: "r" (x));
return x;
}
#define __arch__swab64(x) ___arch__swab64(x)
#endif /* CONFIG_CPU_MIPS64_R2 */
#endif /* CONFIG_CPU_MIPSR2 */
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif
#endif /* __GNUC__ */
#if defined(__MIPSEB__)
# include <linux/byteorder/big_endian.h>
#elif defined(__MIPSEL__)
# include <linux/byteorder/little_endian.h>
#else
# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
#endif
#endif /* _ASM_BYTEORDER_H */