mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
819833af39
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>
43 lines
855 B
C
43 lines
855 B
C
#ifndef _I386_BYTEORDER_H
|
|
#define _I386_BYTEORDER_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
#ifdef __GNUC__
|
|
|
|
|
|
static __inline__ __u32 ___arch__swab32(__u32 x)
|
|
{
|
|
#ifdef CONFIG_X86_BSWAP
|
|
__asm__("bswap %0" : "=r" (x) : "0" (x));
|
|
#else
|
|
__asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
|
|
"rorl $16,%0\n\t" /* swap words */
|
|
"xchgb %b0,%h0" /* swap higher bytes */
|
|
:"=q" (x)
|
|
: "0" (x));
|
|
#endif
|
|
return x;
|
|
}
|
|
|
|
static __inline__ __u16 ___arch__swab16(__u16 x)
|
|
{
|
|
__asm__("xchgb %b0,%h0" /* swap bytes */ \
|
|
: "=q" (x) \
|
|
: "0" (x)); \
|
|
return x;
|
|
}
|
|
|
|
#define __arch__swab32(x) ___arch__swab32(x)
|
|
#define __arch__swab16(x) ___arch__swab16(x)
|
|
|
|
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
|
|
# define __BYTEORDER_HAS_U64__
|
|
# define __SWAB_64_THRU_32__
|
|
#endif
|
|
|
|
#endif /* __GNUC__ */
|
|
|
|
#include <linux/byteorder/little_endian.h>
|
|
|
|
#endif /* _I386_BYTEORDER_H */
|