mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 22:33:18 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
|
|
* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
|
|
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _M68K_BYTEORDER_H
|
|
#define _M68K_BYTEORDER_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
#ifdef __GNUC__
|
|
#define __sw16(x) \
|
|
((__u16)( \
|
|
(((__u16)(x) & (__u16)0x00ffU) << 8) | \
|
|
(((__u16)(x) & (__u16)0xff00U) >> 8) ))
|
|
#define __sw32(x) \
|
|
((__u32)( \
|
|
(((__u32)(x)) << 24) | \
|
|
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
|
|
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
|
|
(((__u32)(x)) >> 24) ))
|
|
|
|
extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
|
|
{
|
|
unsigned result = *addr;
|
|
return __sw16(result);
|
|
}
|
|
|
|
extern __inline__ void st_le16(volatile unsigned short *addr,
|
|
const unsigned val)
|
|
{
|
|
*addr = __sw16(val);
|
|
}
|
|
|
|
extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
|
|
{
|
|
unsigned result = *addr;
|
|
return __sw32(result);
|
|
}
|
|
|
|
extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
|
|
{
|
|
*addr = __sw32(val);
|
|
}
|
|
|
|
#if 0
|
|
/* alas, egcs sounds like it has a bug in this code that doesn't use the
|
|
inline asm correctly, and can cause file corruption. Until I hear that
|
|
it's fixed, I can live without the extra speed. I hope. */
|
|
#if !(__GNUC__ >= 2 && __GNUC_MINOR__ >= 90)
|
|
#if 0
|
|
# define __arch_swab16(x) ld_le16(&x)
|
|
# define __arch_swab32(x) ld_le32(&x)
|
|
#else
|
|
static __inline__ __attribute__ ((const))
|
|
__u16 ___arch__swab16(__u16 value)
|
|
{
|
|
return __sw16(value);
|
|
}
|
|
|
|
static __inline__ __attribute__ ((const))
|
|
__u32 ___arch__swab32(__u32 value)
|
|
{
|
|
return __sw32(value);
|
|
}
|
|
|
|
#define __arch__swab32(x) ___arch__swab32(x)
|
|
#define __arch__swab16(x) ___arch__swab16(x)
|
|
#endif /* 0 */
|
|
|
|
#endif
|
|
|
|
/* The same, but returns converted value from the location pointer by addr. */
|
|
#define __arch__swab16p(addr) ld_le16(addr)
|
|
#define __arch__swab32p(addr) ld_le32(addr)
|
|
|
|
/* The same, but do the conversion in situ, ie. put the value back to addr. */
|
|
#define __arch__swab16s(addr) st_le16(addr,*addr)
|
|
#define __arch__swab32s(addr) st_le32(addr,*addr)
|
|
#endif
|
|
|
|
#endif /* __GNUC__ */
|
|
|
|
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
|
|
#define __BYTEORDER_HAS_U64__
|
|
#endif
|
|
#include <linux/byteorder/big_endian.h>
|
|
|
|
#endif /* _M68K_BYTEORDER_H */
|