mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
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* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
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*/
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#ifndef _M68K_BYTEORDER_H
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#define _M68K_BYTEORDER_H
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#include <asm/types.h>
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#ifdef __GNUC__
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#define __sw16(x) \
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((__u16)( \
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(((__u16)(x) & (__u16)0x00ffU) << 8) | \
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(((__u16)(x) & (__u16)0xff00U) >> 8) ))
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#define __sw32(x) \
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((__u32)( \
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(((__u32)(x)) << 24) | \
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(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
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(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
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(((__u32)(x)) >> 24) ))
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static __inline__ unsigned ld_le16(const volatile unsigned short *addr)
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{
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unsigned result = *addr;
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return __sw16(result);
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}
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static __inline__ void st_le16(volatile unsigned short *addr,
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const unsigned val)
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{
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*addr = __sw16(val);
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}
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static __inline__ unsigned ld_le32(const volatile unsigned *addr)
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{
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unsigned result = *addr;
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return __sw32(result);
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}
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static __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
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{
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*addr = __sw32(val);
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}
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#if 0
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/* alas, egcs sounds like it has a bug in this code that doesn't use the
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inline asm correctly, and can cause file corruption. Until I hear that
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it's fixed, I can live without the extra speed. I hope. */
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#if !(__GNUC__ >= 2 && __GNUC_MINOR__ >= 90)
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#if 0
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# define __arch_swab16(x) ld_le16(&x)
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# define __arch_swab32(x) ld_le32(&x)
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#else
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static __inline__ __attribute__ ((const))
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__u16 ___arch__swab16(__u16 value)
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{
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return __sw16(value);
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}
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static __inline__ __attribute__ ((const))
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__u32 ___arch__swab32(__u32 value)
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{
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return __sw32(value);
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}
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#define __arch__swab32(x) ___arch__swab32(x)
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#define __arch__swab16(x) ___arch__swab16(x)
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#endif /* 0 */
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#endif
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/* The same, but returns converted value from the location pointer by addr. */
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#define __arch__swab16p(addr) ld_le16(addr)
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#define __arch__swab32p(addr) ld_le32(addr)
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/* The same, but do the conversion in situ, ie. put the value back to addr. */
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#define __arch__swab16s(addr) st_le16(addr,*addr)
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#define __arch__swab32s(addr) st_le32(addr,*addr)
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#endif
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#endif /* __GNUC__ */
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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#define __BYTEORDER_HAS_U64__
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#endif
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#include <linux/byteorder/big_endian.h>
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#endif /* _M68K_BYTEORDER_H */
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