u-boot/include/linux/bitrev.h

/*
 * SPDX-License-Identifier:	GPL-2.0+
 *
 * Based on bitrev from the Linux kernel, by Akinobu Mita
 */

#ifndef _LINUX_BITREV_H
#define _LINUX_BITREV_H

#include <linux/types.h>

extern u8 const byte_rev_table[256];

static inline u8 bitrev8(u8 byte)
{
	return byte_rev_table[byte];
}

u16 bitrev16(u16 in);
u32 bitrev32(u32 in);

#endif /* _LINUX_BITREV_H */
lib: import bitrev library from the linux kernel This patch adds the bitrev library from the linux kernel. This is a simple algorithm that uses an 8 bit look-up table to reverse the bits in data types of 8, 16, or 32 bit widths. The docg4 nand flash driver uses it. [port from linux kernel v3.9 commit 7ee32a6d30d1c8a3b7a07a6269da8f0a08662927] [originally added: v2.6.20 by commit a5cfc1ec58a07074dacb6aa8c79eff864c966d12] Signed-off-by: Mike Dunn <mikedunn@newsguy.com> 2013-04-12 18:59:17 +00:00			`/*`
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> 2013-07-08 07:37:19 +00:00			`* SPDX-License-Identifier: GPL-2.0+`
lib: import bitrev library from the linux kernel This patch adds the bitrev library from the linux kernel. This is a simple algorithm that uses an 8 bit look-up table to reverse the bits in data types of 8, 16, or 32 bit widths. The docg4 nand flash driver uses it. [port from linux kernel v3.9 commit 7ee32a6d30d1c8a3b7a07a6269da8f0a08662927] [originally added: v2.6.20 by commit a5cfc1ec58a07074dacb6aa8c79eff864c966d12] Signed-off-by: Mike Dunn <mikedunn@newsguy.com> 2013-04-12 18:59:17 +00:00			`*`
			`* Based on bitrev from the Linux kernel, by Akinobu Mita`
			`*/`

			`#ifndef _LINUX_BITREV_H`
			`#define _LINUX_BITREV_H`

			`#include <linux/types.h>`

			`extern u8 const byte_rev_table[256];`

			`static inline u8 bitrev8(u8 byte)`
			`{`
			`return byte_rev_table[byte];`
			`}`

			`u16 bitrev16(u16 in);`
			`u32 bitrev32(u32 in);`

			`#endif /* _LINUX_BITREV_H */`