u-boot/cpu/74xx_7xx/io.S

/*
 *  Copyright (C) 1998	Dan Malek <dmalek@jlc.net>
 *  Copyright (C) 1999	Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
 *  Copyright (C) 2001	Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 *			Andreas Heppel <aheppel@sysgo.de>
 *  Copyright (C) 2002	Wolfgang Denk <wd@denx.de>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <config.h>
#include <ppc_asm.tmpl>

/* ------------------------------------------------------------------------------- */
/*  Function:     in8 */
/*  Description:  Input 8 bits */
/* ------------------------------------------------------------------------------- */
	.globl  in8
in8:
	lbz     r3,0(r3)
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     in16 */
/*  Description:  Input 16 bits */
/* ------------------------------------------------------------------------------- */
	.globl  in16
in16:
	lhz     r3,0(r3)
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     in16r */
/*  Description:  Input 16 bits and byte reverse */
/* ------------------------------------------------------------------------------- */
	.globl  in16r
in16r:
	lhbrx   r3,0,r3
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     in32 */
/*  Description:  Input 32 bits */
/* ------------------------------------------------------------------------------- */
	.globl  in32
in32:
	lwz     3,0(3)
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     in32r */
/*  Description:  Input 32 bits and byte reverse */
/* ------------------------------------------------------------------------------- */
    .globl  in32r
in32r:
	lwbrx   r3,0,r3
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     out8 */
/*  Description:  Output 8 bits */
/* ------------------------------------------------------------------------------- */
	.globl  out8
out8:
	stb     r4,0(r3)
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     out16 */
/*  Description:  Output 16 bits */
/* ------------------------------------------------------------------------------- */
	.globl  out16
out16:
	sth     r4,0(r3)
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     out16r */
/*  Description:  Byte reverse and output 16 bits */
/* ------------------------------------------------------------------------------- */
	.globl  out16r
out16r:
	sthbrx  r4,0,r3
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     out32 */
/*  Description:  Output 32 bits */
/* ------------------------------------------------------------------------------- */
	.globl  out32
out32:
	stw     r4,0(r3)
	sync
	blr

/* ------------------------------------------------------------------------------- */
/*  Function:     out32r */
/*  Description:  Byte reverse and output 32 bits */
/* ------------------------------------------------------------------------------- */
	.globl  out32r
out32r:
	stwbrx  r4,0,r3
	sync
	blr