upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/arch/powerpc/cpu/74xx_7xx/io.S

112 lines
3.2 KiB

/*
* 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>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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