u-boot/arch/arm/mach-tegra/lowlevel_init.S

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/*
* SoC-specific setup info
*
* (C) Copyright 2010,2011
* NVIDIA Corporation <www.nvidia.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <linux/linkage.h>
.align 5
ENTRY(reset_cpu)
ldr r1, rstctl @ get addr for global reset
@ reg
ldr r3, [r1]
orr r3, r3, #0x10
str r3, [r1] @ force reset
mov r0, r0
_loop_forever:
b _loop_forever
rstctl:
.word PRM_RSTCTRL
ENDPROC(reset_cpu)