u-boot/arch/arm/cpu/armv7/s5pc1xx/reset.S

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/*
* Copyright (c) 2009 Samsung Electronics.
* Minkyu Kang <mk7.kang@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm/arch/cpu.h>
#include <linux/linkage.h>
#define S5PC100_SWRESET 0xE0200000
#define S5PC110_SWRESET 0xE0102000
ENTRY(reset_cpu)
ldr r1, =S5PC100_PRO_ID
ldr r2, [r1]
ldr r4, =0x00010000
and r4, r2, r4
cmp r4, #0
bne 110f
/* S5PC100 */
ldr r1, =S5PC100_SWRESET
ldr r2, =0xC100
b 200f
110: /* S5PC110 */
ldr r1, =S5PC110_SWRESET
mov r2, #1
200:
str r2, [r1]
_loop_forever:
b _loop_forever
ENDPROC(reset_cpu)