u-boot/arch/arm/mach-mediatek/mt7623/lowlevel_init.S

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2018 MediaTek Inc.
*/
#include <linux/linkage.h>
.extern preloader_param
ENTRY(save_boot_params)
ldr r6, =preloader_param
str r4, [r6]
b save_boot_params_ret
ENDPROC(save_boot_params)
ENTRY(lowlevel_init)
/* enable SMP bit */
mrc p15, 0, r0, c1, c0, 1
orr r0, r0, #0x40
mcr p15, 0, r0, c1, c0, 1
mov pc, lr
ENDPROC(lowlevel_init)