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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 MediaTek Inc.
* Author: Mingming Lee <mingming.lee@mediatek.com>
*/
/*
* Switch from AArch64 EL2 to AArch32 EL2
* @param inputs:
* x0: argument, zero
* x1: machine nr
* x2: fdt address
* x3: input argument
* x4: kernel entry point
* @param outputs for secure firmware:
* x0: function id
* x1: kernel entry point
* x2: machine nr
* x3: fdt address
*/
.global armv8_el2_to_aarch32
armv8_el2_to_aarch32:
mov x3, x2
mov x2, x1
mov x1, x4
mov x4, #0
/* Define in src\bsp\trustzone\atf\v1.2\ */
/* mt8xxx\plat\mediatek\common\sip_svc.h */
/* MTK_SIP_KERNEL_BOOT_AARCH64 for U-BOOT-64 to KERNEL*/
ldr x0, =0xC2000200
SMC #0
ret
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