1/* SPDX-License-Identifier: GPL-2.0+
2 *
3 * (C) 2017 NXP
4 * (C) 2020 EPAM Systems Inc.
5 */
6
7#include <config.h>
8
9.align 8
10.global rom_pointer
11rom_pointer:
12	.space 32
13
14/*
15 * Routine: save_boot_params (called after reset from start.S)
16 */
17
18.global save_boot_params
19save_boot_params:
20	/* The firmware provided ATAG/FDT address can be found in r2/x0 */
21	adr	x1, rom_pointer
22	stp	x0, x2, [x1], #16
23	stp	x3, x4, [x1], #16
24
25	/* Returns */
26	b	save_boot_params_ret
27
28.global restore_boot_params
29restore_boot_params:
30	adr	x1, rom_pointer
31	ldp	x0, x2, [x1], #16
32	ldp	x3, x4, [x1], #16
33	ret
34