mirror of
https://github.com/brain-hackers/u-boot-brain
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34 lines
577 B
ArmAsm
34 lines
577 B
ArmAsm
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/* SPDX-License-Identifier: GPL-2.0+
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*
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* (C) 2017 NXP
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* (C) 2020 EPAM Systems Inc.
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*/
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#include <config.h>
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.align 8
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.global rom_pointer
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rom_pointer:
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.space 32
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/*
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* Routine: save_boot_params (called after reset from start.S)
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*/
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.global save_boot_params
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save_boot_params:
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/* The firmware provided ATAG/FDT address can be found in r2/x0 */
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adr x1, rom_pointer
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stp x0, x2, [x1], #16
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stp x3, x4, [x1], #16
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/* Returns */
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b save_boot_params_ret
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.global restore_boot_params
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restore_boot_params:
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adr x1, rom_pointer
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ldp x0, x2, [x1], #16
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ldp x3, x4, [x1], #16
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ret
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