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u-boot/board/qualcomm/dragonboard820c/head.S

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* ARM64 header for proper chain-loading with Little Kernel.
*
* Little Kernel shipped with Dragonboard820C boots standard Linux images for
* ARM64. This file adds header that is required to boot U-Boot properly.
*
* For details see:
* https://www.kernel.org/doc/Documentation/arm64/booting.txt
*
* (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
*/
#include <config.h>
/*
* per document in linux/Doc/arm64/booting.text
*/
.global _arm64_header
_arm64_header:
b _start
.word 0
.quad CONFIG_SYS_TEXT_BASE-PHYS_SDRAM_1 /* Image load offset, LE */
.quad 0 /* Effective size of kernel image, little-endian */
.quad 0 /* kernel flags, little-endian */
.quad 0 /* reserved */
.quad 0 /* reserved */
.quad 0 /* reserved */
.byte 0x41 /* Magic number, "ARM\x64" */
.byte 0x52
.byte 0x4d
.byte 0x64
.word 0 /* reserved (used for PE COFF offset) */