1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * ARM64 header for proper chain-loading with Little Kernel. 4 * 5 * Little Kernel shipped with Dragonboard820C boots standard Linux images for 6 * ARM64. This file adds header that is required to boot U-Boot properly. 7 * 8 * For details see: 9 * https://www.kernel.org/doc/Documentation/arm64/booting.txt 10 * 11 * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com> 12 */ 13 14#include <config.h> 15 16/* 17 * per document in linux/Doc/arm64/booting.text 18 */ 19.global _arm64_header 20_arm64_header: 21 b _start 22 .word 0 23 .quad CONFIG_SYS_TEXT_BASE-PHYS_SDRAM_1 /* Image load offset, LE */ 24 .quad 0 /* Effective size of kernel image, little-endian */ 25 .quad 0 /* kernel flags, little-endian */ 26 .quad 0 /* reserved */ 27 .quad 0 /* reserved */ 28 .quad 0 /* reserved */ 29 .byte 0x41 /* Magic number, "ARM\x64" */ 30 .byte 0x52 31 .byte 0x4d 32 .byte 0x64 33 .word 0 /* reserved (used for PE COFF offset) */ 34