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u-boot/arch/arm/include/asm/boot0-linux-kernel-header.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
ARMv8: add optional Linux kernel image header Allow placing a Linux kernel image header at the start of the U-Boot binary. This is useful since the image header reports the amount of memory (BSS and similar) that U-Boot needs to use, but that isn't part of the binary size. This can be used by the code that loads U-Boot into memory to determine where to load U-Boot, based on other users of memory. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-01-03 21:31:51 +00:00
/*
* (C) Copyright 2017 NVIDIA Corporation <www.nvidia.com>
*
* Derived from Linux kernel v4.14 files:
*
* arch/arm64/include/asm/assembler.h:
* Based on arch/arm/include/asm/assembler.h, arch/arm/mm/proc-macros.S
* Copyright (C) 1996-2000 Russell King
* Copyright (C) 2012 ARM Ltd.
*
* arch/arm64/kernel/head.S:
* Based on arch/arm/kernel/head.S
* Copyright (C) 1994-2002 Russell King
* Copyright (C) 2003-2012 ARM Ltd.
* Authors: Catalin Marinas <catalin.marinas@arm.com>
* Will Deacon <will.deacon@arm.com>
*
* arch/arm64/kernel/image.h:
* Copyright (C) 2014 ARM Ltd.
*/
/*
* Emit a 64-bit absolute little endian symbol reference in a way that
* ensures that it will be resolved at build time, even when building a
* PIE binary. This requires cooperation from the linker script, which
* must emit the lo32/hi32 halves individually.
*/
.macro le64sym, sym
.long \sym\()_lo32
.long \sym\()_hi32
.endm
.globl _start
_start:
/*
* DO NOT MODIFY. Image header expected by Linux boot-loaders.
*/
b reset /* branch to kernel start, magic */
.long 0 /* reserved */
le64sym _kernel_offset_le /* Image load offset from start of RAM, little-endian */
le64sym _kernel_size_le /* Effective size of kernel image, little-endian */
le64sym _kernel_flags_le /* Informative flags, little-endian */
.quad 0 /* reserved */
.quad 0 /* reserved */
.quad 0 /* reserved */
.ascii "ARM\x64" /* Magic number */
.long 0 /* reserved */
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