u-boot/arch/x86/cpu/start64.S

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * 64-bit x86 Startup Code
 *
 * (C) Copyright 216 Google, Inc
 * Written by Simon Glass <sjg@chromium.org>
 */

#include <config.h>

.section .text
.code64
.globl _start
.type _start, @function
_start:
	/* Set up memory using the existing stack */
	mov	%rsp, %rdi
	call	board_init_f_alloc_reserve
	mov	%rax, %rsp

	call	board_init_f_init_reserve

	call	board_init_f
	call	board_init_f_r

	/* Should not return here */
	jmp	.
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+ */`
x86: Add 64-bit start-up code Add code to start up U-Boot in 64-bit mode. It is fairly simple since we are running from RAM and SPL has done the low-level init. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> 2017-01-16 14:03:48 +00:00			`/*`
			`* 64-bit x86 Startup Code`
			`*`
			`* (C) Copyright 216 Google, Inc`
			`* Written by Simon Glass <sjg@chromium.org>`
			`*/`

			`#include <config.h>`

			`.section .text`
			`.code64`
			`.globl _start`
			`.type _start, @function`
			`_start:`
			`/* Set up memory using the existing stack */`
			`mov %rsp, %rdi`
			`call board_init_f_alloc_reserve`
			`mov %rax, %rsp`

			`call board_init_f_init_reserve`

			`call board_init_f`
			`call board_init_f_r`

			`/* Should not return here */`
			`jmp .`