mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
dca9220c35
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>
28 lines
469 B
ArmAsm
28 lines
469 B
ArmAsm
/*
|
|
* 64-bit x86 Startup Code
|
|
*
|
|
* (C) Copyright 216 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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 .
|