mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 02:33:07 +00:00
4557f43a10
The minimum alignment is 16 bytes, so use align 4 is enough. Signed-off-by: Peng Fan <peng.fan@nxp.com>
74 lines
1.4 KiB
ArmAsm
74 lines
1.4 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright 2017 NXP
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
.align 4
|
|
.global rom_pointer
|
|
rom_pointer:
|
|
.space 256
|
|
|
|
/*
|
|
* Routine: save_boot_params (called after reset from start.S)
|
|
*/
|
|
|
|
.global save_boot_params
|
|
save_boot_params:
|
|
/* The firmware provided ATAG/FDT address can be found in r2/x0 */
|
|
adr x0, rom_pointer
|
|
stp x1, x2, [x0], #16
|
|
stp x3, x4, [x0], #16
|
|
stp x5, x6, [x0], #16
|
|
stp x7, x8, [x0], #16
|
|
stp x9, x10, [x0], #16
|
|
stp x11, x12, [x0], #16
|
|
stp x13, x14, [x0], #16
|
|
stp x15, x16, [x0], #16
|
|
stp x17, x18, [x0], #16
|
|
stp x19, x20, [x0], #16
|
|
stp x21, x22, [x0], #16
|
|
stp x23, x24, [x0], #16
|
|
stp x25, x26, [x0], #16
|
|
stp x27, x28, [x0], #16
|
|
stp x29, x30, [x0], #16
|
|
mov x30, sp
|
|
str x30, [x0], #8
|
|
|
|
/* Returns */
|
|
b save_boot_params_ret
|
|
|
|
.global restore_boot_params
|
|
restore_boot_params:
|
|
adr x0, rom_pointer
|
|
ldp x1, x2, [x0], #16
|
|
ldp x3, x4, [x0], #16
|
|
ldp x5, x6, [x0], #16
|
|
ldp x7, x8, [x0], #16
|
|
ldp x9, x10, [x0], #16
|
|
ldp x11, x12, [x0], #16
|
|
ldp x13, x14, [x0], #16
|
|
ldp x15, x16, [x0], #16
|
|
ldp x17, x18, [x0], #16
|
|
ldp x19, x20, [x0], #16
|
|
ldp x21, x22, [x0], #16
|
|
ldp x23, x24, [x0], #16
|
|
ldp x25, x26, [x0], #16
|
|
ldp x27, x28, [x0], #16
|
|
ldp x29, x30, [x0], #16
|
|
ldr x0, [x0]
|
|
mov sp, x0
|
|
ret
|
|
|
|
.global armv8_el2_to_aarch32
|
|
armv8_el2_to_aarch32:
|
|
cmp x0, #0
|
|
bne 0f
|
|
mov x3, x2
|
|
mov x2, x1
|
|
mov x1, x4
|
|
ldr x0, =0xc20000fd
|
|
0:
|
|
smc #0
|
|
ret
|