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feat(plat/rcar3): add process to back up X6 and X7 register's value

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Because the x6 and x7 registers will be overwritten by the callee function,
added the processing the register's value push to/pop from stack memory.

Signed-off-by: Hideyuki Nitta <hideyuki.nitta.jf@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Change-Id: I5351a008d3b208a30a8bc8651b8d9b4d1a02a8e8
This commit is contained in:
Toshiyuki Ogasahara 2021-07-12 19:17:12 +09:00 • committed by Marek Vasut
parent d10f87674e
commit 7d58aed3b0
1 changed files with 5 additions and 1 deletions
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6
plat/renesas/common/aarch64/plat_helpers.S
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@ -1,6 +1,6 @@
/*
* Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
* Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -284,7 +284,11 @@ func plat_crash_console_putc
str x3, [sp, #-16]!
str x4, [sp, #-16]!
str x5, [sp, #-16]!
str x6, [sp, #-16]!
str x7, [sp, #-16]!
bl console_rcar_putc
ldr x7, [sp], #16
ldr x6, [sp], #16
ldr x5, [sp], #16
ldr x4, [sp], #16
ldr x3, [sp], #16