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Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Andreas Bießmann25429862015-02-06 23:06:45 +01002/*
Andreas Bießmann07dafdb2016-05-01 03:46:16 +02003 * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org>
Andreas Bießmann25429862015-02-06 23:06:45 +01004 *
5 * Copyright (c) 2011 The Chromium OS Authors.
6 * (C) Copyright 2002-2006
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 *
9 * (C) Copyright 2002
10 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
11 * Marius Groeger <mgroeger@sysgo.de>
Andreas Bießmann25429862015-02-06 23:06:45 +010012 */
13#include <common.h>
Simon Glass97589732020-05-10 11:40:02 -060014#include <init.h>
Andreas Bießmann25429862015-02-06 23:06:45 +010015
16DECLARE_GLOBAL_DATA_PTR;
17
18int arch_reserve_stacks(void)
19{
20 ulong *s;
21
22 /* setup stack pointer for exceptions */
23 gd->irq_sp = gd->start_addr_sp;
24
25 /* Clear initial stack frame */
26 s = (ulong *)gd->start_addr_sp;
27 *s = 0; /* Terminate back chain */
28 *++s = 0; /* NULL return address */
29
30 return 0;
31}