blob: 7eccfe0e30c14fd66541e7feebf9403eec53d918 [file] [log] [blame]
Andreas Bießmann68145d42015-02-06 23:06:45 +01001/*
Andreas Bießmann09c2b8f2016-05-01 03:46:16 +02002 * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org>
Andreas Bießmann68145d42015-02-06 23:06:45 +01003 *
4 * Copyright (c) 2011 The Chromium OS Authors.
5 * (C) Copyright 2002-2006
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 *
8 * (C) Copyright 2002
9 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
10 * Marius Groeger <mgroeger@sysgo.de>
11 *
12 * SPDX-License-Identifier: GPL-2.0+
13 */
14#include <common.h>
15
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}