2 * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org>
4 * Copyright (c) 2011 The Chromium OS Authors.
5 * (C) Copyright 2002-2006
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
9 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
10 * Marius Groeger <mgroeger@sysgo.de>
12 * SPDX-License-Identifier: GPL-2.0+
16 DECLARE_GLOBAL_DATA_PTR;
18 int arch_reserve_stacks(void)
22 /* setup stack pointer for exceptions */
23 gd->irq_sp = gd->start_addr_sp;
25 /* Clear initial stack frame */
26 s = (ulong *)gd->start_addr_sp;
27 *s = 0; /* Terminate back chain */
28 *++s = 0; /* NULL return address */