1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org> 4 * 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> 12 */ 13 #include <common.h> 14 15 DECLARE_GLOBAL_DATA_PTR; 16 17 int arch_reserve_stacks(void) 18 { 19 #ifdef CONFIG_SPL_BUILD 20 gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */ 21 gd->irq_sp = gd->start_addr_sp; 22 #else 23 /* setup stack pointer for exceptions */ 24 gd->irq_sp = gd->start_addr_sp; 25 26 # if !defined(CONFIG_ARM64) 27 /* leave 3 words for abort-stack, plus 1 for alignment */ 28 gd->start_addr_sp -= 16; 29 # endif 30 #endif 31 32 return 0; 33 } 34