1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org> 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (c) 2011 The Chromium OS Authors. 5*4882a593Smuzhiyun * (C) Copyright 2002-2006 6*4882a593Smuzhiyun * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * (C) Copyright 2002 9*4882a593Smuzhiyun * Sysgo Real-Time Solutions, GmbH <www.elinos.com> 10*4882a593Smuzhiyun * Marius Groeger <mgroeger@sysgo.de> 11*4882a593Smuzhiyun * 12*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 13*4882a593Smuzhiyun */ 14*4882a593Smuzhiyun #include <common.h> 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR; 17*4882a593Smuzhiyun arch_reserve_stacks(void)18*4882a593Smuzhiyunint arch_reserve_stacks(void) 19*4882a593Smuzhiyun { 20*4882a593Smuzhiyun #ifdef CONFIG_SPL_BUILD 21*4882a593Smuzhiyun gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */ 22*4882a593Smuzhiyun gd->irq_sp = gd->start_addr_sp; 23*4882a593Smuzhiyun #else 24*4882a593Smuzhiyun /* setup stack pointer for exceptions */ 25*4882a593Smuzhiyun gd->irq_sp = gd->start_addr_sp; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun # if !defined(CONFIG_ARM64) 28*4882a593Smuzhiyun #if CONFIG_IS_ENABLED(IRQ) 29*4882a593Smuzhiyun #ifndef CONFIG_IRQ_STACK_SIZE 30*4882a593Smuzhiyun #define CONFIG_IRQ_STACK_SIZE 8192 31*4882a593Smuzhiyun #endif 32*4882a593Smuzhiyun gd->start_addr_sp -= CONFIG_IRQ_STACK_SIZE; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #else 35*4882a593Smuzhiyun /* leave 3 words for abort-stack, plus 1 for alignment */ 36*4882a593Smuzhiyun gd->start_addr_sp -= 16; 37*4882a593Smuzhiyun #endif 38*4882a593Smuzhiyun # endif 39*4882a593Smuzhiyun #endif 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun return 0; 42*4882a593Smuzhiyun } 43