| /* |
| * Copyright (c) 2015 Andreas Bießmann <andreas.devel@googlemail.com> |
| * |
| * Copyright (c) 2011 The Chromium OS Authors. |
| * (C) Copyright 2002-2006 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * (C) Copyright 2002 |
| * Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
| * Marius Groeger <mgroeger@sysgo.de> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| #include <common.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| int arch_reserve_stacks(void) |
| { |
| #ifdef CONFIG_SPL_BUILD |
| gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */ |
| gd->irq_sp = gd->start_addr_sp; |
| #else |
| /* setup stack pointer for exceptions */ |
| gd->irq_sp = gd->start_addr_sp; |
| |
| # if !defined(CONFIG_ARM64) |
| # ifdef CONFIG_USE_IRQ |
| gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ); |
| debug("Reserving %zu Bytes for IRQ stack at: %08lx\n", |
| CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp); |
| |
| /* 8-byte alignment for ARM ABI compliance */ |
| gd->start_addr_sp &= ~0x07; |
| # endif |
| /* leave 3 words for abort-stack, plus 1 for alignment */ |
| gd->start_addr_sp -= 16; |
| # endif |
| #endif |
| |
| return 0; |
| } |
