projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 68145d4c | 2 | /* |
| 09c2b8f3 | 3 | * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org> |
| 68145d4c AB |
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> | |
| 68145d4c | 12 | */ |
| d678a59d | 13 | #include <common.h> |
| 691d719d | 14 | #include <init.h> |
| 8120e068 | 15 | #include <lmb.h> |
| 401d1c4f | 16 | #include <asm/global_data.h> |
| 68145d4c AB |
17 | |
| 18 | DECLARE_GLOBAL_DATA_PTR; | |
| 19 | ||
| 20 | int arch_reserve_stacks(void) | |
| 21 | { | |
| 22 | #ifdef CONFIG_SPL_BUILD | |
| 23 | gd->start_addr_sp -= 128; /* leave 32 words for abort-stack */ | |
| 24 | gd->irq_sp = gd->start_addr_sp; | |
| 25 | #else | |
| 26 | /* setup stack pointer for exceptions */ | |
| 27 | gd->irq_sp = gd->start_addr_sp; | |
| 28 | ||
| 29 | # if !defined(CONFIG_ARM64) | |
| 68145d4c AB |
30 | /* leave 3 words for abort-stack, plus 1 for alignment */ |
| 31 | gd->start_addr_sp -= 16; | |
| 32 | # endif | |
| 33 | #endif | |
| 34 | ||
| 35 | return 0; | |
| 36 | } | |
| 8120e068 MV |
37 | |
| 38 | static ulong get_sp(void) | |
| 39 | { | |
| 40 | ulong ret; | |
| 41 | ||
| 42 | asm("mov %0, sp" : "=r"(ret) : ); | |
| 43 | return ret; | |
| 44 | } | |
| 45 | ||
| 46 | void arch_lmb_reserve(struct lmb *lmb) | |
| 47 | { | |
| b1d0487c | 48 | arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 16384); |
| 8120e068 | 49 | } |