Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Andreas Bießmann | 2542986 | 2015-02-06 23:06:45 +0100 | [diff] [blame] | 2 | /* |
Andreas Bießmann | 07dafdb | 2016-05-01 03:46:16 +0200 | [diff] [blame] | 3 | * Copyright (c) 2015 Andreas Bießmann <andreas@biessmann.org> |
Andreas Bießmann | 2542986 | 2015-02-06 23:06:45 +0100 | [diff] [blame] | 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> |
Andreas Bießmann | 2542986 | 2015-02-06 23:06:45 +0100 | [diff] [blame] | 12 | */ |
Simon Glass | 9758973 | 2020-05-10 11:40:02 -0600 | [diff] [blame] | 13 | #include <init.h> |
Simon Glass | 3ba929a | 2020-10-30 21:38:53 -0600 | [diff] [blame] | 14 | #include <asm/global_data.h> |
Ovidiu Panait | bbce5f3 | 2022-09-13 21:31:28 +0300 | [diff] [blame] | 15 | #include <asm/mp.h> |
Andreas Bießmann | 2542986 | 2015-02-06 23:06:45 +0100 | [diff] [blame] | 16 | |
| 17 | DECLARE_GLOBAL_DATA_PTR; |
| 18 | |
| 19 | int arch_reserve_stacks(void) |
| 20 | { |
| 21 | ulong *s; |
| 22 | |
| 23 | /* setup stack pointer for exceptions */ |
| 24 | gd->irq_sp = gd->start_addr_sp; |
| 25 | |
| 26 | /* Clear initial stack frame */ |
| 27 | s = (ulong *)gd->start_addr_sp; |
| 28 | *s = 0; /* Terminate back chain */ |
| 29 | *++s = 0; /* NULL return address */ |
| 30 | |
| 31 | return 0; |
| 32 | } |
Ovidiu Panait | bbce5f3 | 2022-09-13 21:31:28 +0300 | [diff] [blame] | 33 | |
| 34 | int arch_setup_dest_addr(void) |
| 35 | { |
| 36 | #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500)) |
| 37 | /* |
| 38 | * We need to make sure the location we intend to put secondary core |
| 39 | * boot code is reserved and not used by any part of u-boot |
| 40 | */ |
| 41 | if (gd->relocaddr > determine_mp_bootpg(NULL)) { |
| 42 | gd->relocaddr = determine_mp_bootpg(NULL); |
| 43 | debug("Reserving MP boot page to %08lx\n", gd->relocaddr); |
| 44 | } |
| 45 | #endif |
| 46 | |
| 47 | return 0; |
| 48 | } |