]> Git Repo - u-boot.git/blob - arch/powerpc/lib/stack.c
common: Drop asm/global_data.h from common header
[u-boot.git] / arch / powerpc / lib / stack.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2015 Andreas Bießmann <[email protected]>
4  *
5  * Copyright (c) 2011 The Chromium OS Authors.
6  * (C) Copyright 2002-2006
7  * Wolfgang Denk, DENX Software Engineering, [email protected].
8  *
9  * (C) Copyright 2002
10  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
11  * Marius Groeger <[email protected]>
12  */
13 #include <common.h>
14 #include <init.h>
15 #include <asm/global_data.h>
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 }
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