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| author | Tom Rini <trini@ti.com> | 2015-02-17 22:11:36 -0500 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2015-02-17 22:11:36 -0500 |
| commit | 9ec84f103b3f3e770043b06042e5d2d6f2339e39 (patch) | |
| tree | 693381b5c55d2a2e1d98707ff39a59ced75d66ef /arch/powerpc/lib/stack.c | |
| parent | 1e7b357a4ebf9a99a6258a0bbedf4e318a5263e0 (diff) | |
| parent | 5c98d7ffb0b11c9e3909f56ec5ce9dff682f1e30 (diff) | |
| download | u-boot-imx-9ec84f103b3f3e770043b06042e5d2d6f2339e39.zip u-boot-imx-9ec84f103b3f3e770043b06042e5d2d6f2339e39.tar.gz u-boot-imx-9ec84f103b3f3e770043b06042e5d2d6f2339e39.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-avr32
Diffstat (limited to 'arch/powerpc/lib/stack.c')
| -rw-r--r-- | arch/powerpc/lib/stack.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/powerpc/lib/stack.c b/arch/powerpc/lib/stack.c new file mode 100644 index 0000000..1985f03 --- /dev/null +++ b/arch/powerpc/lib/stack.c @@ -0,0 +1,31 @@ +/* + * 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) +{ + ulong *s; + + /* setup stack pointer for exceptions */ + gd->irq_sp = gd->start_addr_sp; + + /* Clear initial stack frame */ + s = (ulong *)gd->start_addr_sp; + *s = 0; /* Terminate back chain */ + *++s = 0; /* NULL return address */ + + return 0; +} |