mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 07:01:24 +00:00
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
|
/*
|
||
|
|
* 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;
|
||
|
|
}
|