blob: 1b2fbb77090393523f362cb57627b20c3adead9d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* Early initialization code for ARM architecture.
*
* This file is based off of the OMAP3530/ARM Cortex start.S file from Das
* U-Boot, which itself got the file from armboot.
*
* Copyright (c) 2004 Texas Instruments <r-woodruff2@ti.com>
* Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
* Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
* Copyright (c) 2002 Gary Jennejohn <garyj@denx.de>
* Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com>
* Copyright (c) 2003 Kshitij <kshitij@ti.com>
* Copyright (c) 2006-2008 Syed Mohammed Khasim <x0khasim@ti.com>
* Copyright (c) 2013 The Chromium OS Authors
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <arch/asm.h>
#include "stack.S"
ENTRY(_start)
/*
* Set the cpu to System mode with IRQ and FIQ disabled. Prefetch/Data
* aborts may happen early and crash before the abort handlers are
* installed, but at least the problem will show up near the code that
* causes it.
*/
msr cpsr_cxf, #0xdf
stack_init stack=.Stack size=.Stack_size seed=1 func=main
ENDPROC(_start)
/* we do it this way because it's a 32-bit constant and
* in some cases too far away to be loaded as just an offset
* from IP
*/
.align 2
.Stack:
.word CONFIG_BOOTBLOCK_STACK_TOP
.align 2
/* create this size the same way we do in ramstage.ld: top-bottom */
.Stack_size:
.word CONFIG_BOOTBLOCK_STACK_TOP - CONFIG_BOOTBLOCK_STACK_BOTTOM
|
