| Patrick Georgi | 40a3e32 | 2015-06-22 19:41:29 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Early initialization code for ARM architecture. |
| 3 | * |
| 4 | * This file is based off of the OMAP3530/ARM Cortex start.S file from Das |
| 5 | * U-Boot, which itself got the file from armboot. |
| 6 | * |
| 7 | * Copyright (c) 2004 Texas Instruments <r-woodruff2@ti.com> |
| 8 | * Copyright (c) 2001 Marius Gröger <mag@sysgo.de> |
| 9 | * Copyright (c) 2002 Alex Züpke <azu@sysgo.de> |
| 10 | * Copyright (c) 2002 Gary Jennejohn <garyj@denx.de> |
| 11 | * Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com> |
| 12 | * Copyright (c) 2003 Kshitij <kshitij@ti.com> |
| 13 | * Copyright (c) 2006-2008 Syed Mohammed Khasim <x0khasim@ti.com> |
| 14 | * Copyright (c) 2013 The Chromium OS Authors |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or |
| 17 | * modify it under the terms of the GNU General Public License as |
| 18 | * published by the Free Software Foundation; version 2 of |
| 19 | * the License. |
| 20 | * |
| 21 | * This program is distributed in the hope that it will be useful, |
| 22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 24 | * GNU General Public License for more details. |
| Patrick Georgi | 40a3e32 | 2015-06-22 19:41:29 +0200 | [diff] [blame] | 25 | */ |
| 26 | |
| 27 | #include <arch/asm.h> |
| 28 | |
| 29 | #include "stack.S" |
| 30 | |
| 31 | ENTRY(_start) |
| 32 | /* |
| 33 | * Set the cpu to System mode with IRQ and FIQ disabled. Prefetch/Data |
| 34 | * aborts may happen early and crash before the abort handlers are |
| 35 | * installed, but at least the problem will show up near the code that |
| 36 | * causes it. |
| 37 | */ |
| 38 | msr cpsr_cxf, #0xdf |
| 39 | |
| 40 | stack_init stack_top=_estack stack_bottom=_stack seed=1 func=main |
| 41 | ENDPROC(_start) |