1/*
2 * A lowlevel_init function that sets up the stack to call a C function to
3 * perform further init.
4 *
5 * (C) Copyright 2010
6 * Texas Instruments, <www.ti.com>
7 *
8 * Author :
9 *	Aneesh V	<aneesh@ti.com>
10 *
11 * See file CREDITS for list of people who contributed to this
12 * project.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 */
29
30#include <asm-offsets.h>
31#include <config.h>
32#include <linux/linkage.h>
33
34ENTRY(lowlevel_init)
35	/*
36	 * Setup a temporary stack
37	 */
38	ldr	sp, =CONFIG_SYS_INIT_SP_ADDR
39	bic	sp, sp, #7 /* 8-byte alignment for ABI compliance */
40#ifdef CONFIG_SPL_BUILD
41	ldr	r8, =gdata
42#else
43	sub	sp, #GD_SIZE
44	bic	sp, sp, #7
45	mov	r8, sp
46#endif
47	/*
48	 * Save the old lr(passed in ip) and the current lr to stack
49	 */
50	push	{ip, lr}
51
52	/*
53	 * go setup pll, mux, memory
54	 */
55	bl	s_init
56	pop	{ip, pc}
57ENDPROC(lowlevel_init)
58