blob: 73b74b2eed79d7dc670aee9e5ba419a729842dbf [file] [log] [blame]
Andrew Thoelke65668f92014-03-20 10:48:23 +00001/*
2 * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * Neither the name of ARM nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific
16 * prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include <arch.h>
Andrew Thoelke65668f92014-03-20 10:48:23 +000032#include <asm_macros.S>
Dan Handleyed6ff952014-05-14 17:44:19 +010033#include <platform_def.h>
Andrew Thoelke65668f92014-03-20 10:48:23 +000034
35
Andrew Thoelke65668f92014-03-20 10:48:23 +000036 .local platform_normal_stacks
37 .globl platform_set_stack
38 .globl platform_get_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000039
40 /* -----------------------------------------------------
Andrew Thoelke65668f92014-03-20 10:48:23 +000041 * unsigned long platform_get_stack (unsigned long)
42 *
43 * For cold-boot BL images, only the primary CPU needs a
44 * stack. This function returns the stack pointer for a
45 * stack allocated in device memory.
46 * -----------------------------------------------------
47 */
48func platform_get_stack
49 get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
50 ret
51
52 /* -----------------------------------------------------
53 * void platform_set_stack (unsigned long)
54 *
55 * For cold-boot BL images, only the primary CPU needs a
56 * stack. This function sets the stack pointer to a stack
57 * allocated in normal memory.
58 * -----------------------------------------------------
59 */
60func platform_set_stack
61 get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
62 mov sp, x0
63 ret
64
65 /* -----------------------------------------------------
66 * Single cpu stack in normal memory.
67 * Used for C code during boot, PLATFORM_STACK_SIZE bytes
68 * are allocated
69 * -----------------------------------------------------
70 */
71declare_stack platform_normal_stacks, tzfw_normal_stacks, \
72 PLATFORM_STACK_SIZE, 1