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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
Soby Mathewb0082d22015-04-09 13:40:55 +010037 .globl plat_set_my_stack
38 .globl plat_get_my_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000039 .globl platform_set_stack
40 .globl platform_get_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000041
42 /* -----------------------------------------------------
Soby Mathewb0082d22015-04-09 13:40:55 +010043 * unsigned long plat_get_my_stack ()
Andrew Thoelke65668f92014-03-20 10:48:23 +000044 *
45 * For cold-boot BL images, only the primary CPU needs a
46 * stack. This function returns the stack pointer for a
47 * stack allocated in device memory.
48 * -----------------------------------------------------
49 */
Soby Mathewb0082d22015-04-09 13:40:55 +010050func plat_get_my_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000051 get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
52 ret
Soby Mathewb0082d22015-04-09 13:40:55 +010053endfunc plat_get_my_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000054
55 /* -----------------------------------------------------
Soby Mathewb0082d22015-04-09 13:40:55 +010056 * void plat_set_my_stack ()
Andrew Thoelke65668f92014-03-20 10:48:23 +000057 *
58 * For cold-boot BL images, only the primary CPU needs a
59 * stack. This function sets the stack pointer to a stack
60 * allocated in normal memory.
61 * -----------------------------------------------------
62 */
Soby Mathewb0082d22015-04-09 13:40:55 +010063func plat_set_my_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000064 get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
65 mov sp, x0
66 ret
Soby Mathewb0082d22015-04-09 13:40:55 +010067endfunc plat_set_my_stack
Andrew Thoelke65668f92014-03-20 10:48:23 +000068
69 /* -----------------------------------------------------
Soby Mathew70716d62015-07-13 16:26:11 +010070 * unsigned long platform_get_stack ()
71 *
72 * For cold-boot BL images, only the primary CPU needs a
73 * stack. This function returns the stack pointer for a
74 * stack allocated in device memory. This function
75 * is deprecated.
76 * -----------------------------------------------------
77 */
78func_deprecated platform_get_stack
79 b plat_get_my_stack
80endfunc_deprecated platform_get_stack
81
82 /* -----------------------------------------------------
83 * void platform_set_stack ()
84 *
85 * For cold-boot BL images, only the primary CPU needs a
86 * stack. This function sets the stack pointer to a stack
87 * allocated in normal memory.This function is
88 * deprecated.
89 * -----------------------------------------------------
90 */
91func_deprecated platform_set_stack
92 b plat_set_my_stack
93endfunc_deprecated platform_set_stack
94
95 /* -----------------------------------------------------
Andrew Thoelke65668f92014-03-20 10:48:23 +000096 * Single cpu stack in normal memory.
97 * Used for C code during boot, PLATFORM_STACK_SIZE bytes
98 * are allocated
99 * -----------------------------------------------------
100 */
101declare_stack platform_normal_stacks, tzfw_normal_stacks, \
Soby Mathewbfdbecf2016-06-09 17:16:35 +0100102 PLATFORM_STACK_SIZE, 1, CACHE_WRITEBACK_GRANULE