1/*
2 * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <arch.h>
8#include <asm_macros.S>
9#include <platform_def.h>
10
11	.weak	plat_get_my_stack
12	.weak	plat_set_my_stack
13
14	/* -----------------------------------------------------
15	 * unsigned long plat_get_my_stack ()
16	 *
17	 * For cold-boot BL images, only the primary CPU needs
18	 * a stack. This function returns the stack pointer for
19	 * a stack allocated in normal memory.
20	 * -----------------------------------------------------
21	 */
22func plat_get_my_stack
23	get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
24	bx	lr
25endfunc	plat_get_my_stack
26
27	/* -----------------------------------------------------
28	 * void plat_set_my_stack ()
29	 *
30	 * For cold-boot BL images, only the primary CPU needs
31	 * a stack. This function sets the stack pointer to a
32	 * stack allocated in normal memory.
33	 * -----------------------------------------------------
34	 */
35func plat_set_my_stack
36	get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
37	mov	sp, r0
38	bx	lr
39endfunc plat_set_my_stack
40
41	/* -----------------------------------------------------
42	 * Per-cpu stacks in normal memory. Each cpu gets a
43	 * stack of PLATFORM_STACK_SIZE bytes.
44	 * -----------------------------------------------------
45	 */
46declare_stack platform_normal_stacks, tzfw_normal_stacks, \
47		PLATFORM_STACK_SIZE, 1, CACHE_WRITEBACK_GRANULE
48