1/*
2 * Copyright (c) 2018, 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 <drivers/arm/gicv3.h>
10#include <platform_def.h>
11
12	.globl	plat_secondary_cold_boot_setup
13	.globl	plat_is_my_cpu_primary
14	.globl	versal_calc_core_pos
15	.globl	platform_mem_init
16	.globl	plat_my_core_pos
17
18	/* -----------------------------------------------------
19	 * void plat_secondary_cold_boot_setup (void);
20	 *
21	 * This function performs any platform specific actions
22	 * needed for a secondary cpu after a cold reset e.g
23	 * mark the cpu's presence, mechanism to place it in a
24	 * holding pen etc.
25	 * TODO: Should we read the PSYS register to make sure
26	 * that the request has gone through.
27	 * -----------------------------------------------------
28	 */
29func plat_secondary_cold_boot_setup
30	mrs	x0, mpidr_el1
31
32	/*
33	 * There is no sane reason to come out of this wfi. This
34	 * cpu will be powered on and reset by the cpu_on pm api
35	 */
36	dsb	sy
37	bl	plat_panic_handler
38endfunc plat_secondary_cold_boot_setup
39
40func plat_is_my_cpu_primary
41	mov	x9, x30
42	bl	plat_my_core_pos
43	cmp	x0, #VERSAL_PRIMARY_CPU
44	cset	x0, eq
45	ret	x9
46endfunc plat_is_my_cpu_primary
47
48	/* -----------------------------------------------------
49	 *  unsigned int plat_my_core_pos(void)
50	 *  This function uses the versal_calc_core_pos()
51	 *  definition to get the index of the calling CPU.
52	 * -----------------------------------------------------
53	 */
54func plat_my_core_pos
55	mrs	x0, mpidr_el1
56	b	versal_calc_core_pos
57endfunc plat_my_core_pos
58
59func versal_calc_core_pos
60	and	x1, x0, #MPIDR_CPU_MASK
61	and	x0, x0, #MPIDR_CLUSTER_MASK
62	add	x0, x1, x0, LSR #6
63	ret
64endfunc versal_calc_core_pos
65
66	/* ---------------------------------------------------------------------
67	 * We don't need to carry out any memory initialization on VERSAL
68	 * platform. The Secure RAM is accessible straight away.
69	 * ---------------------------------------------------------------------
70	 */
71func platform_mem_init
72	ret
73endfunc platform_mem_init
74