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Achin Gupta4f6ad662013-10-25 09:08:21 +01001/*
Antonio Nino Diaz1f21bcf2016-02-01 13:57:25 +00002 * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
Achin Gupta4f6ad662013-10-25 09:08:21 +01003 *
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 Thoelke38bde412014-03-18 13:46:55 +000032#include <asm_macros.S>
Dan Handleyed6ff952014-05-14 17:44:19 +010033#include <platform_def.h>
Achin Gupta4f6ad662013-10-25 09:08:21 +010034
Achin Gupta4f6ad662013-10-25 09:08:21 +010035 .weak plat_report_exception
Soby Mathew066f7132014-07-14 16:57:23 +010036 .weak plat_crash_console_init
37 .weak plat_crash_console_putc
Soby Mathewf1785fd2014-08-14 12:22:32 +010038 .weak plat_reset_handler
Soby Mathew8e2f2872014-08-14 12:49:05 +010039 .weak plat_disable_acp
Juan Castillod1413b22015-10-05 16:59:38 +010040 .weak bl1_plat_prepare_exit
Juan Castillo26ae5832015-09-25 15:41:14 +010041 .weak plat_error_handler
Antonio Nino Diaz1f21bcf2016-02-01 13:57:25 +000042 .weak plat_panic_handler
Achin Gupta4f6ad662013-10-25 09:08:21 +010043
Soby Mathew70716d62015-07-13 16:26:11 +010044#if !ENABLE_PLAT_COMPAT
45 .globl platform_get_core_pos
46
47#define MPIDR_RES_BIT_MASK 0xff000000
48
49 /* ------------------------------------------------------------------
50 * int platform_get_core_pos(int mpidr)
51 * Returns the CPU index of the CPU specified by mpidr. This is
52 * defined when platform compatibility is disabled to enable Trusted
53 * Firmware components like SPD using the old platform API to work.
54 * This API is deprecated and it assumes that the mpidr specified is
55 * that of a valid and present CPU. Instead, plat_my_core_pos()
56 * should be used for CPU index of the current CPU and
57 * plat_core_pos_by_mpidr() should be used for CPU index of a
58 * CPU specified by its mpidr.
59 * ------------------------------------------------------------------
60 */
61func_deprecated platform_get_core_pos
62 bic x0, x0, #MPIDR_RES_BIT_MASK
63 mrs x1, mpidr_el1
64 bic x1, x1, #MPIDR_RES_BIT_MASK
65 cmp x0, x1
66 beq plat_my_core_pos
67 b platform_core_pos_helper
68endfunc_deprecated platform_get_core_pos
69#endif
70
Achin Gupta4f6ad662013-10-25 09:08:21 +010071 /* -----------------------------------------------------
Achin Gupta4f6ad662013-10-25 09:08:21 +010072 * Placeholder function which should be redefined by
73 * each platform.
74 * -----------------------------------------------------
75 */
Andrew Thoelke38bde412014-03-18 13:46:55 +000076func plat_report_exception
Achin Gupta4f6ad662013-10-25 09:08:21 +010077 ret
Kévin Petita877c252015-03-24 14:03:57 +000078endfunc plat_report_exception
Soby Mathew066f7132014-07-14 16:57:23 +010079
80 /* -----------------------------------------------------
81 * Placeholder function which should be redefined by
82 * each platform.
83 * -----------------------------------------------------
84 */
85func plat_crash_console_init
86 mov x0, #0
87 ret
Kévin Petita877c252015-03-24 14:03:57 +000088endfunc plat_crash_console_init
Soby Mathew066f7132014-07-14 16:57:23 +010089
90 /* -----------------------------------------------------
91 * Placeholder function which should be redefined by
92 * each platform.
93 * -----------------------------------------------------
94 */
95func plat_crash_console_putc
96 ret
Kévin Petita877c252015-03-24 14:03:57 +000097endfunc plat_crash_console_putc
Soby Mathewf1785fd2014-08-14 12:22:32 +010098
99 /* -----------------------------------------------------
100 * Placeholder function which should be redefined by
101 * each platform. This function should preserve x10.
102 * -----------------------------------------------------
103 */
104func plat_reset_handler
105 ret
Kévin Petita877c252015-03-24 14:03:57 +0000106endfunc plat_reset_handler
Soby Mathew8e2f2872014-08-14 12:49:05 +0100107
108 /* -----------------------------------------------------
109 * Placeholder function which should be redefined by
110 * each platform. This function is allowed to use
111 * registers x0 - x17.
112 * -----------------------------------------------------
113 */
114func plat_disable_acp
115 ret
Kévin Petita877c252015-03-24 14:03:57 +0000116endfunc plat_disable_acp
Juan Castillod1413b22015-10-05 16:59:38 +0100117
118 /* -----------------------------------------------------
Sandrine Bailleux87322b32015-11-10 15:01:57 +0000119 * void bl1_plat_prepare_exit(entry_point_info_t *ep_info);
Juan Castillod1413b22015-10-05 16:59:38 +0100120 * Called before exiting BL1. Default: do nothing
121 * -----------------------------------------------------
122 */
123func bl1_plat_prepare_exit
124 ret
125endfunc bl1_plat_prepare_exit
Juan Castillo26ae5832015-09-25 15:41:14 +0100126
127 /* -----------------------------------------------------
128 * void plat_error_handler(int err) __dead2;
129 * Endless loop by default.
130 * -----------------------------------------------------
131 */
132func plat_error_handler
Sandrine Bailleux628198b2016-08-18 09:24:40 +0100133 wfi
Juan Castillo26ae5832015-09-25 15:41:14 +0100134 b plat_error_handler
135endfunc plat_error_handler
Antonio Nino Diaz1f21bcf2016-02-01 13:57:25 +0000136
137 /* -----------------------------------------------------
138 * void plat_panic_handler(void) __dead2;
139 * Endless loop by default.
140 * -----------------------------------------------------
141 */
142func plat_panic_handler
Sandrine Bailleux628198b2016-08-18 09:24:40 +0100143 wfi
Antonio Nino Diaz1f21bcf2016-02-01 13:57:25 +0000144 b plat_panic_handler
145endfunc plat_panic_handler