1/* 2 * Copyright (c) 2013-2017, 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> 32#include <asm_macros.S> 33#include <platform_def.h> 34 35 .weak plat_report_exception 36 .weak plat_crash_console_init 37 .weak plat_crash_console_putc 38 .weak plat_crash_console_flush 39 .weak plat_reset_handler 40 .weak plat_disable_acp 41 .weak bl1_plat_prepare_exit 42 .weak plat_error_handler 43 .weak plat_panic_handler 44 45#if !ENABLE_PLAT_COMPAT 46 .globl platform_get_core_pos 47 48#define MPIDR_RES_BIT_MASK 0xff000000 49 50 /* ------------------------------------------------------------------ 51 * int platform_get_core_pos(int mpidr) 52 * Returns the CPU index of the CPU specified by mpidr. This is 53 * defined when platform compatibility is disabled to enable Trusted 54 * Firmware components like SPD using the old platform API to work. 55 * This API is deprecated and it assumes that the mpidr specified is 56 * that of a valid and present CPU. Instead, plat_my_core_pos() 57 * should be used for CPU index of the current CPU and 58 * plat_core_pos_by_mpidr() should be used for CPU index of a 59 * CPU specified by its mpidr. 60 * ------------------------------------------------------------------ 61 */ 62func_deprecated platform_get_core_pos 63 bic x0, x0, #MPIDR_RES_BIT_MASK 64 mrs x1, mpidr_el1 65 bic x1, x1, #MPIDR_RES_BIT_MASK 66 cmp x0, x1 67 beq plat_my_core_pos 68 b platform_core_pos_helper 69endfunc_deprecated platform_get_core_pos 70#endif 71 72 /* ----------------------------------------------------- 73 * Placeholder function which should be redefined by 74 * each platform. 75 * ----------------------------------------------------- 76 */ 77func plat_report_exception 78 ret 79endfunc plat_report_exception 80 81 /* ----------------------------------------------------- 82 * Placeholder function which should be redefined by 83 * each platform. 84 * ----------------------------------------------------- 85 */ 86func plat_crash_console_init 87 mov x0, #0 88 ret 89endfunc plat_crash_console_init 90 91 /* ----------------------------------------------------- 92 * Placeholder function which should be redefined by 93 * each platform. 94 * ----------------------------------------------------- 95 */ 96func plat_crash_console_putc 97 ret 98endfunc plat_crash_console_putc 99 100 /* ----------------------------------------------------- 101 * Placeholder function which should be redefined by 102 * each platform. 103 * ----------------------------------------------------- 104 */ 105func plat_crash_console_flush 106 ret 107endfunc plat_crash_console_flush 108 109 /* ----------------------------------------------------- 110 * Placeholder function which should be redefined by 111 * each platform. This function should preserve x19 - x29. 112 * ----------------------------------------------------- 113 */ 114func plat_reset_handler 115 ret 116endfunc plat_reset_handler 117 118 /* ----------------------------------------------------- 119 * Placeholder function which should be redefined by 120 * each platform. This function is allowed to use 121 * registers x0 - x17. 122 * ----------------------------------------------------- 123 */ 124func plat_disable_acp 125 ret 126endfunc plat_disable_acp 127 128 /* ----------------------------------------------------- 129 * void bl1_plat_prepare_exit(entry_point_info_t *ep_info); 130 * Called before exiting BL1. Default: do nothing 131 * ----------------------------------------------------- 132 */ 133func bl1_plat_prepare_exit 134 ret 135endfunc bl1_plat_prepare_exit 136 137 /* ----------------------------------------------------- 138 * void plat_error_handler(int err) __dead2; 139 * Endless loop by default. 140 * ----------------------------------------------------- 141 */ 142func plat_error_handler 143 wfi 144 b plat_error_handler 145endfunc plat_error_handler 146 147 /* ----------------------------------------------------- 148 * void plat_panic_handler(void) __dead2; 149 * Endless loop by default. 150 * ----------------------------------------------------- 151 */ 152func plat_panic_handler 153 wfi 154 b plat_panic_handler 155endfunc plat_panic_handler 156