1/* 2 * Copyright (c) 2013-2016, 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_reset_handler 39 .weak plat_disable_acp 40 .weak bl1_plat_prepare_exit 41 .weak plat_error_handler 42 .weak plat_panic_handler 43 44#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 71 /* ----------------------------------------------------- 72 * Placeholder function which should be redefined by 73 * each platform. 74 * ----------------------------------------------------- 75 */ 76func plat_report_exception 77 ret 78endfunc plat_report_exception 79 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 88endfunc plat_crash_console_init 89 90 /* ----------------------------------------------------- 91 * Placeholder function which should be redefined by 92 * each platform. 93 * ----------------------------------------------------- 94 */ 95func plat_crash_console_putc 96 ret 97endfunc plat_crash_console_putc 98 99 /* ----------------------------------------------------- 100 * Placeholder function which should be redefined by 101 * each platform. This function should preserve x19 - x29. 102 * ----------------------------------------------------- 103 */ 104func plat_reset_handler 105 ret 106endfunc plat_reset_handler 107 108 /* ----------------------------------------------------- 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 116endfunc plat_disable_acp 117 118 /* ----------------------------------------------------- 119 * void bl1_plat_prepare_exit(entry_point_info_t *ep_info); 120 * Called before exiting BL1. Default: do nothing 121 * ----------------------------------------------------- 122 */ 123func bl1_plat_prepare_exit 124 ret 125endfunc bl1_plat_prepare_exit 126 127 /* ----------------------------------------------------- 128 * void plat_error_handler(int err) __dead2; 129 * Endless loop by default. 130 * ----------------------------------------------------- 131 */ 132func plat_error_handler 133 wfi 134 b plat_error_handler 135endfunc plat_error_handler 136 137 /* ----------------------------------------------------- 138 * void plat_panic_handler(void) __dead2; 139 * Endless loop by default. 140 * ----------------------------------------------------- 141 */ 142func plat_panic_handler 143 wfi 144 b plat_panic_handler 145endfunc plat_panic_handler 146