1/* 2 * Copyright (c) 2013-2014, 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 43#if !ENABLE_PLAT_COMPAT 44 .globl platform_get_core_pos 45 46#define MPIDR_RES_BIT_MASK 0xff000000 47 48 /* ------------------------------------------------------------------ 49 * int platform_get_core_pos(int mpidr) 50 * Returns the CPU index of the CPU specified by mpidr. This is 51 * defined when platform compatibility is disabled to enable Trusted 52 * Firmware components like SPD using the old platform API to work. 53 * This API is deprecated and it assumes that the mpidr specified is 54 * that of a valid and present CPU. Instead, plat_my_core_pos() 55 * should be used for CPU index of the current CPU and 56 * plat_core_pos_by_mpidr() should be used for CPU index of a 57 * CPU specified by its mpidr. 58 * ------------------------------------------------------------------ 59 */ 60func_deprecated platform_get_core_pos 61 bic x0, x0, #MPIDR_RES_BIT_MASK 62 mrs x1, mpidr_el1 63 bic x1, x1, #MPIDR_RES_BIT_MASK 64 cmp x0, x1 65 beq plat_my_core_pos 66 b platform_core_pos_helper 67endfunc_deprecated platform_get_core_pos 68#endif 69 70 /* ----------------------------------------------------- 71 * Placeholder function which should be redefined by 72 * each platform. 73 * ----------------------------------------------------- 74 */ 75func plat_report_exception 76 ret 77endfunc plat_report_exception 78 79 /* ----------------------------------------------------- 80 * Placeholder function which should be redefined by 81 * each platform. 82 * ----------------------------------------------------- 83 */ 84func plat_crash_console_init 85 mov x0, #0 86 ret 87endfunc plat_crash_console_init 88 89 /* ----------------------------------------------------- 90 * Placeholder function which should be redefined by 91 * each platform. 92 * ----------------------------------------------------- 93 */ 94func plat_crash_console_putc 95 ret 96endfunc plat_crash_console_putc 97 98 /* ----------------------------------------------------- 99 * Placeholder function which should be redefined by 100 * each platform. This function should preserve x10. 101 * ----------------------------------------------------- 102 */ 103func plat_reset_handler 104 ret 105endfunc plat_reset_handler 106 107 /* ----------------------------------------------------- 108 * Placeholder function which should be redefined by 109 * each platform. This function is allowed to use 110 * registers x0 - x17. 111 * ----------------------------------------------------- 112 */ 113func plat_disable_acp 114 ret 115endfunc plat_disable_acp 116 117 /* ----------------------------------------------------- 118 * void bl1_plat_prepare_exit(entry_point_info_t *ep_info); 119 * Called before exiting BL1. Default: do nothing 120 * ----------------------------------------------------- 121 */ 122func bl1_plat_prepare_exit 123 ret 124endfunc bl1_plat_prepare_exit 125 126 /* ----------------------------------------------------- 127 * void plat_error_handler(int err) __dead2; 128 * Endless loop by default. 129 * ----------------------------------------------------- 130 */ 131func plat_error_handler 132 b plat_error_handler 133endfunc plat_error_handler 134