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 36 .weak platform_get_core_pos 37 .weak platform_check_mpidr 38 .weak plat_report_exception 39 .weak plat_crash_console_init 40 .weak plat_crash_console_putc 41 42 /* ----------------------------------------------------- 43 * int platform_get_core_pos(int mpidr); 44 * With this function: CorePos = (ClusterId * 4) + 45 * CoreId 46 * ----------------------------------------------------- 47 */ 48func platform_get_core_pos 49 and x1, x0, #MPIDR_CPU_MASK 50 and x0, x0, #MPIDR_CLUSTER_MASK 51 add x0, x1, x0, LSR #6 52 ret 53 54 /* ----------------------------------------------------- 55 * Placeholder function which should be redefined by 56 * each platform. 57 * ----------------------------------------------------- 58 */ 59func platform_check_mpidr 60 mov x0, xzr 61 ret 62 63 /* ----------------------------------------------------- 64 * Placeholder function which should be redefined by 65 * each platform. 66 * ----------------------------------------------------- 67 */ 68func plat_report_exception 69 ret 70 71 /* ----------------------------------------------------- 72 * Placeholder function which should be redefined by 73 * each platform. 74 * ----------------------------------------------------- 75 */ 76func plat_crash_console_init 77 mov x0, #0 78 ret 79 80 /* ----------------------------------------------------- 81 * Placeholder function which should be redefined by 82 * each platform. 83 * ----------------------------------------------------- 84 */ 85func plat_crash_console_putc 86 ret 87