14f6ad66aSAchin Gupta/* 2e83b0cadSDan Handley * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved. 34f6ad66aSAchin Gupta * 44f6ad66aSAchin Gupta * Redistribution and use in source and binary forms, with or without 54f6ad66aSAchin Gupta * modification, are permitted provided that the following conditions are met: 64f6ad66aSAchin Gupta * 74f6ad66aSAchin Gupta * Redistributions of source code must retain the above copyright notice, this 84f6ad66aSAchin Gupta * list of conditions and the following disclaimer. 94f6ad66aSAchin Gupta * 104f6ad66aSAchin Gupta * Redistributions in binary form must reproduce the above copyright notice, 114f6ad66aSAchin Gupta * this list of conditions and the following disclaimer in the documentation 124f6ad66aSAchin Gupta * and/or other materials provided with the distribution. 134f6ad66aSAchin Gupta * 144f6ad66aSAchin Gupta * Neither the name of ARM nor the names of its contributors may be used 154f6ad66aSAchin Gupta * to endorse or promote products derived from this software without specific 164f6ad66aSAchin Gupta * prior written permission. 174f6ad66aSAchin Gupta * 184f6ad66aSAchin Gupta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 194f6ad66aSAchin Gupta * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 204f6ad66aSAchin Gupta * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 214f6ad66aSAchin Gupta * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 224f6ad66aSAchin Gupta * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 234f6ad66aSAchin Gupta * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 244f6ad66aSAchin Gupta * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 254f6ad66aSAchin Gupta * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 264f6ad66aSAchin Gupta * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 274f6ad66aSAchin Gupta * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 284f6ad66aSAchin Gupta * POSSIBILITY OF SUCH DAMAGE. 294f6ad66aSAchin Gupta */ 304f6ad66aSAchin Gupta 314f6ad66aSAchin Gupta#include <arch.h> 320a30cf54SAndrew Thoelke#include <asm_macros.S> 335f0cdb05SDan Handley#include <platform_def.h> 344f6ad66aSAchin Gupta 354f6ad66aSAchin Gupta 364f6ad66aSAchin Gupta .weak platform_get_core_pos 374f6ad66aSAchin Gupta .weak platform_is_primary_cpu 384f6ad66aSAchin Gupta .weak platform_check_mpidr 394f6ad66aSAchin Gupta .weak plat_report_exception 40*c67b09bdSSoby Mathew .weak plat_crash_console_init 41*c67b09bdSSoby Mathew .weak plat_crash_console_putc 424f6ad66aSAchin Gupta 434f6ad66aSAchin Gupta /* ----------------------------------------------------- 444f6ad66aSAchin Gupta * int platform_get_core_pos(int mpidr); 454f6ad66aSAchin Gupta * With this function: CorePos = (ClusterId * 4) + 464f6ad66aSAchin Gupta * CoreId 474f6ad66aSAchin Gupta * ----------------------------------------------------- 484f6ad66aSAchin Gupta */ 490a30cf54SAndrew Thoelkefunc platform_get_core_pos 504f6ad66aSAchin Gupta and x1, x0, #MPIDR_CPU_MASK 514f6ad66aSAchin Gupta and x0, x0, #MPIDR_CLUSTER_MASK 524f6ad66aSAchin Gupta add x0, x1, x0, LSR #6 534f6ad66aSAchin Gupta ret 544f6ad66aSAchin Gupta 554f6ad66aSAchin Gupta /* ----------------------------------------------------- 564f6ad66aSAchin Gupta * void platform_is_primary_cpu (unsigned int mpid); 574f6ad66aSAchin Gupta * 584f6ad66aSAchin Gupta * Given the mpidr say whether this cpu is the primary 594f6ad66aSAchin Gupta * cpu (applicable ony after a cold boot) 604f6ad66aSAchin Gupta * ----------------------------------------------------- 614f6ad66aSAchin Gupta */ 620a30cf54SAndrew Thoelkefunc platform_is_primary_cpu 634f6ad66aSAchin Gupta and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK) 644f6ad66aSAchin Gupta cmp x0, #PRIMARY_CPU 654f6ad66aSAchin Gupta cset x0, eq 664f6ad66aSAchin Gupta ret 674f6ad66aSAchin Gupta 684f6ad66aSAchin Gupta /* ----------------------------------------------------- 694f6ad66aSAchin Gupta * Placeholder function which should be redefined by 704f6ad66aSAchin Gupta * each platform. 714f6ad66aSAchin Gupta * ----------------------------------------------------- 724f6ad66aSAchin Gupta */ 730a30cf54SAndrew Thoelkefunc platform_check_mpidr 744f6ad66aSAchin Gupta mov x0, xzr 754f6ad66aSAchin Gupta ret 764f6ad66aSAchin Gupta 774f6ad66aSAchin Gupta /* ----------------------------------------------------- 784f6ad66aSAchin Gupta * Placeholder function which should be redefined by 794f6ad66aSAchin Gupta * each platform. 804f6ad66aSAchin Gupta * ----------------------------------------------------- 814f6ad66aSAchin Gupta */ 820a30cf54SAndrew Thoelkefunc plat_report_exception 834f6ad66aSAchin Gupta ret 84*c67b09bdSSoby Mathew 85*c67b09bdSSoby Mathew /* ----------------------------------------------------- 86*c67b09bdSSoby Mathew * Placeholder function which should be redefined by 87*c67b09bdSSoby Mathew * each platform. 88*c67b09bdSSoby Mathew * ----------------------------------------------------- 89*c67b09bdSSoby Mathew */ 90*c67b09bdSSoby Mathewfunc plat_crash_console_init 91*c67b09bdSSoby Mathew mov x0, #0 92*c67b09bdSSoby Mathew ret 93*c67b09bdSSoby Mathew 94*c67b09bdSSoby Mathew /* ----------------------------------------------------- 95*c67b09bdSSoby Mathew * Placeholder function which should be redefined by 96*c67b09bdSSoby Mathew * each platform. 97*c67b09bdSSoby Mathew * ----------------------------------------------------- 98*c67b09bdSSoby Mathew */ 99*c67b09bdSSoby Mathewfunc plat_crash_console_putc 100*c67b09bdSSoby Mathew ret 101