1 /* 2 * Copyright (c) 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 #include <assert.h> 31 #include <platform.h> 32 #include <xlat_tables.h> 33 34 /* 35 * The following 2 platform setup functions are weakly defined. They 36 * provide typical implementations that may be re-used by multiple 37 * platforms but may also be overridden by a platform if required. 38 */ 39 #pragma weak bl31_plat_enable_mmu 40 #pragma weak bl32_plat_enable_mmu 41 42 void bl31_plat_enable_mmu(uint32_t flags) 43 { 44 enable_mmu_el3(flags); 45 } 46 47 void bl32_plat_enable_mmu(uint32_t flags) 48 { 49 enable_mmu_el1(flags); 50 } 51 52 #if !ENABLE_PLAT_COMPAT 53 /* 54 * Helper function for platform_get_pos() when platform compatibility is 55 * disabled. This is to enable SPDs using the older platform API to continue 56 * to work. 57 */ 58 unsigned int platform_core_pos_helper(unsigned long mpidr) 59 { 60 int idx = plat_core_pos_by_mpidr(mpidr); 61 assert(idx >= 0); 62 return idx; 63 } 64 #endif 65 66