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 <console.h> 32 #include <platform.h> 33 #include <xlat_tables.h> 34 35 /* 36 * The following platform setup functions are weakly defined. They 37 * provide typical implementations that may be re-used by multiple 38 * platforms but may also be overridden by a platform if required. 39 */ 40 #pragma weak bl31_plat_enable_mmu 41 #pragma weak bl32_plat_enable_mmu 42 #pragma weak bl31_plat_runtime_setup 43 44 void bl31_plat_enable_mmu(uint32_t flags) 45 { 46 enable_mmu_el3(flags); 47 } 48 49 void bl32_plat_enable_mmu(uint32_t flags) 50 { 51 enable_mmu_el1(flags); 52 } 53 54 void bl31_plat_runtime_setup(void) 55 { 56 /* 57 * Finish the use of console driver in BL31 so that any runtime logs 58 * from BL31 will be suppressed. 59 */ 60 console_uninit(); 61 } 62 63 #if !ENABLE_PLAT_COMPAT 64 /* 65 * Helper function for platform_get_pos() when platform compatibility is 66 * disabled. This is to enable SPDs using the older platform API to continue 67 * to work. 68 */ 69 unsigned int platform_core_pos_helper(unsigned long mpidr) 70 { 71 int idx = plat_core_pos_by_mpidr(mpidr); 72 assert(idx >= 0); 73 return idx; 74 } 75 #endif 76 77