1 /* 2 * Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 #include <assert.h> 7 #include <console.h> 8 #include <platform.h> 9 #include <xlat_mmu_helpers.h> 10 11 /* 12 * The following platform setup functions are weakly defined. They 13 * provide typical implementations that may be re-used by multiple 14 * platforms but may also be overridden by a platform if required. 15 */ 16 #pragma weak bl31_plat_enable_mmu 17 #pragma weak bl32_plat_enable_mmu 18 #pragma weak bl31_plat_runtime_setup 19 #if !ERROR_DEPRECATED 20 #pragma weak plat_get_syscnt_freq2 21 #endif /* ERROR_DEPRECATED */ 22 bl31_plat_enable_mmu(uint32_t flags)23void bl31_plat_enable_mmu(uint32_t flags) 24 { 25 enable_mmu_el3(flags); 26 } 27 bl32_plat_enable_mmu(uint32_t flags)28void bl32_plat_enable_mmu(uint32_t flags) 29 { 30 enable_mmu_el1(flags); 31 } 32 bl31_plat_runtime_setup(void)33void bl31_plat_runtime_setup(void) 34 { 35 /* 36 * Finish the use of console driver in BL31 so that any runtime logs 37 * from BL31 will be suppressed. 38 */ 39 console_uninit(); 40 } 41 42 #if !ENABLE_PLAT_COMPAT 43 /* 44 * Helper function for platform_get_pos() when platform compatibility is 45 * disabled. This is to enable SPDs using the older platform API to continue 46 * to work. 47 */ platform_core_pos_helper(unsigned long mpidr)48unsigned int platform_core_pos_helper(unsigned long mpidr) 49 { 50 int idx = plat_core_pos_by_mpidr(mpidr); 51 assert(idx >= 0); 52 return idx; 53 } 54 #endif 55 56 57 #if !ERROR_DEPRECATED plat_get_syscnt_freq2(void)58unsigned int plat_get_syscnt_freq2(void) 59 { 60 unsigned long long freq = plat_get_syscnt_freq(); 61 62 assert(freq >> 32 == 0); 63 64 return (unsigned int)freq; 65 } 66 #endif /* ERROR_DEPRECATED */ 67