1 /* 2 * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <lib/xlat_tables/xlat_tables_v2.h> 8 9 #include <platform_def.h> 10 11 /* Table of regions to map using the MMU. */ 12 const mmap_region_t plat_mmap[] = { 13 /* for TF text, RO, RW */ 14 MAP_REGION_FLAT(MTK_DEV_RNG0_BASE, MTK_DEV_RNG0_SIZE, 15 MT_DEVICE | MT_RW | MT_SECURE), 16 MAP_REGION_FLAT(MTK_DEV_RNG2_BASE, MTK_DEV_RNG2_SIZE, 17 MT_DEVICE | MT_RW | MT_SECURE), 18 { 0 } 19 }; 20 21 /******************************************************************************* 22 * Macro generating the code for the function setting up the pagetables as per 23 * the platform memory map & initialize the mmu, for the given exception level 24 ******************************************************************************/ 25 void plat_configure_mmu_el3(uintptr_t total_base, 26 uintptr_t total_size, 27 uintptr_t ro_start, 28 uintptr_t ro_limit) 29 { 30 mmap_add_region(total_base, total_base, total_size, 31 MT_RW_DATA | MT_SECURE); 32 mmap_add_region(ro_start, ro_start, ro_limit - ro_start, 33 MT_CODE | MT_SECURE); 34 mmap_add(plat_mmap); 35 init_xlat_tables(); 36 enable_mmu_el3(0); 37 } 38 39 unsigned int plat_get_syscnt_freq2(void) 40 { 41 return SYS_COUNTER_FREQ_IN_TICKS; 42 } 43