1 /* 2 * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <arch_helpers.h> 10 #include <common/bl_common.h> 11 #include <common/debug.h> 12 #include <lib/mmio.h> 13 #include <lib/xlat_tables/xlat_tables.h> 14 #include <plat/common/platform.h> 15 16 #include <hikey_def.h> 17 #include <hikey_layout.h> 18 19 #define MAP_DDR MAP_REGION_FLAT(DDR_BASE, \ 20 DDR_SIZE - DDR_SEC_SIZE, \ 21 MT_DEVICE | MT_RW | MT_NS) 22 23 #define MAP_DEVICE MAP_REGION_FLAT(DEVICE_BASE, \ 24 DEVICE_SIZE, \ 25 MT_DEVICE | MT_RW | MT_SECURE) 26 27 #define MAP_TSP_MEM MAP_REGION_FLAT(TSP_SEC_MEM_BASE, \ 28 TSP_SEC_MEM_SIZE, \ 29 MT_MEMORY | MT_RW | MT_SECURE) 30 31 #define MAP_ROM_PARAM MAP_REGION_FLAT(XG2RAM0_BASE, \ 32 BL1_XG2RAM0_OFFSET, \ 33 MT_DEVICE | MT_RO | MT_SECURE) 34 35 #define MAP_SRAM MAP_REGION_FLAT(SRAM_BASE, \ 36 SRAM_SIZE, \ 37 MT_DEVICE | MT_RW | MT_SECURE) 38 39 /* 40 * BL1 needs to access the areas of MMC_SRAM. 41 * BL1 loads BL2 from eMMC into SRAM before DDR initialized. 42 */ 43 #define MAP_MMC_SRAM MAP_REGION_FLAT(HIKEY_BL1_MMC_DESC_BASE, \ 44 HIKEY_BL1_MMC_DESC_SIZE + \ 45 HIKEY_BL1_MMC_DATA_SIZE, \ 46 MT_DEVICE | MT_RW | MT_SECURE) 47 48 /* 49 * Table of regions for different BL stages to map using the MMU. 50 * This doesn't include Trusted RAM as the 'mem_layout' argument passed to 51 * hikey_init_mmu_elx() will give the available subset of that, 52 */ 53 #ifdef IMAGE_BL1 54 static const mmap_region_t hikey_mmap[] = { 55 MAP_DEVICE, 56 MAP_ROM_PARAM, 57 MAP_MMC_SRAM, 58 {0} 59 }; 60 #endif 61 62 #ifdef IMAGE_BL2 63 static const mmap_region_t hikey_mmap[] = { 64 MAP_DDR, 65 MAP_DEVICE, 66 MAP_TSP_MEM, 67 MAP_SRAM, 68 {0} 69 }; 70 #endif 71 72 #ifdef IMAGE_BL31 73 static const mmap_region_t hikey_mmap[] = { 74 MAP_DEVICE, 75 MAP_SRAM, 76 MAP_TSP_MEM, 77 {0} 78 }; 79 #endif 80 81 #ifdef IMAGE_BL32 82 static const mmap_region_t hikey_mmap[] = { 83 MAP_DEVICE, 84 MAP_DDR, 85 {0} 86 }; 87 #endif 88 89 /* 90 * Macro generating the code for the function setting up the pagetables as per 91 * the platform memory map & initialize the mmu, for the given exception level 92 */ 93 #define HIKEY_CONFIGURE_MMU_EL(_el) \ 94 void hikey_init_mmu_el##_el(unsigned long total_base, \ 95 unsigned long total_size, \ 96 unsigned long ro_start, \ 97 unsigned long ro_limit, \ 98 unsigned long coh_start, \ 99 unsigned long coh_limit) \ 100 { \ 101 mmap_add_region(total_base, total_base, \ 102 total_size, \ 103 MT_MEMORY | MT_RW | MT_SECURE); \ 104 mmap_add_region(ro_start, ro_start, \ 105 ro_limit - ro_start, \ 106 MT_MEMORY | MT_RO | MT_SECURE); \ 107 mmap_add_region(coh_start, coh_start, \ 108 coh_limit - coh_start, \ 109 MT_DEVICE | MT_RW | MT_SECURE); \ 110 mmap_add(hikey_mmap); \ 111 init_xlat_tables(); \ 112 \ 113 enable_mmu_el##_el(0); \ 114 } 115 116 /* Define EL1 and EL3 variants of the function initialising the MMU */ 117 HIKEY_CONFIGURE_MMU_EL(1) 118 HIKEY_CONFIGURE_MMU_EL(3) 119 120 unsigned long plat_get_ns_image_entrypoint(void) 121 { 122 return HIKEY_NS_IMAGE_OFFSET; 123 } 124 125 unsigned int plat_get_syscnt_freq2(void) 126 { 127 return 1200000; 128 } 129