| Jiafei Pan | 541c914 | 2021-10-21 16:42:34 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-2021 NXP |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <common/debug.h> |
| 8 | #include <plat_tzc380.h> |
| 9 | |
| 10 | #pragma weak populate_tzc380_reg_list |
| 11 | |
| 12 | #ifdef DEFAULT_TZASC_CONFIG |
| 13 | /* |
| 14 | * Typical Memory map of DRAM0 |
| 15 | * |-----------NXP_NS_DRAM_ADDR ( = NXP_DRAM0_ADDR)----------| |
| 16 | * | | |
| 17 | * | | |
| 18 | * | Non-SECURE REGION | |
| 19 | * | | |
| 20 | * | | |
| 21 | * | | |
| 22 | * |------- (NXP_NS_DRAM_ADDR + NXP_NS_DRAM_SIZE - 1) -------| |
| 23 | * |-----------------NXP_SECURE_DRAM_ADDR--------------------| |
| 24 | * | | |
| 25 | * | | |
| 26 | * | | |
| 27 | * | SECURE REGION (= 64MB) | |
| 28 | * | | |
| 29 | * | | |
| 30 | * | | |
| 31 | * |--- (NXP_SECURE_DRAM_ADDR + NXP_SECURE_DRAM_SIZE - 1)----| |
| 32 | * |-----------------NXP_SP_SHRD_DRAM_ADDR-------------------| |
| 33 | * | | |
| 34 | * | Secure EL1 Payload SHARED REGION (= 2MB) | |
| 35 | * | | |
| 36 | * |-----------(NXP_DRAM0_ADDR + NXP_DRAM0_SIZE - 1)---------| |
| 37 | * |
| 38 | * |
| 39 | * |
| 40 | * Typical Memory map of DRAM1 |
| 41 | * |---------------------NXP_DRAM1_ADDR----------------------| |
| 42 | * | | |
| 43 | * | | |
| 44 | * | Non-SECURE REGION | |
| 45 | * | | |
| 46 | * | | |
| 47 | * |---(NXP_DRAM1_ADDR + Dynamically calculated Size - 1) ---| |
| 48 | * |
| 49 | * |
| 50 | * Typical Memory map of DRAM2 |
| 51 | * |---------------------NXP_DRAM2_ADDR----------------------| |
| 52 | * | | |
| 53 | * | | |
| 54 | * | Non-SECURE REGION | |
| 55 | * | | |
| 56 | * | | |
| 57 | * |---(NXP_DRAM2_ADDR + Dynamically calculated Size - 1) ---| |
| 58 | */ |
| 59 | |
| 60 | /***************************************************************************** |
| 61 | * This function sets up access permissions on memory regions |
| 62 | * |
| 63 | * Input: |
| 64 | * tzc380_reg_list : TZC380 Region List |
| 65 | * dram_idx : DRAM index |
| 66 | * list_idx : TZC380 Region List Index |
| 67 | * dram_start_addr : Start address of DRAM at dram_idx. |
| 68 | * dram_size : Size of DRAM at dram_idx. |
| 69 | * secure_dram_sz : Secure DRAM Size |
| 70 | * shrd_dram_sz : Shared DRAM Size |
| 71 | * |
| 72 | * Out: |
| 73 | * list_idx : last populated index + 1 |
| 74 | * |
| 75 | ****************************************************************************/ |
| 76 | int populate_tzc380_reg_list(struct tzc380_reg *tzc380_reg_list, |
| 77 | int dram_idx, int list_idx, |
| 78 | uint64_t dram_start_addr, |
| 79 | uint64_t dram_size, |
| 80 | uint32_t secure_dram_sz, |
| 81 | uint32_t shrd_dram_sz) |
| 82 | { |
| 83 | /* Region 0: Default region marked as Non-Secure */ |
| 84 | if (list_idx == 0) { |
| 85 | tzc380_reg_list[list_idx].secure = TZC_ATTR_SP_NS_RW; |
| 86 | tzc380_reg_list[list_idx].enabled = TZC_ATTR_REGION_DISABLE; |
| 87 | tzc380_reg_list[list_idx].addr = UL(0x0); |
| 88 | tzc380_reg_list[list_idx].size = 0x0; |
| 89 | tzc380_reg_list[list_idx].sub_mask = 0x0; /* all enabled */ |
| 90 | list_idx++; |
| 91 | } |
| 92 | /* Continue with list entries for index > 0 */ |
| 93 | if (dram_idx == 0) { |
| 94 | /* TZC Region 1 on DRAM0 for Secure Memory*/ |
| 95 | tzc380_reg_list[list_idx].secure = TZC_ATTR_SP_S_RW; |
| 96 | tzc380_reg_list[list_idx].enabled = TZC_ATTR_REGION_ENABLE; |
| 97 | tzc380_reg_list[list_idx].addr = dram_start_addr + dram_size; |
| 98 | tzc380_reg_list[list_idx].size = secure_dram_sz; |
| 99 | tzc380_reg_list[list_idx].sub_mask = 0x0; /* all enabled */ |
| 100 | list_idx++; |
| 101 | |
| 102 | /* TZC Region 2 on DRAM0 for Shared Memory*/ |
| 103 | tzc380_reg_list[list_idx].secure = TZC_ATTR_SP_S_RW; |
| 104 | tzc380_reg_list[list_idx].enabled = TZC_ATTR_REGION_ENABLE; |
| 105 | tzc380_reg_list[list_idx].addr = dram_start_addr + dram_size + secure_dram_sz; |
| 106 | tzc380_reg_list[list_idx].size = shrd_dram_sz; |
| 107 | tzc380_reg_list[list_idx].sub_mask = 0x0; /* all enabled */ |
| 108 | list_idx++; |
| 109 | |
| 110 | } |
| 111 | |
| 112 | return list_idx; |
| 113 | } |
| 114 | #else |
| 115 | int populate_tzc380_reg_list(struct tzc380_reg *tzc380_reg_list, |
| 116 | int dram_idx, int list_idx, |
| 117 | uint64_t dram_start_addr, |
| 118 | uint64_t dram_size, |
| 119 | uint32_t secure_dram_sz, |
| 120 | uint32_t shrd_dram_sz) |
| 121 | { |
| 122 | ERROR("tzc380_reg_list used is not a default list\n"); |
| 123 | ERROR("%s needs to be over-written.\n", __func__); |
| 124 | return 0; |
| 125 | } |
| 126 | #endif /* DEFAULT_TZASC_CONFIG */ |
| 127 | |
| 128 | |
| 129 | void mem_access_setup(uintptr_t base, uint32_t total_regions, |
| 130 | struct tzc380_reg *tzc380_reg_list) |
| 131 | { |
| 132 | uint32_t indx = 0; |
| 133 | unsigned int attr_value; |
| 134 | |
| 135 | VERBOSE("Configuring TrustZone Controller tzc380\n"); |
| 136 | |
| 137 | tzc380_init(base); |
| 138 | |
| 139 | tzc380_set_action(TZC_ACTION_NONE); |
| 140 | |
| 141 | for (indx = 0; indx < total_regions; indx++) { |
| 142 | attr_value = tzc380_reg_list[indx].secure | |
| 143 | TZC_ATTR_SUBREG_DIS(tzc380_reg_list[indx].sub_mask) | |
| 144 | TZC_ATTR_REGION_SIZE(tzc380_reg_list[indx].size) | |
| 145 | tzc380_reg_list[indx].enabled; |
| 146 | |
| 147 | tzc380_configure_region(indx, tzc380_reg_list[indx].addr, |
| 148 | attr_value); |
| 149 | } |
| 150 | |
| 151 | tzc380_set_action(TZC_ACTION_ERR); |
| 152 | } |