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 <arch_helpers.h> 8 #include <assert.h> 9 #include <debug.h> 10 #include <errno.h> 11 #include <firmware_image_package.h> 12 #include <io_block.h> 13 #include <io_driver.h> 14 #include <io_fip.h> 15 #include <io_memmap.h> 16 #include <io_storage.h> 17 #include <mmc.h> 18 #include <mmio.h> 19 #include <platform_def.h> 20 #include <semihosting.h> /* For FOPEN_MODE_... */ 21 #include <string.h> 22 #include "hikey_private.h" 23 24 #define EMMC_BLOCK_SHIFT 9 25 26 /* Page 1024, since only a few pages before 2048 are used as partition table */ 27 #define SERIALNO_EMMC_OFFSET (1024 * 512) 28 29 struct plat_io_policy { 30 uintptr_t *dev_handle; 31 uintptr_t image_spec; 32 int (*check)(const uintptr_t spec); 33 }; 34 35 static const io_dev_connector_t *emmc_dev_con; 36 static uintptr_t emmc_dev_handle; 37 static const io_dev_connector_t *fip_dev_con; 38 static uintptr_t fip_dev_handle; 39 40 static int check_emmc(const uintptr_t spec); 41 static int check_fip(const uintptr_t spec); 42 43 static const io_block_spec_t emmc_fip_spec = { 44 .offset = HIKEY_FIP_BASE, 45 .length = HIKEY_FIP_MAX_SIZE, 46 }; 47 48 static const io_block_dev_spec_t emmc_dev_spec = { 49 /* It's used as temp buffer in block driver. */ 50 #ifdef IMAGE_BL1 51 .buffer = { 52 .offset = HIKEY_BL1_MMC_DATA_BASE, 53 .length = HIKEY_BL1_MMC_DATA_SIZE, 54 }, 55 #else 56 .buffer = { 57 .offset = HIKEY_MMC_DATA_BASE, 58 .length = HIKEY_MMC_DATA_SIZE, 59 }, 60 #endif 61 .ops = { 62 .read = mmc_read_blocks, 63 .write = mmc_write_blocks, 64 }, 65 .block_size = MMC_BLOCK_SIZE, 66 }; 67 68 static const io_uuid_spec_t bl31_uuid_spec = { 69 .uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31, 70 }; 71 72 static const io_uuid_spec_t bl32_uuid_spec = { 73 .uuid = UUID_SECURE_PAYLOAD_BL32, 74 }; 75 76 static const io_uuid_spec_t bl32_extra1_uuid_spec = { 77 .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA1, 78 }; 79 80 static const io_uuid_spec_t bl32_extra2_uuid_spec = { 81 .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA2, 82 }; 83 84 static const io_uuid_spec_t bl33_uuid_spec = { 85 .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33, 86 }; 87 88 static const io_uuid_spec_t scp_bl2_uuid_spec = { 89 .uuid = UUID_SCP_FIRMWARE_SCP_BL2, 90 }; 91 92 #if TRUSTED_BOARD_BOOT 93 static const io_uuid_spec_t trusted_key_cert_uuid_spec = { 94 .uuid = UUID_TRUSTED_KEY_CERT, 95 }; 96 97 static const io_uuid_spec_t scp_fw_key_cert_uuid_spec = { 98 .uuid = UUID_SCP_FW_KEY_CERT, 99 }; 100 101 static const io_uuid_spec_t soc_fw_key_cert_uuid_spec = { 102 .uuid = UUID_SOC_FW_KEY_CERT, 103 }; 104 105 static const io_uuid_spec_t tos_fw_key_cert_uuid_spec = { 106 .uuid = UUID_TRUSTED_OS_FW_KEY_CERT, 107 }; 108 109 static const io_uuid_spec_t nt_fw_key_cert_uuid_spec = { 110 .uuid = UUID_NON_TRUSTED_FW_KEY_CERT, 111 }; 112 113 static const io_uuid_spec_t scp_fw_cert_uuid_spec = { 114 .uuid = UUID_SCP_FW_CONTENT_CERT, 115 }; 116 117 static const io_uuid_spec_t soc_fw_cert_uuid_spec = { 118 .uuid = UUID_SOC_FW_CONTENT_CERT, 119 }; 120 121 static const io_uuid_spec_t tos_fw_cert_uuid_spec = { 122 .uuid = UUID_TRUSTED_OS_FW_CONTENT_CERT, 123 }; 124 125 static const io_uuid_spec_t nt_fw_cert_uuid_spec = { 126 .uuid = UUID_NON_TRUSTED_FW_CONTENT_CERT, 127 }; 128 #endif /* TRUSTED_BOARD_BOOT */ 129 130 static const struct plat_io_policy policies[] = { 131 [FIP_IMAGE_ID] = { 132 &emmc_dev_handle, 133 (uintptr_t)&emmc_fip_spec, 134 check_emmc 135 }, 136 [SCP_BL2_IMAGE_ID] = { 137 &fip_dev_handle, 138 (uintptr_t)&scp_bl2_uuid_spec, 139 check_fip 140 }, 141 [BL31_IMAGE_ID] = { 142 &fip_dev_handle, 143 (uintptr_t)&bl31_uuid_spec, 144 check_fip 145 }, 146 [BL32_IMAGE_ID] = { 147 &fip_dev_handle, 148 (uintptr_t)&bl32_uuid_spec, 149 check_fip 150 }, 151 [BL32_EXTRA1_IMAGE_ID] = { 152 &fip_dev_handle, 153 (uintptr_t)&bl32_extra1_uuid_spec, 154 check_fip 155 }, 156 [BL32_EXTRA2_IMAGE_ID] = { 157 &fip_dev_handle, 158 (uintptr_t)&bl32_extra2_uuid_spec, 159 check_fip 160 }, 161 [BL33_IMAGE_ID] = { 162 &fip_dev_handle, 163 (uintptr_t)&bl33_uuid_spec, 164 check_fip 165 }, 166 #if TRUSTED_BOARD_BOOT 167 [TRUSTED_KEY_CERT_ID] = { 168 &fip_dev_handle, 169 (uintptr_t)&trusted_key_cert_uuid_spec, 170 check_fip 171 }, 172 [SCP_FW_KEY_CERT_ID] = { 173 &fip_dev_handle, 174 (uintptr_t)&scp_fw_key_cert_uuid_spec, 175 check_fip 176 }, 177 [SOC_FW_KEY_CERT_ID] = { 178 &fip_dev_handle, 179 (uintptr_t)&soc_fw_key_cert_uuid_spec, 180 check_fip 181 }, 182 [TRUSTED_OS_FW_KEY_CERT_ID] = { 183 &fip_dev_handle, 184 (uintptr_t)&tos_fw_key_cert_uuid_spec, 185 check_fip 186 }, 187 [NON_TRUSTED_FW_KEY_CERT_ID] = { 188 &fip_dev_handle, 189 (uintptr_t)&nt_fw_key_cert_uuid_spec, 190 check_fip 191 }, 192 [SCP_FW_CONTENT_CERT_ID] = { 193 &fip_dev_handle, 194 (uintptr_t)&scp_fw_cert_uuid_spec, 195 check_fip 196 }, 197 [SOC_FW_CONTENT_CERT_ID] = { 198 &fip_dev_handle, 199 (uintptr_t)&soc_fw_cert_uuid_spec, 200 check_fip 201 }, 202 [TRUSTED_OS_FW_CONTENT_CERT_ID] = { 203 &fip_dev_handle, 204 (uintptr_t)&tos_fw_cert_uuid_spec, 205 check_fip 206 }, 207 [NON_TRUSTED_FW_CONTENT_CERT_ID] = { 208 &fip_dev_handle, 209 (uintptr_t)&nt_fw_cert_uuid_spec, 210 check_fip 211 }, 212 #endif /* TRUSTED_BOARD_BOOT */ 213 }; 214 215 static int check_emmc(const uintptr_t spec) 216 { 217 int result; 218 uintptr_t local_handle; 219 220 result = io_dev_init(emmc_dev_handle, (uintptr_t)NULL); 221 if (result == 0) { 222 result = io_open(emmc_dev_handle, spec, &local_handle); 223 if (result == 0) 224 io_close(local_handle); 225 } 226 return result; 227 } 228 229 static int check_fip(const uintptr_t spec) 230 { 231 int result; 232 uintptr_t local_image_handle; 233 234 /* See if a Firmware Image Package is available */ 235 result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID); 236 if (result == 0) { 237 result = io_open(fip_dev_handle, spec, &local_image_handle); 238 if (result == 0) { 239 VERBOSE("Using FIP\n"); 240 io_close(local_image_handle); 241 } 242 } 243 return result; 244 } 245 246 void hikey_io_setup(void) 247 { 248 int result; 249 250 result = register_io_dev_block(&emmc_dev_con); 251 assert(result == 0); 252 253 result = register_io_dev_fip(&fip_dev_con); 254 assert(result == 0); 255 256 result = io_dev_open(emmc_dev_con, (uintptr_t)&emmc_dev_spec, 257 &emmc_dev_handle); 258 assert(result == 0); 259 260 result = io_dev_open(fip_dev_con, (uintptr_t)NULL, &fip_dev_handle); 261 assert(result == 0); 262 263 /* Ignore improbable errors in release builds */ 264 (void)result; 265 } 266 267 /* Return an IO device handle and specification which can be used to access 268 * an image. Use this to enforce platform load policy 269 */ 270 int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, 271 uintptr_t *image_spec) 272 { 273 int result; 274 const struct plat_io_policy *policy; 275 276 assert(image_id < ARRAY_SIZE(policies)); 277 278 policy = &policies[image_id]; 279 result = policy->check(policy->image_spec); 280 assert(result == 0); 281 282 *image_spec = policy->image_spec; 283 *dev_handle = *(policy->dev_handle); 284 285 return result; 286 } 287