1 /* 2 * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <common/debug.h> 10 #include <drivers/arm/cci.h> 11 #include <drivers/arm/ccn.h> 12 #include <drivers/arm/gicv2.h> 13 #include <drivers/arm/sp804_delay_timer.h> 14 #include <drivers/generic_delay_timer.h> 15 #include <lib/mmio.h> 16 #include <lib/xlat_tables/xlat_tables_compat.h> 17 #include <plat/arm/common/arm_config.h> 18 #include <plat/arm/common/plat_arm.h> 19 #include <plat/common/platform.h> 20 #include <platform_def.h> 21 #include <services/spm_mm_partition.h> 22 23 #include "fvp_private.h" 24 25 /* Defines for GIC Driver build time selection */ 26 #define FVP_GICV2 1 27 #define FVP_GICV3 2 28 29 /******************************************************************************* 30 * arm_config holds the characteristics of the differences between the three FVP 31 * platforms (Base, A53_A57 & Foundation). It will be populated during cold boot 32 * at each boot stage by the primary before enabling the MMU (to allow 33 * interconnect configuration) & used thereafter. Each BL will have its own copy 34 * to allow independent operation. 35 ******************************************************************************/ 36 arm_config_t arm_config; 37 38 #define MAP_DEVICE0 MAP_REGION_FLAT(DEVICE0_BASE, \ 39 DEVICE0_SIZE, \ 40 MT_DEVICE | MT_RW | MT_SECURE) 41 42 #define MAP_DEVICE1 MAP_REGION_FLAT(DEVICE1_BASE, \ 43 DEVICE1_SIZE, \ 44 MT_DEVICE | MT_RW | MT_SECURE) 45 46 /* 47 * Need to be mapped with write permissions in order to set a new non-volatile 48 * counter value. 49 */ 50 #define MAP_DEVICE2 MAP_REGION_FLAT(DEVICE2_BASE, \ 51 DEVICE2_SIZE, \ 52 MT_DEVICE | MT_RW | MT_SECURE) 53 54 /* 55 * Table of memory regions for various BL stages to map using the MMU. 56 * This doesn't include Trusted SRAM as setup_page_tables() already takes care 57 * of mapping it. 58 * 59 * The flash needs to be mapped as writable in order to erase the FIP's Table of 60 * Contents in case of unrecoverable error (see plat_error_handler()). 61 */ 62 #ifdef IMAGE_BL1 63 const mmap_region_t plat_arm_mmap[] = { 64 ARM_MAP_SHARED_RAM, 65 V2M_MAP_FLASH0_RW, 66 V2M_MAP_IOFPGA, 67 MAP_DEVICE0, 68 MAP_DEVICE1, 69 #if TRUSTED_BOARD_BOOT 70 /* To access the Root of Trust Public Key registers. */ 71 MAP_DEVICE2, 72 /* Map DRAM to authenticate NS_BL2U image. */ 73 ARM_MAP_NS_DRAM1, 74 #endif 75 {0} 76 }; 77 #endif 78 #ifdef IMAGE_BL2 79 const mmap_region_t plat_arm_mmap[] = { 80 ARM_MAP_SHARED_RAM, 81 V2M_MAP_FLASH0_RW, 82 V2M_MAP_IOFPGA, 83 MAP_DEVICE0, 84 MAP_DEVICE1, 85 ARM_MAP_NS_DRAM1, 86 #ifdef __aarch64__ 87 ARM_MAP_DRAM2, 88 #endif 89 #ifdef SPD_tspd 90 ARM_MAP_TSP_SEC_MEM, 91 #endif 92 #if TRUSTED_BOARD_BOOT 93 /* To access the Root of Trust Public Key registers. */ 94 MAP_DEVICE2, 95 #if !BL2_AT_EL3 96 ARM_MAP_BL1_RW, 97 #endif 98 #endif /* TRUSTED_BOARD_BOOT */ 99 #if SPM_MM 100 ARM_SP_IMAGE_MMAP, 101 #endif 102 #if ARM_BL31_IN_DRAM 103 ARM_MAP_BL31_SEC_DRAM, 104 #endif 105 #ifdef SPD_opteed 106 ARM_MAP_OPTEE_CORE_MEM, 107 ARM_OPTEE_PAGEABLE_LOAD_MEM, 108 #endif 109 {0} 110 }; 111 #endif 112 #ifdef IMAGE_BL2U 113 const mmap_region_t plat_arm_mmap[] = { 114 MAP_DEVICE0, 115 V2M_MAP_IOFPGA, 116 {0} 117 }; 118 #endif 119 #ifdef IMAGE_BL31 120 const mmap_region_t plat_arm_mmap[] = { 121 ARM_MAP_SHARED_RAM, 122 #if USE_DEBUGFS 123 /* Required by devfip, can be removed if devfip is not used */ 124 V2M_MAP_FLASH0_RW, 125 #endif /* USE_DEBUGFS */ 126 ARM_MAP_EL3_TZC_DRAM, 127 V2M_MAP_IOFPGA, 128 MAP_DEVICE0, 129 MAP_DEVICE1, 130 ARM_V2M_MAP_MEM_PROTECT, 131 #if SPM_MM 132 ARM_SPM_BUF_EL3_MMAP, 133 #endif 134 {0} 135 }; 136 137 #if defined(IMAGE_BL31) && SPM_MM 138 const mmap_region_t plat_arm_secure_partition_mmap[] = { 139 V2M_MAP_IOFPGA_EL0, /* for the UART */ 140 MAP_REGION_FLAT(DEVICE0_BASE, \ 141 DEVICE0_SIZE, \ 142 MT_DEVICE | MT_RO | MT_SECURE | MT_USER), 143 ARM_SP_IMAGE_MMAP, 144 ARM_SP_IMAGE_NS_BUF_MMAP, 145 ARM_SP_IMAGE_RW_MMAP, 146 ARM_SPM_BUF_EL0_MMAP, 147 {0} 148 }; 149 #endif 150 #endif 151 #ifdef IMAGE_BL32 152 const mmap_region_t plat_arm_mmap[] = { 153 #ifndef __aarch64__ 154 ARM_MAP_SHARED_RAM, 155 ARM_V2M_MAP_MEM_PROTECT, 156 #endif 157 V2M_MAP_IOFPGA, 158 MAP_DEVICE0, 159 MAP_DEVICE1, 160 {0} 161 }; 162 #endif 163 164 ARM_CASSERT_MMAP 165 166 #if FVP_INTERCONNECT_DRIVER != FVP_CCN 167 static const int fvp_cci400_map[] = { 168 PLAT_FVP_CCI400_CLUS0_SL_PORT, 169 PLAT_FVP_CCI400_CLUS1_SL_PORT, 170 }; 171 172 static const int fvp_cci5xx_map[] = { 173 PLAT_FVP_CCI5XX_CLUS0_SL_PORT, 174 PLAT_FVP_CCI5XX_CLUS1_SL_PORT, 175 }; 176 177 static unsigned int get_interconnect_master(void) 178 { 179 unsigned int master; 180 u_register_t mpidr; 181 182 mpidr = read_mpidr_el1(); 183 master = ((arm_config.flags & ARM_CONFIG_FVP_SHIFTED_AFF) != 0U) ? 184 MPIDR_AFFLVL2_VAL(mpidr) : MPIDR_AFFLVL1_VAL(mpidr); 185 186 assert(master < FVP_CLUSTER_COUNT); 187 return master; 188 } 189 #endif 190 191 #if defined(IMAGE_BL31) && SPM_MM 192 /* 193 * Boot information passed to a secure partition during initialisation. Linear 194 * indices in MP information will be filled at runtime. 195 */ 196 static spm_mm_mp_info_t sp_mp_info[] = { 197 [0] = {0x80000000, 0}, 198 [1] = {0x80000001, 0}, 199 [2] = {0x80000002, 0}, 200 [3] = {0x80000003, 0}, 201 [4] = {0x80000100, 0}, 202 [5] = {0x80000101, 0}, 203 [6] = {0x80000102, 0}, 204 [7] = {0x80000103, 0}, 205 }; 206 207 const spm_mm_boot_info_t plat_arm_secure_partition_boot_info = { 208 .h.type = PARAM_SP_IMAGE_BOOT_INFO, 209 .h.version = VERSION_1, 210 .h.size = sizeof(spm_mm_boot_info_t), 211 .h.attr = 0, 212 .sp_mem_base = ARM_SP_IMAGE_BASE, 213 .sp_mem_limit = ARM_SP_IMAGE_LIMIT, 214 .sp_image_base = ARM_SP_IMAGE_BASE, 215 .sp_stack_base = PLAT_SP_IMAGE_STACK_BASE, 216 .sp_heap_base = ARM_SP_IMAGE_HEAP_BASE, 217 .sp_ns_comm_buf_base = PLAT_SP_IMAGE_NS_BUF_BASE, 218 .sp_shared_buf_base = PLAT_SPM_BUF_BASE, 219 .sp_image_size = ARM_SP_IMAGE_SIZE, 220 .sp_pcpu_stack_size = PLAT_SP_IMAGE_STACK_PCPU_SIZE, 221 .sp_heap_size = ARM_SP_IMAGE_HEAP_SIZE, 222 .sp_ns_comm_buf_size = PLAT_SP_IMAGE_NS_BUF_SIZE, 223 .sp_shared_buf_size = PLAT_SPM_BUF_SIZE, 224 .num_sp_mem_regions = ARM_SP_IMAGE_NUM_MEM_REGIONS, 225 .num_cpus = PLATFORM_CORE_COUNT, 226 .mp_info = &sp_mp_info[0], 227 }; 228 229 const struct mmap_region *plat_get_secure_partition_mmap(void *cookie) 230 { 231 return plat_arm_secure_partition_mmap; 232 } 233 234 const struct spm_mm_boot_info *plat_get_secure_partition_boot_info( 235 void *cookie) 236 { 237 return &plat_arm_secure_partition_boot_info; 238 } 239 #endif 240 241 /******************************************************************************* 242 * A single boot loader stack is expected to work on both the Foundation FVP 243 * models and the two flavours of the Base FVP models (AEMv8 & Cortex). The 244 * SYS_ID register provides a mechanism for detecting the differences between 245 * these platforms. This information is stored in a per-BL array to allow the 246 * code to take the correct path.Per BL platform configuration. 247 ******************************************************************************/ 248 void __init fvp_config_setup(void) 249 { 250 unsigned int rev, hbi, bld, arch, sys_id; 251 252 sys_id = mmio_read_32(V2M_SYSREGS_BASE + V2M_SYS_ID); 253 rev = (sys_id >> V2M_SYS_ID_REV_SHIFT) & V2M_SYS_ID_REV_MASK; 254 hbi = (sys_id >> V2M_SYS_ID_HBI_SHIFT) & V2M_SYS_ID_HBI_MASK; 255 bld = (sys_id >> V2M_SYS_ID_BLD_SHIFT) & V2M_SYS_ID_BLD_MASK; 256 arch = (sys_id >> V2M_SYS_ID_ARCH_SHIFT) & V2M_SYS_ID_ARCH_MASK; 257 258 if (arch != ARCH_MODEL) { 259 ERROR("This firmware is for FVP models\n"); 260 panic(); 261 } 262 263 /* 264 * The build field in the SYS_ID tells which variant of the GIC 265 * memory is implemented by the model. 266 */ 267 switch (bld) { 268 case BLD_GIC_VE_MMAP: 269 ERROR("Legacy Versatile Express memory map for GIC peripheral" 270 " is not supported\n"); 271 panic(); 272 break; 273 case BLD_GIC_A53A57_MMAP: 274 break; 275 default: 276 ERROR("Unsupported board build %x\n", bld); 277 panic(); 278 } 279 280 /* 281 * The hbi field in the SYS_ID is 0x020 for the Base FVP & 0x010 282 * for the Foundation FVP. 283 */ 284 switch (hbi) { 285 case HBI_FOUNDATION_FVP: 286 arm_config.flags = 0; 287 288 /* 289 * Check for supported revisions of Foundation FVP 290 * Allow future revisions to run but emit warning diagnostic 291 */ 292 switch (rev) { 293 case REV_FOUNDATION_FVP_V2_0: 294 case REV_FOUNDATION_FVP_V2_1: 295 case REV_FOUNDATION_FVP_v9_1: 296 case REV_FOUNDATION_FVP_v9_6: 297 break; 298 default: 299 WARN("Unrecognized Foundation FVP revision %x\n", rev); 300 break; 301 } 302 break; 303 case HBI_BASE_FVP: 304 arm_config.flags |= (ARM_CONFIG_BASE_MMAP | ARM_CONFIG_HAS_TZC); 305 306 /* 307 * Check for supported revisions 308 * Allow future revisions to run but emit warning diagnostic 309 */ 310 switch (rev) { 311 case REV_BASE_FVP_V0: 312 arm_config.flags |= ARM_CONFIG_FVP_HAS_CCI400; 313 break; 314 case REV_BASE_FVP_REVC: 315 arm_config.flags |= (ARM_CONFIG_FVP_HAS_SMMUV3 | 316 ARM_CONFIG_FVP_HAS_CCI5XX); 317 break; 318 default: 319 WARN("Unrecognized Base FVP revision %x\n", rev); 320 break; 321 } 322 break; 323 default: 324 ERROR("Unsupported board HBI number 0x%x\n", hbi); 325 panic(); 326 } 327 328 /* 329 * We assume that the presence of MT bit, and therefore shifted 330 * affinities, is uniform across the platform: either all CPUs, or no 331 * CPUs implement it. 332 */ 333 if ((read_mpidr_el1() & MPIDR_MT_MASK) != 0U) 334 arm_config.flags |= ARM_CONFIG_FVP_SHIFTED_AFF; 335 } 336 337 338 void __init fvp_interconnect_init(void) 339 { 340 #if FVP_INTERCONNECT_DRIVER == FVP_CCN 341 if (ccn_get_part0_id(PLAT_ARM_CCN_BASE) != CCN_502_PART0_ID) { 342 ERROR("Unrecognized CCN variant detected. Only CCN-502 is supported"); 343 panic(); 344 } 345 346 plat_arm_interconnect_init(); 347 #else 348 uintptr_t cci_base = 0U; 349 const int *cci_map = NULL; 350 unsigned int map_size = 0U; 351 352 /* Initialize the right interconnect */ 353 if ((arm_config.flags & ARM_CONFIG_FVP_HAS_CCI5XX) != 0U) { 354 cci_base = PLAT_FVP_CCI5XX_BASE; 355 cci_map = fvp_cci5xx_map; 356 map_size = ARRAY_SIZE(fvp_cci5xx_map); 357 } else if ((arm_config.flags & ARM_CONFIG_FVP_HAS_CCI400) != 0U) { 358 cci_base = PLAT_FVP_CCI400_BASE; 359 cci_map = fvp_cci400_map; 360 map_size = ARRAY_SIZE(fvp_cci400_map); 361 } else { 362 return; 363 } 364 365 assert(cci_base != 0U); 366 assert(cci_map != NULL); 367 cci_init(cci_base, cci_map, map_size); 368 #endif 369 } 370 371 void fvp_interconnect_enable(void) 372 { 373 #if FVP_INTERCONNECT_DRIVER == FVP_CCN 374 plat_arm_interconnect_enter_coherency(); 375 #else 376 unsigned int master; 377 378 if ((arm_config.flags & (ARM_CONFIG_FVP_HAS_CCI400 | 379 ARM_CONFIG_FVP_HAS_CCI5XX)) != 0U) { 380 master = get_interconnect_master(); 381 cci_enable_snoop_dvm_reqs(master); 382 } 383 #endif 384 } 385 386 void fvp_interconnect_disable(void) 387 { 388 #if FVP_INTERCONNECT_DRIVER == FVP_CCN 389 plat_arm_interconnect_exit_coherency(); 390 #else 391 unsigned int master; 392 393 if ((arm_config.flags & (ARM_CONFIG_FVP_HAS_CCI400 | 394 ARM_CONFIG_FVP_HAS_CCI5XX)) != 0U) { 395 master = get_interconnect_master(); 396 cci_disable_snoop_dvm_reqs(master); 397 } 398 #endif 399 } 400 401 #if TRUSTED_BOARD_BOOT 402 int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size) 403 { 404 assert(heap_addr != NULL); 405 assert(heap_size != NULL); 406 407 return arm_get_mbedtls_heap(heap_addr, heap_size); 408 } 409 #endif 410 411 void fvp_timer_init(void) 412 { 413 #if FVP_USE_SP804_TIMER 414 /* Enable the clock override for SP804 timer 0, which means that no 415 * clock dividers are applied and the raw (35MHz) clock will be used. 416 */ 417 mmio_write_32(V2M_SP810_BASE, FVP_SP810_CTRL_TIM0_OV); 418 419 /* Initialize delay timer driver using SP804 dual timer 0 */ 420 sp804_timer_init(V2M_SP804_TIMER0_BASE, 421 SP804_TIMER_CLKMULT, SP804_TIMER_CLKDIV); 422 #else 423 generic_delay_timer_init(); 424 425 /* Enable System level generic timer */ 426 mmio_write_32(ARM_SYS_CNTCTL_BASE + CNTCR_OFF, 427 CNTCR_FCREQ(0U) | CNTCR_EN); 428 #endif /* FVP_USE_SP804_TIMER */ 429 } 430