1 /* 2 * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved. 3 * Copyright (c) 2020, NVIDIA Corporation. All rights reserved. 4 * 5 * SPDX-License-Identifier: BSD-3-Clause 6 */ 7 8 #include <assert.h> 9 10 #include <arch_helpers.h> 11 #include <bl31/bl31.h> 12 #include <bl31/interrupt_mgmt.h> 13 #include <common/bl_common.h> 14 #include <common/debug.h> 15 #include <common/ep_info.h> 16 #include <common/interrupt_props.h> 17 #include <context.h> 18 #include <cortex_a57.h> 19 #include <denver.h> 20 #include <drivers/arm/gic_common.h> 21 #include <drivers/arm/gicv2.h> 22 #include <drivers/console.h> 23 #include <lib/el3_runtime/context_mgmt.h> 24 #include <lib/utils.h> 25 #include <lib/xlat_tables/xlat_tables_v2.h> 26 #include <plat/common/platform.h> 27 28 #include <mce.h> 29 #include <tegra_def.h> 30 #include <tegra_platform.h> 31 #include <tegra_private.h> 32 33 extern void memcpy16(void *dest, const void *src, unsigned int length); 34 35 /******************************************************************************* 36 * Tegra186 CPU numbers in cluster #0 37 ******************************************************************************* 38 */ 39 #define TEGRA186_CLUSTER0_CORE2 2U 40 #define TEGRA186_CLUSTER0_CORE3 3U 41 42 /******************************************************************************* 43 * The Tegra power domain tree has a single system level power domain i.e. a 44 * single root node. The first entry in the power domain descriptor specifies 45 * the number of power domains at the highest power level. 46 ******************************************************************************* 47 */ 48 static const uint8_t tegra_power_domain_tree_desc[] = { 49 /* No of root nodes */ 50 1, 51 /* No of clusters */ 52 PLATFORM_CLUSTER_COUNT, 53 /* No of CPU cores - cluster0 */ 54 PLATFORM_MAX_CPUS_PER_CLUSTER, 55 /* No of CPU cores - cluster1 */ 56 PLATFORM_MAX_CPUS_PER_CLUSTER 57 }; 58 59 /******************************************************************************* 60 * This function returns the Tegra default topology tree information. 61 ******************************************************************************/ 62 const uint8_t *plat_get_power_domain_tree_desc(void) 63 { 64 return tegra_power_domain_tree_desc; 65 } 66 67 /* 68 * Table of regions to map using the MMU. 69 */ 70 static const mmap_region_t tegra_mmap[] = { 71 MAP_REGION_FLAT(TEGRA_MISC_BASE, 0x10000U, /* 64KB */ 72 MT_DEVICE | MT_RW | MT_SECURE), 73 MAP_REGION_FLAT(TEGRA_TSA_BASE, 0x20000U, /* 128KB */ 74 MT_DEVICE | MT_RW | MT_SECURE), 75 MAP_REGION_FLAT(TEGRA_MC_STREAMID_BASE, 0x10000U, /* 64KB */ 76 MT_DEVICE | MT_RW | MT_SECURE), 77 MAP_REGION_FLAT(TEGRA_MC_BASE, 0x10000U, /* 64KB */ 78 MT_DEVICE | MT_RW | MT_SECURE), 79 MAP_REGION_FLAT(TEGRA_UARTA_BASE, 0x20000U, /* 128KB - UART A, B*/ 80 MT_DEVICE | MT_RW | MT_SECURE), 81 MAP_REGION_FLAT(TEGRA_UARTC_BASE, 0x20000U, /* 128KB - UART C, G */ 82 MT_DEVICE | MT_RW | MT_SECURE), 83 MAP_REGION_FLAT(TEGRA_UARTD_BASE, 0x30000U, /* 192KB - UART D, E, F */ 84 MT_DEVICE | MT_RW | MT_SECURE), 85 MAP_REGION_FLAT(TEGRA_FUSE_BASE, 0x10000U, /* 64KB */ 86 MT_DEVICE | MT_RW | MT_SECURE), 87 MAP_REGION_FLAT(TEGRA_GICD_BASE, 0x20000U, /* 128KB */ 88 MT_DEVICE | MT_RW | MT_SECURE), 89 MAP_REGION_FLAT(TEGRA_SE0_BASE, 0x10000U, /* 64KB */ 90 MT_DEVICE | MT_RW | MT_SECURE), 91 MAP_REGION_FLAT(TEGRA_PKA1_BASE, 0x10000U, /* 64KB */ 92 MT_DEVICE | MT_RW | MT_SECURE), 93 MAP_REGION_FLAT(TEGRA_RNG1_BASE, 0x10000U, /* 64KB */ 94 MT_DEVICE | MT_RW | MT_SECURE), 95 MAP_REGION_FLAT(TEGRA_CAR_RESET_BASE, 0x10000U, /* 64KB */ 96 MT_DEVICE | MT_RW | MT_SECURE), 97 MAP_REGION_FLAT(TEGRA_PMC_BASE, 0x40000U, /* 256KB */ 98 MT_DEVICE | MT_RW | MT_SECURE), 99 MAP_REGION_FLAT(TEGRA_TMRUS_BASE, 0x1000U, /* 4KB */ 100 MT_DEVICE | MT_RO | MT_SECURE), 101 MAP_REGION_FLAT(TEGRA_SCRATCH_BASE, 0x10000U, /* 64KB */ 102 MT_DEVICE | MT_RW | MT_SECURE), 103 MAP_REGION_FLAT(TEGRA_MMCRAB_BASE, 0x60000U, /* 384KB */ 104 MT_DEVICE | MT_RW | MT_SECURE), 105 MAP_REGION_FLAT(TEGRA_ARM_ACTMON_CTR_BASE, 0x20000U, /* 128KB - ARM/Denver */ 106 MT_DEVICE | MT_RW | MT_SECURE), 107 MAP_REGION_FLAT(TEGRA_SMMU0_BASE, 0x1000000U, /* 64KB */ 108 MT_DEVICE | MT_RW | MT_SECURE), 109 {0} 110 }; 111 112 /******************************************************************************* 113 * Set up the pagetables as per the platform memory map & initialize the MMU 114 ******************************************************************************/ 115 const mmap_region_t *plat_get_mmio_map(void) 116 { 117 /* MMIO space */ 118 return tegra_mmap; 119 } 120 121 /******************************************************************************* 122 * Handler to get the System Counter Frequency 123 ******************************************************************************/ 124 uint32_t plat_get_syscnt_freq2(void) 125 { 126 return 31250000; 127 } 128 129 /******************************************************************************* 130 * Maximum supported UART controllers 131 ******************************************************************************/ 132 #define TEGRA186_MAX_UART_PORTS 7 133 134 /******************************************************************************* 135 * This variable holds the UART port base addresses 136 ******************************************************************************/ 137 static uint32_t tegra186_uart_addresses[TEGRA186_MAX_UART_PORTS + 1] = { 138 0, /* undefined - treated as an error case */ 139 TEGRA_UARTA_BASE, 140 TEGRA_UARTB_BASE, 141 TEGRA_UARTC_BASE, 142 TEGRA_UARTD_BASE, 143 TEGRA_UARTE_BASE, 144 TEGRA_UARTF_BASE, 145 TEGRA_UARTG_BASE, 146 }; 147 148 /******************************************************************************* 149 * Enable console corresponding to the console ID 150 ******************************************************************************/ 151 void plat_enable_console(int32_t id) 152 { 153 static console_16550_t uart_console; 154 uint32_t console_clock; 155 156 if ((id > 0) && (id < TEGRA186_MAX_UART_PORTS)) { 157 /* 158 * Reference clock used by the FPGAs is a lot slower. 159 */ 160 if (tegra_platform_is_fpga()) { 161 console_clock = TEGRA_BOOT_UART_CLK_13_MHZ; 162 } else { 163 console_clock = TEGRA_BOOT_UART_CLK_408_MHZ; 164 } 165 166 (void)console_16550_register(tegra186_uart_addresses[id], 167 console_clock, 168 TEGRA_CONSOLE_BAUDRATE, 169 &uart_console); 170 console_set_scope(&uart_console.console, CONSOLE_FLAG_BOOT | 171 CONSOLE_FLAG_RUNTIME | CONSOLE_FLAG_CRASH); 172 } 173 } 174 175 /******************************************************************************* 176 * Handler for early platform setup 177 ******************************************************************************/ 178 void plat_early_platform_setup(void) 179 { 180 uint64_t impl, val; 181 const plat_params_from_bl2_t *plat_params = bl31_get_plat_params(); 182 183 /* sanity check MCE firmware compatibility */ 184 mce_verify_firmware_version(); 185 186 impl = (read_midr() >> MIDR_IMPL_SHIFT) & (uint64_t)MIDR_IMPL_MASK; 187 188 /* 189 * Enable ECC and Parity Protection for Cortex-A57 CPUs (Tegra186 190 * A02p and beyond). 191 */ 192 if ((plat_params->l2_ecc_parity_prot_dis != 1) && 193 (impl != (uint64_t)DENVER_IMPL)) { 194 195 val = read_l2ctlr_el1(); 196 val |= CORTEX_A57_L2_ECC_PARITY_PROTECTION_BIT; 197 write_l2ctlr_el1(val); 198 } 199 } 200 201 /******************************************************************************* 202 * Handler for late platform setup 203 ******************************************************************************/ 204 void plat_late_platform_setup(void) 205 { 206 ; /* do nothing */ 207 } 208 209 /* Secure IRQs for Tegra186 */ 210 static const interrupt_prop_t tegra186_interrupt_props[] = { 211 INTR_PROP_DESC(TEGRA186_TOP_WDT_IRQ, GIC_HIGHEST_SEC_PRIORITY, 212 GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE), 213 INTR_PROP_DESC(TEGRA186_AON_WDT_IRQ, GIC_HIGHEST_SEC_PRIORITY, 214 GICV2_INTR_GROUP0, GIC_INTR_CFG_EDGE) 215 }; 216 217 /******************************************************************************* 218 * Initialize the GIC and SGIs 219 ******************************************************************************/ 220 void plat_gic_setup(void) 221 { 222 tegra_gic_setup(tegra186_interrupt_props, ARRAY_SIZE(tegra186_interrupt_props)); 223 tegra_gic_init(); 224 225 /* 226 * Initialize the FIQ handler only if the platform supports any 227 * FIQ interrupt sources. 228 */ 229 tegra_fiq_handler_setup(); 230 } 231 232 /******************************************************************************* 233 * Return pointer to the BL31 params from previous bootloader 234 ******************************************************************************/ 235 struct tegra_bl31_params *plat_get_bl31_params(void) 236 { 237 uint32_t val; 238 239 val = mmio_read_32(TEGRA_SCRATCH_BASE + SCRATCH_BL31_PARAMS_ADDR); 240 241 return (struct tegra_bl31_params *)(uintptr_t)val; 242 } 243 244 /******************************************************************************* 245 * Return pointer to the BL31 platform params from previous bootloader 246 ******************************************************************************/ 247 plat_params_from_bl2_t *plat_get_bl31_plat_params(void) 248 { 249 uint32_t val; 250 251 val = mmio_read_32(TEGRA_SCRATCH_BASE + SCRATCH_BL31_PLAT_PARAMS_ADDR); 252 253 return (plat_params_from_bl2_t *)(uintptr_t)val; 254 } 255 256 /******************************************************************************* 257 * This function implements a part of the critical interface between the psci 258 * generic layer and the platform that allows the former to query the platform 259 * to convert an MPIDR to a unique linear index. An error code (-1) is returned 260 * in case the MPIDR is invalid. 261 ******************************************************************************/ 262 int32_t plat_core_pos_by_mpidr(u_register_t mpidr) 263 { 264 u_register_t cluster_id, cpu_id, pos; 265 int32_t ret; 266 267 cluster_id = (mpidr >> (u_register_t)MPIDR_AFF1_SHIFT) & (u_register_t)MPIDR_AFFLVL_MASK; 268 cpu_id = (mpidr >> (u_register_t)MPIDR_AFF0_SHIFT) & (u_register_t)MPIDR_AFFLVL_MASK; 269 270 /* 271 * Validate cluster_id by checking whether it represents 272 * one of the two clusters present on the platform. 273 * Validate cpu_id by checking whether it represents a CPU in 274 * one of the two clusters present on the platform. 275 */ 276 if ((cluster_id >= (u_register_t)PLATFORM_CLUSTER_COUNT) || 277 (cpu_id >= (u_register_t)PLATFORM_MAX_CPUS_PER_CLUSTER)) { 278 ret = PSCI_E_NOT_PRESENT; 279 } else { 280 /* calculate the core position */ 281 pos = cpu_id + (cluster_id << 2U); 282 283 /* check for non-existent CPUs */ 284 if ((pos == TEGRA186_CLUSTER0_CORE2) || (pos == TEGRA186_CLUSTER0_CORE3)) { 285 ret = PSCI_E_NOT_PRESENT; 286 } else { 287 ret = (int32_t)pos; 288 } 289 } 290 291 return ret; 292 } 293 294 /******************************************************************************* 295 * Handler to relocate BL32 image to TZDRAM 296 ******************************************************************************/ 297 void plat_relocate_bl32_image(const image_info_t *bl32_img_info) 298 { 299 const plat_params_from_bl2_t *plat_bl31_params = plat_get_bl31_plat_params(); 300 const entry_point_info_t *bl32_ep_info = bl31_plat_get_next_image_ep_info(SECURE); 301 uint64_t tzdram_start, tzdram_end, bl32_start, bl32_end; 302 303 if ((bl32_img_info != NULL) && (bl32_ep_info != NULL)) { 304 305 /* Relocate BL32 if it resides outside of the TZDRAM */ 306 tzdram_start = plat_bl31_params->tzdram_base; 307 tzdram_end = plat_bl31_params->tzdram_base + 308 plat_bl31_params->tzdram_size; 309 bl32_start = bl32_img_info->image_base; 310 bl32_end = bl32_img_info->image_base + bl32_img_info->image_size; 311 312 assert(tzdram_end > tzdram_start); 313 assert(bl32_end > bl32_start); 314 assert(bl32_ep_info->pc > tzdram_start); 315 assert(bl32_ep_info->pc < tzdram_end); 316 317 /* relocate BL32 */ 318 if ((bl32_start >= tzdram_end) || (bl32_end <= tzdram_start)) { 319 320 INFO("Relocate BL32 to TZDRAM\n"); 321 322 (void)memcpy16((void *)(uintptr_t)bl32_ep_info->pc, 323 (void *)(uintptr_t)bl32_start, 324 bl32_img_info->image_size); 325 326 /* clean up non-secure intermediate buffer */ 327 zeromem((void *)(uintptr_t)bl32_start, 328 bl32_img_info->image_size); 329 } 330 } 331 } 332 333 /******************************************************************************* 334 * Handler to indicate support for System Suspend 335 ******************************************************************************/ 336 bool plat_supports_system_suspend(void) 337 { 338 return true; 339 } 340