1 /* 2 * Copyright (c) 2018-2020, Arm Limited and Contributors. All rights reserved. 3 * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. 4 * Copyright (c) 2022-2023, Advanced Micro Devices, Inc. All rights reserved. 5 * 6 * SPDX-License-Identifier: BSD-3-Clause 7 */ 8 9 #include <assert.h> 10 #include <errno.h> 11 12 #include <bl31/bl31.h> 13 #include <common/bl_common.h> 14 #include <common/debug.h> 15 #include <drivers/arm/dcc.h> 16 #include <drivers/arm/pl011.h> 17 #include <drivers/console.h> 18 #include <lib/mmio.h> 19 #include <lib/xlat_tables/xlat_tables_v2.h> 20 #include <plat/common/platform.h> 21 #include <plat_arm.h> 22 23 #include <plat_fdt.h> 24 #include <plat_private.h> 25 #include <plat_startup.h> 26 #include <pm_api_sys.h> 27 #include <pm_client.h> 28 #include <pm_ipi.h> 29 #include <versal_net_def.h> 30 31 static entry_point_info_t bl32_image_ep_info; 32 static entry_point_info_t bl33_image_ep_info; 33 34 /* 35 * Return a pointer to the 'entry_point_info' structure of the next image for 36 * the security state specified. BL33 corresponds to the non-secure image type 37 * while BL32 corresponds to the secure image type. A NULL pointer is returned 38 * if the image does not exist. 39 */ 40 entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) 41 { 42 assert(sec_state_is_valid(type)); 43 44 if (type == NON_SECURE) { 45 return &bl33_image_ep_info; 46 } 47 48 return &bl32_image_ep_info; 49 } 50 51 /* 52 * Set the build time defaults,if we can't find any config data. 53 */ 54 static inline void bl31_set_default_config(void) 55 { 56 bl32_image_ep_info.pc = BL32_BASE; 57 bl32_image_ep_info.spsr = arm_get_spsr_for_bl32_entry(); 58 bl33_image_ep_info.pc = plat_get_ns_image_entrypoint(); 59 bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX, 60 DISABLE_ALL_EXCEPTIONS); 61 } 62 63 /* 64 * Perform any BL31 specific platform actions. Here is an opportunity to copy 65 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they 66 * are lost (potentially). This needs to be done before the MMU is initialized 67 * so that the memory layout can be used while creating page tables. 68 */ 69 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, 70 u_register_t arg2, u_register_t arg3) 71 { 72 int32_t rc; 73 #if !(TFA_NO_PM) 74 uint64_t tfa_handoff_addr, buff[HANDOFF_PARAMS_MAX_SIZE] = {0}; 75 uint32_t payload[PAYLOAD_ARG_CNT], max_size = HANDOFF_PARAMS_MAX_SIZE; 76 enum pm_ret_status ret_status; 77 #endif /* !(TFA_NO_PM) */ 78 uint32_t uart_clk = get_uart_clk(); 79 80 board_detection(); 81 82 switch (platform_id) { 83 case VERSAL_NET_SPP: 84 cpu_clock = 1000000; 85 break; 86 case VERSAL_NET_EMU: 87 cpu_clock = 3660000; 88 break; 89 case VERSAL_NET_QEMU: 90 /* Random values now */ 91 cpu_clock = 100000000; 92 break; 93 case VERSAL_NET_SILICON: 94 cpu_clock = 100000000; 95 break; 96 default: 97 panic(); 98 } 99 100 if (CONSOLE_IS(pl011_0) || CONSOLE_IS(pl011_1)) { 101 static console_t versal_net_runtime_console; 102 103 /* Initialize the console to provide early debug support */ 104 rc = console_pl011_register(UART_BASE, uart_clk, 105 UART_BAUDRATE, 106 &versal_net_runtime_console); 107 if (rc == 0) { 108 panic(); 109 } 110 111 console_set_scope(&versal_net_runtime_console, CONSOLE_FLAG_BOOT | 112 CONSOLE_FLAG_RUNTIME | CONSOLE_FLAG_CRASH); 113 } else if (CONSOLE_IS(dcc)) { 114 /* Initialize the dcc console for debug. 115 * dcc is over jtag and does not configures uart0 or uart1. 116 */ 117 rc = console_dcc_register(); 118 if (rc == 0) { 119 panic(); 120 } 121 } else { 122 /* No console device found. */ 123 } 124 125 NOTICE("TF-A running on %s %d.%d\n", board_name_decode(), 126 platform_version / 10U, platform_version % 10U); 127 128 /* Initialize the platform config for future decision making */ 129 versal_net_config_setup(); 130 131 /* 132 * Do initial security configuration to allow DRAM/device access. On 133 * Base VERSAL_NET only DRAM security is programmable (via TrustZone), but 134 * other platforms might have more programmable security devices 135 * present. 136 */ 137 138 /* Populate common information for BL32 and BL33 */ 139 SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0); 140 SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE); 141 SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0); 142 SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE); 143 #if !(TFA_NO_PM) 144 PM_PACK_PAYLOAD4(payload, LOADER_MODULE_ID, 1, PM_LOAD_GET_HANDOFF_PARAMS, 145 (uintptr_t)buff >> 32U, (uintptr_t)buff, max_size); 146 147 ret_status = pm_ipi_send_sync(primary_proc, payload, NULL, 0); 148 if (ret_status == PM_RET_SUCCESS) { 149 enum xbl_handoff xbl_ret; 150 151 tfa_handoff_addr = (uintptr_t)&buff; 152 153 xbl_ret = xbl_handover(&bl32_image_ep_info, &bl33_image_ep_info, 154 tfa_handoff_addr); 155 if (xbl_ret != XBL_HANDOFF_SUCCESS) { 156 ERROR("BL31: PLM to TF-A handover failed %u\n", xbl_ret); 157 panic(); 158 } 159 160 INFO("BL31: PLM to TF-A handover success\n"); 161 } else { 162 INFO("BL31: setting up default configs\n"); 163 164 bl31_set_default_config(); 165 } 166 #else 167 bl31_set_default_config(); 168 #endif /* !(TFA_NO_PM) */ 169 170 NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc); 171 NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc); 172 } 173 174 static versal_intr_info_type_el3_t type_el3_interrupt_table[MAX_INTR_EL3]; 175 176 int request_intr_type_el3(uint32_t id, interrupt_type_handler_t handler) 177 { 178 static uint32_t index; 179 uint32_t i; 180 181 /* Validate 'handler' and 'id' parameters */ 182 if (handler == NULL || index >= MAX_INTR_EL3) { 183 return -EINVAL; 184 } 185 186 /* Check if a handler has already been registered */ 187 for (i = 0; i < index; i++) { 188 if (id == type_el3_interrupt_table[i].id) { 189 return -EALREADY; 190 } 191 } 192 193 type_el3_interrupt_table[index].id = id; 194 type_el3_interrupt_table[index].handler = handler; 195 196 index++; 197 198 return 0; 199 } 200 201 static uint64_t rdo_el3_interrupt_handler(uint32_t id, uint32_t flags, 202 void *handle, void *cookie) 203 { 204 uint32_t intr_id; 205 uint32_t i; 206 interrupt_type_handler_t handler = NULL; 207 208 intr_id = plat_ic_get_pending_interrupt_id(); 209 210 for (i = 0; i < MAX_INTR_EL3; i++) { 211 if (intr_id == type_el3_interrupt_table[i].id) { 212 handler = type_el3_interrupt_table[i].handler; 213 } 214 } 215 216 if (handler != NULL) { 217 handler(intr_id, flags, handle, cookie); 218 } 219 220 return 0; 221 } 222 223 void bl31_platform_setup(void) 224 { 225 prepare_dtb(); 226 227 /* Initialize the gic cpu and distributor interfaces */ 228 plat_versal_net_gic_driver_init(); 229 plat_versal_net_gic_init(); 230 } 231 232 void bl31_plat_runtime_setup(void) 233 { 234 uint64_t flags = 0; 235 int32_t rc; 236 237 set_interrupt_rm_flag(flags, NON_SECURE); 238 rc = register_interrupt_type_handler(INTR_TYPE_EL3, 239 rdo_el3_interrupt_handler, flags); 240 if (rc != 0) { 241 panic(); 242 } 243 } 244 245 /* 246 * Perform the very early platform specific architectural setup here. 247 */ 248 void bl31_plat_arch_setup(void) 249 { 250 const mmap_region_t bl_regions[] = { 251 #if (defined(XILINX_OF_BOARD_DTB_ADDR) && !IS_TFA_IN_OCM(BL31_BASE)) 252 MAP_REGION_FLAT(XILINX_OF_BOARD_DTB_ADDR, XILINX_OF_BOARD_DTB_MAX_SIZE, 253 MT_MEMORY | MT_RW | MT_NS), 254 #endif 255 MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE, 256 MT_MEMORY | MT_RW | MT_SECURE), 257 MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE, 258 MT_CODE | MT_SECURE), 259 MAP_REGION_FLAT(BL_RO_DATA_BASE, BL_RO_DATA_END - BL_RO_DATA_BASE, 260 MT_RO_DATA | MT_SECURE), 261 {0} 262 }; 263 264 setup_page_tables(bl_regions, plat_versal_net_get_mmap()); 265 enable_mmu(0); 266 } 267