| /* |
| * Copyright (c) 2018-2021, Arm Limited and Contributors. All rights reserved. |
| * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. |
| * Copyright (c) 2022-2023, Advanced Micro Devices, Inc. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include <assert.h> |
| #include <errno.h> |
| |
| #include <bl31/bl31.h> |
| #include <common/bl_common.h> |
| #include <common/debug.h> |
| #include <drivers/arm/dcc.h> |
| #include <drivers/arm/pl011.h> |
| #include <drivers/console.h> |
| #include <lib/mmio.h> |
| #include <lib/xlat_tables/xlat_tables_v2.h> |
| #include <plat/common/platform.h> |
| #include <plat_arm.h> |
| |
| #include <plat_fdt.h> |
| #include <plat_private.h> |
| #include <plat_startup.h> |
| #include "pm_api_sys.h" |
| #include "pm_client.h" |
| #include <pm_ipi.h> |
| #include <versal_def.h> |
| |
| static entry_point_info_t bl32_image_ep_info; |
| static entry_point_info_t bl33_image_ep_info; |
| |
| /* |
| * Return a pointer to the 'entry_point_info' structure of the next image for |
| * the security state specified. BL33 corresponds to the non-secure image type |
| * while BL32 corresponds to the secure image type. A NULL pointer is returned |
| * if the image does not exist. |
| */ |
| entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) |
| { |
| assert(sec_state_is_valid(type)); |
| |
| if (type == NON_SECURE) { |
| return &bl33_image_ep_info; |
| } |
| |
| return &bl32_image_ep_info; |
| } |
| |
| /* |
| * Set the build time defaults,if we can't find any config data. |
| */ |
| static inline void bl31_set_default_config(void) |
| { |
| bl32_image_ep_info.pc = (uintptr_t)BL32_BASE; |
| bl32_image_ep_info.spsr = (uint32_t)arm_get_spsr_for_bl32_entry(); |
| bl33_image_ep_info.pc = (uintptr_t)plat_get_ns_image_entrypoint(); |
| bl33_image_ep_info.spsr = (uint32_t)SPSR_64(MODE_EL2, MODE_SP_ELX, |
| DISABLE_ALL_EXCEPTIONS); |
| } |
| |
| /* |
| * Perform any BL31 specific platform actions. Here is an opportunity to copy |
| * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they |
| * are lost (potentially). This needs to be done before the MMU is initialized |
| * so that the memory layout can be used while creating page tables. |
| */ |
| void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, |
| u_register_t arg2, u_register_t arg3) |
| { |
| uint64_t tfa_handoff_addr; |
| uint32_t payload[PAYLOAD_ARG_CNT], max_size = HANDOFF_PARAMS_MAX_SIZE; |
| enum pm_ret_status ret_status; |
| uint64_t addr[HANDOFF_PARAMS_MAX_SIZE]; |
| uint32_t uart_clk = get_uart_clk(); |
| |
| if (CONSOLE_IS(pl011) || (CONSOLE_IS(pl011_1))) { |
| static console_t versal_runtime_console; |
| /* Initialize the console to provide early debug support */ |
| int32_t rc = console_pl011_register((uintptr_t)UART_BASE, |
| uart_clk, |
| (uint32_t)UART_BAUDRATE, |
| &versal_runtime_console); |
| if (rc == 0) { |
| panic(); |
| } |
| |
| console_set_scope(&versal_runtime_console, (uint32_t)(CONSOLE_FLAG_BOOT | |
| CONSOLE_FLAG_RUNTIME | CONSOLE_FLAG_CRASH)); |
| } else if (CONSOLE_IS(dcc)) { |
| /* Initialize the dcc console for debug */ |
| int32_t rc = console_dcc_register(); |
| if (rc == 0) { |
| panic(); |
| } |
| } else { |
| /* No console device found. */ |
| } |
| |
| /* Initialize the platform config for future decision making */ |
| versal_config_setup(); |
| |
| /* Get platform related information */ |
| board_detection(); |
| |
| /* |
| * Do initial security configuration to allow DRAM/device access. On |
| * Base VERSAL only DRAM security is programmable (via TrustZone), but |
| * other platforms might have more programmable security devices |
| * present. |
| */ |
| |
| /* Populate common information for BL32 and BL33 */ |
| SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0); |
| SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE); |
| SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0); |
| SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE); |
| |
| PM_PACK_PAYLOAD4(payload, LOADER_MODULE_ID, 1, PM_LOAD_GET_HANDOFF_PARAMS, |
| (uintptr_t)addr >> 32U, (uintptr_t)addr, max_size); |
| ret_status = pm_ipi_send_sync(primary_proc, payload, NULL, 0); |
| if (ret_status == PM_RET_SUCCESS) { |
| INFO("BL31: GET_HANDOFF_PARAMS call success=%d\n", ret_status); |
| tfa_handoff_addr = (uintptr_t)&addr; |
| } else { |
| ERROR("BL31: GET_HANDOFF_PARAMS Failed, read tfa_handoff_addr from reg\n"); |
| tfa_handoff_addr = mmio_read_32(PMC_GLOBAL_GLOB_GEN_STORAGE4); |
| } |
| |
| enum xbl_handoff ret = xbl_handover(&bl32_image_ep_info, |
| &bl33_image_ep_info, |
| tfa_handoff_addr); |
| if (ret == XBL_HANDOFF_NO_STRUCT || ret == XBL_HANDOFF_INVAL_STRUCT) { |
| bl31_set_default_config(); |
| } else if (ret == XBL_HANDOFF_TOO_MANY_PARTS) { |
| ERROR("BL31: Error too many partitions %u\n", ret); |
| } else if (ret != XBL_HANDOFF_SUCCESS) { |
| panic(); |
| } else { |
| INFO("BL31: PLM to TF-A handover success %u\n", ret); |
| } |
| |
| NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc); |
| NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc); |
| } |
| |
| static versal_intr_info_type_el3_t type_el3_interrupt_table[MAX_INTR_EL3]; |
| |
| int request_intr_type_el3(uint32_t id, interrupt_type_handler_t handler) |
| { |
| static uint32_t index; |
| uint32_t i; |
| |
| /* Validate 'handler' and 'id' parameters */ |
| if (handler == NULL || index >= MAX_INTR_EL3) { |
| return -EINVAL; |
| } |
| |
| /* Check if a handler has already been registered */ |
| for (i = 0; i < index; i++) { |
| if (id == type_el3_interrupt_table[i].id) { |
| return -EALREADY; |
| } |
| } |
| |
| type_el3_interrupt_table[index].id = id; |
| type_el3_interrupt_table[index].handler = handler; |
| |
| index++; |
| |
| return 0; |
| } |
| |
| static uint64_t rdo_el3_interrupt_handler(uint32_t id, uint32_t flags, |
| void *handle, void *cookie) |
| { |
| uint32_t intr_id; |
| uint32_t i; |
| interrupt_type_handler_t handler = NULL; |
| |
| intr_id = plat_ic_get_pending_interrupt_id(); |
| |
| for (i = 0; i < MAX_INTR_EL3; i++) { |
| if (intr_id == type_el3_interrupt_table[i].id) { |
| handler = type_el3_interrupt_table[i].handler; |
| } |
| } |
| |
| if (handler != NULL) { |
| return handler(intr_id, flags, handle, cookie); |
| } |
| |
| return 0; |
| } |
| |
| void bl31_platform_setup(void) |
| { |
| prepare_dtb(); |
| |
| /* Initialize the gic cpu and distributor interfaces */ |
| plat_versal_gic_driver_init(); |
| plat_versal_gic_init(); |
| } |
| |
| void bl31_plat_runtime_setup(void) |
| { |
| uint64_t flags = 0; |
| int32_t rc; |
| |
| set_interrupt_rm_flag(flags, NON_SECURE); |
| rc = register_interrupt_type_handler(INTR_TYPE_EL3, |
| rdo_el3_interrupt_handler, flags); |
| if (rc != 0) { |
| panic(); |
| } |
| } |
| |
| /* |
| * Perform the very early platform specific architectural setup here. |
| */ |
| void bl31_plat_arch_setup(void) |
| { |
| plat_arm_interconnect_init(); |
| plat_arm_interconnect_enter_coherency(); |
| |
| const mmap_region_t bl_regions[] = { |
| #if (defined(XILINX_OF_BOARD_DTB_ADDR) && !IS_TFA_IN_OCM(BL31_BASE) && \ |
| (!defined(PLAT_XLAT_TABLES_DYNAMIC))) |
| MAP_REGION_FLAT(XILINX_OF_BOARD_DTB_ADDR, XILINX_OF_BOARD_DTB_MAX_SIZE, |
| MT_MEMORY | MT_RW | MT_NS), |
| #endif |
| MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE, |
| MT_MEMORY | MT_RW | MT_SECURE), |
| MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE, |
| MT_CODE | MT_SECURE), |
| MAP_REGION_FLAT(BL_RO_DATA_BASE, BL_RO_DATA_END - BL_RO_DATA_BASE, |
| MT_RO_DATA | MT_SECURE), |
| MAP_REGION_FLAT(BL_COHERENT_RAM_BASE, |
| BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE, |
| MT_DEVICE | MT_RW | MT_SECURE), |
| {0} |
| }; |
| |
| setup_page_tables(bl_regions, plat_versal_get_mmap()); |
| enable_mmu(0); |
| } |