1 /* 2 * Copyright (c) 2013-2023, 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 <common/desc_image_load.h> 11 #include <drivers/arm/sp804_delay_timer.h> 12 #include <lib/fconf/fconf.h> 13 #include <lib/fconf/fconf_dyn_cfg_getter.h> 14 15 #include <plat/arm/common/plat_arm.h> 16 #include <plat/common/platform.h> 17 #include <platform_def.h> 18 19 #include "fvp_private.h" 20 21 void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1, u_register_t arg2, u_register_t arg3) 22 { 23 arm_bl2_early_platform_setup((uintptr_t)arg0, (meminfo_t *)arg1); 24 25 /* Initialize the platform config for future decision making */ 26 fvp_config_setup(); 27 } 28 29 void bl2_platform_setup(void) 30 { 31 arm_bl2_platform_setup(); 32 33 /* Initialize System level generic or SP804 timer */ 34 fvp_timer_init(); 35 } 36 37 /******************************************************************************* 38 * This function returns the list of executable images 39 ******************************************************************************/ 40 struct bl_params *plat_get_next_bl_params(void) 41 { 42 struct bl_params *arm_bl_params; 43 const struct dyn_cfg_dtb_info_t *hw_config_info __unused; 44 bl_mem_params_node_t *param_node __unused; 45 46 arm_bl_params = arm_get_next_bl_params(); 47 48 #if !RESET_TO_BL2 && !EL3_PAYLOAD_BASE 49 const struct dyn_cfg_dtb_info_t *fw_config_info; 50 uintptr_t fw_config_base = 0UL; 51 entry_point_info_t *ep_info; 52 53 #if __aarch64__ 54 /* Get BL31 image node */ 55 param_node = get_bl_mem_params_node(BL31_IMAGE_ID); 56 #else /* aarch32 */ 57 /* Get SP_MIN image node */ 58 param_node = get_bl_mem_params_node(BL32_IMAGE_ID); 59 #endif /* __aarch64__ */ 60 assert(param_node != NULL); 61 62 /* get fw_config load address */ 63 fw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID); 64 assert(fw_config_info != NULL); 65 66 fw_config_base = fw_config_info->config_addr; 67 assert(fw_config_base != 0UL); 68 69 /* 70 * Get the entry point info of next executable image and override 71 * arg1 of entry point info with fw_config base address 72 */ 73 ep_info = ¶m_node->ep_info; 74 ep_info->args.arg1 = (uint32_t)fw_config_base; 75 76 /* grab NS HW config address */ 77 hw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, HW_CONFIG_ID); 78 assert(hw_config_info != NULL); 79 80 /* To retrieve actual size of the HW_CONFIG */ 81 param_node = get_bl_mem_params_node(HW_CONFIG_ID); 82 assert(param_node != NULL); 83 84 /* Copy HW config from Secure address to NS address */ 85 memcpy((void *)hw_config_info->secondary_config_addr, 86 (void *)hw_config_info->config_addr, 87 (size_t)param_node->image_info.image_size); 88 89 /* 90 * Ensure HW-config device tree committed to memory, as there is 91 * a possibility to use HW-config without cache and MMU enabled 92 * at BL33 93 */ 94 flush_dcache_range(hw_config_info->secondary_config_addr, 95 param_node->image_info.image_size); 96 97 param_node = get_bl_mem_params_node(BL33_IMAGE_ID); 98 assert(param_node != NULL); 99 100 /* Update BL33's ep info with NS HW config address */ 101 param_node->ep_info.args.arg1 = hw_config_info->secondary_config_addr; 102 #endif /* !RESET_TO_BL2 && !EL3_PAYLOAD_BASE */ 103 104 return arm_bl_params; 105 } 106