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34a87d74d9
BL2 passes FW_CONFIG to BL31 which contains information about different DTBs present. BL31 then uses FW_CONFIG to get the base address of HW_CONFIG and populate fconf. Signed-off-by: Usama Arif <usama.arif@arm.com> Change-Id: I0b4fc83e6e0a0b9401f692516654eb9a3b037616
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* Copyright (c) 2021, ARM Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <common/bl_common.h>
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#include <common/desc_image_load.h>
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#include <lib/fconf/fconf.h>
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#include <lib/fconf/fconf_dyn_cfg_getter.h>
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#include <plat/arm/common/plat_arm.h>
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/*******************************************************************************
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* This function returns the list of executable images
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******************************************************************************/
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struct bl_params *plat_get_next_bl_params(void)
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{
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struct bl_params *arm_bl_params = arm_get_next_bl_params();
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const struct dyn_cfg_dtb_info_t *fw_config_info;
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bl_mem_params_node_t *param_node;
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uintptr_t fw_config_base = 0U;
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entry_point_info_t *ep_info;
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/* Get BL31 image node */
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param_node = get_bl_mem_params_node(BL31_IMAGE_ID);
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assert(param_node != NULL);
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/* Get fw_config load address */
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fw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID);
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assert(fw_config_info != NULL);
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fw_config_base = fw_config_info->config_addr;
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assert(fw_config_base != 0U);
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/*
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* Get the entry point info of BL31 image and override
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* arg1 of entry point info with fw_config base address
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*/
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ep_info = ¶m_node->ep_info;
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ep_info->args.arg1 = (uint32_t)fw_config_base;
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return arm_bl_params;
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}
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