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https://github.com/ARM-software/arm-trusted-firmware.git
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cab0b5b045
The patch adds the necessary changes to load HW_CONFIG in BL2 for ARM Platforms : 1. The load address of HW_CONFIG is specified via the `hw_config_addr` property in TB_FW_CONFIG is loaded by BL1. The `hw_config_max_size` property defines the maximum size to be expected for the HW_CONFIG. The `arm_dyn_cfg_helpers.c` and corresponding header implements utility functions to parse these DT properties defined. The `arm_dyn_cfg.c` implements wrappers to these helpers to enable them to be invoked from ARM platform layer. 2. `HW_CONFIG` is added to the `bl2_mem_params_descs[]` array which is the list of images to be loaded by BL2. 3. The `libfdt` sources are now included when BL2 is built 4. A new helper `populate_next_bl_params_config()` is introduced in desc_image_load.c to populate the subsequent executable BL images with the `hw_config` and the corresponding `fw_config` if available. The `plat_get_next_bl_params()` API for ARM platforms is modified to invoke this new helper. 5. The implementation of `bl2_early_platform_setup2()` is modified to consider `arg0` as well in addition to `arg1` passed from BL1. 6. Bump up the BL2 size for Juno to accommodate the inclusion of libfdt. Change-Id: I80f1554adec41753e0d179a5237364f04fe13a3f Signed-off-by: Soby Mathew <soby.mathew@arm.com>
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
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* Copyright (c) 2016-2018, ARM Limited and Contributors. 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 <arm_def.h>
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#include <bl_common.h>
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#include <desc_image_load.h>
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#include <plat_arm.h>
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#include <platform.h>
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#pragma weak plat_flush_next_bl_params
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#pragma weak plat_get_bl_image_load_info
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#pragma weak plat_get_next_bl_params
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/*******************************************************************************
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* This function flushes the data structures so that they are visible
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* in memory for the next BL image.
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******************************************************************************/
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void plat_flush_next_bl_params(void)
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{
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flush_bl_params_desc();
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}
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/*******************************************************************************
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* This function returns the list of loadable images.
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******************************************************************************/
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bl_load_info_t *plat_get_bl_image_load_info(void)
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{
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return get_bl_load_info_from_mem_params_desc();
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}
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/*******************************************************************************
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* This function returns the list of executable images.
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******************************************************************************/
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bl_params_t *plat_get_next_bl_params(void)
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{
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bl_params_t *next_bl_params = get_next_bl_params_from_mem_params_desc();
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populate_next_bl_params_config(next_bl_params);
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return next_bl_params;
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}
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