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046e130472
Introduce two new functions: 'is_valid_image()' and 'is_fit_image()' to enhance the functionality of the system. 'is_valid_image()' will verify the presence of the FDT header and ensure that the FDT is open. Meanwhile, 'is_fit_image()' will be responsible for detecting FIT images. When TF-A is built with a DTB address during compilation and later executed from DDR memory, TF-A will dynamically reserve a memory location in the DTB during runtime. This approach is effective when a raw DTB is present at the specified address location. With this change, the "is_fit_image()" function has been introduced to verify the existence of the "/configurations" property within the DTB. The presence of this property is exclusive to FIT images. In case the property is found, a warning message is displayed, and memory space reservation for its address space in DDR is not performed by TF-A. However, if the property is not present, TF-A continues its usual procedure of updating the raw DTB. Additionally, dynamic mapping has been refactored and separated into distinct functions: "add_mmap_dynamic_region ()" and "remove_dynamic_mmap()". This separation enhances compatibility and maintains better code organization. Change-Id: I9cd3f09863b44483445e58c802dee34d58dfe2e9 Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
16 lines
294 B
C
16 lines
294 B
C
/*
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* Copyright (c) 2023, Advanced Micro Devices, Inc. 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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*/
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#ifndef PLAT_FDT_H
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#define PLAT_FDT_H
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void prepare_dtb(void);
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#if defined(XILINX_OF_BOARD_DTB_ADDR)
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int32_t is_valid_dtb(void *fdt);
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#endif
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#endif /* PLAT_FDT_H */
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