Refactor the return types to ensure code correctness and compliance
for DT console.
Change-Id: I11dc3afbe168a78ddc03427df3f5f8d10fe40d40
Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
With this change, the 'is_valid_dtb()' function has been added,
which checks for the presence of the FDT header, FDT open, and the
'/configurations' property in the DTB. This property is only available
in FIT images. If the property is present, a warning message is
printed, and the code skips reading console information from the
FIT image. Memory mapping is not necessary because it is called in
the early setup function to collect UART information from the DTB.
Change-Id: I91335a180e7ece2cc0ec9fac4026556c48dd8cc8
Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Introduces functionality to retrieve console information from the
device tree (DTB) and use it in TF-A code.
With fdt_get_stdout_node_offset() function, which reads the 'secure-chosen'
first,'chosen' and 'stdout-path' properties from the DTB, providing a
convenient and standardized way to access serial console information.
Implemented a comparison mechanism between early console information
and the data populated from the DTB. In case of a mismatch, the commit
takes care of unregistering the build-time console configuration and
registering the DTB-based console.
Reorganizes the console configuration setup in BL31 by moving it to a
dedicated function called setup_console() in the plat_console.c
file. This change improves code readability by isolating
console-related settings, making it easier to manage and extend the
console configuration in the future.
Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Change-Id: I857042fc0fb8f070bbc11f6b47aa57a72fbe5392
