Sam Edwards 17d830cb4b spl: riscv: opensbi: Error on misaligned FDT ...

libfdt 1.6.1+ requires the FDT to be 8-byte aligned and returns an error
if not. OpenSBI 1.0+ includes this version of libfdt and will also
reject misaligned FDTs.

However, OpenSBI cannot indicate the error to the user: since it cannot
access the serial console, it can only silently hang. This proved very
difficult to diagnose without proper debugging facilities. Therefore,
give the U-Boot SPL, which *can* print error messages, an additional
check for proper FDT alignment. Hopefully this saves a lot of
development cycles if another developer encounters alignment problems.

Signed-off-by: Sam Edwards <CFSworks@gmail.com>

2025-04-02 14:33:50 -06:00

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