If the STM32H7 fails to program or erase a full chunk of 256 bytes, the
ECC check will trigger a busfault when trying to read from it.
To speed up erasing and optimize wear, we read before erasing to check
if it actually needs erasing. That's when a busfault happens and the
erase time outs.
The workaround is to add an option to do a full erase without check.
Credit goes to:
https://github.com/ArduPilot/ardupilot/pull/22090
And the protocol option added to the bootloader is the same as for
ArduPilot, so compatible.
Signed-off-by: Julian Oes <julian@oes.ch>
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