quoted

Actually it's not board specific. You can run various bootloaders or
various bootstrap tools on any of those boards. Though pdata seems ok
for the default case, maybe we should have a simple way to override
this?

You mean you want to switch to/drop the BBT if you want to? On MX23,
this can be easily a very dangerous thing to do. What's the use case?

Tools that don't support writing the BBT properly.

Regards,

   Wolfram