Dear Heiko Schocher,
In message 499BB9C6.6010602@denx.de you wrote:
You convinced me. This code must not be used before relocation to RAM, then.
But is is possible to use that code when running from flash, if this current pointer is writeable ...
Yes, it is possible, but then - ther eis no need for it.
Yes, it is, because none of them needs any such switching before relocation. And switching is really simple so far.
They use it before relocation, because the DTTs are read before relocation.
I am not aware that any piece of code in the init sequence makes use of the information read from the DTT's, so why is this performaned before relocation?
More - why is this performed at all for each reset cycle? Normally we should not even initialize interfaces that are nt used for U-Boot's own operation.
I think the automatic DTT checking should be dropped.
Best regards,
Wolfgang Denk