Option to disable ECC on CCMs

[martinpriestley]

As I understand it, the CCMs exist for 2 reasons:

1. To provide low-latency (and therefore high performance) memory, by eliminating the overheads of going out to the bus and back, without the need for caches.
2. To be extra robust and secure

I'm only interested in the first of these, and would rather save power and area by having smaller RAMs and no ECC logic.
I think ECC on DCCM necessitates read-modify-writes when doing byte/halfword stores? If so, removing this should also be a saving.

Can there be a config option to disable ECC on ICCM and/or DCCM?

[martinpriestley]

Wait, no, it hasn't. I'm confusing ICACHE and ICCM.