Hello,
you need not to close the topics because more useful comments will come from the others.
Regarding Cortex-M7, it is opened that STMicro, Freescale, Atmel and Spansion have gotten the license.
As far as I know, only Atmel device supports both single and double precision FPU.
As for Spansion device, there is no information as of today.
This is just for your information.
Best regards,
Yasuhiko Koumoto.