Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME70Q19/SDRAMC/MDR#0x0
MD=SDRAM
SDRAMC Memory Device Register
Memory Device Type
0 (SDRAM): SDRAM
1 (LPSDRAM): Low-power SDRAM
https://github.com/cmsis-svd/cmsis-svd-data