Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Freescale Semiconductor/MK61F15WS/DDR/CR55#0x0
DDR Control Register 55
DFI PHYUPD TYPE2
Reserved
DFI PHYUPD TYPE3
https://github.com/cmsis-svd/cmsis-svd-data