Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAMV71J20/PMC/CKGR_UCKR#0x0
UTMI Clock Register
UTMI PLL Enable
UTMI PLL Startup Time
https://github.com/cmsis-svd/cmsis-svd-data