Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32l5/STM32L552/ICache/ICACHE_CR#0x0
ICACHE control register
EN
CACHEINV
WAYSEL
HITMEN
MISSMEN
HITMRST
MISSMRST
https://github.com/modm-io/cmsis-svd-stm32