Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32MG24A120F1536GM48/SMU_S/STATUS#0x0
SMULOCK=UNLOCKED
No Description
SMU Lock
0 (UNLOCKED): undefined
1 (LOCKED): undefined
SMU Programming Error
https://github.com/cmsis-svd/cmsis-svd-data