Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32BG22C224F512GM32/CMU_S/EM01GRPACLKCTRL#0x0
No Description
Clock Select
1 (HFRCODPLL): HFRCODPLL is clocking EM01GRPACLK
2 (HFXO): HFXO is clocking EM01GRPACLK
3 (FSRCO): FSRCO is clocking EM01GRPACLK
https://github.com/cmsis-svd/cmsis-svd-data