Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F107xx/USB_OTG_GLOBAL/FS_GRSTCTL#0x0
OTG_FS reset register (OTG_FS_GRSTCTL)
Core soft reset
HCLK soft reset
Host frame counter reset
RxFIFO flush
TxFIFO flush
TxFIFO number
AHB master idle
https://github.com/cmsis-svd/cmsis-svd-data