Hi @Oliver , It good to get your reply! we will try to activate the PTP clock as you have instructed. We have browsed site you recommend ( wiki/ethernet_overview) and still hard to find the detailed information about how to implement PTP in S...

We are now using new stm32mp1 kernel v5.4（en.FLASH-stm32mp1-openstlinux-5-4-dunfell-mp1-20-06-24 ） and have some difficulties to make PTP PPS working on 157C DK2 kit. Wwe need more specific instructions: is it still necessary to add those 4 patches...