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i.MX8QM ENET_REFCLK_125MHz source?

Question asked by Peter Bain on Nov 6, 2019
Latest reply on Nov 12, 2019 by Yuri Muhin

I'm designing and RGMII interface  for a 1000BASE-T1 PHY and understand that ENET_RGMII_TXC is an output to provide a 125MHz signal to the PHY.
On the i.MX6, this 125MHz clock could be provided externally or routed from GPIO16. Is there an equivalent internal clock reference on the i.MX8 or do I need to provide this with an external crystal on the ENET_REFCLK_125MHz pin? I can't find anything in the reference manual to help. Thanks!