Resolved! STM32MP15 ECO 5.0.0 stm32-dwmac: probe of 5800a000.ethernet failed with error 1
STM32MP157AAAC custom board. Ethernet works with ECO 1 & 3.1. Used CubeMX to a add ethernet. PHY provided clock to MAC. RGMII interface. 1000Mb/s2. Applied changes exactly as based on the WIKI and as generated by CubeMX to OP-TEE U-boot and KernelB...