The speed should be TTCP -t → 9600 Mbps. TTCP -r → 10000 Mbps. Otherwise, there are some issues. Mainly the MAC_MCR should be immediately after PHY init and must be far from the next MAC register (MAC_MFFR) initialization. As per manual, 2 PHY clock cycle delay should be there after MAC_MCR initialization. Otherwise, in 20 times, there will be few times, when board is started, the Ethernet does not ping.
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