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Linux/PHYTC-3P-PHYBOARD-AM335X: can not ping


Tool/software: Linux

When I Ping the external network, Ping does not work and no data is sent out. I checked the data package, ARP data is correct, clock signal is correct, but there is no signal on the data line, I use AM335x board, PHY chip is KSZ9031. Should I handle any interrupts when the cpsw is sent? I feel like something is not set up, but I'm sure CPDMA has been started.