[PATCH v3 2/2] arm64: dts: rockchip: Add ArmSoM CM5 and CM5-IO

[Jiaxing Hu]

> Try setting phy-mode to rgmii-id, and these delays to 0, or removing
> them.

You are right. The PCB does not use long clock lines, so rgmii-id is the
correct description and the delays should not be in the DT. Most rk3576
boards upstream already use rgmii-id with no tx_delay/rx_delay.

I will switch to rgmii-id, let the YT8531 add both delays internally, drop
tx_delay/rx_delay, and re-test the 1000 Mbit/s link on the board before I
send v4.

Thanks,
Jiaxing