[PATCH 2/2] arm64: dts: rockchip: Add rk3399-evb-ind board

Chaoyi Chen chaoyi.chen at rock-chips.com
Sun Apr 27 18:47:34 PDT 2025


Hi Andrew,

On 2025/4/28 4:42, Andrew Lunn wrote:
>> +&gmac {
>> +	assigned-clocks = <&cru SCLK_RMII_SRC>;
>> +	assigned-clock-parents = <&clkin_gmac>;
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&rgmii_pins>;
>> +	clock_in_out = "input";
>> +	phy-supply = <&vcc_phy>;
>> +	phy-mode = "rgmii";
> Does the PCB have extra long clock lines to implement the RGMII 2ns
> delay?
The 2ns delay of RGMII is implemented inside the RK3399 chip instead of 
PCB lines, and there are also additional delayline configurations.

>
> 	Andrew
>
>



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