[PATCH v5 2/2] arm64: dts: rockchip: add ALIENTEK QuarkPi-CA2

[Andrew Lunn]

On Thu, Oct 01, 2026 at 11:19:47PM +0800, BG9OXA wrote:
> The QuarkPi-CA2 is an RK3588S based single board computer with LPDDR4X
> RAM, eMMC, microSD, one Gigabit Ethernet port (YT8531 PHY), HDMI 2.1,
> DisplayPort over USB-C, M.2 PCIe 2.0 x1, USB 2.0 and 3.0 host ports,
> an ES8388 audio codec with headphone amplifier, a MIPI CSI camera
> connector, an IR receiver, a PWM controlled fan, ADC keys and a 40-pin
> GPIO header.
> 
> The GbE MAC receives its reference clock from the PHY, and the PHY keeps
> its clock output enabled while the link is down so that the MAC can be
> initialised.
> 
> The MDIO bus is described with separate mdio and mdio-child nodes, and
> the RK3588S RGMII delays are applied on the MAC side (tx_delay).
> 
> Signed-off-by: BG9OXA <bg9oxa at 163.com>

I assume BG9OXA is a radio call sign. So it is unique, and nationally
assigned.

https://www.kernel.org/doc/html/latest/process/submitting-patches.html

says it needs to be "a known identity". I've no idea if a call sign
qualifies. Signed-off-by: is considered a legal statement....

> +&gmac1 {
> +	phy-mode = "rgmii-id";
> +	clock_in_out = "input";
> +
> +	snps,reset-gpio = <&gpio0 RK_PD5 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	snps,reset-delays-us = <0 20000 100000>;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&gmac1_miim
> +		     &gmac1_tx_bus2
> +		     &gmac1_rx_bus2
> +		     &gmac1_rgmii_clk
> +		     &gmac1_rgmii_bus
> +		     &gmac1_clkinout>;
> +
> +	phy-handle = <&rgmii_phy1>;
> +	status = "okay";
> +};
> +
> +&mdio1 {
> +	rgmii_phy1: ethernet-phy at 1 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <0x1>;
> +
> +		motorcomm,clk-out-frequency-hz = <125000000>;
> +		motorcomm,keep-pll-enabled;
> +	};
> +};

For these two nodes only:

Reviewed-by: Andrew Lunn <andrew at lunn.ch>

    Andrew