[PATCH 2/2] ARM: dts: aspeed: add device tree for ASRock Rack ALTRAD8 BMC

Andrew Lunn andrew at lunn.ch
Fri Sep 12 00:09:34 AEST 2025


> +&mac0 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_rmii1_default>;
> +	clocks = <&syscon ASPEED_CLK_GATE_MAC1CLK>,
> +		 <&syscon ASPEED_CLK_MAC1RCLK>;
> +	clock-names = "MACCLK", "RCLK";
> +	use-ncsi;
> +
> +	nvmem-cells = <&eth0_macaddress>;
> +	nvmem-cell-names = "mac-address";
> +};

There is no phy-handle here, and no mdio node in this file. What is
the MAC connected to? Does it connect to the hosts Ethernet interface?

> +
> +&mac1 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
> +
> +	nvmem-cells = <&eth1_macaddress>;
> +	nvmem-cell-names = "mac-address";
> +};

RGMII pinctrl is referenced here. This opens up the question about
RGMII delays. What is this MAC connected to?

	Andrew


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