On Fri, 14 Mar 2025 16:35:50 +0100, Nicolas Frattaroli wrote: > The GPIO3 A4 pin on the ArmSoM Sige5 is routed to the 40-pin GPIO > header. This pin can serve a variety of functions, including ones of > questionable use to us on a GPIO header such as the 25MHz clock of the > ethernet controller. > > Unfortunately, this is the precise function that it is being claimed for > by the gmac0 node in the Sige5 board dts, meaning it can't be used for > anything else despite serving no useful function in this role. Since it > goes through a RS0108 bidirectional voltage level translator with a > maximum data rate of 24Mbit/s in push-pull mode and 2Mbit/s data rate in > open-drain mode, it's doubtful as to whether the 25MHz clock signal > would even survive to the actual user-accessible pin it terminates in. > > [...] Applied, thanks! [1/1] arm64: dts: rockchip: remove ethm0_clk0_25m_out from Sige5 gmac0 commit: 73d246b4402c3356f6b3d13665de3a51eea7b555 Actually applied this some days ago, but b4 is of the opinion, I didn't sent out an applied-message yet, so doing that now :-) . Best regards, -- Heiko Stuebner <heiko@xxxxxxxxx>