Re: [PATCH 4/5] arm64: dts: qcom: ipq5018: add MDIO buses
From: Konrad Dybcio
Date: Tue May 27 2025 - 07:07:57 EST
On 5/25/25 7:56 PM, George Moussalem via B4 Relay wrote:
> From: George Moussalem <george.moussalem@xxxxxxxxxxx>
>
> IPQ5018 contains two mdio buses of which one bus is used to control the
> SoC's internal GE PHY, while the other bus is connected to external PHYs
> or switches.
>
> There's already support for IPQ5018 in the mdio-ipq4019 driver, so let's
> simply add the mdio nodes for them.
>
> Signed-off-by: George Moussalem <george.moussalem@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/ipq5018.dtsi | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq5018.dtsi b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
> index 130360014c5e14c778e348d37e601f60325b0b14..03ebc3e305b267c98a034c41ce47a39269afce75 100644
> --- a/arch/arm64/boot/dts/qcom/ipq5018.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
> @@ -182,6 +182,30 @@ pcie0_phy: phy@86000 {
> status = "disabled";
> };
>
> + mdio0: mdio@88000 {
> + compatible = "qcom,ipq5018-mdio";
> + reg = <0x00088000 0x64>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + clocks = <&gcc GCC_MDIO0_AHB_CLK>;
> + clock-names = "gcc_mdio_ahb_clk";
I see there's resets named GCC_MDIO[01]_BCR - are they related to
these hosts?
fwiw the addressses look good
Konrad