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It > only adds the external reference clock used by the board. > > This follows the same pattern used by the i.MX8MP EVK, where the PCIe > PHY node only provides the external "ref" clock together with > fsl,refclk-pad-mode = . > > This is also why CHECK_DTBS does not report any warnings for this node. Oh! I missed think it is pcie node. Frank > > $: sed -n '/^&pcie_phy {/,/^};/p' arch/arm64/boot/dts/freescale/imx8mp-evk.dts > &pcie_phy { > fsl,refclk-pad-mode = ; > clocks = <&pcie0_refclk>; > clock-names = "ref"; > status = "okay"; > }; > > Thanks, > Stefano