https://community.nxp.com/t5/i-MX-Processors/DTS-for-MicroChip-KSZ9897-via-RGMII/m-p/2078198#M236169 <P>you dts is limited, pls refer to the chapter&nbsp;3.3 ENET FEC interface configuration of enclosed file, check if you set is correct or not</P> Thu, 10 Apr 2025 09:15:18 GMT joanxie 2025-04-10T09:15:18Z https://community.nxp.com/t5/i-MX-Processors/DTS-for-MicroChip-KSZ9897-via-RGMII/m-p/2075696#M236025 <P>Has anyone had any luck connecting imx8 to a MicroChip switch like the KSZ9897 via RGMII?&nbsp; We have been in an all out war for the past 2 weeks trying to make this work and I don't think we've progressed a bit.</P><P>The excerpts of our DTS are attached.&nbsp; We are connecting ENET1 to port 6 on the KSZ, but we can't get the littlest bit of encouragement from everything we've read and done.&nbsp;&nbsp;</P><P>dmesg looks like this:<BR /><BR /></P><P>[ 913.212173] imx-dwmac 30bf0000.ethernet eth1: validation of rgmii with support 00000000,00000000,00006280 and advertisement 00000000,00000000,00006280 failed: -EINVAL<BR />[ 913.227388] imx-dwmac 30bf0000.ethernet eth1: __stmmac_open: Cannot attach to PHY (error: -22)<BR />[ 913.251131] imx-dwmac 30bf0000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0<BR />[ 913.259402] imx-dwmac 30bf0000.ethernet eth1: validation of rgmii with support 00000000,00000000,00006280 and advertisement 00000000,00000000,00006280 failed: -EINVAL<BR />[ 913.274606] imx-dwmac 30bf0000.ethernet eth1: __stmmac_open: Cannot attach to PHY (error: -22)<BR />[ 1214.051420] imx-dwmac 30bf0000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0<BR />[ 1214.060102] imx-dwmac 30bf0000.ethernet eth1: validation of rgmii with support 00000000,00000000,00006280 and advertisement 00000000,00000000,00006280 failed: -EINVAL<BR />[ 1214.075328] imx-dwmac 30bf0000.ethernet eth1: __stmmac_open: Cannot attach to PHY (error: -22)<BR />[ 1214.099479] imx-dwmac 30bf0000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0<BR />[ 1214.107759] imx-dwmac 30bf0000.ethernet eth1: validation of rgmii with support 00000000,00000000,00006280 and advertisement 00000000,00000000,00006280 failed: -EINVAL<BR />[ 1214.122971] imx-dwmac 30bf0000.ethernet eth1: __stmmac_open: Cannot attach to PHY (error: -22)<BR />[ 1214.147204] imx-dwmac 30bf0000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0<BR />[ 1214.155488] imx-dwmac 30bf0000.ethernet eth1: validation of rgmii with support 00000000,00000000,00006280 and advertisement 00000000,00000000,00006280 failed: -EINVAL<BR />[ 1214.170706] imx-dwmac 30bf0000.ethernet eth1: __stmmac_open: Cannot attach to PHY (error: -22)<BR />[ 1214.194868] imx-dwmac 30bf0000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0<BR />[ 1214.203148] imx-dwmac 30bf0000.ethernet eth1: validation of rgmii with support 00000000,00000000,00006280 and advertisement 00000000,00000000,00006280 failed: -EINVAL<BR />[ 1214.218366] imx-dwmac 30bf0000.ethernet eth1: __stmmac_open: Cannot attach to PHY (error: -22)</P><P>&nbsp;</P><P>Any suggestions or hints would be tremendously appreciated.</P><P>Thanks.</P> Tue, 08 Apr 2025 03:55:15 GMT https://community.nxp.com/t5/i-MX-Processors/DTS-for-MicroChip-KSZ9897-via-RGMII/m-p/2075696#M236025 syntech66 2025-04-08T03:55:15Z https://community.nxp.com/t5/i-MX-Processors/DTS-for-MicroChip-KSZ9897-via-RGMII/m-p/2078198#M236169 <P>you dts is limited, pls refer to the chapter&nbsp;3.3 ENET FEC interface configuration of enclosed file, check if you set is correct or not</P> Thu, 10 Apr 2025 09:15:18 GMT https://community.nxp.com/t5/i-MX-Processors/DTS-for-MicroChip-KSZ9897-via-RGMII/m-p/2078198#M236169 joanxie 2025-04-10T09:15:18Z