https://community.nxp.com/t5/Layerscape/Ls1043a-configure-SGMII-MAC9/m-p/1416879#M10098 <P>Hello,</P><P>I'm currently working on a custom board with LS1043a. This board has the following connection:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="chcmedeiros_0-1645458981236.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/171235i0A725741D540042F/image-size/medium?v=v2&amp;px=400" role="button" title="chcmedeiros_0-1645458981236.png" alt="chcmedeiros_0-1645458981236.png" /></span></P><P>We are using Uboot&nbsp;2020.04 and Linux&nbsp; 5.4.47. Our serdes protocol is&nbsp;0x3555.</P><P>At this&nbsp; point we are able to ping an external PC on Uboot (the SERDES PLL reset was necessary), but when reaching Linux we are not able to ping an external device (even when we re-send the PLL reset command), not sure if this is a device tree problem.</P><P>I added in the attachments my device tree, uboot log and kernel log, if someone had a similar concern and can give me any hint.</P> Mon, 21 Feb 2022 16:03:41 GMT chcmedeiros 2022-02-21T16:03:41Z https://community.nxp.com/t5/Layerscape/Ls1043a-configure-SGMII-MAC9/m-p/1416879#M10098 <P>Hello,</P><P>I'm currently working on a custom board with LS1043a. This board has the following connection:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="chcmedeiros_0-1645458981236.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/171235i0A725741D540042F/image-size/medium?v=v2&amp;px=400" role="button" title="chcmedeiros_0-1645458981236.png" alt="chcmedeiros_0-1645458981236.png" /></span></P><P>We are using Uboot&nbsp;2020.04 and Linux&nbsp; 5.4.47. Our serdes protocol is&nbsp;0x3555.</P><P>At this&nbsp; point we are able to ping an external PC on Uboot (the SERDES PLL reset was necessary), but when reaching Linux we are not able to ping an external device (even when we re-send the PLL reset command), not sure if this is a device tree problem.</P><P>I added in the attachments my device tree, uboot log and kernel log, if someone had a similar concern and can give me any hint.</P> Mon, 21 Feb 2022 16:03:41 GMT https://community.nxp.com/t5/Layerscape/Ls1043a-configure-SGMII-MAC9/m-p/1416879#M10098 chcmedeiros 2022-02-21T16:03:41Z https://community.nxp.com/t5/Layerscape/Ls1043a-configure-SGMII-MAC9/m-p/1416925#M10100 <P>Please provide connection schematics as PDF and measured frequencies of the SerDes reference clocks.</P> Mon, 21 Feb 2022 17:21:37 GMT https://community.nxp.com/t5/Layerscape/Ls1043a-configure-SGMII-MAC9/m-p/1416925#M10100 ufedor 2022-02-21T17:21:37Z