topic Re: LS1046A: PHY register R/W failed in Layerscape https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967728#M4829 <HTML><HEAD></HEAD><BODY><P>The issue was escalated to the LSDK support.</P></BODY></HTML> Thu, 08 Aug 2019 07:05:12 GMT ufedor 2019-08-08T07:05:12Z LS1046A: PHY register R/W failed https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967727#M4828 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I'm using linux-4.14.104 which is based on LSDK-19.03, on the LS1046ARDB.<BR />I tried the following "mii-tool" command, for read/write phy register.</P><P></P><P># mii-tool -vv eth0</P><P></P><P>However, the command returns "Invalid argument".</P><P></P><P>&nbsp;&nbsp; Using SIOCGMIIPHY=0x8947<BR />&nbsp;&nbsp; SIOCGMIIPHY on 'eth0' failed: Invalid argument</P><P></P><P>I applied the attached patch, and fixed this issue.<BR />If this patch is appropriate, could you apply to next LSDK release?</P><P></P><P>The following information is provided for your reference.</P><P></P><P>This patch is based on the following changes.<BR />It supports only the "SIOCGMIIREG" operation.<BR /><A class="link-titled" href="https://source.codeaurora.org/external/qoriq/qoriq-components/linux/commit/?id=119d4a46b0d6fa82e645489c759bdac3a24aaa30" title="https://source.codeaurora.org/external/qoriq/qoriq-components/linux/commit/?id=119d4a46b0d6fa82e645489c759bdac3a24aaa30">https://source.codeaurora.org/external/qoriq/qoriq-components/linux/commit/?id=119d4a46b0d6fa82e645489c759bdac3a24aaa30</A>&nbsp;</P><P></P><P>Similar changes are proposed in the following threads.<BR /><A href="https://community.nxp.com/thread/366062">https://community.nxp.com/thread/366062</A>&nbsp;&nbsp;&nbsp;</P></BODY></HTML> Thu, 08 Aug 2019 03:30:00 GMT https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967727#M4828 yoshimorizumi 2019-08-08T03:30:00Z Re: LS1046A: PHY register R/W failed https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967728#M4829 <HTML><HEAD></HEAD><BODY><P>The issue was escalated to the LSDK support.</P></BODY></HTML> Thu, 08 Aug 2019 07:05:12 GMT https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967728#M4829 ufedor 2019-08-08T07:05:12Z Re: LS1046A: PHY register R/W failed https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967729#M4830 <HTML><HEAD></HEAD><BODY><P>Where to find this LSDK support。<SPAN style="color: #51626f; background-color: #ffffff;"><SPAN>&nbsp;</SPAN>LSDK-18.09 also have this problem。</SPAN></P></BODY></HTML> Mon, 25 Nov 2019 06:19:29 GMT https://community.nxp.com/t5/Layerscape/LS1046A-PHY-register-R-W-failed/m-p/967729#M4830 1271792207 2019-11-25T06:19:29Z