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IDProjectCategoryView StatusDate SubmittedLast Update
0006601fsimx_LinuxEthernetpublic2025-01-28 10:182025-01-28 10:20
Reportergerbach Assigned To 
PrioritynormalSeverityminorReproducibilitysometimes
Status newResolutionopen 
Product Versionfsimx8mm-Y2020.06 
Target Versionfsimx8m-next 
Summary0006601: [PCore8MM] The Atheros ethernet PHY sometimes loses link without reason
Descriptionhttps://forum.fs-net.de/index.php?thread/4922-ethernet-issue/
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gerbach

2025-01-28 10:20

developer   ~0005267

Last edited: 2025-01-28 10:20

 The PicoCorreMX8MM uses poll to get the link status.
With switching to interrupt GPIO the issue does not seem tooccur anymore.

arch/arm64/boot/dts/F+S/picocoremx8mm-lpddr4.dts :
 
                               ethphy0: ethernet-phy@0 {
                                               compatible = "ethernet-phy-ieee802.3-c22";
                                               reg = <4>;
                                               interrupt-parent = <&gpio1>;
                                               interrupts = <4 0>;
                                               reset-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
                                               reset-assert-us = <10000>;
                                               reset-deassert-us = <80000>;
                                               qca,disable-smarteee;
                               };